From: Pierre Morel <pmorel@linux.ibm.com>
To: Janosch Frank <frankja@linux.ibm.com>,
Tony Krowiak <akrowiak@linux.vnet.ibm.com>,
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
Subject: Re: [PATCH v8 20/22] KVM: s390: Handling of Cypto control block in VSIE
Date: Thu, 9 Aug 2018 09:33:06 +0200 [thread overview]
Message-ID: <a8f0c2f2-6e4c-3a06-0f89-aea3fcc0b985@linux.ibm.com> (raw)
In-Reply-To: <dc8b3e66-9ba4-2b78-1e49-12a35d5d234b@linux.ibm.com>
On 09/08/2018 08:20, Janosch Frank wrote:
> On 08.08.2018 16:44, Tony Krowiak wrote:
>> From: Pierre Morel <pmorel@linux.ibm.com>
>> +#define ECA_APIE 0x00000008
> That shouldn't be necessary, it's defined in kvm_host.h which vsie.c
> includes. Or is it not?
This was forgotten here for a long long time!
You are right I remove it.
>
>> +static int shadow_crycb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
>> +{
>> + struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s;
>> + struct kvm_s390_sie_block *scb_o = vsie_page->scb_o;
>> + const uint32_t crycbd_o = READ_ONCE(scb_o->crycbd);
>> + const u32 crycb_addr = crycbd_o & 0x7ffffff8U;
>> + int g2_fmt = vcpu->arch.sie_block->crycbd & CRYCB_FORMAT_MASK;
>> + int g3_fmt = crycbd_o & CRYCB_FORMAT_MASK;
>> + int g2_apie, g2_msa3, g3_apie, g3_msa3;
>> + int size, ret;
>> +
>> + /* crycb should not cross a page boundary */
>> + size = (g3_fmt == CRYCB_FORMAT2) ? 0x100 : 0x80;
>> + if ((crycb_addr & PAGE_MASK) != ((crycb_addr + size) & PAGE_MASK))
>> + return set_validity_icpt(scb_s, 0x003CU);
>> +
>> + g2_apie = vcpu->arch.sie_block->eca & ECA_APIE;
>> + g3_apie = scb_o->eca & g2_apie;
>> +
>> + g2_msa3 = test_kvm_facility(vcpu->kvm, 76);
>> + g3_msa3 = (g3_fmt != CRYCB_FORMAT0) & g2_msa3;
>> +
>> + scb_s->crycbd = 0;
>> + /* If no AP instructions and no keys we just set crycbd to 0 */
>> + if (!(g3_apie || g3_msa3))
>> + return 0;
>> +
>> + if (!crycb_addr)
>> + return set_validity_icpt(scb_s, 0x0039U);
>> +
>> + if (g3_apie) {
>> + ret = copy_apcb(vcpu, vsie_page, g2_fmt, g3_fmt);
>> + if (ret)
>> + goto out;
> s/goto out;/return ret;/
better
Thanks
Pierre
--
Pierre Morel
Linux/KVM/QEMU in Böblingen - Germany
next prev parent reply other threads:[~2018-08-09 7:33 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-08 14:44 [PATCH v8 00/22] vfio-ap: guest dedicated crypto adapters Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 01/22] s390/zcrypt: Add ZAPQ inline function Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 02/22] s390/zcrypt: Review inline assembler constraints Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 03/22] s390/zcrypt: Show load of cards and queues in sysfs Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 04/22] s390/zcrypt: Integrate ap_asm.h into include/asm/ap.h Tony Krowiak
2018-08-09 9:06 ` Cornelia Huck
2018-08-09 9:17 ` Harald Freudenberger
2018-08-09 13:45 ` Harald Freudenberger
2018-08-09 16:06 ` Tony Krowiak
2018-08-10 8:49 ` Cornelia Huck
2018-08-10 9:37 ` Harald Freudenberger
2018-08-10 15:53 ` Tony Krowiak
2018-08-10 15:50 ` Tony Krowiak
2018-08-09 15:18 ` Tony Krowiak
2018-08-09 15:43 ` Heiko Carstens
2018-08-09 16:55 ` Tony Krowiak
2018-08-13 9:24 ` Harald Freudenberger
2018-08-13 9:34 ` Cornelia Huck
2018-08-08 14:44 ` [PATCH v8 05/22] KVM: s390: vsie: simulate VCPU SIE entry/exit Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 06/22] KVM: s390: introduce and use KVM_REQ_VSIE_RESTART Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 07/22] KVM: s390: refactor crypto initialization Tony Krowiak
2018-08-09 5:58 ` Janosch Frank
2018-08-10 16:13 ` Tony Krowiak
2018-08-09 8:25 ` David Hildenbrand
2018-08-09 19:54 ` Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 08/22] s390: vfio-ap: base implementation of VFIO AP device driver Tony Krowiak
2018-08-09 10:12 ` Cornelia Huck
2018-08-08 14:44 ` [PATCH v8 09/22] s390: vfio-ap: register matrix device with VFIO mdev framework Tony Krowiak
2018-08-09 11:06 ` Cornelia Huck
2018-08-09 16:27 ` Pierre Morel
2018-08-10 8:59 ` Cornelia Huck
2018-08-08 14:44 ` [PATCH v8 10/22] s390: vfio-ap: sysfs interfaces to configure adapters Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 11/22] s390: vfio-ap: sysfs interfaces to configure domains Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 12/22] s390: vfio-ap: sysfs interfaces to configure control domains Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 13/22] s390: vfio-ap: sysfs interface to view matrix mdev matrix Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 14/22] KVM: s390: interfaces to clear CRYCB masks Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 15/22] s390: vfio-ap: implement mediated device open callback Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 16/22] s390: vfio-ap: implement VFIO_DEVICE_GET_INFO ioctl Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 17/22] s390: vfio-ap: zeroize the AP queues Tony Krowiak
2018-08-10 9:14 ` Cornelia Huck
2018-08-10 10:49 ` Pierre Morel
2018-08-10 11:16 ` Cornelia Huck
2018-08-10 16:24 ` Tony Krowiak
2018-08-13 6:57 ` Cornelia Huck
2018-08-08 14:44 ` [PATCH v8 18/22] s390: vfio-ap: implement VFIO_DEVICE_RESET ioctl Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 19/22] KVM: s390: Clear Crypto Control Block when using vSIE Tony Krowiak
2018-08-09 8:10 ` David Hildenbrand
2018-08-09 8:50 ` Pierre Morel
2018-08-09 8:57 ` Pierre Morel
2018-08-08 14:44 ` [PATCH v8 20/22] KVM: s390: Handling of Cypto control block in VSIE Tony Krowiak
2018-08-09 6:20 ` Janosch Frank
2018-08-09 7:33 ` Pierre Morel [this message]
2018-08-08 14:44 ` [PATCH v8 21/22] KVM: s390: CPU model support for AP virtualization Tony Krowiak
2018-08-09 8:17 ` David Hildenbrand
2018-08-09 8:34 ` Harald Freudenberger
2018-08-09 20:27 ` Tony Krowiak
2018-08-08 14:44 ` [PATCH v8 22/22] s390: doc: detailed specifications " Tony Krowiak
2018-08-08 15:06 ` [PATCH v8 00/22] vfio-ap: guest dedicated crypto adapters Janosch Frank
2018-08-08 16:25 ` Cornelia Huck
2018-08-08 22:52 ` Tony Krowiak
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