linux-kernel - Re: [PATCH v5 03/13] KVM: x86: Add arch LBR MSRs to msrs_to_save

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Message-ID: <CALMp9eTKNG_b6Te=aV_Qd3ADXzf8RkvDhGfWtopQGAf51eHMbg@mail.gmail.com>
Date:   Fri, 9 Jul 2021 11:24:46 -0700
From:   Jim Mattson <jmattson@...gle.com>
To:     Yang Weijiang <weijiang.yang@...el.com>
Cc:     pbonzini@...hat.com, seanjc@...gle.com, vkuznets@...hat.com,
        wei.w.wang@...el.com, like.xu.linux@...il.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 03/13] KVM: x86: Add arch LBR MSRs to msrs_to_save_all list

On Fri, Jul 9, 2021 at 2:51 AM Yang Weijiang <weijiang.yang@...el.com> wrote:
>
> Arch LBR MSR_ARCH_LBR_DEPTH and MSR_ARCH_LBR_CTL are {saved|restored}
> by userspace application if they're available.
>
> Suggested-by: Jim Mattson <jmattson@...gle.com>
> Signed-off-by: Yang Weijiang <weijiang.yang@...el.com>
Reviewed-by: Jim Mattson <jmattson@...gle.com>