Messages in this thread | | | Date | Thu, 20 Jan 2022 11:30:08 +0100 | Subject | Re: [RFC PATCH v1 02/10] KVM: s390: Honor storage keys when accessing guest memory | From | Janis Schoetterl-Glausch <> |
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On 1/20/22 11:27, Christian Borntraeger wrote: > > > Am 18.01.22 um 15:38 schrieb Janosch Frank: > [...] >> /* >> We'll do an actual access via the mv instruction which will return access errors to us so we don't need to check here. >> */ > > Be slightly more verbose I guess. Something like > We'll do an actual access via the mv instruction which will return access errors to us so we don't need to check here. > By using key 0 all checks are skipped and no performance overhead occurs. > > ?
Yes, I'll also mention that we implement storage protection override by retrying. > >>> + rc = guest_range_to_gpas(vcpu, ga, ar, gpas, len, asce, mode, 0);
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