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s390/mem_detect: move tprot loop to early boot phase

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Move memory detection to early boot phase. To store online memory
regions "struct mem_detect_info" has been introduced together with
for_each_mem_detect_block iterator. mem_detect_info is later converted
to memblock.

Also introduces sclp_early_get_meminfo function to get maximum physical
memory and maximum increment number.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Vasily Gorbik
2018-04-11 11:56:55 +02:00
committed by Martin Schwidefsky
parent 17aacfbfa1
commit 6966d604e2
11 changed files with 277 additions and 69 deletions
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arch/s390/include/asm/setup.h
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@@ -69,8 +69,6 @@ extern int memory_end_set;
extern unsigned long memory_end;
extern unsigned long max_physmem_end;
extern void detect_memory_memblock(void);
#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)