linux-kernel - [PATCH 4.18 024/158] KVM: s390: vsie: copy wrapping keys to right place

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Message-Id: <20180917211712.049268812@linuxfoundation.org>
Date:   Tue, 18 Sep 2018 00:40:54 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Pierre Morel <pmorel@...ux.ibm.com>,
        David Hildenbrand <david@...hat.com>,
        Cornelia Huck <cohuck@...hat.com>,
        Janosch Frank <frankja@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>
Subject: [PATCH 4.18 024/158] KVM: s390: vsie: copy wrapping keys to right place

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pierre Morel <pmorel@...ux.ibm.com>

commit 204c97245612b6c255edf4e21e24d417c4a0c008 upstream.

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@...ux.ibm.com>
Reviewed-by: David Hildenbrand <david@...hat.com>
Reviewed-by: Cornelia Huck <cohuck@...hat.com>
Reviewed-by: Janosch Frank <frankja@...ux.ibm.com>
Cc: stable@...r.kernel.org # v4.8+
Message-Id: <1535019956-23539-2-git-send-email-pmorel@...ux.ibm.com>
Signed-off-by: Janosch Frank <frankja@...ux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@...ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/s390/kvm/vsie.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -173,7 +173,8 @@ static int shadow_crycb(struct kvm_vcpu
 		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;