From 0f7451ff3ab88507fcffc72a5b7e1c211523a34e Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Fri, 10 Jun 2016 12:36:50 +0200 Subject: [PATCH] s390/ipl: use load normal for LPAR re-ipl Avoid clearing memory for CCW-type re-ipl within a logical partition. This can save a significant amount of time if a logical partition contains a lot of memory. On the other hand we still clear memory if running within a second level hypervisor, since the hypervisor can simply free all memory that was used for the guest. Signed-off-by: Heiko Carstens Acked-by: Christian Borntraeger Acked-by: Michael Holzheu Reviewed-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/ipl.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 44317398b77b..b0dbf9a265f5 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -1085,7 +1085,10 @@ static void __reipl_run(void *unused) break; case REIPL_METHOD_CCW_DIAG: diag308(DIAG308_SET, reipl_block_ccw); - diag308(DIAG308_IPL, NULL); + if (MACHINE_IS_LPAR) + diag308(DIAG308_DUMP, NULL); + else + diag308(DIAG308_IPL, NULL); break; case REIPL_METHOD_FCP_RW_DIAG: diag308(DIAG308_SET, reipl_block_fcp); -- 2.20.1