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s390/mem_detect: introduce SCLP storage info

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SCLP storage info allows to detect continuous and non-continuous online
memory under LPAR, z/VM and KVM, when standby memory is defined.

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 18:42:37 +02:00
committed by Martin Schwidefsky
parent 251b72a440
commit fddbaa5c42
6 changed files with 74 additions and 10 deletions
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6
arch/s390/boot/mem_detect.c
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@@ -126,6 +126,12 @@ void detect_memory(void)
unsigned long rzm;
sclp_early_get_meminfo(&max_physmem_end, &rzm);
if (!sclp_early_read_storage_info()) {
mem_detect.info_source = MEM_DETECT_SCLP_STOR_INFO;
return;
}
scan_memory(rzm);
mem_detect.info_source = MEM_DETECT_TPROT_LOOP;
if (!max_physmem_end)