Christian Borntraeger cfd2a7f8de s390/nmi: handle vector validity failures for KVM guests
commit f094a39c6ba168f2df1edfd1731cca377af5f442 upstream.

The machine check validity bit tells about the context. If a KVM guest
was running the bit tells about the guest validity and the host state is
not affected. As a guest can disable the guest validity this might
result in unwanted host errors on machine checks.

Cc: stable@vger.kernel.org
Fixes: c929500d7a5a ("s390/nmi: s390: New low level handling for machine check happening in guest")
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-01 17:26:59 +01:00
..
2021-11-25 09:48:42 +01:00
2022-01-27 11:04:10 +01:00
2022-01-27 11:05:34 +01:00