Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching

Subject: Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Wed, 24 Aug 2022 19:15:10 +0200
Cc: Oliver Upton <oupton@xxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>, Wanpeng Li <wanpengli@xxxxxxxxxxx>, Jim Mattson <jmattson@xxxxxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, David Dunn <daviddunn@xxxxxxxxxx>, Peter Shier <pshier@xxxxxxxxxx>
In-reply-to: <4c7f4ba7d6f4f796a2e7347113b280373a077d8a.camel@redhat.com>
References: <20220316005538.2282772-1-oupton@google.com> <20220316005538.2282772-2-oupton@google.com> <Yjyt7tKSDhW66fnR@google.com> <2a438f7c-4dea-c674-86c0-9164cbad0813@redhat.com> <YjzBB6GzNGrJdRC2@google.com> <Yj5V4adpnh8/B/K0@google.com> <YkHwMd37Fo8Zej59@google.com> <YkH+X9c0TBSGKtzj@google.com> <48030e75b36b281d4441d7dba729889aa9641125.camel@redhat.com> <YwY5AxXHAAxjJEPB@google.com> <4c7f4ba7d6f4f796a2e7347113b280373a077d8a.camel@redhat.com>
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On 8/24/22 17:06, Maxim Levitsky wrote:

I wonder how hard it will be to ask Qemu to disable this quirk....


I think we should just do it.  Send a patch. :)

Paolo

References:
- [PATCH 0/2] KVM: x86: Allow opt out of guest hypercall patching
  - From: Oliver Upton
- [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Oliver Upton
- Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Sean Christopherson
- Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Paolo Bonzini
- Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Oliver Upton
- Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Sean Christopherson
- Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Oliver Upton
- Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Sean Christopherson
- Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Maxim Levitsky
- Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Sean Christopherson
- Re: [PATCH 1/2] KVM: x86: Allow userspace to opt out of hypercall patching
  - From: Maxim Levitsky