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Message-ID: <Yv50vWGoLQ9n+6MO@google.com>
Date: Thu, 18 Aug 2022 17:19:57 +0000
From: Sean Christopherson <seanjc@...gle.com>
To: Vitaly Kuznetsov <vkuznets@...hat.com>
Cc: kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
Anirudh Rayabharam <anrayabh@...ux.microsoft.com>,
Wanpeng Li <wanpengli@...cent.com>,
Jim Mattson <jmattson@...gle.com>,
Maxim Levitsky <mlevitsk@...hat.com>,
Nathan Chancellor <nathan@...nel.org>,
Michael Kelley <mikelley@...rosoft.com>,
linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 09/26] KVM: VMX: nVMX: Support TSC scaling and
PERF_GLOBAL_CTRL with enlightened VMCS
On Tue, Aug 02, 2022, Vitaly Kuznetsov wrote:
> diff --git a/arch/x86/kvm/vmx/evmcs.h b/arch/x86/kvm/vmx/evmcs.h
> index f886a8ff0342..4b809c79ae63 100644
> --- a/arch/x86/kvm/vmx/evmcs.h
> +++ b/arch/x86/kvm/vmx/evmcs.h
> @@ -37,16 +37,9 @@ DECLARE_STATIC_KEY_FALSE(enable_evmcs);
> * EPTP_LIST_ADDRESS = 0x00002024,
> * VMREAD_BITMAP = 0x00002026,
> * VMWRITE_BITMAP = 0x00002028,
> - *
> - * TSC_MULTIPLIER = 0x00002032,
> * PLE_GAP = 0x00004020,
> * PLE_WINDOW = 0x00004022,
> * VMX_PREEMPTION_TIMER_VALUE = 0x0000482E,
> - * GUEST_IA32_PERF_GLOBAL_CTRL = 0x00002808,
> - * HOST_IA32_PERF_GLOBAL_CTRL = 0x00002c04,
> - *
> - * Currently unsupported in KVM:
> - * GUEST_IA32_RTIT_CTL = 0x00002814,
Almost forgot: is deleting this chunk of the comment intentional?
> */
> #define EVMCS1_UNSUPPORTED_PINCTRL (PIN_BASED_POSTED_INTR | \
> PIN_BASED_VMX_PREEMPTION_TIMER)
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