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From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Gonda <pgonda@google.com>
Cc: Sean Christopherson <seanjc@google.com>,
	kvm list <kvm@vger.kernel.org>, Marc Orr <marcorr@google.com>,
	Nathan Tempelman <natet@google.com>,
	Brijesh Singh <brijesh.singh@amd.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] KVM: SEV: Disable KVM_CAP_VM_COPY_ENC_CONTEXT_FROM for SEV-ES
Date: Thu, 16 Sep 2021 00:33:23 +0200	[thread overview]
Message-ID: <9feed4e4-937e-2f11-bb56-0da5959c7dbd@redhat.com> (raw)
In-Reply-To: <CAMkAt6oPijfkPjT4ARpVmXfdczChf2k3ACBwK0YZeuGOxMAE8Q@mail.gmail.com>

On 15/09/21 18:10, Peter Gonda wrote:
> svm_vm_copy_asid_from() {
> 
>     asid = to_kvm_svm(source_kvm)->sev_info.asid;
> + handle = to_kvm_svm(source_kvm)->sev_info.handle;
> + fd = to_kvm_svm(source_kvm)->sev_info.fd;
> + es_active = to_kvm_svm(source_kvm)->sev_info.es_active;
> 
> ...
> 
>      /* Set enc_context_owner and copy its encryption context over */
>      mirror_sev = &to_kvm_svm(kvm)->sev_info;
>      mirror_sev->enc_context_owner = source_kvm;
>      mirror_sev->asid = asid;
>      mirror_sev->active = true;
> +  mirror_sev->handle = handle;
> +  mirror_sev->fd = fd;
> + mirror_sev->es_active = es_active;
> 
> Paolo would you prefer a patch to enable ES mirroring or continue with
> this patch to disable it for now?

If it's possible to enable it, it would be better.  The above would be a 
reasonable patch for 5.15-rc.

Paolo


  reply	other threads:[~2021-09-15 22:33 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-14 17:15 [PATCH] KVM: SEV: Disable KVM_CAP_VM_COPY_ENC_CONTEXT_FROM for SEV-ES Peter Gonda
2021-09-14 17:32 ` Sean Christopherson
2021-09-14 17:58   ` Peter Gonda
2021-09-14 18:41     ` Sean Christopherson
2021-09-14 18:46       ` Peter Gonda
2021-09-14 18:49         ` Sean Christopherson
2021-09-15  8:44           ` Paolo Bonzini
2021-09-15 16:10             ` Peter Gonda
2021-09-15 22:33               ` Paolo Bonzini [this message]
2021-09-16 18:08                 ` Nathan Tempelman
2021-09-16 19:00                   ` Nathan Tempelman
2021-09-21 15:04                     ` Peter Gonda

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