New release s390-tools-2.31.0

Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

.codespell.ignore

@@ -0,0 +1,3 @@
+parm
+parms
+crate

.codespellrc

@@ -1,5 +1,4 @@
 [codespell]
-ignore-words-list = parm,parms
-skip = ''
+ignore-words = .codespell.ignore
 count = ''
 quiet-level = 3

.editorconfig

@@ -8,6 +8,12 @@ insert_final_newline = true
 charset = utf-8
 indent_style = tab
 tab_width = 8
+trim_trailing_whitespace = true
+
+[*.rs]
+indent_style = space
+indent_size = 4
+tab_width = 4
 
 [*.sh]
 shell_variant = bash  # used by `shfmt`
@@ -19,3 +25,9 @@ indent_size = 2
 [*.py]
 indent_style = space
 indent_size = 4
+
+[{Makefile,*.mak}]
+indent_style = tab
+
+[{COMMIT_EDITMSG,EDIT_DESCRIPTION}]
+max_line_length = 72

.gitignore

@@ -9,6 +9,10 @@
 tags
 TAGS
 
+# compile_commands.json
+# (https://clang.llvm.org/docs/JSONCompilationDatabase.html)
+compile_commands.json
+
 # clangd cache (https://clangd.llvm.org/design/indexing#backgroundindex)
 .cache/
 
@@ -19,6 +23,8 @@ TAGS
 #
 # Ignore generated executables and other generated files
 #
+**/.detect-openssl.dep.c
+*.debug
 ap_tools/ap-check
 cmsfs-fuse/cmsfs-fuse
 cpacfstats/cpacfstats
@@ -26,6 +32,7 @@ cpacfstats/cpacfstatsd
 cpumf/chcpumf
 cpumf/lscpumf
 cpumf/lshwc
+cpumf/lspai
 cpumf/pai
 cpuplugd/cpuplugd
 dasdfmt/dasdfmt
@@ -50,8 +57,8 @@ iucvterm/src/iucvconn
 iucvterm/src/iucvtty
 iucvterm/src/ttyrun
 iucvterm/test/test_afiucv
-libap/check-dep-lock
 libap/check-dep-json
+libap/check-dep-lock
 libekmfweb/check-dep-libekmfweb
 libekmfweb/detect-openssl-version.dep
 libekmfweb/libekmfweb.so
@@ -96,6 +103,7 @@ zdev/src/chzdev
 zdev/src/chzdev_usage.c
 zdev/src/lszdev
 zdev/src/lszdev_usage.c
+zdev/src/zdev_id
 zdsfs/zdsfs
 zdump/.check_dep_fuse
 zdump/.check_dep_zgetdump
@@ -115,7 +123,6 @@ zipl/boot/*.exec
 zipl/boot/.loaders
 zipl/boot/data.h
 zipl/src/chreipl_helper.device-mapper
-zdev/src/zdev_id
 zipl/src/zipl
 zipl/src/zipl-editenv
 zipl/src/zipl_helper.device-mapper
@@ -129,4 +136,3 @@ zkey/kmip/zkey-kmip.so
 zkey/zkey
 zkey/zkey-cryptsetup
 zpcictl/zpcictl
-**/.detect-openssl.dep.c

.pre-commit-config.yaml

@@ -0,0 +1,35 @@
+---
+exclude: \.(crt|crl)$
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.1.0
+    hooks:
+      - id: check-merge-conflict
+      - id: end-of-file-fixer
+      - id: mixed-line-ending
+      - id: trailing-whitespace
+      - id: check-executables-have-shebangs
+      - id: check-shebang-scripts-are-executable
+        exclude_types: ['rust']
+  - repo: local
+    hooks:
+      - id: git-clang-format
+        name: git-clang-format
+        description: Run git-clang-format
+        entry: git
+        args: [clang-format, --staged, --]
+        pass_filenames: true
+        language: system
+        require_serial: true
+        minimum_pre_commit_version: "2.9.0"
+        types_or: [c++, c]
+  - repo: https://github.com/codespell-project/codespell
+    rev: v2.2.1
+    hooks:
+      - id: codespell
+        exclude_types: ['rust']
+  - repo: https://github.com/jumanjihouse/pre-commit-hooks
+    rev: 3.0.0
+    hooks:
+      - id: shellcheck
+        args: ["--external-sources"]

.rustfmt.toml

@@ -0,0 +1,12 @@
+edition = "2021"
+newline_style = "Unix"
+
+# Unstable options that help catching some mistakes in formatting and that we may want to enable
+# when they become stable.
+#
+# They are kept here since they are useful to run from time to time.
+#format_code_in_doc_comments = true
+#reorder_impl_items = true
+#comment_width = 100
+#wrap_comments = true
+#normalize_comments = true

.shellcheckrc

@@ -0,0 +1,5 @@
+# Search in the current script's directory by default (since 0.7.0)
+source-path=SCRIPTDIR
+
+# Allow external-sources (since 0.8.0)
+external-sources=true

AUTHORS.md

@@ -27,6 +27,7 @@ List of all individuals having contributed content to s390-tools
 - Eberhard Pasch
 - Eduard Shishkin
 - Einar Lueck
+- Eric Farman
 - Eric Sandeen
 - Erwin Vicari
 - Eugene Crosser
@@ -35,6 +36,7 @@ List of all individuals having contributed content to s390-tools
 - Farhan Ali
 - Fedor Loshakov
 - Felix Beck
+- Finn Callies
 - Frank Blaschka
 - Frank Heimes
 - Frank Munzert
@@ -56,6 +58,7 @@ List of all individuals having contributed content to s390-tools
 - Horst Hummel
 - Ingo Franzki
 - Ingo Tuchscherer
+- Jakub Čajka
 - Jan Glauber
 - Jan Höppner
 - Jan Willeke
@@ -124,6 +127,8 @@ List of all individuals having contributed content to s390-tools
 - Thomas Richter
 - Thomas Spatzier
 - Thomas Weber
+- Thorsten Winkler
+- Tobias Huschle
 - Tuan Hoang
 - Ursula Braun
 - Utz Bacher
@@ -134,3 +139,4 @@ List of all individuals having contributed content to s390-tools
 - Volker Sameske
 - Wenjia Zhang
 - Wolfgang Taphorn
+- Yaakov Selkowitz

CHANGELOG.md

@@ -1,6 +1,104 @@
 Release history for s390-tools (MIT version)
 --------------------------------------------
 
+* __v2.31.0 (2024-02-02)__
+
+  For Linux kernel version: 6.7
+
+  General:
+  - common.mak: Set default C/C++ standard to gnu11/gnu++11
+
+  Add new tools / libraries:
+  - pvapconfig: Tool to automatically configure APQNs in SE KVM guests
+  - s390-tools: Provide pre-commit configuration
+
+  Changes of existing tools:
+  - cpuplugd: Adjust to CPU 0 being no longer hotpluggable
+  - dbginfo.sh: Check for Dynamic Partition Mode
+  - dbginfo.sh: Update man page and copyright
+  - rust/pv: Add user-data signing and verifying
+  - rust/pvsecret: Add user defined signatures and verifications
+  - zdev/dracut: Consolidate device configuration
+
+  Bug Fixes:
+  - dbginfo.sh: Fix relative path on script copy
+  - libkmipclient: Fix build with libxml2-2.12.0
+  - pvsecret: Fix panic if empty file is used as host key document
+  - rust/pv: Fix 'elided_lifetimes_in_associated_constant' warning
+
+* __v2.30.0 (2023-12-01)__
+
+  For Linux kernel version: 6.6
+
+  Add new tools / libraries:
+  - lspai: Tool to display PAI counter sets
+  - s390-tools: Provide a ShellCheck configuration
+
+  Changes of existing tools / libraries:
+  - cpumf/pai: Add command line option for realtime scheduling
+  - dbginfo.sh: enhance ethtool collection for ROCE
+  - libutil/util_lockfile: add routine to return owning pid of file lock
+  - lszcrypt: Improve lszcrypt output on SE guests
+  - rust: Use a single workspace for all rust tools
+  - zdev: limit the derivation of ZDEV_SITE_ID
+  - zdump/df_s390: Update 'zgetdump -i' output with zlib info
+  - zdump/dfi_s390: Support reading compressed s390_ext dumps
+  - zipl/boot: Integrate zlib compression to single volume DASD dumper
+  - zipl/boot: compile the bootloaders only if HOST_ARCH is s390x
+  - zipl: Add --no-compress option to zipl command
+  - zkey: Also check for deconfigured and check-stopped cards
+  - dbginfo.sh: fix relative path on script copy
+
+  Bug Fixes:
+  - ap_tools/ap-check: handle get-attributes between pre and post event
+  - libutil: fix util_file_read_*() using wrong format specifiers
+  - rust/pv: fix Invalid write of size 1
+
+* __v2.29.0 (2023-08-04)__
+
+  For Linux kernel version: 6.5
+
+  General:
+  - s390-tools now supports tools written in Rust.
+  - Add `compdb` Makefile target to create 'compile_commands.json' to LSP
+    backends in IDEs and editors
+
+  Add new tools / libraries:
+  - rust/pv: Library for pv tools written in rust
+  - rust/pvsecret: Tool to manage UV-secrets
+
+  Changes of existing tools:
+  - dbginfo.sh: Global IFS variable
+  - genprotimg: Add support for add-secret requests
+  - genprotimg: Build debuginfo files for bootloader
+  - hyptop: Add real SMT utilization field
+  - hyptop: Allow users to set speedup factor
+  - pvattest: Add yaml-output for verify command
+  - zipl: Build debuginfo files for bootloader
+
+  Bug Fixes:
+  - dump2tar: Fix truncated paths
+  - zdev/dracut: fix kdump build to integrate with site support
+
+* __v2.28.0 (2023-07-11)__
+
+  For Linux kernel version: 6.4
+
+  Changes of existing tools:
+  - chzcrypt: Support for SE AP pass-through support
+  - genprotimg: Add support for non-s390x architectures
+  - lszcrypt: Support for SE AP pass-through support
+  - zdev: Add support for autoquiesce related sysfs attributes
+
+  Bug Fixes:
+  - ap_tools/ap-check: Handle missing 'matrix' and 'control_domains' attrs
+  - ap_tools/ap-check: Hold ap config file lock over get attributes
+  - s390-tools: Fix build for ppc64le
+  - zdev: Add missing label in the udev-rules
+  - zdev: Add proper value input for the ZDEV_SITE_ID key
+  - zdev: Use rename-file to avoid any symlinks created
+  - zipl/dump: fix ngdump dracut helper script
+
 * __v2.27.0 (2023-05-30)__
 
   For Linux kernel version: 6.3

Makefile

@@ -15,11 +15,12 @@ TOOL_DIRS = zipl zdump fdasd dasdfmt dasdview tunedasd \
 	   vmcp man mon_tools dasdinfo vmur cpuplugd ipl_tools \
 	   ziomon iucvterm hyptop cmsfs-fuse qethqoat zfcpdump zdsfs cpumf \
 	   systemd hmcdrvfs cpacfstats zdev dump2tar zkey netboot etc zpcictl \
-	   genprotimg lsstp hsci hsavmcore chreipl-fcp-mpath ap_tools pvattest
+	   genprotimg lsstp hsci hsavmcore chreipl-fcp-mpath ap_tools pvattest \
+	   rust
 else
 BASELIB_DIRS =
 LIB_DIRS = libpv
-TOOL_DIRS = pvattest
+TOOL_DIRS = genprotimg pvattest rust
 endif
 
 SUB_DIRS = $(BASELIB_DIRS) $(LIB_DIRS) $(TOOL_DIRS)

README.md

@@ -15,6 +15,11 @@ The package also contains the following files:
 Package contents
 ----------------
 
+ * rust:
+   all s390-tools that are written in rust and require external crates.
+   Disable the compilation of all tools in `rust/` using HAVE_CARGO=0
+   See the `rust/README.md` for Details
+
  * dasdfmt:
    Low-level format ECKD DASDs with the classical Linux disk layout or the new
    z/OS compatible disk layout.
@@ -305,13 +310,14 @@ build options:
 | net-snmp       | `HAVE_SNMP`        | osasnmpd                              |
 | glibc-static   | `HAVE_LIBC_STATIC` | zfcpdump                              |
 | openssl        | `HAVE_OPENSSL`     | genprotimg, zkey, libekmfweb,         |
-|                |                    | libkmipclient, pvattest, zgetdump     |
+|                |                    | libkmipclient, pvattest, zgetdump,    |
+|                |                    | rust/pvsecret,                        |
 | cryptsetup     | `HAVE_CRYPTSETUP2` | zkey-cryptsetup                       |
 | json-c         | `HAVE_JSONC`       | zkey-cryptsetup, libekmfweb,          |
 |                |                    | libkmipclient                         |
 | glib2          | `HAVE_GLIB2`       | genprotimg, pvattest, zgetdump        |
 | libcurl        | `HAVE_LIBCURL`     | genprotimg, libekmfweb, libkmipclient,|
-|                |                    | pvattest                              |
+|                |                    | pvattest, rust/pvsecret,              |
 | libxml2        | `HAVE_LIBXML2`     | libkmipclient                         |
 | systemd        | `HAVE_SYSTEMD`     | hsavmcore                             |
 | libudev        | `HAVE_LIBUDEV`     | cpacfstatsd                           |
@@ -324,6 +330,7 @@ This table lists additional build or install options:
 |                  |                              | zipl                     |
 | initramfs-tools  | `HAVE_INITRAMFS`             | zdev, zipl               |
 |                  | `ZDEV_ALWAYS_UPDATE_INITRD`  | zdev                     |
+| rust             | `HAVE_CARGO`                 | rust/*                   |
 
 The s390-tools build process uses "pkg-config" and therefore it must be
 available.
@@ -334,6 +341,14 @@ Build and runtime requirements for specific tools
 In the following more details on the build an runtime requirements of
 the different tools are provided:
 
+* rust/pvsecret:
+  For building pvsecret you need OpenSSL version 1.1.1 or newer
+  installed (openssl-devel.rpm). Also required is cargo and libcurl.
+  Tip: you may skip the pvsecret build by adding
+  `HAVE_OPENSSL=0`, `HAVE_LIBCURL=0`, or `HAVE_CARGO=0`.
+
+  The runtime requirements are: openssl-libs (>= 1.1.1).
+
 * dbginfo.sh:
   The tar package is required to archive collected data.
 
@@ -371,6 +386,24 @@ the different tools are provided:
   - Packages: blktrace, multipath-tools, sg3-utils
   - Tools: rsync, tar, lsscsi
 
+* zipl
+  For CCW-type DASD dump, zlib compression can be used to compress the dump
+  data before writing it to the DASD partition. It can benefit from
+  s390 on-chip compression accelerator (DFLTCC) and provide a faster dumping
+  process, hence lower system downtime.
+  The zlib version integrated with zipl (zipl/boot/zlib) is based on the Linux
+  kernel zlib (kernel version 6.3) which represents zlib version 1.1.3 with a
+  limited number of functions and a number of updates on top including s390
+  hardware compression (DFLTCC) support. Also, all memory allocations are
+  performed in advance, which aligns with zipl requirements.
+  The CCW-type standalone dumper is built as a single binary and must be
+  loaded to stage2 during boot. Hence, all required zlib functions must be
+  integrated into it, and its size is restricted. To limit the size, only
+  deflate-related parts are integrated (no decompression is required during
+  dumping).
+  Removing the inflate modules and function prototypes are the only major
+  modifications made to the kernel version of zlib.
+
 * zgetdump
   For building zgetdump you need OpenSSL version 1.1.0 or newer
   installed (openssl-devel.rpm). Also required is glib2

ap_tools/ap-check.c

@@ -434,14 +434,23 @@ static int check_other_mdev_sysfs_cb(const char *path, const char *filename,
 	    strcasecmp(filename, cbdata->uuid) == 0)
 		return 0;
 
-	dev2 = vfio_ap_device_new();
+	/*
+	 * Read the 'matrix' attribute to get the list of queues for the active
+	 * device.  If the sysfs attribute is unreadable, assume the device is
+	 * being destroyed and skip it.
+	 */
 	matrix_path = path_get_vfio_ap_attr(filename, "matrix");
 	f = fopen(matrix_path, "r");
+	free(matrix_path);
+	if (!f)
+		return 0;
+
+	dev2 = vfio_ap_device_new();
+
 	while (fgets(buf, sizeof(buf), f))
 		vfio_ap_parse_matrix(dev2, buf);
 	vfio_ap_sort_matrix_results(dev2);
 	fclose(f);
-	free(matrix_path);
 
 	/* Look for conflicts between target device and this device */
 	rc = find_apqn_conflicts(filename, dev->adapters, dev->domains,
@@ -787,21 +796,61 @@ static int ap_check_handle_get_attributes(struct ap_check_anchor *anc)
 	char buf[80];
 	char *path;
 	FILE *f;
+	int rc;
 
+	/*
+	 * For the get-attributes callout, we are typically called without the
+	 * callout lock held.  However, there is a particular scenario (define
+	 * of an active mdev) where we may or may not be called with the lock
+	 * already held on behalf of mdevctl, depending on the mdevctl version.
+	 * Let's test for lock ownership first and, if already owned by the
+	 * parent (mdevctl) proceed rather than waiting on the file lock.
+	 */
+	rc = ap_try_lock_callout();
+	switch (rc) {
+	case 0:
+		/* Lock acquired */
+		anc->cleanup_lock = true;
+		break;
+	case 1:
+		/* Lock held by parent -- trust the lock will remain held */
+		break;
+	default:
+		/* Lock not acquired or held by parent -- do a normal obtain */
+		rc = ap_get_lock_callout();
+		if (rc) {
+			fprintf(stderr,
+				"Failed to acquire configuration lock %d\n",
+				rc);
+			return -1;
+		}
+		anc->cleanup_lock = true;
+	}
+
+	/*
+	 * Read the 'matrix' and 'control_domains' attributes to get the
+	 * current attributes of the active device.  If either of these sysfs
+	 * attributes is unreadable, assume the device is being destroyed
+	 * and return nothing.
+	 */
 	path = path_get_vfio_ap_attr(anc->uuid, "matrix");
 	f = fopen(path, "r");
+	free(path);
+	if (!f)
+		return 0;
 	while (fgets(buf, sizeof(buf), f))
 		vfio_ap_parse_matrix(dev, buf);
 	vfio_ap_sort_matrix_results(dev);
 	fclose(f);
-	free(path);
 
 	path = path_get_vfio_ap_attr(anc->uuid, "control_domains");
 	f = fopen(path, "r");
+	free(path);
+	if (!f)
+		return 0;
 	while (fgets(buf, sizeof(buf), f))
 		vfio_ap_parse_control(dev, buf);
 	fclose(f);
-	free(path);
 
 	printf("[{");
 

chreipl-fcp-mpath/Makefile

@@ -17,7 +17,6 @@
 #   GNU awk:
 #     - gawk
 
-override SHELL		:= /bin/bash
 override .SHELLFLAGS	:= -O globstar -O nullglob -O extglob -c
 
 # Include common s390-tools definitions

common.mak

@@ -8,10 +8,14 @@ ASAN ?= 0
 ENABLE_WERROR ?= 0
 OPT_FLAGS ?=
 MAKECMDGOALS ?=
+CARGO ?= cargo
+CARGOFLAGS ?=
 
 ifeq ($(COMMON_INCLUDED),false)
 COMMON_INCLUDED := true
 
+override SHELL := /bin/bash
+
 # 'BUILD_ARCH' is the architecture of the machine where the build takes place
 BUILD_ARCH := $(shell uname -m | sed -e 's/i.86/i386/' -e 's/sun4u/sparc64/' -e 's/arm.*/arm/' -e 's/sa110/arm/')
 # 'HOST_ARCH' is the architecture of the machine that will run the compiled output
@@ -28,7 +32,7 @@ endif
 # The variable "DISTRELEASE" should be overwritten in rpm spec files with:
 # "make DISTRELEASE=%{release}" and "make install DISTRELEASE=%{release}"
 VERSION            = 2
-RELEASE            = 27
+RELEASE            = 31
 PATCHLEVEL         = 0
 DISTRELEASE        = build-$(shell date +%Y%m%d)
 S390_TOOLS_RELEASE = $(VERSION).$(RELEASE).$(PATCHLEVEL)-$(DISTRELEASE)
@@ -89,19 +93,19 @@ define cmd_define_and_export
 endef
 
 define define_toolchain_variables
-	$(eval $(call cmd_define_and_export,     AS$(1),"  AS$(1)       ",$(2)as))
-	$(eval $(call cmd_define_and_export,     CC$(1),"  CC$(1)       ",$(2)gcc))
-	$(eval $(call cmd_define_and_export,   LINK$(1),"  LINK$(1)     ",$$(CC$(1))))
-	$(eval $(call cmd_define_and_export,    CXX$(1),"  CXX$(1)      ",$(2)g++))
-	$(eval $(call cmd_define_and_export, LINKXX$(1),"  LINKXX$(1)   ",$$(CXX$(1))))
-	$(eval $(call cmd_define_and_export,    CPP$(1),"  CPP$(1)      ",$(2)gcc -E))
-	$(eval $(call cmd_define_and_export,     AR$(1),"  AR$(1)       ",$(2)ar))
-	$(eval $(call cmd_define_and_export,     NM$(1),"  NM$(1)       ",$(2)nm))
-	$(eval $(call cmd_define_and_export,   STRIP$(1),"  STRIP$(1)    ",$(2)strip))
-	$(eval $(call cmd_define_and_export,OBJCOPY$(1),"  OBJCOPY$(1)  ",$(2)objcopy))
-	$(eval $(call cmd_define_and_export,OBJDUMP$(1),"  OBJDUMP$(1)  ",$(2)objdump))
-	$(eval PKG_CONFIG$(1) = pkg-config)
-	$(eval export PKG_CONFIG$(1))
+	$(call cmd_define_and_export,     AS$(1),"  AS$(1)          ",$(2)as)
+	$(call cmd_define_and_export,     CC$(1),"  CC$(1)          ",$(2)gcc)
+	$(call cmd_define_and_export,   LINK$(1),"  LINK$(1)        ",$$(CC$(1)))
+	$(call cmd_define_and_export,    CXX$(1),"  CXX$(1)         ",$(2)g++)
+	$(call cmd_define_and_export, LINKXX$(1),"  LINKXX$(1)      ",$$(CXX$(1)))
+	$(call cmd_define_and_export,    CPP$(1),"  CPP$(1)         ",$(2)gcc -E)
+	$(call cmd_define_and_export,     AR$(1),"  AR$(1)          ",$(2)ar)
+	$(call cmd_define_and_export,     NM$(1),"  NM$(1)          ",$(2)nm)
+	$(call cmd_define_and_export,  STRIP$(1),"  STRIP$(1)       ",$(2)strip)
+	$(call cmd_define_and_export,OBJCOPY$(1),"  OBJCOPY$(1)     ",$(2)objcopy)
+	$(call cmd_define_and_export,OBJDUMP$(1),"  OBJDUMP$(1)     ",$(2)objdump)
+	PKG_CONFIG$(1) = pkg-config
+	export PKG_CONFIG$(1)
 endef
 
 # If the host architecture is not the same as the build architecture
@@ -115,15 +119,19 @@ ifneq ($(HOST_ARCH),$(BUILD_ARCH))
   endif
 endif
 
-$(call define_toolchain_variables,_FOR_BUILD,)
-$(call define_toolchain_variables,,$(CROSS_COMPILE))
+$(eval $(call define_toolchain_variables,_FOR_BUILD,))
+$(eval $(call define_toolchain_variables,,$(CROSS_COMPILE)))
 
-$(eval $(call cmd_define,RUNTEST,"  RUNTEST ",$(S390_TEST_LIB_PATH)/s390_runtest))
-$(eval $(call cmd_define,    CAT,"  CAT     ",cat))
-$(eval $(call cmd_define,    SED,"  SED     ",sed))
-$(eval $(call cmd_define,   GZIP,"  GZIP    ",gzip))
-$(eval $(call cmd_define,     MV,"  MV      ",mv))
-$(eval $(call cmd_define,  PERLC,"  PERLC   ",perl -c))
+
+$(eval $(call cmd_define,    RUNTEST,"  RUNTEST     ",$(S390_TEST_LIB_PATH)/s390_runtest))
+$(eval $(call cmd_define,        CAT,"  CAT         ",cat))
+$(eval $(call cmd_define,        SED,"  SED         ",sed))
+$(eval $(call cmd_define,       GZIP,"  GZIP        ",gzip))
+$(eval $(call cmd_define,         MV,"  MV          ",mv))
+$(eval $(call cmd_define,      PERLC,"  PERLC       ",perl -c))
+$(eval $(call cmd_define,CARGO_BUILD,"  CARGO BUILD ",$(CARGO) build))
+$(eval $(call cmd_define,CARGO_TEST, "  CARGO TEST  ",$(CARGO) test))
+$(eval $(call cmd_define,CARGO_CLEAN,"  CARGO CLEAN ",$(CARGO) clean))
 
 CHECK           = sparse
 CHECK_SILENT   := $(CHECK)
@@ -133,8 +141,10 @@ SKIP            = echo           "  SKIP    $(call reldir) due to"
 
 INSTALL         = install
 CP              = cp
+ALL_CARGOFLAGS := $(CARGOFLAGS)
 ifneq ("${V}","1")
 	MAKEFLAGS += --quiet
+	ALL_CARGOFLAGS += --quiet
 	echocmd=echo $1$(call reldir)$2;
 	RUNTEST += > /dev/null 2>&1
 else
@@ -211,8 +221,8 @@ fi
 # Returns the linker option if available and nothing otherwise
 #
 define test_linker_flag
-$(shell printf "int main(void) {return 0;}\n" | \
-        ( $(CC) "-Wl,$1" -o /dev/null -x c - ) >/dev/null 2>&1 && printf -- '-Wl,%s' "$1")
+$(shell printf ".globl _start\n_start:\nnop\n" | \
+        ( $(LINK) "-Wl,$1" -o /dev/null -nostdlib -x assembler -) >/dev/null 2>&1 && printf -- '-Wl,%s' "$1")
 endef
 
 NO_WARN_RWX_SEGMENTS_LDFLAGS := $(call test_linker_flag,"--no-warn-rwx-segments")
@@ -294,7 +304,7 @@ ZFCPDUMP_FLAVOR	= zfcpdump
 export ZFCPDUMP_DIR ZFCPDUMP_IMAGE ZFCPDUMP_INITRD ZFCPDUMP_FLAVOR
 
 CFLAGS		 ?= $(DEFAULT_CFLAGS) $(OPT_FLAGS)
-CFLAGS_FOR_BUILD ?= $(DEFAULT_CFLAGS) $(OPT_FLAGS)
+CFLAGS_FOR_BUILD ?= -std=gnu11 $(DEFAULT_CFLAGS) $(OPT_FLAGS)
 CPPFLAGS	 ?= $(DEFAULT_CPPFLAGS)
 LDFLAGS		 ?= $(DEFAULT_LDFLAGS)
 
@@ -303,14 +313,14 @@ ALL_CFLAGS	= -DS390_TOOLS_RELEASE=$(S390_TOOLS_RELEASE) \
 			-DS390_TOOLS_DATADIR=$(TOOLS_DATADIR) \
 			-DS390_TOOLS_SYSCONFDIR=$(SYSCONFDIR) \
 			-DS390_TOOLS_BINDIR=$(BINDIR) \
-			$(CFLAGS)
+			-std=gnu11 $(CFLAGS)
 CXXFLAGS	?= $(DEFAULT_CFLAGS) $(OPT_FLAGS)
 ALL_CXXFLAGS	= -DS390_TOOLS_RELEASE=$(S390_TOOLS_RELEASE) \
 			-DS390_TOOLS_LIBDIR=$(TOOLS_LIBDIR) \
 			-DS390_TOOLS_DATADIR=$(TOOLS_DATADIR) \
 			-DS390_TOOLS_SYSCONFDIR=$(SYSCONFDIR) \
 			-DS390_TOOLS_BINDIR=$(BINDIR) \
-			$(CXXFLAGS)
+			-std=gnu++11 $(CXXFLAGS)
 ALL_CPPFLAGS	= -I $(rootdir)include $(CPPFLAGS)
 ALL_LDFLAGS	= $(LDFLAGS)
 
@@ -360,6 +370,7 @@ help:
 	@echo '  all      Build all tools (default target)'
 	@echo '  install  Install tools'
 	@echo '  clean    Delete all generated files'
+	@echo '  compdb   Generate compile_commands.json for clangd'
 	@echo ''
 	@echo 'OPTIONS'
 	@echo '  D=1      	 Build with debugging option "-Og"'
@@ -375,6 +386,32 @@ help:
 	@echo '  # make C=1 CHECK=smatch'
 .PHONY: help
 
+
+# 'compile_commands.json' generation
+#
+# Create the compilation database 'compile_commands.json'. See
+# https://clang.llvm.org/docs/JSONCompilationDatabase.html for details.
+#
+.PHONY: compdb
+compdb:
+	$(MAKE) clean
+ifneq ($(shell command -v compiledb),)
+	compiledb $(MAKE)
+else ifneq ($(shell command -v bear),)
+  ifeq ($(shell bear --help|grep -- '-- ...'),)
+	bear $(MAKE)
+  else
+	bear -- $(MAKE)
+  endif
+else
+	$(error Please install either 'compiledb' or 'bear')
+endif
+
+# Prints the s390-tools release string
+version:
+	$(info $(S390_TOOLS_RELEASE))
+.PHONY: version
+
 # Automatic dependency generation
 #
 # Create ".o.d" dependency files with the -MM compile option for all ".c" and
@@ -485,7 +522,7 @@ install_echo:
 install: install_echo install_dirs
 
 clean_echo:
-	$(call echocmd,"  CLEAN   ")
+	$(call echocmd,"  CLEAN       ")
 clean_gcov:
 	rm -f -- *.gcda *.gcno *.gcov
 clean_dep:

cpacfstats/cpacfstats.1

@@ -355,13 +355,13 @@ PCKMO DES,
 .IP \(bu
 PCKMO 2key TDES,
 .IP \(bu
-PCMKO TDES,
+PCKMO TDES,
 .IP \(bu
 PCKMO AES 128bit,
 .IP \(bu
 PCKMO AES 192bit,
 .IP \(bu
-PCMKO AES 256bit,
+PCKMO AES 256bit,
 .IP \(bu
 PCKMO ECC P256,
 .IP \(bu

cpacfstats/cpacfstats.c

@@ -204,10 +204,10 @@ static const char *const pai_str[] = {
 	[142] = "KDSA EdDSA Sign Ed448 protected key",
 	[143] = "PCKMO DES",
 	[144] = "PCKMO 2key TDES",
-	[145] = "PCMKO TDES",
+	[145] = "PCKMO TDES",
 	[146] = "PCKMO AES 128bit",
 	[147] = "PCKMO AES 192bit",
-	[148] = "PCMKO AES 256bit",
+	[148] = "PCKMO AES 256bit",
 	[149] = "PCKMO ECC P256",
 	[150] = "PCKMO ECC P384",
 	[151] = "PCKMO ECC P521",
@@ -323,7 +323,7 @@ static void json_print_virtual_counter_answer(int s, int ctr,
 				pai_str[paictr], space, paictr + 1);
 			if (paistate < 0) {
 				printf("\"error\":%d}", paistate);
-				/* Protocol does not send furter counters. */
+				/* Protocol does not send further counters. */
 				return;
 			}
 			printf("\"value\":%"PRIu64"}", paivalue);
@@ -420,7 +420,7 @@ static void json_print_answer(int s, int ctr, int state, uint64_t value)
 		printf("\"value\":%"PRIu64"}", value);
 	}
 }
-		
+
 
 int eprint(const char *format, ...)
 {

cpacfstats/cpacfstatsd.8

@@ -45,9 +45,8 @@ counter set authorization control" checkbox.
 - The daemon requires root privileges to interact with the performance
 ioctls of the kernel.
 
-CPU hotplug is not recognized by the daemon. When adding or removing a CPU,
-restart the daemon to ensure correct summing of the per-CPU performance
-counters.
+CPU hotplug is recognized by the daemon. When adding or removing a CPU,
+the daemon ensures correct summing of the per-CPU performance counters.
 
 The starting daemon first checks for any stale pid file
 \%/run/cpacfstatsd.pid. If this file exists, and the process ID in the

cpacfstats/cpacfstatsd.c

@@ -97,7 +97,7 @@ static int do_send_pai(int s, int user)
 {
 	int ctr, state, i, maxctr, rc = 0;
 	uint64_t value;
-	
+
 	if (user) {
 		ctr = PAI_USER;
 		maxctr = NUM_PAI_USER;
@@ -252,20 +252,26 @@ static int do_print(int s, enum ctr_e ctr)
 }
 
 
-static int become_daemon(void)
+static int become_daemon(int *startup_pipe)
 {
+	int child_initialized = 0, fd;
+	int pipefds[2];
 	FILE *f;
-	int fd;
 
 	/* syslog */
 	openlog("cpacfstatsd", 0, LOG_DAEMON);
 
+	if (pipe(pipefds) != 0) {
+		eprint("pipe() failed, errno=%d [%s]\n", errno, strerror(errno));
+		return -1;
+	}
+
 	/*
 	 * fork and terminate parent
 	 * Reasons:
 	 * - opens new command line prompt
 	 * - the child process is guaranteed not to be the process group leader
-	 *   nessecarry for setsid.
+	 *   necessary for setsid.
 	 */
 
 	switch (fork()) {
@@ -276,9 +282,23 @@ static int become_daemon(void)
 	case 0:   /* child */
 		break;
 	default:  /* parent */
+		(void)close(pipefds[1]);
+		if (read(pipefds[0], &child_initialized, sizeof(child_initialized)) !=
+		    sizeof(child_initialized)) {
+			eprint("Couldn't read from PIPE, errno=%d [%s]\n", errno, strerror(errno));
+			(void)close(pipefds[0]);
+			_exit(EXIT_FAILURE);
+		}
+		(void)close(pipefds[0]);
+		if (!child_initialized)
+			_exit(EXIT_FAILURE);
 		_exit(0);
 	}
 
+	/* Executed within the child context only */
+	(void)close(pipefds[0]);
+	*startup_pipe = pipefds[1];
+
 	if (chdir("/") != 0) {
 		eprint("Chdir('/') failed, errno=%d [%s]\n",
 		       errno, strerror(errno));
@@ -418,7 +438,7 @@ int eprint(const char *format, ...)
 
 int main(int argc, char *argv[])
 {
-	int rc, sfd, foreground = 0;
+	int rc, sfd, foreground = 0, startup_pipe = -1, initialized = 0;
 	struct sigaction act;
 
 	if (argc > 1) {
@@ -454,27 +474,27 @@ int main(int argc, char *argv[])
 	}
 
 	if (check_pidfile() != 0) {
-		eprint("Stalled pid file or daemon allready running, terminating\n");
+		eprint("Stalled pid file or daemon already running, terminating\n");
 		return EXIT_FAILURE;
 	}
 
 	if (!foreground) {
-		if (become_daemon() != 0) {
+		if (become_daemon(&startup_pipe) != 0) {
 			eprint("Couldn't daemonize\n");
-			return EXIT_FAILURE;
+			goto error;
 		}
 	}
 
 	if (perf_init() != 0) {
 		eprint("Couldn't initialize perf lib\n");
-		return EXIT_FAILURE;
+		goto error;
 	}
 	atexit(perf_close);
 
 	sfd = open_socket(SERVER);
 	if (sfd < 0) {
 		eprint("Couldn't initialize server socket\n");
-		return EXIT_FAILURE;
+		goto error;
 	}
 	atexit(remove_sock);
 
@@ -484,17 +504,27 @@ int main(int argc, char *argv[])
 	if (sigaction(SIGINT, &act, 0) != 0) {
 		eprint("Couldn't establish signal handler for SIGINT, errno=%d [%s]\n",
 		       errno, strerror(errno));
-		return EXIT_FAILURE;
+		goto error;
 	}
 	if (sigaction(SIGTERM, &act, 0) != 0) {
 		eprint("Couldn't establish signal handler for SIGTERM, errno=%d [%s]\n",
 		       errno, strerror(errno));
-		return EXIT_FAILURE;
+		goto error;
 	}
 	/* Ignore SIGPIPE such that we see EPIPE as return from write. */
 	signal(SIGPIPE, SIG_IGN);
 
 	eprint("Running\n");
+	initialized = 1;
+	/* `startup_pipe` has been initialized, so we know we are
+	 * running in daemon mode. Let's write to the pipe so that the
+	 * parent knows that the initialization is complete.
+	 */
+	if (startup_pipe != -1 &&
+	    write(startup_pipe, &initialized, sizeof(initialized)) != sizeof(initialized))
+		goto error;
+	(void)close(startup_pipe);
+	startup_pipe = -1;
 
 	while (!stopsig) {
 		enum ctr_e ctr;
@@ -507,13 +537,14 @@ int main(int argc, char *argv[])
 				continue;
 			eprint("Accept() failure, errno=%d [%s]\n",
 			       errno, strerror(errno));
-			return EXIT_FAILURE;
+			goto error;
 		}
 
 		rc = recv_query(s, &ctr, &cmd);
 		if (rc != 0) {
 			eprint("Recv_query() failed, ignoring\n");
-			goto cleanup;
+			close(s);
+			continue;
 		}
 
 		if (cmd == ENABLE)
@@ -527,11 +558,9 @@ int main(int argc, char *argv[])
 		else {
 			eprint("Received unknown command %d, ignoring\n",
 			       (int) cmd);
-			goto cleanup;
+			close(s);
+			continue;
 		}
-
-cleanup:
-		close(s);
 	}
 
 	if (stopsig == SIGTERM)
@@ -543,4 +572,14 @@ cleanup:
 	remove_pidfile();
 
 	return 0;
+
+error:
+	if (startup_pipe != -1) {
+		/* Notify the parent process that there was an error */
+		if (write(startup_pipe, &initialized, sizeof(initialized)) != sizeof(initialized))
+			eprint("Couldn't write to PIPE, errno=%d [%s]\n", errno, strerror(errno));
+		(void)close(startup_pipe);
+	}
+
+	return EXIT_FAILURE;
 }

cpacfstats/perf_crypto.c

@@ -371,7 +371,7 @@ static int addallcpus(void)
 			errno, strerror(errno));
 		return -1;
 	}
-		
+
 	while (!feof(fp)) {
 		/* scan all intervals of online cpus */
 		scanned = fscanf(fp, "%u-%u", &start, &end);
@@ -414,7 +414,7 @@ static void *hotplughandler(void *UNUSED(unused))
 	struct udev *hotplug;
 	struct udev_monitor *monitor;
 	struct pollfd item;
-	
+
 	hotplug = udev_new();
 	if (!hotplug) {
 		eprint("Failed to create hotplug device\n");
@@ -496,10 +496,8 @@ int perf_init(void)
 		num -= 2;
 	}
 
-	if (num == 0) {
+	if (num == 0)
 		eprint("No crypto counters supported!\n");
-		return -1;
-	}
 
 	if (perf_load_counter_data())
 		return -1;

cpumf/Makefile

@@ -1,7 +1,7 @@
 include ../common.mak
 
-BIN_FILES = lscpumf chcpumf lshwc pai
-MAN_FILES = lscpumf.8 chcpumf.8 lshwc.8 pai.8
+BIN_FILES = lscpumf chcpumf lshwc pai lspai
+MAN_FILES = lscpumf.8 chcpumf.8 lshwc.8 pai.8 lspai.8
 
 all: $(BIN_FILES)
 
@@ -11,6 +11,7 @@ lscpumf: lscpumf.o $(libs)
 chcpumf: chcpumf.o $(libs)
 lshwc: lshwc.o $(libs)
 pai: pai.o $(libs)
+lspai: lspai.o $(libs)
 
 install: all install-man
 	$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man8

cpumf/lshwc.c

@@ -276,9 +276,7 @@ static bool check_setpossible(void)
 	if (!get_cpus(CPUS_KERNELMAX, cpubuf, sizeof(cpubuf)))
 		return false;
 	max_possible_cpus = getnumber(cpubuf, '\0') + 1;
-	check = calloc(max_possible_cpus, sizeof(*check));
-	if (!check)
-		err(EXIT_FAILURE, "Maximum CPUs %u", max_possible_cpus);
+	check = util_zalloc(max_possible_cpus * sizeof(*check));
 	if (!get_cpus(CPUS_POSSIBLE, cpubuf, sizeof(cpubuf))) {
 		free(check);
 		return false;
@@ -533,13 +531,8 @@ static int do_read(int ioctlfd)
 	struct s390_hwctr_read *read;
 	int rc;
 
-	if (!ioctlbuffer) {
-		ioctlbuffer = malloc(ioctlbuffer_len);
-		if (!ioctlbuffer) {
-			warn("ioctl S390_HWCTR_START");
-			return -ENOMEM;
-		}
-	}
+	if (!ioctlbuffer)
+		ioctlbuffer = util_malloc(ioctlbuffer_len);
 	read = (struct s390_hwctr_read *)ioctlbuffer;
 	rc = ioctl(ioctlfd, S390_HWCTR_READ, read);
 	if (!rc)

cpumf/lspai.c

@@ -0,0 +1,352 @@
+/* Copyright IBM Corp. 2023
+ *
+ * s390-tools is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+/* List available Processor Assist Instrumentation (PAI) counters.  */
+
+#include <ctype.h>
+#include <dirent.h>
+#include <err.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "lib/util_opt.h"
+#include "lib/util_prg.h"
+#include "lib/util_base.h"
+#include "lib/util_path.h"
+#include "lib/util_scandir.h"
+#include "lib/util_libc.h"
+#include "lib/util_file.h"
+#include "lib/util_list.h"
+#include "lib/libcpumf.h"
+
+static struct util_opt opt_vec[] = {
+	UTIL_OPT_SECTION("OPTIONS"),
+	{
+		.option = { "numeric", no_argument, NULL, 'n' },
+		.desc = "Sort PAI counters by counter number"
+	},
+	{
+		.option = { "type", required_argument, NULL, 't' },
+		.argument = "TYPE",
+		.desc = "Type of PAI counters to show: crypto, nnpa"
+	},
+	UTIL_OPT_HELP,
+	UTIL_OPT_VERSION,
+	UTIL_OPT_END
+};
+
+static const struct util_prg prg = {
+	.desc = "List Processor Assist Information counter sets",
+	.copyright_vec = {
+		{
+			.owner = "IBM Corp.",
+			.pub_first = 2023,
+			.pub_last = 2023,
+		},
+		UTIL_PRG_COPYRIGHT_END
+	}
+};
+
+static bool numsort;		/* If true sort counter numerically */
+
+#define PAI_PATH	"/bus/event_source/devices/%s"
+
+enum pai_types {		/* Bit mask for supported PAI counters */
+	pai_type_crypto = 0,	/* PAI Crypto Counters */
+	pai_type_nnpa = 1,	/* PAI NNPA Counters */
+	pai_type_max = 2,	/* PAI maximum value, must be last */
+};
+
+static int pai_types_show;
+
+struct pai_ctrname {		/* List of defined counters */
+	char *name;		/* Counter name */
+	unsigned long nr;	/* Counter number */
+};
+
+struct pai_node {		/* Head for PAI counter sets */
+	struct util_list_node node;	/* Successor in PAI counter set list */
+	enum pai_types type;	/* PAI type */
+	int pmu;		/* Assigned PMU type number */
+	const char *name;	/* Counter set name */
+	char *name_uc;		/* Counter set name upper case */
+	const char *sysfs_name;	/* Counter set name in /sysfs tree */
+	const char *filter_name;	/* Counter set name for scandir filter */
+	struct pai_ctrname *ctrlist;	/* List of counter names & numbers */
+	size_t ctrsize;		/* Total size in bytes of ctrlist */
+	int ctridx;		/* Index of last entry used in ctrlist */
+	unsigned long base;	/* Base number for counter set */
+};
+
+static struct util_list pai_list;
+
+/* Return base of counter set, this is the first counter of this set. */
+static unsigned long pai_type_base(enum pai_types t)
+{
+	switch (t) {
+	case pai_type_crypto:
+		return 0x1000;
+	case pai_type_nnpa:
+		return 0x1800;
+	case pai_type_max:
+		break;
+	}
+	return 0;
+}
+
+/* Test PAI counter name from command line option. */
+static const char *pai_type_name(enum pai_types t)
+{
+	switch (t) {
+	case pai_type_crypto:
+		return "crypto";
+	case pai_type_nnpa:
+		return "nnpa";
+	case pai_type_max:
+		break;
+	}
+	return "unknown";
+}
+
+/* Convert PAI counter type to sysfs directory name. Only validated
+ * input at this time.
+ */
+static const char *pai_type_sysfs(enum pai_types t)
+{
+	if (t == pai_type_crypto)
+		return "pai_crypto";
+	return "pai_ext";
+}
+
+/* Convert PAI counter type to sysfs directory name filter for scandir(). */
+static const char *pai_type_filter(enum pai_types t)
+{
+	if (t == pai_type_nnpa)
+		return "^NNPA";
+	return "[^.]";		/* Matches anything but . and .. in sysfs */
+}
+
+/* Sort PAI counter names by assigned counter number. */
+static int pai_ctrcmp(const void *p1, const void *p2)
+{
+	struct pai_ctrname *l = (struct pai_ctrname *)p1;
+	struct pai_ctrname *r = (struct pai_ctrname *)p2;
+
+	return l->nr > r->nr ? 1 : -1;
+}
+
+/* Convert string to upper case. */
+static char *str2uc(const char *s)
+{
+	char *uc = util_strdup(s), *old_uc = uc;
+
+	for (; *uc; ++uc)
+		*uc = toupper(*uc);
+	return old_uc;
+}
+
+/* Read counter names and assigned event number from sysfs file tree.
+ * Exit when sysfs directory can not be scanned.
+ */
+static void read_counternames(struct pai_node *node)
+{
+	int i, more = 0, ctr = 0, count = 0;
+	struct dirent **namelist = NULL;
+	char *path, *ctrpath;
+
+	/* Read counter names and assigned event number. */
+	path = util_path_sysfs(PAI_PATH "/events", node->sysfs_name);
+	count = util_scandir(&namelist, alphasort, path, node->filter_name);
+	if (count <= 0)
+		errx(EXIT_FAILURE, "Cannot open %s", path);
+
+	node->ctrsize = count * sizeof(*node->ctrlist);
+	node->ctrlist = util_malloc(node->ctrsize);
+	for (i = 0; i < count && ctr >= 0; i++) {
+		util_asprintf(&ctrpath, "%s/%s", path, namelist[i]->d_name);
+		if (util_file_read_va(ctrpath, "event=%x", &ctr) == 1) {
+			node->ctrlist[node->ctridx].name = util_strdup(namelist[i]->d_name);
+			node->ctrlist[node->ctridx++].nr = ctr;
+			more++;
+		} else {
+			warnx("Cannot parse %s", ctrpath);
+		}
+		free(ctrpath);
+	}
+	util_scandir_free(namelist, count);
+	free(path);
+
+	if (numsort && more > 1)
+		qsort(node->ctrlist, more, sizeof(*node->ctrlist), pai_ctrcmp);
+}
+
+static void show_painode(void)
+{
+	struct pai_node *node;
+	int indent = 0;
+	int offset = 0;
+
+	util_list_iterate(&pai_list, node) {
+		for (int i = 0; i < node->ctridx; ++i)
+			indent = MAX((size_t)indent, strlen(node->ctrlist[i].name));
+	}
+
+	printf("RAW %*s NAME %*s DESCRIPTION\n", 3, "", indent - 5, "");
+	util_list_iterate(&pai_list, node) {
+		for (int i = 0; i < node->ctridx; ++i) {
+			printf("%d:%ld %s", node->pmu,
+			       node->ctrlist[i].nr, node->ctrlist[i].name);
+
+			offset = indent - strlen(node->ctrlist[i].name) + 1;
+			printf("%*s", offset, "");
+
+			printf("Counter %ld / PAI %s counter set\n",
+			       node->ctrlist[i].nr - node->base, node->name_uc);
+		}
+	}
+}
+
+/* Release all memory allocated at make_painode(). */
+static void free_painode(void)
+{
+	struct pai_node *next, *node;
+
+	util_list_iterate_safe(&pai_list, node, next) {
+		free(node->name_uc);
+		for (int i = 0; i < node->ctridx; ++i)
+			free(node->ctrlist[i].name);
+		free(node->ctrlist);
+		free(node);
+	}
+}
+
+static void make_painode(enum pai_types t)
+{
+	struct pai_node *node = util_zalloc(sizeof(*node));
+	char *path;
+
+	node->type = t;
+	node->sysfs_name = pai_type_sysfs(t);
+	node->name = pai_type_name(t);
+	node->name_uc = str2uc(node->name);
+	node->filter_name = pai_type_filter(t);
+	node->base = pai_type_base(t);
+
+	/* Read PMU type number. */
+	path = util_path_sysfs(PAI_PATH, node->sysfs_name);
+	node->pmu = libcpumf_pmutype(path);
+	if (node->pmu < 0)
+		errx(EXIT_FAILURE, "Cannot open %s", path);
+	free(path);
+
+	read_counternames(node);
+
+	util_list_add_tail(&pai_list, node);
+}
+
+static int painode_cmp(void *a, void *b, void *UNUSED(data))
+{
+	struct pai_node *n1 = (struct pai_node *)a;
+	struct pai_node *n2 = (struct pai_node *)b;
+
+	return n1->pmu < n2->pmu ? -1 : 1;
+}
+
+static void sort_painode(void)
+{
+	util_list_sort(&pai_list, painode_cmp, NULL);
+}
+
+/* Check for hardware support and return false if not available. */
+static bool have_support(enum pai_types t)
+{
+	const char *sysfn = pai_type_sysfs(t);
+	char *path = util_path_sysfs(PAI_PATH, sysfn);
+	bool rc = true;
+
+	if (!util_path_is_dir(path)) {
+		warnx("No support for PAI %s facility", pai_type_name(t));
+		rc = false;
+	}
+	free(path);
+	return rc;
+}
+
+/*
+ * Check the argument for option -t. It must be a valid PAI counter set.
+ * Exit when an invalid PAI counter set name has been specified.
+ */
+static void check_type_name(const char *type)
+{
+	bool no_match = true;
+	enum pai_types i;
+	const char *fn;
+
+	for (i = pai_type_crypto; i < pai_type_max; ++i) {
+		fn = pai_type_name(i);
+		if (!strcasecmp(fn, type)) {
+			pai_types_show |= (1 << i);
+			no_match = false;
+		}
+	}
+	if (no_match)
+		errx(EXIT_FAILURE, "Invalid argument for -t %s", type);
+}
+
+int main(int argc, char **argv)
+{
+	int ch;
+
+	util_list_init(&pai_list, struct pai_node, node);
+	util_prg_init(&prg);
+	util_opt_init(opt_vec, NULL);
+
+	while ((ch = util_opt_getopt_long(argc, argv)) != -1) {
+		switch (ch) {
+		default:
+			util_opt_print_parse_error(ch, argv);
+			return EXIT_FAILURE;
+		case 'h':
+			util_prg_print_help();
+			util_opt_print_help();
+			return EXIT_SUCCESS;
+		case 'v':
+			util_prg_print_version();
+			return EXIT_SUCCESS;
+		case 'n':
+			numsort = true;
+			break;
+		case 't':
+			check_type_name(optarg);
+			break;
+		}
+	}
+
+	/* Nothing specified, show all PAI counters */
+	if (!pai_types_show)
+		pai_types_show = (1 << pai_type_crypto) | (1 << pai_type_nnpa);
+
+	/* Check for hardware support */
+	for (enum pai_types i = pai_type_crypto; i < pai_type_max; ++i) {
+		if ((pai_types_show & (1 << i))) {
+			if (!have_support(i))
+				pai_types_show &= ~(1 << i);
+			else
+				make_painode(i);
+		}
+	}
+	sort_painode();
+	show_painode();
+	free_painode();
+	return ch;
+}

cpumf/man/lspai.8

@@ -0,0 +1,80 @@
+.\" lspai.8
+.\"
+.\"
+.\" Copyright IBM Corp. 2021
+.\" s390-tools is free software; you can redistribute it and/or modify
+.\" it under the terms of the MIT license. See LICENSE for details.
+.\" ----------------------------------------------------------------------
+.ds c \fBlspai\fP
+.
+.TH \*c "8" "August 2023" "s390-tools" "CPU-MF management programs"
+.
+.SH NAME
+\*c \- list Processor Activity Instrumentation (PAI) counters
+.
+.SH SYNOPSIS
+\*c
+.RB [ \-n ]
+.RB [ \-t
+.IR "\ TYPE" ]
+.br
+\*c
+.BR \-h | \-\-help
+.br
+\*c
+.BR \-v | \-\-version
+.
+.
+.SH DESCRIPTION
+\*c displays the Processor Activity Instrumentation (PAI) counters
+for Linux on IBM Z.
+The output is a human-readable list of available PAI counter
+names and numbers.
+.SH OPTIONS
+.TP
+.BR \-h ", " \-\-help
+Displays help information, then exits.
+.
+.TP
+.BR \-v ", " \-\-version
+Displays version information, then exits.
+.
+.TP
+.BR \-t ", " \-\-type "\ TYPE"
+Specifies the PAI counter set to list.
+Valid counter set values are
+.I crypto
+and
+.IR nnpa .
+By default, the command lists all available PAI counter sets.
+NNPA refers to the Neural Network Processing Assist facility counter set.
+Crypto refers to the Cryptografic Processing Assist facility counter set.
+.
+.TP
+.BR \-n ", " \-\-numeric
+Shows the PAI counter sets sorted by counter number.
+Default sort order is PAI counter name.
+.
+.SH "EXAMPLE"
+The \*c invocation lists all PAI Neural Network Processing Assist Facility
+(NNPA) counters in numeric order:
+.nf
+# lspai -t nnpa -n
+RAW     NAME			DESCRIPTION
+13:6144 NNPA_ALL		Counter 0 / PAI NNPA counter set
+13:6145 NNPA_ADD		Counter 1 / PAI NNPA counter set
+13:6146 NNPA_SUB		Counter 2 / PAI NNPA counter set
+13:6147 NNPA_MUL		Counter 3 / PAI NNPA counter set
+\&...
+.fi
+The first column shows the raw event number suitable for
+.IR perf "(8)"
+raw event specification.
+The second column shows the PAI NNPA counter name,
+suitable for
+.IR perf "(8)"
+event specification by name.
+The third gives a short explanation, if available.
+.SH "SEE ALSO"
+.BR pai (8)
+.BR lscpumf (8)

cpumf/man/pai.8

@@ -18,6 +18,8 @@
 .IR size ]
 .RB [ \-i | \-\-interval
 .IR ms ]
+.RB [ \-R | \-\-realtime
+.IR prio ]
 .BR  \-c | \-\-crypto [ \fIcpulist ][: \fIdata\fR "] [" \fIloops\fP ]
 .br
 \*c
@@ -25,6 +27,8 @@
 .IR size ]
 .RB [ \-i | \-\-interval
 .IR ms ]
+.RB [ \-R | \-\-realtime
+.IR prio ]
 .BR  \-n | \-\-nnpa [ \fIcpulist ][: \fIdata\fR "] [" \fIloops\fP ]
 .br
 \*c
@@ -191,6 +195,14 @@ The ring buffer is created with the
 .IR mmap (2)
 system call.
 .
+.TP
+.BR \-R ", " \-\-realtime "\ prio"
+Collect data using the RT SCHED_FIFO priority specified by
+.BR prio .
+Valid values are integers in the range 1 (low) to 99 (high).
+Use this option when gathering data from multiple CPUs
+to prevent data loss.
+.
 .SH ARGUMENT
 The command line options determine how command line
 arguments are interpreted.

cpumf/pai.c

@@ -320,7 +320,7 @@ static void readmap(int fd)
  * ring buffer per event, sleep some short time and always read all
  * ring buffer for new contents.
  */
-static void collect(unsigned long cnt)
+static int collect(unsigned long cnt)
 {
 	fd_set r_fds, e_fds, a_fds;
 	struct pai_event *p;
@@ -328,6 +328,7 @@ static void collect(unsigned long cnt)
 	int rc, max_fd;
 
 	do {
+		rc = -1;
 		max_fd = -1;
 		tv.tv_sec = read_interval / 1000;
 		tv.tv_usec = (1000 * read_interval) % 1000000;
@@ -357,6 +358,7 @@ static void collect(unsigned long cnt)
 			}
 		}
 	} while (rc != -1 && --cnt > 0);
+	return rc;
 }
 
 static void lookup_event(__u64 evtnum, __u16 ctr, __u64 value)
@@ -449,6 +451,11 @@ static void evt_show(__u64 evtnum, const char *evtsel, struct pai_event_out *ev)
 		       ev->u.s_comm.tid);
 		break;
 
+	case PERF_RECORD_SWITCH:
+		printf("cs-%s",
+		       (ev->misc & PERF_RECORD_MISC_SWITCH_OUT) ? "out" : "in");
+		break;
+
 	case PERF_RECORD_SWITCH_CPU_WIDE:
 		if (ev->misc & PERF_RECORD_MISC_SWITCH_OUT) {
 			short p = PERF_RECORD_MISC_SWITCH_OUT_PREEMPT;
@@ -549,6 +556,9 @@ static int evt_scan(char *fn, unsigned char *buf, size_t len,
 				offset -= sizeof(__u64);
 			break;
 
+		case PERF_RECORD_SWITCH:
+			break;
+
 		case PERF_RECORD_SWITCH_CPU_WIDE:
 			memcpy(&ev.u, buf + offset, sizeof(ev.u.s_cs));
 			offset += sizeof(ev.u.s_cs);
@@ -583,7 +593,7 @@ static int evt_scan(char *fn, unsigned char *buf, size_t len,
 			break;
 
 		default:
-			printf("unknown header-type %d ", hdr->type);
+			printf("unknown header-type %d\n", hdr->type);
 			offset += hdr->size - sizeof(*hdr);
 			goto bypass;
 		}
@@ -944,6 +954,11 @@ static struct util_opt opt_vec[] = {
 		.option = { "report", no_argument, NULL, 'r' },
 		.desc = "Report file contents"
 	},
+	{
+		.option = { "realtime", required_argument, NULL, 'R' },
+		.argument = "PRIO",
+		.desc = "Collect data with this RT SCHED_FIFO priority"
+	},
 	{
 		.option = { "interval", required_argument, NULL, 'i' },
 		.argument = "NUMBER",
@@ -1007,6 +1022,19 @@ static unsigned long check_mapsize(unsigned long n)
 	return cnt == 1 ? n : 0;
 }
 
+static void setprio(const char *prio)
+{
+	struct sched_param param;
+	char *endstr;
+
+	memset(&param, 0, sizeof(param));
+	param.sched_priority = strtoul(prio, &endstr, 0);
+	if (*endstr)
+		errno = EINVAL;
+	if (*endstr || sched_setscheduler(0, SCHED_FIFO, &param))
+		err(EXIT_FAILURE, "Could not set realtime priority");
+}
+
 int main(int argc, char **argv)
 {
 	bool crypto_record = false, report = false;
@@ -1061,6 +1089,9 @@ int main(int argc, char **argv)
 			record_cpus_nnpa(optarg);
 			nnpa_record = true;
 			break;
+		case 'R':
+			setprio(optarg);
+			break;
 		case 'r':
 			report = true;
 			break;
@@ -1094,12 +1125,12 @@ int main(int argc, char **argv)
 		ev_install(group);
 		ev_enable();
 
-		collect(loop_count);
+		ch = collect(loop_count);
 
 		ev_disable();
 		ev_deinstall();
 		ev_dealloc();
-		return EXIT_SUCCESS;
+		return ch < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 	}
 
 	/* Must be reporting */

cpuplugd/cpu.c

@@ -25,7 +25,7 @@ int get_numcpus()
 
 	for (i = 0; ; i++) {
 		/* check whether file exists and is readable */
-		sprintf(path, "/sys/devices/system/cpu/cpu%d/online", i);
+		sprintf(path, "/sys/devices/system/cpu/cpu%d", i);
 		if (access(path, R_OK) == 0)
 			number++;
 		else
@@ -45,11 +45,13 @@ int get_num_online_cpus()
 	int status = 0;
 	int value_of_onlinefile, rc;
 
-	for (i = 0; i <= get_numcpus(); i++) {
+	for (i = 0; i < get_numcpus(); i++) {
 		/* check wether file exists and is readable */
 		sprintf(path, "/sys/devices/system/cpu/cpu%d/online", i);
-		if (access(path, R_OK) != 0)
+		if (access(path, R_OK) != 0) {
+			status++;
 			continue;
+		}
 		filp = fopen(path, "r");
 		if (!filp)
 			cpuplugd_exit("Cannot open cpu online file: "
@@ -101,10 +103,8 @@ int hotplug(int cpuid)
 				      cpuid);
 			return -1;
 		}
-	} else {
-		cpuplugd_error("hotplugging cpu with id %d failed\n", cpuid);
-		return -1;
 	}
+	cpuplugd_debug("cpu with id %d cannot be hotplugged\n", cpuid);
 	return -1;
 }
 
@@ -135,9 +135,8 @@ int hotunplug(int cpuid)
 		fclose(filp);
 		if (state == 0)
 			return 1;
-	} else {
-		cpuplugd_error("unplugging cpu with id %d failed\n", cpuid);
 	}
+	cpuplugd_debug("cpu with id %d cannot be hotunplugged\n", cpuid);
 	return retval;
 }
 
@@ -163,6 +162,8 @@ int is_online(int cpuid)
 				retval = 0;
 		}
 		fclose(filp);
+	} else {
+		retval = 1;
 	}
 	return retval;
 }

dasdfmt/dasdfmt.8

@@ -15,13 +15,13 @@ dasdfmt \- formatting of DASD (ECKD) disk drives.
 
 .SH DESCRIPTION
 \fBdasdfmt\fR formats a DASD (ECKD) disk drive to prepare it
-for usage with Linux for S/390. 
+for usage with Linux for S/390.
 The \fIdevice\fR is the node of the device (e.g. '/dev/dasda').
-Any device node created by udev for kernel 2.6 can be used 
+Any device node created by udev for kernel 2.6 can be used
 (e.g. '/dev/dasd/0.0.b100/disc').
 .br
 
-\fBWARNING\fR: Careless usage of \fBdasdfmt\fR can result in 
+\fBWARNING\fR: Careless usage of \fBdasdfmt\fR can result in
 \fBLOSS OF DATA\fR.
 
 .SH OPTIONS
@@ -31,7 +31,7 @@ Print usage and exit.
 
 .TP
 \fB-t\fR or \fB--test\fR
-Disables any modification of the disk drive. 
+Disables any modification of the disk drive.
 .br
 \fBdasdfmt\fR just prints
 out, what it \fBwould\fR do.
@@ -41,7 +41,7 @@ out, what it \fBwould\fR do.
 Increases verbosity.
 
 .TP
-\fB-y\fR 
+\fB-y\fR
 Start formatting without further user-confirmation.
 
 .TP
@@ -59,7 +59,7 @@ Omit the writing of a disk label after formatting.
 .br
 This makes only sense for the 'ldl' disk layout.
 .br
-The '-L' option has to be specified after the '-d ldl' option. 
+The '-L' option has to be specified after the '-d ldl' option.
 .br
 
 e.g. dasdfmt -d ldl -L /dev/...
@@ -84,13 +84,13 @@ Formats the device with compatible disk layout or linux disk layout.
 \fIlayout\fR is either \fIcdl\fR for the compatible disk layout
 (default) or \fIldl\fR for the linux disk layout.
 .br
-Compatible disk layout means a special handling of the 
-first two tracks of the volume. This enables other S/390 or zSeries 
+Compatible disk layout means a special handling of the
+first two tracks of the volume. This enables other S/390 or zSeries
 operating systems to access this device (e.g. for backup purposes).
 
 .TP
 \fB-p\fR or \fB--progressbar\fR
-Print a progress bar while formatting. 
+Print a progress bar while formatting.
 Do not use this option if you are using a 3270 console,
 running in background or redirecting the output to a file.
 
@@ -164,30 +164,30 @@ and always be a power of two. The recommended blocksize is 4096 bytes.
 
 .TP
 \fB-l\fR \fIvolser\fR or \fB--label\fR=\fIvolser\fR
-Specify the volume serial number or volume identifier to be written 
-to disk after formatting. If no label is specified, a sensible default 
-is used. \fIvolser\fR is interpreted as ASCII string and is automatically 
+Specify the volume serial number or volume identifier to be written
+to disk after formatting. If no label is specified, a sensible default
+is used. \fIvolser\fR is interpreted as ASCII string and is automatically
 converted to uppercase and then to EBCDIC.
 .br
 
 e.g. -l LNX001 or --label=DASD01
 .br
 
-The \fIvolser\fR identifies by serial number the volume. A volume serial 
+The \fIvolser\fR identifies by serial number the volume. A volume serial
 number is 1 through 6 alphanumeric or one of the following special
-characters: $, #, @, %. Enclose a serial number that contains special 
-characters in apostrophes. If the number is shorter than six 
+characters: $, #, @, %. Enclose a serial number that contains special
+characters in apostrophes. If the number is shorter than six
 characters, it is padded with trailing blanks.
-.br 
+.br
 
-Do not code a volume serial number as SCRTCH, PRIVAT, or Lnnnnn (L with 
-five numbers); these are used in OS/390 messages to ask the operator to 
-mount a volume. Do not code a volume serial number as MIGRAT, which is 
-used by the OS/390 Hierarchical Storage Manager DFSMShsm for migrated 
+Do not code a volume serial number as SCRTCH, PRIVAT, or Lnnnnn (L with
+five numbers); these are used in OS/390 messages to ask the operator to
+mount a volume. Do not code a volume serial number as MIGRAT, which is
+used by the OS/390 Hierarchical Storage Manager DFSMShsm for migrated
 data sets.
 .br
 
-NOTE: Try to avoid using special characters in the volume serial. This may cause problems accessing a disk by volser. 
+NOTE: Try to avoid using special characters in the volume serial. This may cause problems accessing a disk by volser.
 .br
 In case you really have to use special characters, make sure you are using quotes. In addition there is a special handling for the '$' sign. Please specify it using '\\$' if necessary.
 .br
@@ -197,9 +197,8 @@ e.g. -l 'a@b\\$c#' to get A@B$C#
 
 .TP
 \fB-k\fR or \fB--keep_volser\fR
-Keeps the Volume Serial Number, when writing the Volume Label. This is
-useful, if the Serial Number has been written with a VM Tool and should not
-be overwritten.
+Keeps the Volume Serial Number when writing the Volume Label. This is useful if
+the volume already has a Serial Number that should not be overwritten.
 .br
 
 .SH SEE ALSO

dump2tar/src/Makefile

@@ -1,7 +1,7 @@
 # Common definitions
 include ../../common.mak
 
-ALL_CPPFLAGS += -I../include -std=gnu99 -Wno-unused-parameter
+ALL_CPPFLAGS += -I../include -Wno-unused-parameter
 LDLIBS  += -lpthread -lrt
 ifneq ($(HAVE_ZLIB),0)
 ALL_CPPFLAGS += -DHAVE_ZLIB

dump2tar/src/tar.c

@@ -23,9 +23,16 @@
 
 #define BLOCKSIZE	512
 
+#if __has_attribute(nonstring)
+#  define __nonstring	__attribute__ ((nonstring))
+#else
+#  define __nonstring
+#endif
+
+
 /* Basic TAR header */
 struct tar_header {
-	char name[100];
+	char name[100] __nonstring;
 	char mode[8];
 	char uid[8];
 	char gid[8];
@@ -33,7 +40,7 @@ struct tar_header {
 	char mtime[12];
 	char chksum[8];
 	char typeflag;
-	char linkname[100];
+	char linkname[100] __nonstring;
 	char magic[6];
 	char version[2];
 	char uname[32];
@@ -78,7 +85,7 @@ static void set_time(char *dest, size_t len, time_t value)
 #define SET_TIME_FIELD(obj, name, value) \
 	set_time((obj)->name, sizeof((obj)->name), (time_t) (value))
 #define SET_STR_FIELD(obj, name, value) \
-	util_strlcpy((obj)->name, (value), sizeof((obj)->name))
+	strncpy((obj)->name, (value), sizeof((obj)->name))
 
 /* Initialize the tar file @header with the provided data */
 static void init_header(struct tar_header *header, const char *filename,

fdasd/fdasd.8

@@ -19,10 +19,10 @@ help:
 .br
      \fBfdasd\fR {-h|-v}
 .SH DESCRIPTION
-\fBfdasd\fR writes a partition table to a cdl (compatible disk layout) 
+\fBfdasd\fR writes a partition table to a cdl (compatible disk layout)
 formatted DASD, in the form of
 a VTOC (volume table of contents) for usage with Linux for S/390
-or zSeries. If fdasd detects a valid \fBVOL1\fR volume label, it 
+or zSeries. If fdasd detects a valid \fBVOL1\fR volume label, it
 will use it, otherwise it asks to write a new one.
 .br
 
@@ -34,51 +34,51 @@ will use it, otherwise it asks to write a new one.
 Print usage information, then exit.
 
 .TP
-\fB-v\fR or \fB--version\fR 
+\fB-v\fR or \fB--version\fR
 Print version information, then exit.
 
 .TP
-\fB-s\fR or \fB--silent\fR  
+\fB-s\fR or \fB--silent\fR
 Suppress messages in non-interactive mode.
 
 .TP
-\fB-r\fR or \fB--verbose\fR  
+\fB-r\fR or \fB--verbose\fR
 Provide more verbose output.
 
 .TP
-\fB-a\fR or \fB--auto\fR  
-Automatically create a partition using the entire disk in non-interactive 
+\fB-a\fR or \fB--auto\fR
+Automatically create a partition using the entire disk in non-interactive
 mode.
 
 .TP
 \fB-k\fR or \fB--keep_volser\fR
-Keeps the volume serial when writing the volume label. 
+Keeps the Volume Serial Number when writing the Volume Label.
 .br
-This is useful, if the volume serial has been written before and should not
-be overwritten. This option is only applicable in non-interactive mode.
+This is useful if the volume already has a Serial Number that should not be
+overwritten. This option is only applicable in non-interactive mode.
 
 .TP
 \fB-l\fR \fIvolser\fR or \fB--label\fR \fIvolser\fR
 Specify the volume serial.
 .br
-\fIvolser\fR is interpreted as ASCII string and is automatically converted to 
+\fIvolser\fR is interpreted as ASCII string and is automatically converted to
 uppercase, padded with blanks and finally converted to EBCDIC to be written
 to disk. This option is only applicable in non-interactive mode.
 .br
 
-Do not use the following reserved volume serial: SCRTCH, PRIVAT, MIGRAT, 
-or Lnnnnn (L with five digit number); These are used as keywords by 
+Do not use the following reserved volume serial: SCRTCH, PRIVAT, MIGRAT,
+or Lnnnnn (L with five digit number); These are used as keywords by
 other operating systems (OS/390).
 .br
 
-A volume serial is 1 through 6 alphanumeric characters or one of the 
-following special characters: $, #, @, %. All other characters are simply 
-ignored. 
+A volume serial is 1 through 6 alphanumeric characters or one of the
+following special characters: $, #, @, %. All other characters are simply
+ignored.
 .br
-Try to avoid using special characters in the volume serial. 
-This may cause problems accessing a disk by volser. 
-In case you really have to use special characters, make sure you are using 
-quotes. In addition there is a special handling for the '$' sign. 
+Try to avoid using special characters in the volume serial.
+This may cause problems accessing a disk by volser.
+In case you really have to use special characters, make sure you are using
+quotes. In addition there is a special handling for the '$' sign.
 Please specify it using '\\$' if necessary.
 .br
 
@@ -124,14 +124,14 @@ partitions that use the entire disk:
 .br
 
 .TP
-\fB-i\fR or \fB--volser\fR 
+\fB-i\fR or \fB--volser\fR
 Print the volume serial, then exit.
 
 .TP
-\fB-p\fR or \fB--table\fR 
-Print partition table, then exit. 
+\fB-p\fR or \fB--table\fR
+Print partition table, then exit.
 .br
-In combination with the -s option fdasd will display a short version of the 
+In combination with the -s option fdasd will display a short version of the
 partition table.
 
 .TP
@@ -179,7 +179,7 @@ In case your are not using the device file system, please specify:
 .br
 
 where \fIx\fR is one or more lowercase letter(s) or any other device
-node specification configured by udev for kernel 2.6 or higher. 
+node specification configured by udev for kernel 2.6 or higher.
 
 .SH SEE ALSO
 .BR dasdfmt (8)

genprotimg/Makefile

@@ -10,10 +10,8 @@ RECURSIVE_TARGETS := all-recursive install-recursive clean-recursive
 
 all: all-recursive
 
-install: all install-recursive
+install: install-recursive
 	$(INSTALL) -d -m 755 "$(PKGDATADIR)"
-	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 boot/stage3a.bin "$(PKGDATADIR)"
-	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 boot/stage3b_reloc.bin "$(PKGDATADIR)"
 	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 755 samples/check_hostkeydoc "$(PKGDATADIR)"
 
 clean: clean-recursive

genprotimg/boot/Makefile

@@ -1,8 +1,13 @@
 # Common definitions
 include ../../common.mak
 
+FILES := stage3a.bin stage3b.bin stage3b_reloc.bin
+DEBUG_FILES := $(addsuffix .debug,$(FILES))
+
+ifeq ($(HOST_ARCH),s390x)
 ZIPL_DIR := $(rootdir)/zipl
 ZIPL_BOOT_DIR := $(ZIPL_DIR)/boot
+PKGDATADIR := $(DESTDIR)$(TOOLS_DATADIR)/genprotimg
 
 INCLUDE_PATHS := $(ZIPL_BOOT_DIR) $(ZIPL_DIR)/include $(rootdir)/include
 INCLUDE_PARMS := $(addprefix -I,$(INCLUDE_PATHS))
@@ -18,8 +23,6 @@ ALL_CFLAGS := $(NO_PIE_CFLAGS) -Os -g \
 	-Wall -Wformat-security -Wextra \
 	-Wno-array-bounds
 
-FILES := stage3a.bin stage3b.bin stage3b_reloc.bin
-
 ZIPL_SRCS_C := libc.c ebcdic.c ebcdic_conv.c sclp.c
 ZIPL_SRCS_ASM := entry.S
 
@@ -27,9 +30,6 @@ ZIPL_OBJS_C := $(ZIPL_SRCS_C:%.c=%.o)
 ZIPL_OBJS_ASM := $(ZIPL_SRCS_ASM:%.S=%.o)
 ZIPL_OBJS := $(ZIPL_OBJS_C) $(ZIPL_OBJS_ASM)
 
-
-all: $(FILES)
-
 # Prevent make from using some default rules...
 %:	%.S
 
@@ -72,15 +72,40 @@ stage3b_reloc.o: stage3b.bin
 stage3a.elf: head.o stage3a_init.o $(ZIPL_OBJS)
 stage3b.elf: head.o $(ZIPL_OBJS)
 
+.SECONDARY: $(FILES:.bin=.lds)
 %.elf: %.lds %.o
 	$(LINK) $(NO_PIE_LDFLAGS) $(NO_WARN_RWX_SEGMENTS_LDFLAGS) -Wl,-T,$< -Wl,--build-id=none -m64 -static -nostdlib $(filter %.o, $^) -o $@
 	@chmod a-x $@
 
+%.bin.debug: %.elf
+	$(OBJCOPY) --only-keep-debug $< $@
+	@chmod a-x $@
+
 %.bin: %.elf
 	$(OBJCOPY) -O binary $< $@
 	@chmod a-x $@
 
+install: stage3a.bin stage3b_reloc.bin
+	$(INSTALL) -d -m 755 "$(PKGDATADIR)"
+	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 stage3a.bin "$(PKGDATADIR)"
+	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 stage3b_reloc.bin "$(PKGDATADIR)"
+
+else
+# Don't generate the dependency files (see `common.mak` for the
+# `-include $(dependencies_c)` statement).
+.PHONY: $(dependencies_c)
+
+$(FILES) $(DEBUG_FILES):
+	echo "  SKIP    $@ due to HOST_ARCH != s390x"
+
+install:
+	echo "  SKIP    Bootloader installation due to HOST_ARCH != s390x"
+endif
+
+.DEFAULT_GOAL := all
+all: $(FILES) $(DEBUG_FILES)
+
 clean:
-	rm -f *.o *.elf *.bin *.map .*.d *.lds
+	rm -f -- *.o *.elf *.bin *.map .*.d *.lds *.debug
 
 .PHONY: all clean

genprotimg/boot/stage3a.c

@@ -11,10 +11,10 @@
 #include "stage3a.h"
 
 #include "lib/zt_common.h"
+#include "boot/error.h"
 #include "boot/s390.h"
 #include "boot/ipl.h"
 #include "sclp.h"
-#include "error.h"
 
 
 static volatile struct stage3a_args __section(".loader_parms") loader_parms;

genprotimg/boot/stage3b.c

@@ -11,11 +11,12 @@
 #include "stage3b.h"
 
 #include "lib/zt_common.h"
+#include "boot/psw.h"
+#include "boot/error.h"
 #include "boot/s390.h"
 #include "boot/linux_layout.h"
 #include "boot/loaders_layout.h"
 #include "sclp.h"
-#include "error.h"
 
 
 static volatile struct stage3b_args __section(".loader_parms") loader_parms;
@@ -60,13 +61,17 @@ void __noreturn start(void)
 	if (cmdline->size > get_kernel_cmdline_size())
 		panic(EINTERNAL, "Command line is too large\n");
 
-	/* move the kernel cmdline */
-	memmove((void *)COMMAND_LINE,
-		(void *)cmdline->src,
-		cmdline->size);
+	if (cmdline->size > 0) {
+		/* make sure the cmdline is a null-terminated string */
+		if (((char *)cmdline->src)[cmdline->size - 1] != '\0')
+			panic(EINTERNAL, "Command line needs to be null-terminated\n");
+
+		/* move the kernel cmdline */
+		memmove((void *)COMMAND_LINE, (void *)cmdline->src, cmdline->size);
+	}
 	/* the initrd does not need to be moved */
 
-	if (initrd->size != 0) {
+	if (initrd->size > 0) {
 		/* copy initrd start address and size into new kernel space */
 		*(unsigned long long *)INITRD_START = initrd->src;
 		*(unsigned long long *)INITRD_SIZE = initrd->size;

genprotimg/boot/stage3b.h

@@ -21,7 +21,7 @@
 
 #include <stdint.h>
 
-#include "boot/s390.h"
+#include "boot/psw.h"
 
 /* Must not have any padding included */
 struct memblob {

genprotimg/man/genprotimg.1

@@ -97,18 +97,29 @@ Do not use for a production image unless you verified
 the host-key document before. Optional.
 .TP
 \fB\-\-comm\-key\fR=\fI\,FILE\/\fR
-Specifies the encryption key you want to use for the PV guest dump. Use a
-secure, random, plaintext AES-256 GCM key. Optional.
+Specifies the customer communication key (CCK). This key is used for the
+PV guest dump encryption and to derive the CCK-derived extension secret
+used for add-secret requests. Use a secure, random, plaintext AES-256
+GCM key. Optional.
 .TP
 \fB\-\-enable\-dump\fR
-Enable PV guest dumps. Requires the \fB\-\-comm-key\fR option. Optional.
+Enable PV guest dumps. Requires the \fB\-\-comm\-key\fR option. Optional.
 .TP
 \fB\-\-disable\-dump\fR
-Disable PV guest dumps. This is the default. Optional.
+Disable PV guest dumps. This is the default.
+.TP
+\fB\-\-enable\-cck\-extension\-secret\fR
+Add-secret requests must provide an extension secret that matches the
+CCK-derived extension secret. Requires the \fB\-\-comm\-key\fR option.
+Optional.
+.TP
+\fB\-\-disable\-cck\-extension\-secret\fR
+Add-secret requests don't have to provide an extension secret. This is
+the default.
 .TP
 \fB\-\-enable\-pckmo\fR
 Enable the support for the DEA, TDEA, AES, and ECC PCKMO key encryption
-functions. This is the default. Optional.
+functions. This is the default.
 .TP
 \fB\-\-disable\-pckmo\fR
 Disable the support for the DEA, TDEA, AES, and ECC PCKMO key encryption

genprotimg/src/Makefile

@@ -27,7 +27,7 @@ $(bin_PROGRAM)_SRCS := $(bin_PROGRAM).c pv/pv_stage3.c pv/pv_image.c \
 	$(NULL)
 $(bin_PROGRAM)_OBJS := $($(bin_PROGRAM)_SRCS:.c=.o)
 
-ALL_CFLAGS += -std=gnu11 -DPKGDATADIR=$(PKGDATADIR) \
+ALL_CFLAGS += -DPKGDATADIR=$(PKGDATADIR) \
 	$(GLIB2_CFLAGS) $(LIBCRYPTO_CFLAGS) $(LIBCURL_CFLAGS) \
 	-DOPENSSL_API_COMPAT=0x10100000L \
 	$(WARNINGS) \

genprotimg/src/common.h

@@ -13,7 +13,6 @@
 #include <glib/gi18n.h>
 
 #include "boot/linux_layout.h"
-#include "boot/s390.h"
 #include "lib/zt_common.h"
 
 static const gchar tool_name[] = "genprotimg";

genprotimg/src/include/pv_hdr_def.h

@@ -12,7 +12,7 @@
 
 #include <openssl/sha.h>
 
-#include "boot/s390.h"
+#include "boot/psw.h"
 #include "lib/zt_common.h"
 #include "utils/crypto.h"
 
@@ -34,6 +34,10 @@
 #define PV_PCF_PCKMO_AES	__PV_BIT(57) /* PCKMO encrypt-AES-key functions allowed */
 #define PV_PCF_PCKM_ECC	__PV_BIT(58) /* PCKMO encrypt-ECC-key functions allowed */
 
+/* Secret control flags */
+#define PV_SCF_CCK_EXTENSION_SECRET_ENFORCMENT                                                     \
+	__PV_BIT(1) /* All add-secret requests must provide an extension secret */
+
 /* maxima for the PV version 1 */
 #define PV_V1_IPIB_MAX_SIZE	PAGE_SIZE
 #define PV_V1_PV_HDR_MAX_SIZE	(2 * PAGE_SIZE)

genprotimg/src/pv/pv_args.c

@@ -62,11 +62,12 @@ static gint pv_args_set_defaults(PvArgs *args, GError **err G_GNUC_UNUSED)
 
 static gint pv_args_validate_options(PvArgs *args, GError **err)
 {
+	const PvControlFlagsArgs *cf_args = &args->cf_args;
 	PvComponentType KERNEL = PV_COMP_TYPE_KERNEL;
 
 	/* Check for mutually exclusive arguments */
-	if (args->pcf && !(args->allow_pckmo == PV_NOT_SET &&
-			   args->allow_dump == PV_NOT_SET)) {
+	if (cf_args->pcf &&
+	    !(cf_args->enable_pckmo == PV_NOT_SET && cf_args->enable_dump == PV_NOT_SET)) {
 		g_set_error(
 			err, PV_PARSE_ERROR, PV_PARSE_ERROR_SYNTAX,
 			_("The '--x-pcf' option cannot be used with the '--(enable|disable)-pckmo' or"
@@ -74,6 +75,13 @@ static gint pv_args_validate_options(PvArgs *args, GError **err)
 		return -1;
 	}
 
+	if (cf_args->scf && !(cf_args->enable_cck_extension_secret_enforcement == PV_NOT_SET)) {
+		g_set_error(
+			err, PV_PARSE_ERROR, PV_PARSE_ERROR_SYNTAX,
+			_("The '--x-scf' option cannot be used with the '--(enable|disable)-extension-secret-required' flags.\nUse 'genprotimg --help' for more information"));
+		return -1;
+	}
+
 	/* Check for unused arguments */
 	if (args->unused_values->len > 0) {
 		g_autofree gchar *unused = NULL;
@@ -93,12 +101,20 @@ static gint pv_args_validate_options(PvArgs *args, GError **err)
 	}
 
 	/* Check for mandatory arguments */
-	if (args->allow_dump == PV_TRUE && !args->cust_comm_key_path) {
+	if (cf_args->enable_dump == PV_TRUE && !args->cust_comm_key_path) {
 		g_set_error(err, PV_PARSE_ERROR, PR_PARSE_ERROR_MISSING_ARGUMENT,
-			    _("Option '--allow-dump' requires the '--comm-key' option.\nUse 'genprotimg "
+			    _("Option '--enable-dump' requires the '--comm-key' option.\nUse 'genprotimg "
 			      "--help' for more information"));
 		return -1;
 	}
+	if (cf_args->enable_cck_extension_secret_enforcement == PV_TRUE &&
+	    !args->cust_comm_key_path) {
+		g_set_error(
+			err, PV_PARSE_ERROR, PR_PARSE_ERROR_MISSING_ARGUMENT,
+			_("Option '--enable-cck-extension-secret' requires the '--comm-key' option.\nUse 'genprotimg "
+			  "--help' for more information"));
+		return -1;
+	}
 
 	if (!args->output_path) {
 		g_set_error(err, PV_PARSE_ERROR, PR_PARSE_ERROR_MISSING_ARGUMENT,
@@ -178,11 +194,11 @@ static gboolean cb_set_string_option(const gchar *option, const gchar *value,
 	if (g_str_equal(option, "--x-header-key"))
 		args_option = &args->cust_root_key_path;
 	if (g_str_equal(option, "--x-pcf"))
-		args_option = &args->pcf;
+		args_option = &args->cf_args.pcf;
 	if (g_str_equal(option, "--x-psw"))
 		args_option = &args->psw_addr;
 	if (g_str_equal(option, "--x-scf"))
-		args_option = &args->scf;
+		args_option = &args->cf_args.scf;
 
 	if (!args_option) {
 		g_set_error(err, PV_PARSE_ERROR, PV_PARSE_ERROR_SYNTAX,
@@ -217,49 +233,48 @@ static gboolean cb_remaining_values(const gchar *option G_GNUC_UNUSED,
 }
 
 #define MUT_EXCL_BOOL_FLAG_CB_NAME(FLAG, VALUE) (cb_##FLAG##_##VALUE)
-#define DEFINE_MUT_EXCL_BOOL_FLAG_CB(FLAG, VALUE)                                        \
-	static gboolean MUT_EXCL_BOOL_FLAG_CB_NAME(FLAG, VALUE)(                         \
-		const gchar *option G_GNUC_UNUSED, const gchar *value G_GNUC_UNUSED,     \
-		PvArgs *args, GError **err)                                              \
-	{                                                                                \
-		if (!(args->allow_##FLAG == PV_NOT_SET ||                                \
-		      args->allow_##FLAG == VALUE)) {                                    \
-			g_set_error(err, G_OPTION_ERROR, G_OPTION_ERROR_FAILED,          \
-				    "'--enable-" #FLAG "' and '--disable-" #FLAG         \
-				    "' are mutually exclusive");                         \
-			return FALSE;                                                    \
-		}                                                                        \
-		args->allow_##FLAG = VALUE;                                              \
-		return TRUE;                                                             \
+#define DEFINE_MUT_EXCL_BOOL_FLAG_CB(FLAG, VALUE)                                                  \
+	static gboolean MUT_EXCL_BOOL_FLAG_CB_NAME(FLAG, VALUE)(const gchar *option G_GNUC_UNUSED, \
+								const gchar *value G_GNUC_UNUSED,  \
+								PvArgs *args, GError **err)        \
+	{                                                                                          \
+		if (!(args->cf_args.enable_##FLAG == PV_NOT_SET ||                                 \
+		      args->cf_args.enable_##FLAG == VALUE)) {                                     \
+			g_set_error(err, G_OPTION_ERROR, G_OPTION_ERROR_FAILED,                    \
+				    "'--enable-" #FLAG "' and '--disable-" #FLAG                   \
+				    "' are mutually exclusive");                                   \
+			return FALSE;                                                              \
+		}                                                                                  \
+		args->cf_args.enable_##FLAG = VALUE;                                               \
+		return TRUE;                                                                       \
 	}
 
 #define DEFINE_MUT_EXCL_BOOL_FLAG_CBS(FLAG)                                    \
 	DEFINE_MUT_EXCL_BOOL_FLAG_CB(FLAG, PV_TRUE)                            \
 	DEFINE_MUT_EXCL_BOOL_FLAG_CB(FLAG, PV_FALSE)
 
-#define MUT_EXCL_BOOL_FLAG(FLAG, ENABLE_DESC, DISABLE_DESC)                    \
-	{                                                                      \
-		.long_name = "enable-" #FLAG,                                  \
-		.short_name = 0,                                               \
-		.flags = G_OPTION_FLAG_NO_ARG,                                 \
-		.arg = G_OPTION_ARG_CALLBACK,                                  \
-		.arg_data = MUT_EXCL_BOOL_FLAG_CB_NAME(FLAG, PV_TRUE),         \
-		.description = ENABLE_DESC,                                    \
-	},                                                                     \
-	{                                                                      \
-		.long_name = "disable-" #FLAG,                                 \
-		.short_name = 0,                                               \
-		.flags = G_OPTION_FLAG_NO_ARG,                                 \
-		.arg = G_OPTION_ARG_CALLBACK,                                  \
-		.arg_data = MUT_EXCL_BOOL_FLAG_CB_NAME(FLAG, PV_FALSE),        \
-		.description = DISABLE_DESC,                                   \
+#define MUT_EXCL_BOOL_FLAG(NAME, FLAG, ENABLE_DESC, DISABLE_DESC)                                  \
+	{                                                                                          \
+		.long_name = "enable-" #NAME,                                                      \
+		.short_name = 0,                                                                   \
+		.flags = G_OPTION_FLAG_NO_ARG,                                                     \
+		.arg = G_OPTION_ARG_CALLBACK,                                                      \
+		.arg_data = MUT_EXCL_BOOL_FLAG_CB_NAME(FLAG, PV_TRUE),                             \
+		.description = ENABLE_DESC,                                                        \
+	},                                                                                         \
+	{                                                                                          \
+		.long_name = "disable-" #NAME, .short_name = 0, .flags = G_OPTION_FLAG_NO_ARG,     \
+		.arg = G_OPTION_ARG_CALLBACK,                                                      \
+		.arg_data = MUT_EXCL_BOOL_FLAG_CB_NAME(FLAG, PV_FALSE),                            \
+		.description = DISABLE_DESC,                                                       \
 	}
 
-#define INDENT "                                   "
+#define INDENT "                                     "
 
 /* Define the callbacks for mutually exclusive command line flags */
-DEFINE_MUT_EXCL_BOOL_FLAG_CBS(dump)
-DEFINE_MUT_EXCL_BOOL_FLAG_CBS(pckmo)
+DEFINE_MUT_EXCL_BOOL_FLAG_CBS(dump);
+DEFINE_MUT_EXCL_BOOL_FLAG_CBS(pckmo);
+DEFINE_MUT_EXCL_BOOL_FLAG_CBS(cck_extension_secret_enforcement);
 
 gint pv_args_parse_options(PvArgs *args, gint *argc, gchar **argv[],
 			   GError **err)
@@ -280,7 +295,7 @@ gint pv_args_parse_options(PvArgs *args, gint *argc, gchar **argv[],
 		  .arg_data = &args->host_keys,
 		  .description =
 			_("FILE specifies a host-key document. At least\n" INDENT
-			  "one is required Specify this option multiple times\n" INDENT
+			  "one is required. Specify this option multiple times\n" INDENT
 			  "to enable the image to run on more than one host."),
 		  .arg_description = _("FILE") },
 		{ .long_name = "cert",
@@ -325,27 +340,31 @@ gint pv_args_parse_options(PvArgs *args, gint *argc, gchar **argv[],
 		  .description = _("Use the kernel parameters stored in PARMFILE\n" INDENT
 				   "(optional)."),
 		  .arg_description = _("PARMFILE") },
+		MUT_EXCL_BOOL_FLAG(dump, dump,
+				   _("Enable PV guest dumps (optional). This option\n" INDENT
+				     "requires the '--comm-key' option."),
+				   _("Disable PV guest dumps (default).")),
 		MUT_EXCL_BOOL_FLAG(
-			dump,
-			_("Enable PV guest dumps (optional). This option\n" INDENT
-			  "requires the '--comm-key' option."),
-			_("Disable PV guest dumps (default) (optional).")),
-		MUT_EXCL_BOOL_FLAG(
-			pckmo,
-			_("Enable the support for the DEA, TDEA, AES, and\n" INDENT
-			  "ECC PCKMO key encryption functions (default)\n" INDENT
-			  "(optional)."),
-			_("Disable the support for the DEA, TDEA, AES, and\n" INDENT
-			  "ECC PCKMO key encryption functions (optional).")),
+			cck-extension-secret, cck_extension_secret_enforcement,
+			_("Add-secret requests must provide an extension\n" INDENT
+			  "secret that matches the CCK-derived extension\n" INDENT
+			  "secret (optional). This option requires the\n" INDENT
+			  "'--comm-key' option."),
+			_("Add-secret requests don't have to provide\n" INDENT
+			  "the CCK-derived extension secret (default).")),
+		MUT_EXCL_BOOL_FLAG(pckmo, pckmo,
+				   _("Enable the support for the DEA, TDEA, AES, and\n" INDENT
+				     "ECC PCKMO key encryption functions (default)."),
+				   _("Disable the support for the DEA, TDEA, AES, and\n" INDENT
+				     "ECC PCKMO key encryption functions (optional).")),
 		{ .long_name = "comm-key",
 		  .short_name = 0,
 		  .flags = G_OPTION_FLAG_FILENAME,
 		  .arg = G_OPTION_ARG_CALLBACK,
 		  .arg_data = cb_set_string_option,
 		  .description = _(
-			  "FILE contains the key with which you encrypt\n" INDENT
-			  "the PV guest dump (optional). Required by\n" INDENT
-			  "the '--enable-dump' option."),
+			  "FILE contains the customer communication key\n" INDENT
+			  "(CCK) (optional)."),
 		  .arg_description = _("FILE") },
 		{ .long_name = "crl",
 		  .short_name = 0,
@@ -450,6 +469,8 @@ gint pv_args_parse_options(PvArgs *args, gint *argc, gchar **argv[],
 		  .arg_data = cb_set_string_option,
 		  .description = _("Specify the secret control flags\n" INDENT
 				   "as a hexadecimal value.\n" INDENT
+				   "Optional; mutually exclusive with\n" INDENT
+				   "'--(enable|disable)-cck-extension-secret';\n" INDENT
 				   "Optional; default: '0x0'."),
 		  .arg_description = _("VALUE") },
 		{ 0 },
@@ -487,8 +508,10 @@ PvArgs *pv_args_new(void)
 	g_autoptr(PvArgs) args = g_new0(PvArgs, 1);
 
 	args->unused_values = g_ptr_array_new_with_free_func(g_free);
-	args->allow_dump = PV_NOT_SET;
-	args->allow_pckmo = PV_NOT_SET;
+	/* `args->cf_args` is implicitly initialized with zeros since
+	 * `g_new0` is used. So there is no reason to explicitly
+	 * initialize the values as PV_NOT_SET == 0.
+	 */
 	return g_steal_pointer(&args);
 }
 
@@ -497,8 +520,8 @@ void pv_args_free(PvArgs *args)
 	if (!args)
 		return;
 
-	g_free(args->pcf);
-	g_free(args->scf);
+	g_free(args->cf_args.pcf);
+	g_free(args->cf_args.scf);
 	g_free(args->psw_addr);
 	g_free(args->cust_root_key_path);
 	g_free(args->cust_comm_key_path);

genprotimg/src/pv/pv_args.h

@@ -23,19 +23,27 @@ PvArg *pv_arg_new(PvComponentType type, const gchar *path);
 void pv_arg_free(PvArg *arg);
 
 typedef enum pv_tristate {
-		  PV_NOT_SET = 0,
-		  PV_TRUE,
-		  PV_FALSE,
+	PV_NOT_SET = 0,
+	PV_TRUE,
+	PV_FALSE,
 } PvTristate;
+/* The value of PV_NOT_SET is not allowed to be changed */
+STATIC_ASSERT(PV_NOT_SET == 0)
+
+typedef struct {
+	gchar *pcf;
+	gchar *scf;
+	/* Add-secret requests do require CCK-extension secrets */
+	PvTristate enable_cck_extension_secret_enforcement;
+	PvTristate enable_dump;
+	PvTristate enable_pckmo;
+} PvControlFlagsArgs;
 
 typedef struct {
 	gint log_level;
 	gint no_verify;
 	gboolean offline;
-	gchar *pcf;
-	gchar *scf;
-	PvTristate allow_dump;
-	PvTristate allow_pckmo;
+	PvControlFlagsArgs cf_args;
 	gchar *psw_addr; /* PSW address which will be used for the start of
 			  * the actual component (e.g. Linux kernel)
 			  */

genprotimg/src/pv/pv_comp.c

@@ -15,7 +15,6 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "boot/s390.h"
 #include "common.h"
 #include "utils/align.h"
 #include "utils/buffer.h"

genprotimg/src/pv/pv_comps.c

@@ -12,7 +12,7 @@
 #include <openssl/evp.h>
 #include <stdint.h>
 
-#include "boot/s390.h"
+#include "boot/psw.h"
 #include "boot/stage3b.h"
 #include "common.h"
 #include "utils/align.h"

genprotimg/src/pv/pv_comps.h

@@ -14,7 +14,7 @@
 #include <openssl/evp.h>
 #include <stdint.h>
 
-#include "boot/s390.h"
+#include "boot/psw.h"
 #include "boot/stage3b.h"
 #include "utils/buffer.h"
 

genprotimg/src/pv/pv_hdr.c

@@ -14,7 +14,7 @@
 #include <stdint.h>
 #include <string.h>
 
-#include "boot/s390.h"
+#include "boot/psw.h"
 #include "include/pv_crypto_def.h"
 #include "utils/buffer.h"
 #include "utils/crypto.h"

genprotimg/src/pv/pv_hdr.h

@@ -13,7 +13,6 @@
 #include <glib.h>
 #include <stdint.h>
 
-#include "boot/s390.h"
 #include "include/pv_hdr_def.h"
 #include "utils/crypto.h"
 #include "utils/buffer.h"

genprotimg/src/pv/pv_image.c

@@ -15,7 +15,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "boot/s390.h"
+#include "boot/psw.h"
 #include "boot/stage3a.h"
 #include "common.h"
 #include "include/pv_crypto_def.h"
@@ -228,37 +228,40 @@ static gint pv_img_set_psw_addr(PvImage *img, const gchar *psw_addr_s,
 	return 0;
 }
 
-static gint pv_img_set_control_flags(PvImage *img, const gchar *pcf_s,
-				     const gchar *scf_s,
-				     PvTristate allow_dump,
-				     PvTristate allow_pckmo, GError **err)
+static void pv_img_set_control_flag(uint64_t *flags, const PvTristate option, const uint64_t flag)
+{
+	if (option == PV_TRUE)
+		*flags |= flag;
+	else if (option == PV_FALSE)
+		*flags &= ~flag;
+}
+
+static gint pv_img_set_control_flags(PvImage *img, const PvControlFlagsArgs *cf_args, GError **err)
 {
 	uint64_t flags;
 
-	if (pcf_s) {
-		if (hex_str_toull(pcf_s, &flags, err) < 0)
+	/* Set plain control flags */
+	if (cf_args->pcf) {
+		if (hex_str_toull(cf_args->pcf, &flags, err) < 0)
 			return -1;
 
 		img->pcf = flags;
 	}
 
-	if (scf_s) {
-		if (hex_str_toull(scf_s, &flags, err) < 0)
+	pv_img_set_control_flag(&img->pcf, cf_args->enable_dump, PV_PCF_ALLOW_DUMPING);
+	pv_img_set_control_flag(&img->pcf, cf_args->enable_pckmo,
+				PV_PCF_PCKM_ECC | PV_PCF_PCKMO_AES | PV_PCF_PCKMO_DEA_TDEA);
+
+	/* Set secret control flags */
+	if (cf_args->scf) {
+		if (hex_str_toull(cf_args->scf, &flags, err) < 0)
 			return -1;
 
 		img->scf = flags;
 	}
 
-	if (allow_dump == PV_TRUE)
-		img->pcf |= PV_PCF_ALLOW_DUMPING;
-	else if (allow_dump == PV_FALSE)
-		img->pcf &= ~PV_PCF_ALLOW_DUMPING;
-
-	if (allow_pckmo == PV_TRUE)
-		img->pcf |= PV_PCF_PCKM_ECC | PV_PCF_PCKMO_AES | PV_PCF_PCKMO_DEA_TDEA;
-	else if (allow_pckmo == PV_FALSE)
-		img->pcf &= ~(PV_PCF_PCKM_ECC | PV_PCF_PCKMO_AES | PV_PCF_PCKMO_DEA_TDEA);
-
+	pv_img_set_control_flag(&img->scf, cf_args->enable_cck_extension_secret_enforcement,
+				PV_SCF_CCK_EXTENSION_SECRET_ENFORCMENT);
 	return 0;
 }
 
@@ -610,9 +613,7 @@ PvImage *pv_img_new(PvArgs *args, const gchar *stage3a_path, GError **err)
 		return NULL;
 
 	/* set the control flags: PCF and SCF */
-	if (pv_img_set_control_flags(ret, args->pcf, args->scf,
-				     args->allow_dump, args->allow_pckmo,
-				     err) < 0)
+	if (pv_img_set_control_flags(ret, &args->cf_args, err) < 0)
 		return NULL;
 
 	/* read in the keys */
@@ -683,7 +684,26 @@ gint pv_img_add_component(PvImage *img, const PvArg *arg, GError **err)
 {
 	g_autoptr(PvComponent) comp = NULL;
 
-	comp = pv_component_new_file(arg->type, arg->path, err);
+	switch (arg->type) {
+	case PV_COMP_TYPE_INITRD:
+	case PV_COMP_TYPE_KERNEL:
+	case PV_COMP_TYPE_STAGE3B:
+		comp = pv_component_new_file(arg->type, arg->path, err);
+		break;
+	case PV_COMP_TYPE_CMDLINE: {
+		g_autoptr(PvBuffer) buf = NULL;
+		g_autofree char *data = NULL;
+		gsize length;
+
+		if (!g_file_get_contents(arg->path, &data, &length, err))
+			return -1;
+
+		/* Add one for the null terminator */
+		buf = pv_buffer_take(g_steal_pointer(&data), length + 1);
+		comp = pv_component_new_buf(arg->type, buf, err);
+	} break;
+	}
+
 	if (!comp)
 		return -1;
 

genprotimg/src/pv/pv_image.h

@@ -15,7 +15,7 @@
 #include <openssl/evp.h>
 #include <stdint.h>
 
-#include "boot/s390.h"
+#include "boot/psw.h"
 #include "utils/buffer.h"
 
 #include "pv_args.h"

genprotimg/src/pv/pv_ipib.c

@@ -13,7 +13,6 @@
 #include <stdio.h>
 
 #include "boot/ipl.h"
-#include "boot/s390.h"
 #include "common.h"
 #include "include/pv_hdr_def.h"
 #include "lib/zt_common.h"
@@ -60,7 +59,7 @@ static gint pv_ipib_init(IplParameterBlock *ipib, GSList *comps,
 	ipib_size = MAX(ipl_pl_hdr_size + blk0_len, (uint32_t)PAGE_SIZE);
 	g_assert(pv_ipib_get_size(comps_length) == ipib_size);
 
-	pv->pbt = IPL_TYPE_PV;
+	pv->pbt = IPL_PBT_PV;
 	pv->len = GUINT32_TO_BE(blk0_len);
 	pv->num_comp = GUINT32_TO_BE(comps_length);
 	/* both values will be overwritten during the IPL process by

genprotimg/src/pv/pv_stage3.h

@@ -15,7 +15,6 @@
 #include <stdint.h>
 
 #include "boot/ipl.h"
-#include "boot/s390.h"
 #include "boot/stage3b.h"
 #include "utils/buffer.h"
 

genprotimg/src/utils/align.h

@@ -10,8 +10,8 @@
 #ifndef PV_UTILS_ALIGN_H
 #define PV_UTILS_ALIGN_H
 
-#include "boot/s390.h"
 #include "lib/zt_common.h"
+#include "boot/page.h"
 
 #define IS_ALIGNED(addr, size) (!(addr & (size - 1)))
 

genprotimg/src/utils/buffer.c

@@ -26,6 +26,15 @@ PvBuffer *pv_buffer_alloc(gsize size)
 	return ret;
 }
 
+PvBuffer *pv_buffer_take(char *data, gsize size)
+{
+	PvBuffer *ret = g_new0(PvBuffer, 1);
+
+	ret->data = data;
+	ret->size = size;
+	return ret;
+}
+
 PvBuffer *pv_buffer_dup(const PvBuffer *buf, gboolean page_aligned)
 {
 	PvBuffer *ret;

genprotimg/src/utils/buffer.h

@@ -21,6 +21,10 @@ typedef struct PvBuffer {
 } PvBuffer;
 
 PvBuffer *pv_buffer_alloc(gsize size);
+/* After this call @data belongs to the PvBuffer and must no longer be modified
+ * by the caller.
+ */
+PvBuffer *pv_buffer_take(char *data, gsize size);
 void pv_buffer_free(PvBuffer *buf);
 void pv_buffer_clear(PvBuffer **buf);
 gint pv_buffer_write(const PvBuffer *buf, FILE *file, GError **err);

genprotimg/src/utils/crypto.c

@@ -24,7 +24,7 @@
 #include <stdint.h>
 #include <string.h>
 
-#include "boot/s390.h"
+#include "boot/page.h"
 #include "common.h"
 #include "include/pv_crypto_def.h"
 #include "pv/pv_error.h"

hyptop/dg_debugfs_lpar.c

@@ -116,6 +116,7 @@ static void l_sd_cpu_fill(struct sd_cpu *cpu, struct l_x_cpu_info *cpu_info,
 			  int threads)
 {
 	sd_cpu_cpu_time_us_set(cpu, cpu_info->lp_time);
+	sd_cpu_threads_per_core_set(cpu, threads);
 	if (threads > 1)
 		sd_cpu_thread_time_us_set(cpu,
 			cpu_info->lp_time * threads - cpu_info->mt_idle_time);
@@ -297,6 +298,7 @@ static struct sd_sys_item *l_sys_item_vec[] = {
 	&sd_sys_item_thread_cnt,
 	&sd_sys_item_core_diff,
 	&sd_sys_item_thread_diff,
+	&sd_sys_item_smt_diff,
 	&sd_sys_item_mgm_diff,
 	&sd_sys_item_core,
 	&sd_sys_item_thread,
@@ -326,6 +328,7 @@ static struct sd_cpu_item *l_cpu_item_vec[] = {
 	&sd_cpu_item_type,
 	&sd_cpu_item_core_diff,
 	&sd_cpu_item_thread_diff,
+	&sd_cpu_item_smt_diff,
 	&sd_cpu_item_mgm_diff,
 	&sd_cpu_item_core,
 	&sd_cpu_item_thread,

hyptop/helper.c

@@ -391,3 +391,24 @@ void hyptop_helper_init(void)
 	if (l_iconv_ebcdic_ascii == (iconv_t) -1)
 		ERR_EXIT("Could not initialize iconv\n");
 }
+
+/*
+ * Calculate real SMT utilization
+ * @core_us: core utilization in us
+ * @thr_us: thread utilization in us
+ * @mgm_us: management utilization in us
+ * @thread_per_core: SMT thread count per core
+ */
+s64 ht_calculate_smt_util(u64 core_us, u64 thr_us, u64 mgm_us, int thread_per_core)
+{
+	s64 component1, component2, smt_us;
+	double smt_factor = g.o.smt_factor;
+
+	component1 = thread_per_core * core_us - thr_us;
+	if (thread_per_core > 1)
+		component1 /= smt_factor;
+	component2 = thr_us - core_us;
+	smt_us = G0(component1 + component2 + mgm_us);
+
+	return smt_us;
+}

hyptop/helper.h

@@ -34,6 +34,7 @@ extern void ht_ebcdic_to_ascii(char *in, char *out, size_t len);
 extern char *ht_mount_point_get(const char *fs_type);
 extern u64 ht_ext_tod_2_us(void *tod_ext);
 extern void ht_print_time(void);
+extern s64 ht_calculate_smt_util(u64 core_us, u64 thr_us, u64 mgm_us, int thread_per_core);
 
 /*
  * Memory alloc functions

hyptop/hyptop.8

@@ -74,6 +74,18 @@ In this mode no user input is accepted.
 .BR "\-d <SECONDS>" " or " "\-\-delay=<SECONDS>"
 Specifies the delay between screen updates.
 .TP
+.BR "\-m <FACTOR>" " or " "\-\-smt_factor=<FACTOR>"
+Specifies a workload dependent SMT speedup factor.
+For IBM z15 servers, the default value is 1.3. If the workload benefits
+from SMT, you can specify a higher value. If the workload does not benefit
+from SMT, specifying lower values results in more accurate reports of
+real CPU SMT utilization field for LPARs. There is no hard boundary except
+that it must be a positive value. Example ranges to select a sensible value
+from:
+
+ For IBM z13: [0.8, 1.3]
+ For IBM z15: [1.1, 1.5]
+.TP
 .BR "\-n <ITERATIONS>" " or " "\-\-iterations=<ITERATIONS>"
 Specifies the maximum number of iterations before ending.
 
@@ -119,6 +131,7 @@ The following fields are available under LPAR:
   In "sys_list" and "sys" window:
   'c' - Core dispatch time per second
   'e' - Thread time per second
+  'S' - Real CPU SMT utilization
   'm' - Management time per second
   'C' - Total core dispatch time
   'E' - Total thread time

hyptop/hyptop.h

@@ -22,6 +22,7 @@
 #include "table.h"
 
 #define HYPTOP_OPT_DEFAULT_DELAY	2
+#define HYPTOP_OPT_DEFAULT_SMT_SCALE	1.3
 #define HYPTOP_MAX_WIN_DEPTH		4
 #define HYPTOP_MAX_LINE			512
 #define PROG_NAME			"hyptop"
@@ -60,6 +61,8 @@ struct hyptop_opts {
 
 	int				delay_s;
 	int				delay_us;
+
+	double				smt_factor;
 };
 
 /*

hyptop/opts.c

@@ -39,6 +39,7 @@ static char HELP_TEXT[] =
 "-t, --cpu_types TYPE[,..]       CPU types used for time calculations\n"
 "-b, --batch_mode                Use batch mode (no curses)\n"
 "-d, --delay SECONDS             Delay time between screen updates\n"
+"-m, --smt_factor FACTOR         Machine generation dependent SMT speedup factor.\n"
 "-n, --iterations NUMBER         Number of iterations before ending\n";
 
 /*
@@ -48,6 +49,7 @@ static void l_init_defaults(void)
 {
 	g.prog_name = PROG_NAME;
 	g.o.delay_s = HYPTOP_OPT_DEFAULT_DELAY;
+	g.o.smt_factor = HYPTOP_OPT_DEFAULT_SMT_SCALE;
 	g.w.cur = &win_sys_list;
 	g.o.cur_win = &win_sys_list;
 }
@@ -108,6 +110,20 @@ static void l_delay_set(char *delay_string)
 	g.o.delay_us = 0;
 }
 
+/*
+ * Set SMT factor option
+ */
+static void l_factor_set(char *value_string)
+{
+	double factor;
+
+	if (sscanf(value_string, "%lf", &factor) != 1)
+		ERR_EXIT("The SMT factor \"%s\" is invalid\n", value_string);
+	if (factor <= 0)
+		ERR_EXIT("The SMT factor \"%s\" is <= 0\n", value_string);
+	g.o.smt_factor = factor;
+}
+
 /*
  * Get number of occurrences of character 'c' in "str"
  */
@@ -299,6 +315,7 @@ void opts_parse(int argc, char *argv[])
 		{ "help",        no_argument,       NULL, 'h'},
 		{ "batch_mode",  no_argument,       NULL, 'b'},
 		{ "delay",       required_argument, NULL, 'd'},
+		{ "smt_factor",  required_argument, NULL, 'm'},
 		{ "window",      required_argument, NULL, 'w'},
 		{ "sys",         required_argument, NULL, 's'},
 		{ "iterations",  required_argument, NULL, 'n'},
@@ -307,7 +324,7 @@ void opts_parse(int argc, char *argv[])
 		{ "cpu_types",   required_argument, NULL, 't'},
 		{ NULL,          0,                 NULL, 0  }
 	};
-	static const char option_string[] = "vhbd:w:s:n:f:t:S:";
+	static const char option_string[] = "vhbd:m:w:s:n:f:t:S:";
 
 	l_init_defaults();
 	while (1) {
@@ -328,6 +345,9 @@ void opts_parse(int argc, char *argv[])
 		case 'd':
 			l_delay_set(optarg);
 			break;
+		case 'm':
+			l_factor_set(optarg);
+			break;
 		case 'w':
 			l_window_set(optarg);
 			break;

hyptop/sd.h

@@ -200,6 +200,7 @@ struct sd_cpu {
 	struct sd_cpu_info	*d_cur;
 	struct sd_cpu_info	*d_prev;
 	u16			cnt;
+	int			threads_per_core;
 	enum sd_cpu_state	state;
 };
 
@@ -232,6 +233,11 @@ static inline void sd_cpu_cpu_time_us_set(struct sd_cpu *cpu, u64 value)
 	cpu->d_cur->cpu_time_us = value;
 }
 
+static inline void sd_cpu_threads_per_core_set(struct sd_cpu *cpu, int value)
+{
+	cpu->threads_per_core = value;
+}
+
 static inline void sd_cpu_thread_time_us_set(struct sd_cpu *cpu, u64 value)
 {
 	cpu->d_cur->thread_time_us = value;
@@ -335,6 +341,7 @@ extern struct sd_cpu_item sd_cpu_item_state;
 extern struct sd_cpu_item sd_cpu_item_cpu_diff;
 extern struct sd_cpu_item sd_cpu_item_core_diff;
 extern struct sd_cpu_item sd_cpu_item_thread_diff;
+extern struct sd_cpu_item sd_cpu_item_smt_diff;
 extern struct sd_cpu_item sd_cpu_item_mgm_diff;
 extern struct sd_cpu_item sd_cpu_item_wait_diff;
 extern struct sd_cpu_item sd_cpu_item_steal_diff;
@@ -398,6 +405,7 @@ static inline char *sd_sys_item_str(struct sd_sys *sys,
 extern struct sd_sys_item sd_sys_item_cpu_cnt;
 extern struct sd_sys_item sd_sys_item_core_cnt;
 extern struct sd_sys_item sd_sys_item_thread_cnt;
+extern struct sd_sys_item sd_sys_item_smt_diff;
 extern struct sd_sys_item sd_sys_item_cpu_oper_cnt;
 extern struct sd_sys_item sd_sys_item_cpu_deconf_cnt;
 extern struct sd_sys_item sd_sys_item_cpu_stop_cnt;

hyptop/sd_cpu_items.c

@@ -98,6 +98,18 @@ static u64 l_cpu_item_64(struct sd_cpu_item *item, struct sd_cpu *cpu)
 		return l_cpu_info_u64(cpu->d_cur, item->offset) / cpu->cnt;
 }
 
+static u64 l_cpu_smt_util(struct sd_cpu_item *item, struct sd_cpu *cpu)
+{
+	u64 core_us, thr_us, mgm_us;
+	(void)item;
+
+	core_us = sd_cpu_item_u64(&sd_cpu_item_core_diff, cpu);
+	thr_us = sd_cpu_item_u64(&sd_cpu_item_thread_diff, cpu);
+	mgm_us = sd_cpu_item_u64(&sd_cpu_item_mgm_diff, cpu);
+
+	return ht_calculate_smt_util(core_us, thr_us, mgm_us, cpu->threads_per_core);
+}
+
 /*
  * CPU item definitions
  */
@@ -139,6 +151,13 @@ struct sd_cpu_item sd_cpu_item_thread_diff = {
 	.fn_u64	= l_cpu_diff_u64,
 };
 
+struct sd_cpu_item sd_cpu_item_smt_diff = {
+	.table_col = TABLE_COL_TIME_DIFF_SUM(table_col_unit_perc, 'S', "smt"),
+	.type	= SD_TYPE_U64,
+	.desc	= "Real CPU SMT utilization",
+	.fn_u64	= l_cpu_smt_util,
+};
+
 struct sd_cpu_item sd_cpu_item_mgm_diff = {
 	.table_col = TABLE_COL_TIME_DIFF_SUM(table_col_unit_perc, 'm', "mgm"),
 	.type	= SD_TYPE_U64,

hyptop/sd_sys_items.c

@@ -208,6 +208,18 @@ static s64 l_sys_cpu_info_diff_s64(struct sd_sys_item *item, struct sd_sys *sys)
 	return rc;
 }
 
+static u64 l_sys_smt_util(struct sd_sys_item *item, struct sd_sys *sys)
+{
+	u64 core_us, thr_us, mgm_us;
+	(void)item;
+
+	core_us = sd_sys_item_u64(sys, &sd_sys_item_core_diff);
+	thr_us = sd_sys_item_u64(sys, &sd_sys_item_thread_diff);
+	mgm_us = sd_sys_item_u64(sys, &sd_sys_item_mgm_diff);
+
+	return ht_calculate_smt_util(core_us, thr_us, mgm_us, sys->threads_per_core);
+}
+
 /*
  * System item definitions
  */
@@ -277,6 +289,13 @@ struct sd_sys_item sd_sys_item_thread_diff = {
 	.fn_u64	= l_sys_cpu_info_diff_u64,
 };
 
+struct sd_sys_item sd_sys_item_smt_diff = {
+	.table_col = TABLE_COL_TIME_DIFF_SUM(table_col_unit_perc, 'S', "smt"),
+	.type	= SD_TYPE_U64,
+	.desc	= "Real CPU SMT utilization",
+	.fn_u64	= l_sys_smt_util,
+};
+
 struct sd_sys_item sd_sys_item_mgm_diff = {
 	.table_col = TABLE_COL_TIME_DIFF_SUM(table_col_unit_perc, 'm', "mgm"),
 	.offset = SD_CPU_INFO_OFFSET(mgm_time_us),

include/boot/boot_defs.h

@@ -195,15 +195,25 @@ struct boot_info_bp_dump {
 	uint8_t		unused[16];
 } __packed;
 
+/* This represents on-disk pointer to a block on disk */
+union disk_blockptr {
+	struct eckd_blockptr_legacy eckd_legacy;
+	struct eckd_blockptr eckd;
+	struct linear_blockptr linear;
+};
+
 struct boot_info_bp_ipl {
-	union {
-		struct eckd_blockptr_legacy eckd_legacy;
-		struct eckd_blockptr eckd;
-		struct linear_blockptr lin;
-	} bm_ptr;
+	union disk_blockptr bm_ptr;
 	uint8_t		unused[16];
 } __packed;
 
+struct disk_program_table {
+	uint32_t magic;
+	uint32_t version;
+	uint64_t unused;
+	union disk_blockptr component_table[0];
+} __packed;
+
 struct boot_info {
 	char		magic[4];
 	uint8_t		version;

include/boot/error.h

@@ -34,10 +34,10 @@
 /* Secure IPL error */
 #define ESECUREBOOT		0x00004512
 
-/* kdump: No operating system information was found */
+/* os_info error: No operating system information was found */
 #define EOS_INFO_MISSING	0x00004520
 
-/* kdump: The checksum of the operating system information is incorrect */
+/* os_info error: The checksum of the operating system information is incorrect */
 #define EOS_INFO_CSUM_FAILED	0x00004521
 
 /* kdump: The major version of the operating system information is too high */

include/boot/ipl.h

@@ -11,7 +11,7 @@
 #define IPL_H
 
 #include "lib/zt_common.h"
-#include "s390.h"
+#include "page.h"
 
 #define IPL_FLAG_SECURE		 0x40
 
@@ -21,10 +21,6 @@
 #define IPL_MAX_SUPPORTED_VERSION	0
 #define IPL_PARM_BLOCK_VERSION		0x1
 
-/* IPL Types */
-#define IPL_TYPE_PV			0x5
-
-
 #ifndef __ASSEMBLER__
 
 #include <stdint.h>
@@ -43,6 +39,16 @@ struct ipl_pb_hdr {
 	uint8_t  pbt;
 } __packed;
 
+/* IPL Parameter Block types */
+enum ipl_pbt {
+	IPL_PBT_FCP = 0,
+	IPL_PBT_SCP_DATA = 1,
+	IPL_PBT_CCW = 2,
+	IPL_PBT_ECKD = 3,
+	IPL_PBT_NVME = 4,
+	IPL_PBT_PV = 5,
+};
+
 /* IPL Parameter Block 0 with common fields */
 struct ipl_pb0_common {
 	uint32_t len;

include/boot/loaders_layout.h

@@ -22,11 +22,19 @@
 #define STAGE2_DESC			_AC(0x78, UL)
 #define STAGE2_ENTRY			_AC(0x2018, UL)
 #define STAGE2_HEAP_ADDRESS		_AC(0x6000, UL)
+#define ECKD2DUMP_SV_HEAP_ADDRESS	_AC(0xb000, UL)
 #define STAGE2_HEAP_SIZE		_AC(0x3000, UL)
 #define STAGE2_STACK_ADDRESS		_AC(0xe400, UL)
 #define STAGE2_STACK_SIZE		_AC(0x1c00, UL)
+#define ECKD2DUMP_SV_STACK_ADDRESS	_AC(0xe000, UL)
+#define ECKD2DUMP_SV_STACK_SIZE		_AC(0x2000, UL)
 #define STAGE2_MAX_SIZE			_AC(0x3000, UL)
 
+#define STAGE2_DUMPER_SIZE_V1		_AC(0x1000, UL)
+#define STAGE2_DUMPER_SIZE_V2		_AC(0x2000, UL)
+#define STAGE2_DUMPER_SIZE_V3		_AC(0x3000, UL)
+#define STAGE2_DUMPER_SIZE_ZLIB		_AC(0x8000, UL)
+
 #define STAGE3_ENTRY			_AC(0xa000, UL)
 
 #define STAGE2_LOAD_ADDRESS		_AC(0x2000, UL)

include/boot/os_info.h

@@ -0,0 +1,78 @@
+/*
+ * zipl - zSeries Initial Program Loader tool
+ *
+ * os-info definitions
+ *
+ * Copyright IBM Corp. 2013, 2023
+ *
+ * s390-tools is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#ifndef OS_INFO_H
+#define OS_INFO_H
+
+#include "lib/zt_common.h"
+#include "boot/error.h"
+#include "boot/s390.h"
+#include <stdint.h>
+
+#define OS_INFO_MAGIC			0x4f53494e464f535aULL /* OSINFOSZ */
+#define OS_INFO_CSUM_SIZE		(sizeof(struct os_info) - offsetof(struct os_info, version_major))
+#define OS_INFO_FLAGS_ENTRY_SIZE	(sizeof(unsigned long))
+
+#define OS_INFO_VMCOREINFO		0
+#define OS_INFO_REIPL_BLOCK		1
+#define OS_INFO_FLAGS_ENTRY		2
+
+#define OS_INFO_FLAG_REIPL_CLEAR	(1UL << 0)
+
+struct os_info_entry {
+	uint64_t addr;
+	uint64_t size;
+	uint32_t csum;
+} __packed;
+
+struct os_info {
+	uint64_t magic;
+	uint32_t csum;
+	uint16_t version_major;
+	uint16_t version_minor;
+	uint64_t crashkernel_addr;
+	uint64_t crashkernel_size;
+	struct os_info_entry entry[3];
+	uint8_t reserved[4004];
+} __packed;
+
+/*
+ * Return 0 in case of valid os_info
+ * Return -EOS_INFO_MISSING if os_info address is not page aligned or page is
+ * not accessible or os_info magic value is missing.
+ * Return -EOS_INFO_CSUM_FAILED if os_info checksum is invalid.
+ */
+static inline int os_info_check(const struct os_info *os_info)
+{
+	if (!os_info ||
+	    (unsigned long)os_info % PAGE_SIZE ||
+	    !page_is_valid((unsigned long)os_info) ||
+	    os_info->magic != OS_INFO_MAGIC)
+		return -EOS_INFO_MISSING;
+	if (os_info->csum != csum_partial(&os_info->version_major, OS_INFO_CSUM_SIZE, 0))
+		return -EOS_INFO_CSUM_FAILED;
+	return 0;
+}
+
+/*
+ * Return 1 in case of valid os_info_entry, otherwise 0
+ * Make sure that the entire os_info structure is checked first with os_info_check().
+ */
+static inline int os_info_entry_is_valid(const struct os_info_entry *entry)
+{
+	return (entry &&
+		entry->addr &&
+		entry->size &&
+		page_is_valid(entry->addr) &&
+		entry->csum == csum_partial((void *)entry->addr, entry->size, 0));
+}
+
+#endif /* OS_INFO_H */

include/boot/page.h

@@ -0,0 +1,15 @@
+/*
+ * Page related definitions and functions.
+ *
+ * Copyright IBM Corp. 2023
+ *
+ * s390-tools is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#ifndef BOOT_PAGE_H
+#define BOOT_PAGE_H
+#include "lib/zt_common.h"
+
+#define PAGE_SIZE		_AC(4096, UL)
+#endif

include/boot/psw.h

@@ -0,0 +1,31 @@
+/*
+ * Program Status Word related definitions and functions.
+ *
+ * Copyright IBM Corp. 2023
+ *
+ * s390-tools is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#ifndef BOOT_PSW_H
+#define BOOT_PSW_H
+
+#include "lib/zt_common.h"
+
+#define PSW32_ADDR_MASK   _AC(0x000000007fffffff, UL)
+#define PSW_MASK_BA	  _AC(0x0000000080000000, UL)
+#define PSW_MASK_EA	  _AC(0x0000000100000000, UL)
+#define PSW_MASK_BIT_12	  _AC(0x0008000000000000, UL)
+#define PSW_LOAD	  _AC(0x0008000080000000, UL)
+#define PSW_DISABLED_WAIT _AC(0x000a000000000000, UL)
+
+#ifndef __ASSEMBLER__
+#include <stdint.h>
+
+struct psw_t {
+	uint64_t mask;
+	uint64_t addr;
+} __aligned(8);
+
+#endif
+#endif

include/boot/s390.h

@@ -1,7 +1,8 @@
 /*
  * s390 related definitions and functions.
+ * Should only be used for code targeting s390 (bootloader code)
  *
- * Copyright IBM Corp. 2013, 2020
+ * Copyright IBM Corp. 2013, 2023
  *
  * s390-tools is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
@@ -12,29 +13,23 @@
 
 #include "lib/zt_common.h"
 #include "boot/sigp.h"
+#include "boot/psw.h"
+#include "boot/page.h"
 
 #define __LC_IPLDEV		0x0c6c
 #define __LC_OS_INFO		0x0e18
 
 #define LOWCORE_SIZE		_AC(0x2000, UL)
 
-#define PAGE_SIZE		_AC(4096, UL)
-
 /* Minimum size of a stack frame in bytes */
 #define STACK_FRAME_OVERHEAD	_AC(160, U)
 
 /* Facilities */
+#define DFLTCC_FACILITY		_AC(151, U)
 #define UNPACK_FACILITY		_AC(161, U)
 
-#define PSW32_ADDR_MASK   _AC(0x000000007fffffff, UL)
-#define PSW_MASK_BA	  _AC(0x0000000080000000, UL)
-#define PSW_MASK_EA	  _AC(0x0000000100000000, UL)
-#define PSW_MASK_BIT_12	  _AC(0x0008000000000000, UL)
-#define PSW_LOAD	  _AC(0x0008000080000000, UL)
-#define PSW_DISABLED_WAIT _AC(0x000a000000000000, UL)
-
-
 #ifndef __ASSEMBLER__
+#include <stdint.h>
 
 /*
  * Helper macro for exception table entries
@@ -46,18 +41,6 @@
 	".long	(" #_target ")\n"	\
 	".previous\n"
 
-struct psw_t {
-	uint64_t mask;
-	uint64_t addr;
-} __aligned(8);
-
-struct psw32_t {
-	uint32_t mask;
-	uint32_t addr;
-} __aligned(8);
-
-void load_wait_psw(uint64_t, struct psw_t *);
-
 struct subchannel_id {
 	uint32_t cssid:8;
 	uint32_t:4;
@@ -303,18 +286,21 @@ static __always_inline void __ctl_set_bit(unsigned int cr, unsigned int bit)
  * DIAG 308 support
  */
 enum diag308_subcode {
-	DIAG308_REL_HSA	  = 2,
-	DIAG308_IPL	  = 3,
-	DIAG308_DUMP	  = 4,
-	DIAG308_SET	  = 5,
-	DIAG308_STORE	  = 6,
+	DIAG308_CLEAR_RESET = 0,
+	DIAG308_LOAD_NORMAL_RESET = 1,
+	DIAG308_REL_HSA = 2,
+	DIAG308_LOAD_CLEAR = 3,
+	DIAG308_LOAD_NORMAL_DUMP = 4,
+	DIAG308_SET = 5,
+	DIAG308_STORE = 6,
+	DIAG308_LOAD_NORMAL = 7,
 	DIAG308_SET_PV	  = 8,
 	DIAG308_UNPACK_PV = 10,
 };
 
 enum diag308_rc {
 	DIAG308_RC_OK	      = 0x0001,
-	DIAG308_RC_NO_CONF    = 0x0102,
+	DIAG308_RC_NOCONFIG   = 0x0102,
 };
 
 static __always_inline unsigned long diag308(unsigned long subcode, void *addr)

include/dump/s390_dump.h

@@ -0,0 +1,134 @@
+/*
+ * s390 related definitions and functions.
+ *
+ * Copyright IBM Corp. 2013, 2023
+ *
+ * s390-tools is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#ifndef S390_DUMP_H
+#define S390_DUMP_H
+
+#include <stdint.h>
+
+#include "boot/page.h"
+#include "lib/zt_common.h"
+
+/*
+ * S390 dump format defines
+ */
+#define DF_S390_MAGIC		0xa8190173618f23fdULL
+#define DF_S390_MAGIC_EXT	0xa8190173618f23feULL
+#define DF_S390_HDR_SIZE	0x1000
+#define DF_S390_EM_SIZE		16
+#define DF_S390_EM_MAGIC	0x44554d505f454e44ULL
+#define DF_S390_EM_STR		"DUMP_END"
+#define DF_S390_CPU_MAX		512
+#define DF_S390_MAGIC_BLK_ECKD	3
+
+/*
+ * Architecture of dumped system
+ */
+enum df_s390_arch {
+	DF_S390_ARCH_32	= 1,
+	DF_S390_ARCH_64	= 2,
+};
+
+/*
+ * zipl parameters passed at tail of dump tools
+ */
+struct stage2dump_parm_tail {
+	char		reserved[6];
+	uint8_t		no_compress;
+	uint8_t		mvdump_force;
+	uint64_t	mem_upper_limit;
+} __packed;
+
+/*
+ * s390 dump header format
+ */
+struct df_s390_hdr {
+	uint64_t	magic;				/* 0x000 */
+	uint32_t	version;			/* 0x008 */
+	uint32_t	hdr_size;			/* 0x00c */
+	uint32_t	dump_level;			/* 0x010 */
+	uint32_t	page_size;			/* 0x014 */
+	uint64_t	mem_size;			/* 0x018 */
+	uint64_t	mem_start;			/* 0x020 */
+	uint64_t	mem_end;			/* 0x028 */
+	uint32_t	num_pages;			/* 0x030 */
+	uint32_t	pad;				/* 0x034 */
+	uint64_t	tod;				/* 0x038 */
+	uint64_t	cpu_id;				/* 0x040 */
+	uint32_t	arch;				/* 0x048 */
+	uint32_t	volnr;				/* 0x04c */
+	uint32_t	build_arch;			/* 0x050 */
+	uint64_t	mem_size_real;			/* 0x054 */
+	uint8_t		mvdump;				/* 0x05c */
+	uint16_t	cpu_cnt;			/* 0x05d */
+	uint16_t	real_cpu_cnt;			/* 0x05f */
+	uint8_t		zlib_version_s390;		/* 0x061 */
+	uint32_t	zlib_entry_size;		/* 0x062 */
+	uint8_t		end_pad1[0x200 - 0x066];	/* 0x066 */
+	uint64_t	mvdump_sign;			/* 0x200 */
+	uint64_t	mvdump_zipl_time;		/* 0x208 */
+	uint8_t		end_pad2[0x800 - 0x210];	/* 0x210 */
+	uint32_t	lc_vec[DF_S390_CPU_MAX];	/* 0x800 */
+} __packed __aligned(16);
+
+/*
+ *  End marker: Should be at the end of every valid s390 crash dump
+ */
+struct df_s390_em {
+	union {
+		uint64_t magic;
+		char str[8];
+	};
+	uint64_t tod;
+} __packed __aligned(16);
+
+/*
+ * Dump segment header
+ */
+struct df_s390_dump_segm_hdr {
+	union {
+		struct {
+			uint64_t start;				/* 0x000 */
+			uint64_t len;				/* 0x008 */
+			uint64_t stop_marker;			/* 0x010 */
+			/* Size in blocks of compressed dump segment written to disk */
+			uint32_t size_on_disk;			/* 0x018 */
+			uint8_t  reserved_pad[0x30 - 0x1c];	/* 0x01c */
+			/*
+			 * Number of compressed entries in this dump segment (up to
+			 * 1011 entries)
+			 */
+			uint32_t entry_count;			/* 0x030 */
+			/*
+			 * Offsets in blocks to compressed entries written to disk
+			 * from the start of the dump segment.
+			 * High-order bit is set if the entry has been written
+			 * uncompressed.
+			 */
+			uint32_t entry_offset[];		/* 0x034 */
+		} __packed;
+		uint8_t padding[PAGE_SIZE];
+	};
+};
+
+/* Data compression granularity (size of input data chunk for zlib deflate) */
+#define DUMP_SEGM_ZLIB_ENTSIZE   (1 * MIB)
+/* Maximum number of compressed entries in one dump segment */
+#define DUMP_SEGM_ZLIB_MAXENTS   ((sizeof(struct df_s390_dump_segm_hdr) \
+				   - offsetof(struct df_s390_dump_segm_hdr, entry_offset)) \
+				   / sizeof(uint32_t))
+/*
+ * Maximum length of compressed dump segment considering the size of
+ * a single input chunk
+ */
+#define DUMP_SEGM_ZLIB_MAXLEN    (DUMP_SEGM_ZLIB_MAXENTS * DUMP_SEGM_ZLIB_ENTSIZE)
+/* Bitmask to mark uncompressed chunks */
+#define DUMP_SEGM_ENTRY_UNCOMPRESSED    0x80000000
+
+#endif /* S390_DUMP_H */

include/lib/ap.h

@@ -89,6 +89,7 @@ void ap_list_remove_all(struct util_list *list);
 /* Lock Functions */
 int ap_get_lock(void);
 int ap_get_lock_callout(void);
+int ap_try_lock_callout(void);
 int ap_release_lock(void);
 int ap_release_lock_callout(void);
 

include/lib/util_lockfile.h

@@ -23,4 +23,6 @@ int util_lockfile_parent_lock(char *lockfile, int retries);
 int util_lockfile_release(char *lockfile);
 int util_lockfile_parent_release(char *lockfile);
 
+int util_lockfile_peek_owner(char *lockfile, int *pid);
+
 #endif /** LIB_UTIL_LOCKFILE_H @} */

include/libpv/se-hdr.h

@@ -13,7 +13,7 @@
 
 #include <openssl/sha.h>
 
-#include "boot/s390.h"
+#include "boot/psw.h"
 #include "libpv/crypto.h"
 #include "libpv/macros.h"
 

iucvterm/Makefile

@@ -13,8 +13,7 @@ RECURSIVE_TARGETS = all-recursive install-recursive clean-recursive \
 
 
 all: all-recursive
-check: check-recursive
-install: all install-recursive
+install: install-recursive
 clean: clean-recursive
 
 

libap/ap.c

@@ -722,6 +722,34 @@ int ap_get_lock_callout(void)
 	return util_lockfile_parent_lock(AP_LOCKFILE, AP_LOCK_RETRIES);
 }
 
+/**
+ * Attempt to acquire the ap config lock using the Parent Process ID without
+ * waiting/retries.  Detect if the attempt was rejected because the lock is
+ * already held by the Parent Process ID.
+ *
+ * @retval         0          Lock acquired on behalf of parent process
+ * @retval         1          Lock not obtained, already held by parent
+ * @retval         != 0       Lock was not obtained, other error
+ */
+int ap_try_lock_callout(void)
+{
+	int pid, ppid, rc;
+
+	if (util_lockfile_parent_lock(AP_LOCKFILE, 0)) {
+		/* Lock is already held, let's peek at the owner */
+		ppid = getppid();
+		rc = util_lockfile_peek_owner(AP_LOCKFILE, &pid);
+		if (rc || pid != ppid) {
+			/* We didn't get the lock, unknown or other owner */
+			return 2;
+		}
+		/* Signify that the lock is already held by the caller */
+		return 1;
+	}
+
+	return 0;
+}
+
 /**
  * Release the ap config lock
  *

libekmfweb/Makefile

@@ -55,7 +55,7 @@ check-dep-libekmfweb: detect-openssl-version.dep
 		"detect-openssl-version.dep", \
 		"openssl-devel version >= 1.1.1", \
 		"HAVE_OPENSSL=0", \
-		-I. -lcrypto -DOPENSSL_SUPPRESS_DEPRECATED)
+		-I. `$(PKG_CONFIG) --cflags --libs libcrypto` -DOPENSSL_SUPPRESS_DEPRECATED)
 	$(call check_dep, \
 		"libekmfweb", \
 		"json-c/json.h", \
@@ -66,7 +66,7 @@ check-dep-libekmfweb: detect-openssl-version.dep
 		"curl/curl.h", \
 		"libcurl-devel", \
 		"HAVE_LIBCURL=0" \
-		`$(CURL_CONFIG) --cflags` `$(CURL_CONFIG) --libs`)
+		`$(PKG_CONFIG) --cflags --libs libcurl`)
 	$(CURL_CONFIG) --ssl-backends | grep OpenSSL >/dev/null 2>&1 || { echo "Error: libcurl is not built with the OpenSSL backend"; exit 1; }
 	touch check-dep-libekmfweb
 
@@ -85,8 +85,8 @@ ekmfweb.o: check-dep-libekmfweb ekmfweb.c utilities.h cca.h $(rootdir)include/ek
 utilities.o: check-dep-libekmfweb utilities.c utilities.h $(rootdir)include/ekmfweb/ekmfweb.h
 cca.o: check-dep-libekmfweb cca.c cca.h utilities.h $(rootdir)include/ekmfweb/ekmfweb.h
 
-libekmfweb.so.$(VERSION): ALL_CFLAGS += -fPIC `$(CURL_CONFIG) --cflags`
-libekmfweb.so.$(VERSION): LDLIBS = -ljson-c -lcrypto -lssl `$(CURL_CONFIG) --libs` -ldl
+libekmfweb.so.$(VERSION): ALL_CFLAGS += -fPIC `$(PKG_CONFIG) --cflags json-c libcurl libcrypto libssl`
+libekmfweb.so.$(VERSION): LDLIBS = `$(PKG_CONFIG) --libs json-c libcurl libcrypto libssl` -ldl
 libekmfweb.so.$(VERSION): ALL_LDFLAGS += -shared -Wl,--version-script=libekmfweb.map \
 	-Wl,-z,defs,-Bsymbolic -Wl,-soname,libekmfweb.so.$(VERM)
 libekmfweb.so.$(VERSION): ekmfweb.o utilities.o cca.o $(libs)
@@ -98,7 +98,7 @@ install-libekmfweb.so.$(VERSION): libekmfweb.so.$(VERSION)
 	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 755 -T libekmfweb.so.$(VERSION) $(DESTDIR)$(SOINSTALLDIR)/libekmfweb.so.$(VERSION)
 	ln -srf $(DESTDIR)$(SOINSTALLDIR)/libekmfweb.so.$(VERSION) $(DESTDIR)$(SOINSTALLDIR)/libekmfweb.so.$(VERM)
 	ln -srf $(DESTDIR)$(SOINSTALLDIR)/libekmfweb.so.$(VERSION) $(DESTDIR)$(SOINSTALLDIR)/libekmfweb.so
-	$(INSTALL) -d -m 770 $(DESTDIR)$(USRINCLUDEDIR)/ekmfweb
+	$(INSTALL) -d -m 755 $(DESTDIR)$(USRINCLUDEDIR)/ekmfweb
 	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 $(rootdir)include/ekmfweb/ekmfweb.h $(DESTDIR)$(USRINCLUDEDIR)/ekmfweb
 
 install: all $(INSTALL_TARGETS)

libkmipclient/Makefile

@@ -51,7 +51,6 @@ detect-openssl-version.dep:
 	mv $(TMPFILE) $@
 
 CURL_CONFIG ?= curl-config
-XML2_CONFIG ?= xml2-config
 
 check-dep-libkmipclient: detect-openssl-version.dep
 	$(call check_dep, \
@@ -59,7 +58,7 @@ check-dep-libkmipclient: detect-openssl-version.dep
 		"detect-openssl-version.dep", \
 		"openssl-devel version >= 1.1.1", \
 		"HAVE_OPENSSL=0", \
-		-I. -lcrypto -DOPENSSL_SUPPRESS_DEPRECATED)
+		-I. `$(PKG_CONFIG) --cflags --libs libcrypto` -DOPENSSL_SUPPRESS_DEPRECATED)
 	$(call check_dep, \
 		"libkmipclient", \
 		"json-c/json.h", \
@@ -70,13 +69,13 @@ check-dep-libkmipclient: detect-openssl-version.dep
 		"libxml/tree.h", \
 		"libxml2-devel", \
 		"HAVE_LIBXML2=0", \
-		`$(XML2_CONFIG) --cflags` `$(XML2_CONFIG) --libs`)
+		`$(PKG_CONFIG) --cflags --libs libxml-2.0`)
 	$(call check_dep, \
 		"libkmipclient", \
 		"curl/curl.h", \
 		"libcurl-devel", \
 		"HAVE_LIBCURL=0" \
-		`$(CURL_CONFIG) --cflags` `$(CURL_CONFIG) --libs`)
+		`$(PKG_CONFIG) --cflags --libs libcurl`)
 	$(CURL_CONFIG) --ssl-backends | grep OpenSSL >/dev/null 2>&1 || { echo "Error: libcurl is not built with the OpenSSL backend"; exit 1; }
 	touch check-dep-libkmipclient
 
@@ -107,8 +106,8 @@ tls.o: check-dep-libkmipclient tls.c kmip.h utils.h $(rootdir)include/kmipclient
 names.o: check-dep-libkmipclient names.c names.h utils.h $(rootdir)include/kmipclient/kmipclient.h
 utils.o: check-dep-libkmipclient utils.c names.h utils.h $(rootdir)include/kmipclient/kmipclient.h
 
-libkmipclient.so.$(VERSION): ALL_CFLAGS += -fPIC `$(XML2_CONFIG) --cflags` `$(CURL_CONFIG) --cflags`
-libkmipclient.so.$(VERSION): LDLIBS = -ljson-c -lcrypto -lssl `$(XML2_CONFIG) --libs` `$(CURL_CONFIG) --libs`
+libkmipclient.so.$(VERSION): ALL_CFLAGS += -fPIC `$(PKG_CONFIG) --cflags json-c libcrypto libssl libxml-2.0 libcurl`
+libkmipclient.so.$(VERSION): LDLIBS = `$(PKG_CONFIG) --libs json-c libcrypto libssl libxml-2.0 libcurl`
 libkmipclient.so.$(VERSION): ALL_LDFLAGS += -shared -Wl,--version-script=libkmipclient.map \
 	-Wl,-z,defs,-Bsymbolic -Wl,-soname,libkmipclient.so.$(VERM)
 libkmipclient.so.$(VERSION): kmip.o request.o response.o attribute.o key.o ttlv.o json.o \
@@ -121,7 +120,7 @@ install-libkmipclient.so.$(VERSION): libkmipclient.so.$(VERSION)
 	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 755 -T libkmipclient.so.$(VERSION) $(DESTDIR)$(SOINSTALLDIR)/libkmipclient.so.$(VERSION)
 	ln -srf $(DESTDIR)$(SOINSTALLDIR)/libkmipclient.so.$(VERSION) $(DESTDIR)$(SOINSTALLDIR)/libkmipclient.so.$(VERM)
 	ln -srf $(DESTDIR)$(SOINSTALLDIR)/libkmipclient.so.$(VERSION) $(DESTDIR)$(SOINSTALLDIR)/libkmipclient.so
-	$(INSTALL) -d -m 770 $(DESTDIR)$(USRINCLUDEDIR)/kmipclient
+	$(INSTALL) -d -m 755 $(DESTDIR)$(USRINCLUDEDIR)/kmipclient
 	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 $(rootdir)include/kmipclient/kmipclient.h $(DESTDIR)$(USRINCLUDEDIR)/kmipclient
 
 install: all $(INSTALL_TARGETS)

libkmipclient/kmip.h

@@ -16,6 +16,7 @@
 #include <openssl/ssl.h>
 
 #include <json-c/json.h>
+#include <libxml/parser.h>
 #include <libxml/tree.h>
 #include <curl/curl.h>
 

libpv/Makefile

@@ -21,8 +21,7 @@ WARNINGS := -Wall -Wextra -Wshadow \
 	    -Wno-unused-function -Wno-unused-parameter -Wno-unused-variable \
 	    $(NULL)
 
-ALL_CFLAGS += -std=gnu11 \
-	      -DOPENSSL_API_COMPAT=0x10101000L \
+ALL_CFLAGS += -DOPENSSL_API_COMPAT=0x10101000L \
 	      $(GLIB2_CFLAGS) \
 	      $(LIBCRYPTO_CFLAGS) \
 	      $(LIBCURL_CFLAGS) \

libutil/util_file.c

@@ -311,13 +311,13 @@ int util_file_read_i(int *val, int base, const char *fmt, ...)
 		return -1;
 	switch (base) {
 	case 8:
-		count = sscanf(buf, "%do", val);
+		count = sscanf(buf, "%o", val);
 		break;
 	case 10:
-		count = sscanf(buf, "%dd", val);
+		count = sscanf(buf, "%d", val);
 		break;
 	case 16:
-		count = sscanf(buf, "%dx", val);
+		count = sscanf(buf, "%x", val);
 		break;
 	default:
 		util_panic("Invalid base: %d\n", base);
@@ -425,13 +425,13 @@ int util_file_read_ui(unsigned int *val, int base, const char *fmt, ...)
 		return -1;
 	switch (base) {
 	case 8:
-		count = sscanf(buf, "%uo", val);
+		count = sscanf(buf, "%o", val);
 		break;
 	case 10:
-		count = sscanf(buf, "%uu", val);
+		count = sscanf(buf, "%u", val);
 		break;
 	case 16:
-		count = sscanf(buf, "%ux", val);
+		count = sscanf(buf, "%x", val);
 		break;
 	default:
 		util_panic("Invalid base: %d\n", base);

libutil/util_lockfile.c

@@ -299,3 +299,35 @@ int util_lockfile_parent_release(char *lockfile)
 {
 	return do_lockfile_release(lockfile, getppid());
 }
+
+/**
+ * Return the pid that owns the specified lockfile.
+ *
+ * @param[in]      lockfile   Path to the lock file
+ * @param[in,out]  pid        Buffer to place owning pid
+ *
+ * @retval         0          pid provided in buffer
+ * @retval         !=0        Error, no pid provided
+ */
+int util_lockfile_peek_owner(char *lockfile, int *pid)
+{
+	char buf[BUFSIZE];
+	int fd, len;
+
+	if (!lockfile || !pid)
+		return UTIL_LOCKFILE_ERR;
+
+	/* Open lockfile, read the owning pid if it exists */
+	fd = open(lockfile, O_RDONLY);
+	if (fd < 0)
+		return UTIL_LOCKFILE_ERR;
+
+	len = read(fd, buf, sizeof(buf));
+	close(fd);
+	if (len <= 0)
+		return UTIL_LOCKFILE_ERR;
+	buf[len] = 0;
+	*pid = atoi(buf);
+
+	return 0;
+}

osasnmpd/ibmOSAMib.h

@@ -16,7 +16,7 @@
 
 /* we may use header_generic and header_simple_table from the util_funcs module */
 
-config_require(util_funcs)
+config_require(util_funcs);
 
 
 /* function prototypes */

pvattest/Makefile

@@ -9,7 +9,7 @@ RECURSIVE_TARGETS := all-recursive clean-recursive install-recursive
 
 all: all-recursive
 
-install: all install-recursive
+install: install-recursive
 
 clean: clean-recursive
 

pvattest/man/pvattest-verify.1

@@ -24,12 +24,27 @@ Show help options
 \fBFILE\fP specifies the attestation result as input.
 .TP
 .B
+\fB-o\fP, \fB--ouput\fP=\fBFILE\fP
+\fBFILE\fP specifies the output for the verification result.
+.TP
+.B
 \fB--hdr\fP=\fBFILE\fP
 Specify the header of the guest image. Exactly one is required.
 .TP
 .B
 \fB-a\fP, \fB--arpk\fP=\fBFILE\fP
 Use \fBFILE\fP to specify the GCM-AES256 key to decrypt the attestation request. Delete this key after verification.
+.TP
+.B
+\fB--format\fP=\fByaml\fP
+Define the output format.
+Default value: 'yaml'
+
+Possible values:
+.RS 4
+- \fByaml\fP: Use YAML format
+.RE
+
 .TP
 .B
 \fB-V\fP, \fB--verbose\fP

pvattest/src/Makefile

@@ -35,8 +35,7 @@ LIBCRYPTO_LIBS := $(shell $(PKG_CONFIG) --silence-errors --libs libcrypto)
 LIBCURL_CFLAGS := $(shell $(PKG_CONFIG) --silence-errors --cflags libcurl)
 LIBCURL_LIBS := $(shell $(PKG_CONFIG) --silence-errors --libs libcurl)
 
-ALL_CFLAGS += -std=gnu11 \
-	      -DPKGDATADIR=$(PKGDATADIR) \
+ALL_CFLAGS += -DPKGDATADIR=$(PKGDATADIR) \
 	      -DOPENSSL_API_COMPAT=0x10101000L \
 	      $(GLIB2_CFLAGS) \
 	      $(LIBCRYPTO_CFLAGS) \

pvattest/src/argparse.c

@@ -49,8 +49,10 @@ static pvattest_config_t pvattest_config = {
 	},
 	.verify = {
 		.input_path = NULL,
+		.output_path = NULL,
 		.hdr_path = NULL,
 		.arp_key_in_path = NULL,
+		.output_fmt = VERIFY_FMT_YAML,
 	},
 };
 typedef gboolean (*verify_options_fn_t)(GError **);
@@ -329,6 +331,15 @@ static gboolean hex_str_toull(const char *nptr, uint64_t *dst, GError **error)
 		.description = "Use FILE to specify the user data.\n", .arg_description = "FILE", \
 	}
 
+#define _entry__verify_format(__indent)                                                            \
+	{                                                                                          \
+		.long_name = "format", .short_name = 0, .flags = G_OPTION_FLAG_NONE,               \
+		.arg = G_OPTION_ARG_CALLBACK, .arg_data = &set_verify_output_format,               \
+		.description = "Define the output format.\n" __indent                              \
+			       "Defaults to 'yaml'. (possible values: 'yaml')\n",                  \
+		.arg_description = "FORMAT",                                                       \
+	}
+
 static gboolean increase_log_lvl(G_GNUC_UNUSED const char *option_name,
 				 G_GNUC_UNUSED const char *value, G_GNUC_UNUSED void *data,
 				 G_GNUC_UNUSED GError **error)
@@ -337,6 +348,20 @@ static gboolean increase_log_lvl(G_GNUC_UNUSED const char *option_name,
 	return TRUE;
 }
 
+static gboolean set_verify_output_format(const char *option_name, const char *value,
+					 G_GNUC_UNUSED void *data, GError **error)
+{
+	if (!g_strcmp0(value, "yaml")) {
+		pvattest_config.verify.output_fmt = VERIFY_FMT_YAML;
+	} else {
+		g_set_error(error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED,
+			    _("Found value '%s' for option '%s', but only 'yaml' is allowed."),
+			    value, option_name);
+		return FALSE;
+	}
+	return TRUE;
+}
+
 static gboolean create_set_paf(G_GNUC_UNUSED const char *option_name, const char *value,
 			       G_GNUC_UNUSED void *data, GError **error)
 {
@@ -445,13 +470,16 @@ static gboolean verify_perform(GError **error)
 }
 
 /************************* VERIFY OPTIONS ************************************/
-#define verify_indent "                       "
+#define verify_indent "                        "
 
 static GOptionEntry verify_options[] = {
 	_entry_input(&pvattest_config.verify.input_path, "attestation result", verify_indent),
+	_entry_output(&pvattest_config.verify.output_path,
+		      "verification result.\n" verify_indent "(optional)", verify_indent),
 	_entry_guest_hdr(&pvattest_config.verify.hdr_path, verify_indent),
 	_entry_att_prot_key_load(&pvattest_config.verify.arp_key_in_path, verify_indent),
 	_entry_verbose(verify_indent),
+	_entry__verify_format(verify_indent),
 	{ NULL },
 };
 
@@ -631,6 +659,7 @@ static void pvattest_parse_clear_verify_config(pvattest_verify_config_t *config)
 	if (!config)
 		return;
 	g_free(config->input_path);
+	g_free(config->output_path);
 	g_free(config->hdr_path);
 	g_free(config->arp_key_in_path);
 }

pvattest/src/argparse.h

@@ -58,8 +58,15 @@ typedef struct {
 	char *user_data_path; /* default NULL */
 } pvattest_perform_config_t;
 
+enum verify_output_format {
+	VERIFY_FMT_HUMAN,
+	VERIFY_FMT_YAML,
+};
+
 typedef struct {
 	char *input_path;
+	char *output_path;
+	enum verify_output_format output_fmt;
 	char *hdr_path;
 	char *arp_key_in_path;
 } pvattest_verify_config_t;

pvattest/src/exchange_format.c

@@ -455,8 +455,7 @@ static void print_entry(const char *name, GBytes *data, const gboolean print_dat
 	fprintf(stream, _("%s (%#lx bytes)"), name, g_bytes_get_size(data));
 	if (print_data) {
 		fprintf(stream, ":\n");
-		pvattest_hexdump(g_bytes_get_data(data, NULL), g_bytes_get_size(data), 16, "      ",
-				 stream);
+		pvattest_hexdump(stream, data, 16, "      ", TRUE);
 	}
 	fprintf(stream, "\n");
 }

pvattest/src/log.c

@@ -159,24 +159,47 @@ void pvattest_log_bytes(const void *data, size_t size, size_t width, const char
 	g_log(PVATTEST_BYTES_LOG_DOMAIN, log_lvl, "\n");
 }
 
-void pvattest_hexdump(const void *data, size_t size, size_t width, const char *prefix, FILE *stream)
+int pvattest_hexdump(FILE *stream, GBytes *bytes, const size_t width, const char *prefix,
+		     const gboolean beautify)
 {
-	const uint8_t *data_b = data;
+	const uint8_t *data;
+	size_t size;
 
-	pv_wrapped_g_assert(data);
+	pv_wrapped_g_assert(bytes);
 	pv_wrapped_g_assert(stream);
 
-	fprintf(stream, "%s0x0000  ", prefix);
+	data = g_bytes_get_data(bytes, &size);
+	pv_wrapped_g_assert(data);
+
+	if (beautify) {
+		if (fprintf(stream, "%s0x0000  ", prefix) < 0)
+			return -1;
+	} else {
+		if (fprintf(stream, "%s", prefix) < 0)
+			return -1;
+	}
 	for (size_t i = 0; i < size; i++) {
-		fprintf(stream, "%02x", data_b[i]);
-		if (i % 2 == 1)
-			fprintf(stream, " ");
+		if (fprintf(stream, "%02x", data[i]) < 0)
+			return -1;
+		if (i % 2 == 1 && beautify) {
+			if (fprintf(stream, " ") < 0)
+				return -1;
+		}
 		if (i == size - 1)
 			break;
-		if (i % width == width - 1)
-			fprintf(stream, "\n%s0x%04lx  ", prefix, i + 1);
+		if (width == 0)
+			continue;
+		if (i % width == width - 1) {
+			if (beautify) {
+				if (fprintf(stream, "\n%s0x%04lx  ", prefix, i + 1) < 0)
+					return -1;
+			} else {
+				if (fprintf(stream, "\n%s", prefix) < 0)
+					return -1;
+			}
+		}
 	}
-	fprintf(stream, "\n");
+	return 0;
 }
 
 void pvattest_log_GError(const char *info, GError *error)

pvattest/src/log.h

@@ -60,8 +60,8 @@ void pvattest_log_plain_logger(const char *log_domain, GLogLevelFlags level, con
 	}
 void pvattest_log_bytes(const void *data, size_t size, size_t width, const char *prefix,
 			gboolean beautify, GLogLevelFlags log_lvl) PV_NONNULL(1);
-void pvattest_hexdump(const void *data, size_t size, size_t width, const char *prefix, FILE *stream)
-	PV_NONNULL(1, 5);
+int pvattest_hexdump(FILE *stream, GBytes *bytes, const size_t width, const char *prefix,
+		     const gboolean beautify) PV_NONNULL(1, 2);
 void pvattest_log_GError(const char *info, GError *error) PV_NONNULL(1);
 
 #endif /* PVATTEST_LOG_H */

pvattest/src/pvattest.c

@@ -257,14 +257,63 @@ err_exit:
 }
 #endif /* PVATTEST_COMPILE_PERFORM */
 
+static int fprint_verify_result(FILE *stream, const enum verify_output_format fmt,
+				GBytes *config_uid, GBytes *additional_data)
+{
+	switch (fmt) {
+	case VERIFY_FMT_HUMAN:
+		if (fprintf(stream, _("Attestation measurement verified\n")) < 0)
+			return -1;
+		if (fprintf(stream, _("Config UID:\n")) < 0)
+			return -1;
+		if (pvattest_hexdump(stream, config_uid, 0x10L, "0x", FALSE) < 0)
+			return -1;
+		if (fprintf(stream, _("\n")) < 0)
+			return -1;
+
+		if (additional_data) {
+			if (fprintf(stream, _("Additional Data:\n")) < 0)
+				return -1;
+			if (pvattest_hexdump(stream, additional_data, 0x60L, "0x", FALSE) < 0)
+				return -1;
+			if (fprintf(stream, _("\n")) < 0)
+				return -1;
+		}
+		break;
+	case VERIFY_FMT_YAML:
+		if (fprintf(stream, "cuid: ") < 0)
+			return -1;
+		if (pvattest_hexdump(stream, config_uid, 0L, "'0x", FALSE) < 0)
+			return -1;
+		if (fprintf(stream, _("'\n")) < 0)
+			return -1;
+
+		if (additional_data) {
+			if (fprintf(stream, "add: ") < 0)
+				return -1;
+
+			if (pvattest_hexdump(stream, additional_data, 0x0L, "'0x", FALSE) < 0)
+				return -1;
+			if (fprintf(stream, _("'\n")) < 0)
+				return -1;
+		}
+		break;
+	default:
+		g_assert_not_reached();
+		break;
+	}
+	return 0;
+}
+
 #define __PVATTEST_VERIFY_ERROR_MSG _("Attestation measurement verification failed")
-static int do_verify(pvattest_verify_config_t *verify_config)
+static int do_verify(const pvattest_verify_config_t *verify_config, const int appl_log_lvl)
 {
 	g_autoptr(GBytes) user_data = NULL, uv_measurement = NULL, additional_data = NULL,
 			  image_hdr = NULL, calc_measurement = NULL, config_uid = NULL,
 			  meas_key = NULL, arp_key = NULL, nonce = NULL, serialized_arcb = NULL;
 	g_autofree att_meas_ctx_t *measurement_hdr = NULL;
 	g_autoptr(exchange_format_ctx_t) input_ctx = NULL;
+	const char *err_prefix = __PVATTEST_VERIFY_ERROR_MSG;
 	g_autoptr(GError) error = NULL;
 	gboolean rc;
 
@@ -322,21 +371,37 @@ static int do_verify(pvattest_verify_config_t *verify_config)
 		return PVATTEST_EXIT_MEASURE_NOT_VERIFIED;
 	}
 
-	pvattest_log_info(_("Attestation measurement verified"));
-	pvattest_log_info(_("Config UID:"));
-	pvattest_log_bytes(g_bytes_get_data(config_uid, NULL), g_bytes_get_size(config_uid), 16L,
-			   "", FALSE, PVATTEST_LOG_LVL_INFO);
+	/* Write human-readable output to stdout */
+	if (appl_log_lvl >= PVATTEST_LOG_LVL_INFO) {
+		if (fprint_verify_result(stdout, VERIFY_FMT_HUMAN, config_uid, additional_data) <
+		    0) {
+			g_set_error(&error, PV_GLIB_HELPER_ERROR, PV_GLIB_HELPER_FILE_ERROR,
+				    "stdout: %s", g_strerror(errno));
+			err_prefix = "Failed to write output";
+			goto err_exit;
+		}
+	}
 
-	if (additional_data) {
-		pvattest_log_info(_("\nAdditional Data:"));
-		pvattest_log_bytes(g_bytes_get_data(additional_data, NULL),
-				   g_bytes_get_size(additional_data), 16L, "", FALSE,
-				   PVATTEST_LOG_LVL_INFO);
+	/* Write to file */
+	if (verify_config->output_path) {
+		g_autoptr(FILE) output = pv_file_open(verify_config->output_path, "wx", &error);
+
+		if (!output) {
+			err_prefix = "Failed to write output";
+			goto err_exit;
+		}
+		if (fprint_verify_result(output, verify_config->output_fmt, config_uid,
+					 additional_data) < 0) {
+			g_set_error(&error, PV_GLIB_HELPER_ERROR, PV_GLIB_HELPER_FILE_ERROR,
+				    "'%s': %s", verify_config->output_path, g_strerror(errno));
+			err_prefix = "Failed to write output";
+			goto err_exit;
+		}
 	}
 	return EXIT_SUCCESS;
 
 err_exit:
-	pvattest_log_GError(__PVATTEST_VERIFY_ERROR_MSG, error);
+	pvattest_log_GError(err_prefix, error);
 	return EXIT_FAILURE;
 }
 
@@ -389,7 +454,7 @@ int main(int argc, char *argv[])
 		break;
 #endif /* PVATTEST_COMPILE_PERFORM */
 	case PVATTEST_SUBC_VERIFY:
-		rc = do_verify(&config->verify);
+		rc = do_verify(&config->verify, appl_log_lvl);
 		break;
 	default:
 		g_return_val_if_reached(EXIT_FAILURE);

rust/.gitignore

@@ -0,0 +1,11 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# These are backup files generated by rustfmt
+*.rs.bk
+
+# Generated during make build can be removed at any point
+.check-dep-pvtools
+.check-cargo

rust/Cargo.toml

@@ -0,0 +1,16 @@
+[workspace]
+members = [
+	"pv",
+	"pv_core",
+	"pvapconfig",
+	"pvsecret",
+	"utils",
+]
+resolver = "2"
+
+[workspace.package]
+edition = "2021"
+license = "MIT"
+
+[profile.release]
+lto = true

rust/Makefile

@@ -0,0 +1,124 @@
+include ../common.mak
+HAVE_CARGO ?= 1
+HAVE_OPENSSL ?= 1
+HAVE_LIBCURL ?= 1
+
+INSTALL_TARGETS := skip-build
+BUILD_TARGETS := skip-build
+PV_BUILD_TARGETS := skip-pv-build
+CARGO_TARGETS :=
+PV_TARGETS :=
+CARGO_TEST_TARGETS :=
+
+ifneq (${HAVE_CARGO},0)
+	CARGO_TARGETS :=
+
+	BUILD_TARGETS = $(CARGO_TARGETS)
+	INSTALL_TARGETS := install-rust-tools install-man
+	CARGO_TEST_TARGETS = $(addsuffix .test, $(CARGO_TARGETS))
+
+ifneq (${HAVE_OPENSSL},0)
+ifneq (${HAVE_LIBCURL},0)
+	PV_TARGETS := pvsecret pvapconfig
+
+	PV_BUILD_TARGETS := $(PV_TARGETS)
+	CARGO_TEST_TARGETS += $(addsuffix .test,pv $(PV_TARGETS))
+endif #LIBCURL
+endif #OPENSSL
+	TEST_TARGETS := $(addsuffix _build,$(CARGO_TEST_TARGETS))
+endif #CARGO
+
+BUILD_TARGETS += $(PV_BUILD_TARGETS)
+
+# build release targets by default
+ifeq ("${D}","0")
+	ALL_CARGOFLAGS += --release
+endif
+
+# the cc crate uses these variables to compile c code. It does not open a shell
+# to call the compiler, so no echo etc. allowed here, just a path to a program
+$(BUILD_TARGETS) $(TEST_TARGETS) rust-test: CC = $(CC_SILENT)
+$(BUILD_TARGETS) $(TEST_TARGETS) rust-test: AR = $(AR_SILENT)
+
+$(PV_TARGETS): .check-dep-pvtools
+$(PV_TARGETS) $(CARGO_TARGETS): .check-cargo .no-cross-compile
+	$(CARGO_BUILD) --bin $@ $(ALL_CARGOFLAGS)
+.PHONY: $(PV_TARGETS) $(CARGO_TARGETS)
+
+$(TEST_TARGETS): ALL_CARGOFLAGS += --no-run
+$(CARGO_TEST_TARGETS) $(TEST_TARGETS): .check-cargo .no-cross-compile
+	$(CARGO_TEST) --package $(basename $@) --all-features $(ALL_CARGOFLAGS)
+.PHONY: $(TEST_TARGETS) $(CARGO_TEST_TARGETS)
+
+skip-build:
+	echo "  SKIP    rust-tools due to unresolved dependencies"
+
+skip-pv-build:
+	echo "  SKIP    rust-pv-tools due to unresolved dependencies"
+
+all: $(BUILD_TARGETS)
+install: $(INSTALL_TARGETS)
+
+print-rust-targets:
+	echo $(BUILD_TARGETS)
+
+clean:
+	$(CARGO_CLEAN) ${ALL_CARGOFLAGS}
+	$(RM) -- .check-dep-pvtools .detect-openssl.dep.c .check-cargo
+
+rust-test: $(CARGO_TEST_TARGETS)
+
+install-rust-tools: $(BUILD_TARGETS)
+	$(INSTALL) -d -m 755 $(DESTDIR)$(USRBINDIR)
+	$(foreach target,$(CARGO_TARGETS),\
+		$(INSTALL) target/release/$(target) $(DESTDIR)$(USRBINDIR);)
+	$(foreach target,$(PV_TARGETS),\
+		$(INSTALL) target/release/$(target) $(DESTDIR)$(USRBINDIR);)
+
+install-man:
+	$(foreach target,$(CARGO_TARGETS),\
+		$(INSTALL) -m 644 $(target)/man/*.1 -t $(DESTDIR)$(MANDIR)/man1;)
+	$(foreach target,$(PV_TARGETS),\
+		$(INSTALL) -m 644 $(target)/man/*.1 -t $(DESTDIR)$(MANDIR)/man1;)
+
+.PHONY: all install clean skip-build install-rust-tools print-rust-targets install-man rust-test
+
+.check-cargo:
+ifeq ($(shell command -v $(CARGO)),)
+	$(call check_dep, \
+		"rust/cargo", \
+		"invalid-incl", \
+		"cargo", \
+		"HAVE_CARGO=0")
+endif
+	touch $@
+
+.no-cross-compile:
+ifneq ($(HOST_ARCH), $(BUILD_ARCH))
+	$(error Cross compiling is not supported for rust code. Specify HAVE_CARGO=0 to disable rust compilation)
+endif
+.PHONY: .no-cross-compile
+
+.detect-openssl.dep.c:
+	echo "#include <openssl/evp.h>" > $@
+	echo "#if OPENSSL_VERSION_NUMBER < 0x10101000L" >> $@
+	echo "  #error openssl version 1.1.1 is required" >> $@
+	echo "#endif" >> $@
+	echo "static void __attribute__((unused)) test(void) {" >> $@
+	echo "    EVP_MD_CTX *ctx = EVP_MD_CTX_new();" >> $@
+	echo "    EVP_MD_CTX_free(ctx);" >> $@
+	echo "}" >> $@
+
+.check-dep-pvtools: .detect-openssl.dep.c
+	$(call check_dep, \
+		"Rust-pv", \
+		$^, \
+		"openssl-devel / libssl-dev version >= 1.1.1", \
+		"HAVE_OPENSSL=0", \
+		"-I.")
+	$(call check_dep, \
+		"Rust-pv", \
+		"curl/curl.h", \
+		"libcurl-devel", \
+		"HAVE_LIBCURL=0")
+	touch $@

rust/README.md

@@ -0,0 +1,146 @@
+# s390-tools tools written in rust
+
+## Setting up rust development and build environment
+Please refer to the official documentation to set up a working rust environment:
+https://www.rust-lang.org/learn/get-started
+
+## Building rust code
+### s390-tools build system
+If `cargo` is installed  a simple `make` should do the job. Note that,
+compiling rust programs take significantly longer than C code. To closely
+monitor the progress use `make V=1` By default release builds are made.
+
+With `make CARGOFLAGS=<flags>` one can pass additional flags to cargo.
+With `make HAVE_CARGO=0` one can turn of any compilation that requires cargo.
+With `make CARGO=<...>` one can set the cargo binary
+
+### cargo
+If you need to run cargo directly, `cd` to each project you want to build and
+issue your cargo commands. Do **NOT** forget to specify `--release` if you are
+building tools for a release. The s390-tools expect the environment variable
+`S390_TOOLS_RELEASE` to be present at build time. This is the version string the
+rust tools provide.
+
+Tip: You can use `make version` to get the version string.
+
+## Internal Libraries
+* __utils__ _Library for rust tools that bundles common stuff for the 390-tools_
+	* provides a macro to get the `S390_TOOLS_RELEASE` string
+	* provides macros for compile time assertions
+
+* __pv_core__ _Library for pv tools, providing uvdevice access and utilities to send, receive and interpret various UV-calls._
+
+* __pv__ _Library for pv tools, providing uvdevice access, encryption utilities, and utilities for generating UV-request_
+	* requires openssl and libcurl
+	* reexports ann symbols from __pv_core__
+	* if no encryption utilities required, use __pv_core__
+
+## Tools
+* __pvsecret__ _Manage secrets for IBM Secure Execution guests_
+
+## Writing new tools
+We encourage to use Rust for new tools. However, for some use cases it makes
+sense to use C and C is still allowed to be used for a new tool/library.
+Exiting tools may be rewritten in Rust.
+
+### What (third-party) crates can be used for s390-tools?
+A huge list of libraries are made available through Rusts' ecosystem and is one
+of many upsides. However, just like with Coding Style Guidelines, it is
+important to limit the usage of those libraries so that within a project,
+everyone is on the same page and that code written in Rust uses similar
+approaches. It makes it easier for code review and maintainability in general.
+
+The following list of crates should cover a wide variety of use cases. This list
+is a start, but can change over time.
+
+* [anyhow](https://crates.io/crates/anyhow)
+    * Flexible concrete Error type built on std::error::Error
+* [byteorder](https://crates.io/crates/byteorder)
+    * Library for reading/writing numbers in big-endian and little-endian.
+* [cfg-if](https://crates.io/crates/cfg-if)
+    * A macro to ergonomically define an item depending on a large number of
+      #[cfg] parameters. Structured like an if-else chain, the first matching
+      branch is the item that gets emitted.
+* [clap](https://crates.io/crates/clap)
+    * A simple to use, efficient, and full-featured Command Line Argument Parser
+* [curl](https://crates.io/crates/curl)
+    * Rust bindings to libcurl for making HTTP requests
+* [libc](https://crates.io/crates/libc)
+    * Raw FFI bindings to platform libraries like libc.
+* [log](https://crates.io/crates/log)
+    * A lightweight logging facade for Rust
+* [openssl](https://crates.io/crates/openssl)
+    * OpenSSL bindings
+* [serde](https://crates.io/crates/serde)
+    * A generic serialization/deserialization framework
+* [serde_yaml](https://crates.io/crates/serde_yaml)
+    * YAML data format for Serde
+* [thiserror](https://crates.io/crates/thiserror)
+    * derive(Error)
+* [zerocopy](https://crates.io/crates/zerocopy)
+    * Utilities for zero-copy parsing and serialization
+
+Dependencies used by the crates listed above can be used, too.
+
+### Add new tool
+To add a new tool issue `cargo new $TOOLNAME` in the `rust` directory.
+
+Add the tool to the _s390-tools_ build system:
+```Makefile
+CARGO_TARGETS := $TOOLNAME
+```
+Add the library to the _s390-tools_ test list:
+```Makefile
+CARGO_TEST_TARGETS := $LIBNAME
+```
+
+Add the tool/library to the cargo workspace:
+```toml
+[workspace]
+members = [
+	"pv",
+	"pvsecret",
+	"$TOOLNAME",
+	"$LIBNAME"
+	"utils",
+]
+```
+
+### Versions
+Do not communicate the version defined in the `toml` file by default. Use
+`release_string` from the `rust/utils` crate instead:
+
+```rust
+use utils::release_string;
+
+fn print_version() {
+    println!(
+        "{} version {}\nCopyright IBM Corp. 2023",
+        env!("CARGO_PKG_NAME"), // collapses into the crates name
+        release_string!() // this (very likely) collapses into a compile time constant
+    );
+}
+```
+
+### Unsafe rust
+rust allows you to write unsafe rust. Try to avoid it, it can make rust
+_unsafe_.  If you need to, e.g. interacting with other languages like C, keep
+the `unsafe` block as small as possible and add a reasoning using `// SAFETY:
+`why this code is safe. Example:
+
+```rust
+// Get the raw pointer and do an ioctl.
+//
+// SAFETY: the passed pointer points to a valid memory region that
+// contains the expected C-struct. The struct outlives this function.
+unsafe {
+    let ptr: *mut ffi::uvio_ioctl_cb = cb as *mut _;
+    rc = ioctl(raw_fd, cmd, ptr);
+}
+```
+
+### Coding style
+Make `cargo fmt` and `cargo clippy` happy!
+
+### Testing
+Prefer writing tests using rustdoc. Use explicit rust tests for more edge case tests.

rust/pv/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "pv"
+version = "1.0.0"
+edition.workspace = true
+license.workspace = true
+
+[dependencies]
+byteorder = "1.3"
+clap = { version ="4", features = ["derive", "wrap_help"] }
+curl = "0.4.7"
+log = { version = "0.4.6", features = ["std", "release_max_level_debug"] }
+openssl = "0.10.49"
+serde = { version = "1.0.139", features = ["derive"]  }
+thiserror = "1.0.33"
+utils = {path = "../utils"}
+zerocopy = { version="0.7", features = ["derive"] }
+
+openssl_extensions = { path = "openssl_extensions" }
+pv_core = { path = "../pv_core" }
+
+[dev-dependencies]
+mockito = {version = "1", default-features = false }
+once_cell = "1.19"
+serde_test = "1"

rust/pv/openssl_extensions/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "openssl_extensions"
+version = "0.1.0"
+edition.workspace = true
+license.workspace = true
+
+[dependencies]
+foreign-types = "0.3.1"
+libc = {version = "0.2.49", features = [ "extra_traits"] }
+log = { version = "0.4.6", features = ["std", "release_max_level_debug"] }
+openssl = "0.10.49"
+openssl-sys = "0.9.85"