s390/entry: Fix setting _CIF_MCCK_GUEST with lowcore relocation

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[ Upstream commit 121df45b37 ]

When lowcore relocation is enabled, the machine check handler doesn't
use the lowcore address when setting _CIF_MCCK_GUEST. Fix this by
adding the missing base register.

Fixes: 0001b7bbc5 ("s390/entry: Make mchk_int_handler() ready for lowcore relocation")
Reported-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Sven Schnelle 2025-03-20 13:25:38 +01:00 • committed by Greg Kroah-Hartman

parent 7e3497d7da

commit c76bb2d0aa

1 changed files with 1 additions and 1 deletions

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arch/s390/kernel/entry.S

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