s390/diag: handle diag 204 subcode 4 address correctly

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Diagnose 204 subcode 4 requires a real (physical) address, but a
virtual address is passed to the inline assembly.

Convert the address to a physical address for only this specific case.

Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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This commit is contained in:

Heiko Carstens 2023-07-02 21:20:09 +02:00

parent 8cf57d7217

commit c83cd4fe31

2 changed files with 4 additions and 0 deletions

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arch/s390/include/asm/diag.h

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2

arch/s390/kernel/diag.c

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