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From: Binbin Wu <binbin.wu@linux.intel.com>
To: pbonzini@redhat.com, seanjc@google.com, kvm@vger.kernel.org
Cc: rick.p.edgecombe@intel.com, kai.huang@intel.com,
	adrian.hunter@intel.com, reinette.chatre@intel.com,
	xiaoyao.li@intel.com, tony.lindgren@intel.com,
	isaku.yamahata@intel.com, yan.y.zhao@intel.com,
	chao.gao@intel.com, linux-kernel@vger.kernel.org,
	binbin.wu@linux.intel.com
Subject: [PATCH v2 16/20] KVM: TDX: Ignore setting up mce
Date: Thu, 27 Feb 2025 09:20:17 +0800	[thread overview]
Message-ID: <20250227012021.1778144-17-binbin.wu@linux.intel.com> (raw)
In-Reply-To: <20250227012021.1778144-1-binbin.wu@linux.intel.com>

From: Isaku Yamahata <isaku.yamahata@intel.com>

Because vmx_set_mce function is VMX specific and it cannot be used for TDX.
Add vt stub to ignore setting up mce for TDX.

Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
---
TDX "the rest" v2:
- No change.
---
 arch/x86/kvm/vmx/main.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c
index 554975f053ff..d73ea9ce750d 100644
--- a/arch/x86/kvm/vmx/main.c
+++ b/arch/x86/kvm/vmx/main.c
@@ -843,6 +843,14 @@ static void vt_cancel_hv_timer(struct kvm_vcpu *vcpu)
 }
 #endif
 
+static void vt_setup_mce(struct kvm_vcpu *vcpu)
+{
+	if (is_td_vcpu(vcpu))
+		return;
+
+	vmx_setup_mce(vcpu);
+}
+
 static int vt_mem_enc_ioctl(struct kvm *kvm, void __user *argp)
 {
 	if (!is_td(kvm))
@@ -1002,7 +1010,7 @@ struct kvm_x86_ops vt_x86_ops __initdata = {
 	.cancel_hv_timer = vt_cancel_hv_timer,
 #endif
 
-	.setup_mce = vmx_setup_mce,
+	.setup_mce = vt_setup_mce,
 
 #ifdef CONFIG_KVM_SMM
 	.smi_allowed = vt_smi_allowed,
-- 
2.46.0


  parent reply	other threads:[~2025-02-27  1:19 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-27  1:20 [PATCH v2 00/20] KVM: TDX: TDX "the rest" part Binbin Wu
2025-02-27  1:20 ` [PATCH v2 01/20] KVM: TDX: Handle EPT violation/misconfig exit Binbin Wu
2025-02-27  1:20 ` [PATCH v2 02/20] KVM: TDX: Detect unexpected SEPT violations due to pending SPTEs Binbin Wu
2025-02-27  1:20 ` [PATCH v2 03/20] KVM: TDX: Retry locally in TDX EPT violation handler on RET_PF_RETRY Binbin Wu
2025-02-27  1:20 ` [PATCH v2 04/20] KVM: TDX: Kick off vCPUs when SEAMCALL is busy during TD page removal Binbin Wu
2025-02-27  1:20 ` [PATCH v2 05/20] KVM: TDX: Handle TDX PV CPUID hypercall Binbin Wu
2025-02-27  1:20 ` [PATCH v2 06/20] KVM: TDX: Handle TDX PV HLT hypercall Binbin Wu
2025-02-27  1:20 ` [PATCH v2 07/20] KVM: x86: Move KVM_MAX_MCE_BANKS to header file Binbin Wu
2025-02-27  1:20 ` [PATCH v2 08/20] KVM: TDX: Implement callbacks for MSR operations Binbin Wu
2025-02-27  1:20 ` [PATCH v2 09/20] KVM: TDX: Handle TDX PV rdmsr/wrmsr hypercall Binbin Wu
2025-02-27  1:20 ` [PATCH v2 10/20] KVM: TDX: Enable guest access to LMCE related MSRs Binbin Wu
2025-02-27  1:20 ` [PATCH v2 11/20] KVM: TDX: Handle TDG.VP.VMCALL<GetTdVmCallInfo> hypercall Binbin Wu
2025-02-27  1:20 ` [PATCH v2 12/20] KVM: TDX: Add methods to ignore accesses to CPU state Binbin Wu
2025-02-27  1:20 ` [PATCH v2 13/20] KVM: TDX: Add method to ignore guest instruction emulation Binbin Wu
2025-02-27  1:20 ` [PATCH v2 14/20] KVM: TDX: Add methods to ignore VMX preemption timer Binbin Wu
2025-02-27  1:20 ` [PATCH v2 15/20] KVM: TDX: Add methods to ignore accesses to TSC Binbin Wu
2025-02-27  1:20 ` Binbin Wu [this message]
2025-02-27  1:20 ` [PATCH v2 17/20] KVM: TDX: Add a method to ignore hypercall patching Binbin Wu
2025-02-27  1:20 ` [PATCH v2 18/20] KVM: TDX: Enable guest access to MTRR MSRs Binbin Wu
2025-02-27  1:20 ` [PATCH v2 19/20] KVM: TDX: Make TDX VM type supported Binbin Wu
2025-02-27  1:20 ` [PATCH v2 20/20] Documentation/virt/kvm: Document on Trust Domain Extensions (TDX) Binbin Wu

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