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| author | Vasily Gorbik <gor@linux.ibm.com> | 2018-04-11 18:42:37 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-10-09 11:21:09 +0200 |
| commit | fddbaa5c423f7ca0a187f88e0b1d98a5c8b4edcf (patch) | |
| tree | 46a7d3abb256fd904cae502a76409be1f1b4afd9 /arch/s390/boot | |
| parent | 251b72a440fa8c550d64d9a9f35e6e1b5b9637df (diff) | |
| download | linux-fddbaa5c423f7ca0a187f88e0b1d98a5c8b4edcf.tar.gz linux-fddbaa5c423f7ca0a187f88e0b1d98a5c8b4edcf.tar.bz2 linux-fddbaa5c423f7ca0a187f88e0b1d98a5c8b4edcf.zip | |
s390/mem_detect: introduce SCLP storage info
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>
Diffstat (limited to 'arch/s390/boot')
| -rw-r--r-- | arch/s390/boot/mem_detect.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/boot/mem_detect.c b/arch/s390/boot/mem_detect.c index 920e6fee75de..8974e3dde1e4 100644 --- a/arch/s390/boot/mem_detect.c +++ b/arch/s390/boot/mem_detect.c @@ -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) |