linux-kernel - Re: [PATCH 0/3] clean up interface between KVM and psp

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Date:   Tue, 17 Aug 2021 11:08:18 -0700
From:   Mingwei Zhang <mizhang@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Brijesh Singh <brijesh.singh@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        John Allen <john.allen@....com>,
        Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm <kvm@...r.kernel.org>,
        linux-crypto@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        Alper Gun <alpergun@...gle.com>,
        Borislav Petkov <bp@...en8.de>,
        David Rienjes <rientjes@...gle.com>,
        Marc Orr <marcorr@...gle.com>, Peter Gonda <pgonda@...gle.com>,
        Vipin Sharma <vipinsh@...gle.com>
Subject: Re: [PATCH 0/3] clean up interface between KVM and psp

Hi Paolo,

Thanks for the prompt reply. I will update the code and will be
waiting for Tom and other AMD folks' feedback.

Thanks. Regards
-Mingwei

On Tue, Aug 17, 2021 at 1:54 AM Paolo Bonzini <pbonzini@...hat.com> wrote:
>
> On 16/08/21 22:24, Mingwei Zhang wrote:
> > This patch set is trying to help make the interface between KVM and psp
> > cleaner and simpler. In particular, the patches do the following
> > improvements:
> >   - avoid the requirement of psp data structures for some psp APIs.
> >   - hide error handling within psp API, eg., using sev_decommission.
> >   - hide the serialization requirement between DF_FLUSH and DEACTIVATE.
> >
> > Mingwei Zhang (3):
> >    KVM: SVM: move sev_decommission to psp driver
> >    KVM: SVM: move sev_bind_asid to psp
> >    KVM: SVM: move sev_unbind_asid and DF_FLUSH logic into psp
>
> No objections apart from the build failure on patch 1.  However, it's up
> to Tom whether they prefer this logic in KVM or the PSP driver.
>
> Paolo
>