From: Xiaoyao Li <xiaoyao.li@intel.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Borislav Petkov <bp@alien8.de>, Xin Li <xin@zytor.com>
Subject: Re: [PATCH v3 4/6] KVM: x86: Add support for RDMSR/WRMSRNS w/ immediate on Intel
Date: Mon, 1 Sep 2025 12:13:11 +0800 [thread overview]
Message-ID: <424e2aaa-04df-4c7e-a7f9-c95f554bd847@intel.com> (raw)
In-Reply-To: <20250805202224.1475590-5-seanjc@google.com>
On 8/6/2025 4:22 AM, Sean Christopherson wrote:
> +static int handle_rdmsr_imm(struct kvm_vcpu *vcpu)
> +{
> + return kvm_emulate_rdmsr_imm(vcpu, vmx_get_exit_qual(vcpu),
> + vmx_get_msr_imm_reg(vcpu));
> +}
> +
> +static int handle_wrmsr_imm(struct kvm_vcpu *vcpu)
> +{
> + return kvm_emulate_wrmsr_imm(vcpu, vmx_get_exit_qual(vcpu),
> + vmx_get_msr_imm_reg(vcpu));
> +}
We need to inject #UD for !guest_cpu_has(X86_FEATURE_MSR_IMM)
next prev parent reply other threads:[~2025-09-01 4:13 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-05 20:22 [PATCH v3 0/6] KVM: VMX: Handle the immediate form of MSR instructions Sean Christopherson
2025-08-05 20:22 ` [PATCH v3 1/6] x86/cpufeatures: Add a CPU feature bit for MSR immediate form instructions Sean Christopherson
2025-08-05 20:22 ` [PATCH v3 2/6] KVM: x86: Rename local "ecx" variables to "msr" and "pmc" as appropriate Sean Christopherson
2025-08-06 15:42 ` Xin Li
2025-08-05 20:22 ` [PATCH v3 3/6] KVM: x86: Rename handle_fastpath_set_msr_irqoff() to handle_fastpath_wrmsr() Sean Christopherson
2025-08-06 15:48 ` Xin Li
2025-08-05 20:22 ` [PATCH v3 4/6] KVM: x86: Add support for RDMSR/WRMSRNS w/ immediate on Intel Sean Christopherson
2025-09-01 4:13 ` Xiaoyao Li [this message]
2025-09-01 6:34 ` Binbin Wu
2025-09-01 7:04 ` Xin Li
2025-09-01 7:22 ` Xiaoyao Li
2025-09-02 14:50 ` Sean Christopherson
2025-09-02 15:46 ` Xin Li
2025-09-03 4:43 ` Xiaoyao Li
2025-09-18 18:33 ` Sean Christopherson
2025-08-05 20:22 ` [PATCH v3 5/6] KVM: VMX: Support the immediate form of WRMSRNS in the VM-Exit fastpath Sean Christopherson
2025-08-05 20:22 ` [PATCH v3 6/6] KVM: x86: Advertise support for the immediate form of MSR instructions Sean Christopherson
2025-08-06 15:38 ` [PATCH v3 0/6] KVM: VMX: Handle " Xin Li
2025-08-19 23:12 ` Sean Christopherson
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