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s390/boot: Make .amode31 section address range explicit

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This is a preparatory rework to allow uncoupling virtual
and physical addresses spaces.

Introduce .amode31 section address range AMODE31_START
and AMODE31_END macros for later use.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Alexander Gordeev 2023-08-11 09:49:27 +02:00
parent 7de0446f0b
commit 5fb50fa66a
2 changed files with 4 additions and 1 deletions
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3
arch/s390/include/asm/physmem_info.h
View File

@ -170,4 +170,7 @@ static inline unsigned long get_physmem_reserved(enum reserved_range_type type,
return *size;
}
#define AMODE31_START (physmem_info.reserved[RR_AMODE31].start)
#define AMODE31_END (physmem_info.reserved[RR_AMODE31].end)
#endif

2
arch/s390/kernel/setup.c
View File

@ -765,7 +765,7 @@ static void __init relocate_amode31_section(void)
unsigned long amode31_size = __eamode31 - __samode31;
long amode31_offset, *ptr;
amode31_offset = physmem_info.reserved[RR_AMODE31].start - (unsigned long)__samode31;
amode31_offset = AMODE31_START - (unsigned long)__samode31;
pr_info("Relocating AMODE31 section of size 0x%08lx\n", amode31_size);
/* Move original AMODE31 section to the new one */