[PATCH v2 1/5] KVM: s390: vsie: BUG correction by shadow_crycb

Pierre Morel
2018-08-22T16:51:53Z

Copy the key mask to the right offset inside the shadow CRYCB

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
---
arch/s390/kvm/vsie.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 9175518..12b9707 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -173,7 +173,8 @@ static int shadow_crycb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
return set_validity_icpt(scb_s, 0x0039U);

/* copy only the wrapping keys */
- if (read_guest_real(vcpu, crycb_addr + 72, &vsie_page->crycb, 56))
+ if (read_guest_real(vcpu, crycb_addr + 72,
+ vsie_page->crycb.dea_wrapping_key_mask, 56))
return set_validity_icpt(scb_s, 0x0035U);

scb_s->ecb3 |= ecb3_flags;
--
2.7.4