From: Tony Krowiak <akrowiak@linux.vnet.ibm.com>
To: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org
Cc: freude@de.ibm.com, schwidefsky@de.ibm.com,
heiko.carstens@de.ibm.com, borntraeger@de.ibm.com,
cohuck@redhat.com, kwankhede@nvidia.com,
bjsdjshi@linux.vnet.ibm.com, pbonzini@redhat.com,
alex.williamson@redhat.com, pmorel@linux.vnet.ibm.com,
alifm@linux.vnet.ibm.com, mjrosato@linux.vnet.ibm.com,
jjherne@linux.vnet.ibm.com, thuth@redhat.com,
pasic@linux.vnet.ibm.com, berrange@redhat.com,
fiuczy@linux.vnet.ibm.com, buendgen@de.ibm.com,
akrowiak@linux.vnet.ibm.com, frankja@linux.ibm.com,
Pierre Morel <pmorel@linux.ibm.com>,
Tony Krowiak <akrowiak@linux.ibm.com>
Subject: [PATCH v11 20/26] KVM: s390: vsie: allow CRYCB FORMAT-0
Date: Tue, 25 Sep 2018 19:16:35 -0400 [thread overview]
Message-ID: <20180925231641.4954-21-akrowiak@linux.vnet.ibm.com> (raw)
In-Reply-To: <20180925231641.4954-1-akrowiak@linux.vnet.ibm.com>
From: Pierre Morel <pmorel@linux.ibm.com>
When the host and the guest both use a FORMAT-0 CRYCB,
we copy the guest's FORMAT-0 APCB to a shadow CRYCB
for use by vSIE.
Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
---
arch/s390/kvm/vsie.c | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 0a26814c6efe..67a5536637bb 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -136,7 +136,15 @@ static int prepare_cpuflags(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
return 0;
}
-/* Copy to APCB FORMAT0 from APCB FORMAT0 */
+/**
+ * setup_apcb00 - Copy to APCB FORMAT0 from APCB FORMAT0
+ * @vcpu: pointer to the virtual CPU
+ * @apcb_s: pointer to start of apcb in the shadow crycb
+ * @apcb_o: pointer to start of original apcb in the guest2
+ * @apcb_h: pointer to start of apcb in the guest1
+ *
+ * Returns 0 and -EFAULT on error reading guest apcb
+ */
static int setup_apcb00(struct kvm_vcpu *vcpu, unsigned long *apcb_s,
unsigned long apcb_o, unsigned long *apcb_h)
{
@@ -209,6 +217,14 @@ static int setup_apcb(struct kvm_vcpu *vcpu, struct kvm_s390_crypto_cb *crycb_s,
return setup_apcb00(vcpu, (unsigned long *) &crycb_s->apcb0,
(unsigned long) &crycb->apcb0,
(unsigned long *) &crycb_h->apcb0);
+ case CRYCB_FORMAT0:
+ if ((crycb_o & PAGE_MASK) != ((crycb_o + 32) & PAGE_MASK))
+ return -EACCES;
+ if (fmt_h != CRYCB_FORMAT0)
+ return -EINVAL;
+ return setup_apcb00(vcpu, (unsigned long *) &crycb_s->apcb0,
+ (unsigned long) &crycb->apcb0,
+ (unsigned long *) &crycb_h->apcb0);
}
return -EINVAL;
}
@@ -248,8 +264,6 @@ static int shadow_crycb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
int ret = 0;
scb_s->crycbd = 0;
- if (!(crycbd_o & vcpu->arch.sie_block->crycbd & CRYCB_FORMAT1))
- return 0;
apie_h = vcpu->arch.sie_block->eca & ECA_APIE;
if (!apie_h && !key_msk)
--
2.19.0.221.g150f307
next prev parent reply other threads:[~2018-09-25 23:18 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-25 23:16 [PATCH v11 00/26] guest dedicated crypto adapters Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 01/26] KVM: s390: vsie: simulate VCPU SIE entry/exit Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 02/26] KVM: s390: introduce and use KVM_REQ_VSIE_RESTART Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 03/26] KVM: s390: refactor crypto initialization Tony Krowiak
2018-09-26 13:07 ` Cornelia Huck
2018-09-25 23:16 ` [PATCH v11 04/26] s390: vfio-ap: base implementation of VFIO AP device driver Tony Krowiak
2018-09-26 7:19 ` David Hildenbrand
2018-09-26 13:10 ` Cornelia Huck
2018-09-25 23:16 ` [PATCH v11 05/26] s390: vfio-ap: register matrix device with VFIO mdev framework Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 06/26] s390: vfio-ap: sysfs interfaces to configure adapters Tony Krowiak
2018-09-26 13:19 ` Cornelia Huck
2018-09-25 23:16 ` [PATCH v11 07/26] s390: vfio-ap: sysfs interfaces to configure domains Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 08/26] s390: vfio-ap: sysfs interfaces to configure control domains Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 09/26] s390: vfio-ap: sysfs interface to view matrix mdev matrix Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 10/26] KVM: s390: interfaces to clear CRYCB masks Tony Krowiak
2018-09-26 13:21 ` Cornelia Huck
2018-09-25 23:16 ` [PATCH v11 11/26] s390: vfio-ap: implement mediated device open callback Tony Krowiak
2018-09-28 10:14 ` Cornelia Huck
2018-09-28 13:02 ` Tony Krowiak
2018-09-28 13:33 ` [FIXUP v11] fixup! " Tony Krowiak
2018-09-28 13:34 ` Christian Borntraeger
2018-09-28 13:35 ` Cornelia Huck
2018-09-28 13:41 ` Halil Pasic
2018-09-28 13:42 ` Christian Borntraeger
2018-09-28 13:46 ` Cornelia Huck
2018-09-28 13:41 ` Christian Borntraeger
2018-09-25 23:16 ` [PATCH v11 12/26] s390: vfio-ap: implement VFIO_DEVICE_GET_INFO ioctl Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 13/26] s390: vfio-ap: zeroize the AP queues Tony Krowiak
2018-09-26 13:38 ` Cornelia Huck
2018-09-26 18:58 ` Christian Borntraeger
2018-09-27 7:04 ` Cornelia Huck
2018-09-25 23:16 ` [PATCH v11 14/26] s390: vfio-ap: implement VFIO_DEVICE_RESET ioctl Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 15/26] KVM: s390: Clear Crypto Control Block when using vSIE Tony Krowiak
2018-09-26 7:16 ` David Hildenbrand
2018-09-25 23:16 ` [PATCH v11 16/26] KVM: s390: vsie: Do the CRYCB validation first Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 17/26] KVM: s390: vsie: Make use of CRYCB FORMAT2 clear Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 18/26] KVM: s390: vsie: Allow CRYCB FORMAT-2 Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 19/26] KVM: s390: vsie: allow CRYCB FORMAT-1 Tony Krowiak
2018-09-25 23:16 ` Tony Krowiak [this message]
2018-09-25 23:16 ` [PATCH v11 21/26] KVM: s390: vsie: allow guest FORMAT-0 CRYCB on host FORMAT-1 Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 22/26] KVM: s390: vsie: allow guest FORMAT-1 CRYCB on host FORMAT-2 Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 23/26] KVM: s390: vsie: allow guest FORMAT-0 " Tony Krowiak
2018-09-25 23:16 ` [PATCH v11 24/26] KVM: s390: device attrs to enable/disable AP interpretation Tony Krowiak
2018-09-26 7:14 ` David Hildenbrand
2018-09-26 13:44 ` Cornelia Huck
2018-09-25 23:16 ` [PATCH v11 25/26] KVM: s390: CPU model support for AP virtualization Tony Krowiak
2018-09-26 7:15 ` David Hildenbrand
2018-09-26 7:28 ` Christian Borntraeger
2018-09-26 13:39 ` Cornelia Huck
2018-09-25 23:16 ` [PATCH v11 26/26] s390: doc: detailed specifications " Tony Krowiak
2018-09-26 22:42 ` Alex Williamson
2018-09-27 6:53 ` Harald Freudenberger
2018-09-27 11:29 ` Halil Pasic
2018-09-27 11:51 ` Cornelia Huck
2018-09-27 11:59 ` Christian Borntraeger
2018-09-27 13:12 ` Tony Krowiak
2018-09-27 13:56 ` Tony Krowiak
2018-09-27 14:21 ` Tony Krowiak
2018-09-27 19:19 ` Tony Krowiak
2018-09-28 7:20 ` Christian Borntraeger
2018-09-28 11:42 ` Christian Borntraeger
2018-09-28 13:43 ` [FIXUP v9] fixup! fixup! " Tony Krowiak
2018-09-28 13:45 ` Christian Borntraeger
2018-09-26 12:30 ` [PATCH v11 00/26] guest dedicated crypto adapters Christian Borntraeger
2018-09-28 10:16 ` Cornelia Huck
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