From cd45c995610420755c5fe0d09afee3106c586e26 Mon Sep 17 00:00:00 2001 From: Vasily Gorbik Date: Wed, 11 Apr 2018 18:54:40 +0200 Subject: s390/mem_detect: use SCLP info for continuous memory detection When neither SCLP storage info, nor z/VM diag260 "storage configuration" are available assume a continuous online memory of size specified by SCLP info. Reviewed-by: Heiko Carstens Reviewed-by: Martin Schwidefsky Signed-off-by: Vasily Gorbik Signed-off-by: Martin Schwidefsky --- arch/s390/boot/mem_detect.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'arch/s390/boot/mem_detect.c') diff --git a/arch/s390/boot/mem_detect.c b/arch/s390/boot/mem_detect.c index 42b0cd23f04a..3becf6bbe4c7 100644 --- a/arch/s390/boot/mem_detect.c +++ b/arch/s390/boot/mem_detect.c @@ -184,8 +184,13 @@ void detect_memory(void) return; } + if (max_physmem_end) { + add_mem_detect_block(0, max_physmem_end); + mem_detect.info_source = MEM_DETECT_SCLP_READ_INFO; + return; + } + scan_memory(rzm); mem_detect.info_source = MEM_DETECT_TPROT_LOOP; - if (!max_physmem_end) - max_physmem_end = get_mem_detect_end(); + max_physmem_end = get_mem_detect_end(); } -- cgit