Re: [PATCH v5 2/3] s390/kvm: extend kvm_s390_shadow_fault to return entry pointer

Christian Borntraeger
2021-03-05T17:01:57Z

On 02.03.21 18:44, Claudio Imbrenda wrote:
> Extend kvm_s390_shadow_fault to return the pointer to the valid leaf
> DAT table entry, or to the invalid entry.
>
> Also return some flags in the lower bits of the address:
> PEI_DAT_PROT: indicates that DAT protection applies because of the
> protection bit in the segment (or, if EDAT, region) tables.
> PEI_NOT_PTE: indicates that the address of the DAT table entry returned
> does not refer to a PTE, but to a segment or region table.
>
> Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
> Cc: stable@vger.kernel.org
> Reviewed-by: Janosch Frank <frankja@de.ibm.com>
> Reviewed-by: David Hildenbrand <david@redhat.com>

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>