linux-kernel - Re: [PATCH RFC v7 49/64] KVM: SVM: Introduce ops for the post gfn map and unmap

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Message-ID: <3c9d5c84-7b54-e12e-f6ba-a73f66e0b094@amazon.com>
Date:   Wed, 11 Jan 2023 15:49:25 +0200
From:   Sabin Rapan <sabrapan@...zon.com>
To:     Michael Roth <michael.roth@....com>, <kvm@...r.kernel.org>
CC:     <linux-coco@...ts.linux.dev>, <linux-mm@...ck.org>,
        <linux-crypto@...r.kernel.org>, <x86@...nel.org>,
        <linux-kernel@...r.kernel.org>, <tglx@...utronix.de>,
        <mingo@...hat.com>, <jroedel@...e.de>, <thomas.lendacky@....com>,
        <hpa@...or.com>, <ardb@...nel.org>, <pbonzini@...hat.com>,
        <seanjc@...gle.com>, <vkuznets@...hat.com>,
        <wanpengli@...cent.com>, <jmattson@...gle.com>, <luto@...nel.org>,
        <dave.hansen@...ux.intel.com>, <slp@...hat.com>,
        <pgonda@...gle.com>, <peterz@...radead.org>,
        <srinivas.pandruvada@...ux.intel.com>, <rientjes@...gle.com>,
        <dovmurik@...ux.ibm.com>, <tobin@....com>, <bp@...en8.de>,
        <vbabka@...e.cz>, <kirill@...temov.name>, <ak@...ux.intel.com>,
        <tony.luck@...el.com>, <marcorr@...gle.com>,
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        <alpergun@...gle.com>, <dgilbert@...hat.com>, <jarkko@...nel.org>,
        <ashish.kalra@....com>, <harald@...fian.com>,
        Brijesh Singh <brijesh.singh@....com>,
        Jarkko Sakkinen <jarkko@...fian.com>
Subject: Re: [PATCH RFC v7 49/64] KVM: SVM: Introduce ops for the post gfn map
 and unmap



On 14.12.2022 21:40, Michael Roth wrote:
> diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h
> index a4d48c3e0f89..aef13c120f2d 100644
> --- a/arch/x86/kvm/svm/svm.h
> +++ b/arch/x86/kvm/svm/svm.h
> @@ -100,6 +100,7 @@ struct kvm_sev_info {
>         atomic_t migration_in_progress;
>         u64 snp_init_flags;
>         void *snp_context;      /* SNP guest context page */
> +       spinlock_t psc_lock;

Looks like a leftover from v6 series.

--
Sabin.



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