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From: Maxim Levitsky <mlevitsk@redhat.com>
To: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: pbonzini@redhat.com, seanjc@google.com, joro@8bytes.org,
	jon.grimm@amd.com, wei.huang2@amd.com, terry.bowman@amd.com
Subject: Re: [RFC PATCH 02/13] x86/cpufeatures: Introduce x2AVIC CPUID bit
Date: Thu, 24 Feb 2022 18:32:06 +0200	[thread overview]
Message-ID: <b7c2e257c8080f9724ee2ca96642d45d968a8b00.camel@redhat.com> (raw)
In-Reply-To: <20220221021922.733373-3-suravee.suthikulpanit@amd.com>

On Sun, 2022-02-20 at 20:19 -0600, Suravee Suthikulpanit wrote:
> Introduce a new feature bit for virtualized x2APIC (x2AVIC) in
> CPUID_Fn8000000A_EDX [SVM Revision and Feature Identification].
> 
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> ---
>  arch/x86/include/asm/cpufeatures.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
> index 6db4e2932b3d..8c91a313668e 100644
> --- a/arch/x86/include/asm/cpufeatures.h
> +++ b/arch/x86/include/asm/cpufeatures.h
> @@ -345,6 +345,7 @@
>  #define X86_FEATURE_AVIC		(15*32+13) /* Virtual Interrupt Controller */
>  #define X86_FEATURE_V_VMSAVE_VMLOAD	(15*32+15) /* Virtual VMSAVE VMLOAD */
>  #define X86_FEATURE_VGIF		(15*32+16) /* Virtual GIF */
> +#define X86_FEATURE_X2AVIC		(15*32+18) /* Virtual x2apic */
>  #define X86_FEATURE_V_SPEC_CTRL		(15*32+20) /* Virtual SPEC_CTRL */
>  #define X86_FEATURE_SVME_ADDR_CHK	(15*32+28) /* "" SVME addr check */
>  
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>

Best regards,
	Maxim Levitsky


  reply	other threads:[~2022-02-24 16:33 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-21  2:19 [RFC PATCH 00/13] Introducing AMD x2APIC Virtualization (x2AVIC) support Suravee Suthikulpanit
2022-02-21  2:19 ` [RFC PATCH 01/13] KVM: SVM: Add warning when encounter invalid APIC ID Suravee Suthikulpanit
2022-02-24 16:30   ` Maxim Levitsky
2022-02-21  2:19 ` [RFC PATCH 02/13] x86/cpufeatures: Introduce x2AVIC CPUID bit Suravee Suthikulpanit
2022-02-24 16:32   ` Maxim Levitsky [this message]
2022-02-21  2:19 ` [RFC PATCH 03/13] KVM: SVM: Detect X2APIC virtualization (x2AVIC) support Suravee Suthikulpanit
2022-02-24 16:52   ` Maxim Levitsky
2022-03-01  9:45     ` Suravee Suthikulpanit
2022-02-21  2:19 ` [RFC PATCH 04/13] KVM: SVM: Only call vcpu_(un)blocking when AVIC is enabled Suravee Suthikulpanit
2022-02-24 16:54   ` Maxim Levitsky
2022-03-01  9:59     ` Suravee Suthikulpanit
2022-02-21  2:19 ` [RFC PATCH 05/13] KVM: SVM: Update max number of vCPUs supported for x2AVIC mode Suravee Suthikulpanit
2022-02-24 17:18   ` Maxim Levitsky
2022-03-01 10:47     ` Suravee Suthikulpanit
2022-03-01 11:31       ` Maxim Levitsky
2022-02-21  2:19 ` [RFC PATCH 06/13] KVM: SVM: Add logic to determine x2APIC mode Suravee Suthikulpanit
2022-02-24 17:29   ` Maxim Levitsky
2022-03-03  2:12     ` Suthikulpanit, Suravee
2022-03-03 13:12     ` Suravee Suthikulpanit
2022-02-21  2:19 ` [RFC PATCH 07/13] KVM: SVM: Update avic_kick_target_vcpus to support 32-bit APIC ID Suravee Suthikulpanit
2022-02-24 17:35   ` Maxim Levitsky
2022-03-03 14:41     ` Suravee Suthikulpanit
2022-02-21  2:19 ` [RFC PATCH 08/13] KVM: SVM: Do not update logical APIC ID table when in x2APIC mode Suravee Suthikulpanit
2022-02-24 17:41   ` Maxim Levitsky
2022-03-08  5:24     ` Suthikulpanit, Suravee
2022-02-21  2:19 ` [RFC PATCH 09/13] KVM: SVM: Introduce helper function avic_get_apic_id Suravee Suthikulpanit
2022-02-24 19:46   ` Maxim Levitsky
2022-02-21  2:19 ` [RFC PATCH 10/13] KVM: SVM: Adding support for configuring x2APIC MSRs interception Suravee Suthikulpanit
2022-02-24 19:51   ` Maxim Levitsky
2022-03-07 10:14     ` Suthikulpanit, Suravee
2022-02-21  2:19 ` [RFC PATCH 11/13] KVM: SVM: Add logic to switch between APIC and x2APIC virtualization mode Suravee Suthikulpanit
2022-02-22  5:39   ` Suthikulpanit, Suravee
2022-02-24 20:03   ` Maxim Levitsky
2022-03-04 11:22     ` Suravee Suthikulpanit
2022-03-04 11:51       ` Maxim Levitsky
2022-02-21  2:19 ` [RFC PATCH 12/13] KVM: SVM: Remove APICv inhibit reasone due to x2APIC Suravee Suthikulpanit
2022-02-24 20:06   ` Maxim Levitsky
2022-03-01 14:02     ` Suravee Suthikulpanit
2022-02-21  2:19 ` [RFC PATCH 13/13] KVM: SVM: Use fastpath x2apic IPI emulation when #vmexit with x2AVIC Suravee Suthikulpanit
2022-02-24 20:12   ` Maxim Levitsky
2022-03-07  6:24     ` Suthikulpanit, Suravee
2022-02-22  5:37 ` [RFC PATCH 00/13] Introducing AMD x2APIC Virtualization (x2AVIC) support Suthikulpanit, Suravee

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