From: David Hildenbrand <dahi@xxxxxxxxxxxxxxxxxx> If a guest ste is read-only, it doesn't make sense to force the ptes in as writable in the host. If the source page is read-only in the host, it won't have to be made writable. Please note that if the source page is not available, it will still be faulted in writable. This can be changed internally later on. If ste protection is removed, underlying shadow tables are also removed, therefore this change does not affect the guest. Acked-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> Signed-off-by: David Hildenbrand <dahi@xxxxxxxxxxxxxxxxxx> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> --- arch/s390/kvm/gaccess.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c index e70f916..a85bc6c 100644 --- a/arch/s390/kvm/gaccess.c +++ b/arch/s390/kvm/gaccess.c @@ -1111,6 +1111,7 @@ int kvm_s390_shadow_fault(struct kvm_vcpu *vcpu, struct gmap *sg, rc = PGM_PAGE_TRANSLATION; if (!rc && (pte.z || pte.co)) rc = PGM_TRANSLATION_SPEC; + pte.p |= dat_protection; if (!rc) rc = gmap_shadow_page(sg, saddr, __pte(pte.val)); ipte_unlock(vcpu); -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
