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zdev: Add udev rule helper tool

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Add an internal tool intended to be used by udev rules to determine
zdev and hypervisor related system information in key=value format.

Supported keys are:

  ZDEV_NEST_LEVEL=n
    Virtualization nesting level of running system

  ZDEV_HYPERVISOR_<n>=LPAR|z/VM|KVM/Linux
    Type of hypervisor that provides virtualization at nesting level <n>

  ZDEV_IS_DPM=0|1
    Indicator if top-level LPAR is managed by Dynamic Partition Manager

  ZDEV_NO_AUTO=0|1
    Indicator if auto-configuration is requested

Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Peter Oberparleiter
2021-09-22 16:21:06 +02:00
committed by Jan Höppner
parent 12c84469fd
commit 8c6c2ef30e
2 changed files with 158 additions and 3 deletions
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7
zdev/src/Makefile
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@@ -73,7 +73,7 @@ lszdev_objects += lcs.o lcs_auto.o
# Generic CCW devtype
lszdev_objects += generic_ccw.o
all: chzdev lszdev
all: chzdev lszdev zdev_id
chzdev_usage.c: chzdev_usage.txt
$(SED) $< >$@ -e 's/\\/\\\\/g' -e 's/"/\\"/g' -e 's/^/"/g' \
@@ -95,16 +95,17 @@ libs = $(rootdir)/libutil/libutil.a
chzdev: $(chzdev_objects) $(libs)
lszdev: $(lszdev_objects) $(libs)
install: chzdev
install: chzdev zdev_id
$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR)
$(INSTALL) -c chzdev $(DESTDIR)$(BINDIR)
$(INSTALL) -c lszdev $(DESTDIR)$(BINDIR)
$(INSTALL) -c zdev_id $(DESTDIR)$(TOOLS_LIBDIR)
ifeq ($(HAVE_DRACUT),1)
$(INSTALL) -m 755 zdev-root-update.dracut \
$(DESTDIR)$(TOOLS_LIBDIR)/zdev-root-update
endif
clean:
@rm -f *.o chzdev lszdev chzdev_usage.c lszdev_usage.c gmon.out *.gcda *.gcno
@rm -f *.o chzdev lszdev chzdev_usage.c lszdev_usage.c gmon.out *.gcda *.gcno zdev_id
.PHONY: all install clean