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AJvYcCV3FtTZaOWPRsV3I0fk9PokNRTJmG7e6VsJqW3VNjZ9jRJovBx5BGUIhhGE/A+LK0c6M3g=@vger.kernel.org X-Gm-Message-State: AOJu0YzeNx9tjPCdkdG4WeNKoFNlxsPRdTGeTSEr9xOglk+t+pECDq+l B0ny/gteYLeNq/GVdEnekxCD3Qr3mbJOQjhCIfeuKz+8I0saF5e/xtButi1hV01dwXJ84GxSKi5 6Tg== X-Google-Smtp-Source: AGHT+IGyau0PoBP95Yo7LfzxSiqa/oArBrnyxawTOxipXchYIU5+/lMqeUCH5/FZBJvvi0+YCIuI2+JTqkk= X-Received: from pjh4.prod.google.com ([2002:a17:90b:3f84:b0:2ea:aa56:49c]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:1843:b0:301:9f62:a944 with SMTP id 98e67ed59e1d1-30c3d64f332mr26562923a91.33.1747073705884; Mon, 12 May 2025 11:15:05 -0700 (PDT) Date: Mon, 12 May 2025 11:15:04 -0700 In-Reply-To: <20250313203702.575156-6-jon@nutanix.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250313203702.575156-1-jon@nutanix.com> <20250313203702.575156-6-jon@nutanix.com> Message-ID: Subject: Re: [RFC PATCH 05/18] KVM: x86: Add pt_guest_exec_control to kvm_vcpu_arch From: Sean Christopherson To: Jon Kohler Cc: pbonzini@redhat.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="us-ascii" On Thu, Mar 13, 2025, Jon Kohler wrote: > Add bool for pt_guest_exec_control to kvm_vcpu_arch, to be used for > runtime checks for Intel Mode Based Execution Control (MBEC) and > AMD Guest Mode Execute Control (GMET). > > Signed-off-by: Jon Kohler > > --- > arch/x86/include/asm/kvm_host.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h > index fd37dad38670..192233eb557a 100644 > --- a/arch/x86/include/asm/kvm_host.h > +++ b/arch/x86/include/asm/kvm_host.h > @@ -856,6 +856,8 @@ struct kvm_vcpu_arch { > struct kvm_hypervisor_cpuid kvm_cpuid; > bool is_amd_compatible; > > + bool pt_guest_exec_control; Again, aside from the fast that putting this in kvm_vcpu_arch is wrong, this not worth of a separate patch.