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s390/kexec_file: Simplify parmarea access

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Access the parmarea in head.S via a struct instead of individual offsets.

While at it make the fields in the parmarea .quads.

Signed-off-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Philipp Rudo
2019-03-06 17:36:26 +01:00
committed by Martin Schwidefsky
parent 4c0f032d49
commit d0d249d75d
6 changed files with 28 additions and 25 deletions
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10
arch/s390/include/asm/setup.h
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@@ -65,6 +65,16 @@
#define OLDMEM_SIZE (*(unsigned long *) (OLDMEM_SIZE_OFFSET))
#define COMMAND_LINE ((char *) (COMMAND_LINE_OFFSET))
struct parmarea {
unsigned long ipl_device; /* 0x10400 */
unsigned long initrd_start; /* 0x10408 */
unsigned long initrd_size; /* 0x10410 */
unsigned long oldmem_base; /* 0x10418 */
unsigned long oldmem_size; /* 0x10420 */
char pad1[0x10480 - 0x10428]; /* 0x10428 - 0x10480 */
char command_line[ARCH_COMMAND_LINE_SIZE]; /* 0x10480 */
};
extern int noexec_disabled;
extern int memory_end_set;
extern unsigned long memory_end;