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KVM: s390: vsie: copy wrapping keys to right place

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

Fixes: bbeaa58b3 ("KVM: s390: vsie: support aes dea wrapping keys")
Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Cc: stable@vger.kernel.org # v4.8+
Message-Id: <1535019956-23539-2-git-send-email-pmorel@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Pierre Morel 2018-08-23 12:25:54 +02:00 committed by Christian Borntraeger
parent a11bdb1a6b
commit 204c972456
1 changed files with 2 additions and 1 deletions
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3
arch/s390/kvm/vsie.c
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@ -173,7 +173,8 @@ static int shadow_crycb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
return set_validity_icpt(scb_s, 0x0039U); return set_validity_icpt(scb_s, 0x0039U);
/* copy only the wrapping keys */ /* 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); return set_validity_icpt(scb_s, 0x0035U);
scb_s->ecb3 |= ecb3_flags; scb_s->ecb3 |= ecb3_flags;