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zipl: Support command lines longer than 896 bytes in bootloader

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This adds support for long command lines. The boot loader stages
will no longer use a fixed limit when copying the command line, but
will use the maximum length from the kernel image that is being loaded.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Sven Schnelle
2021-11-04 12:21:28 +01:00
committed by Jan Höppner
parent bb8f17a7da
commit 1627c6a39f
3 changed files with 35 additions and 25 deletions
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include/boot/linux_layout.h
+1
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@@ -23,6 +23,7 @@
#define INITRD_SIZE _AC(0x10410, UL)
#define OLDMEM_BASE _AC(0x10418, UL)
#define OLDMEM_SIZE _AC(0x10420, UL)
#define MAX_COMMAND_LINE_SIZE _AC(0x10430, UL)
#define COMMAND_LINE _AC(0x10480, UL)
/* Parameter sizes */