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From: Chao Gao <chao.gao@intel.com>
To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: chao.gao@intel.com, bp@alien8.de, dave.hansen@linux.intel.com,
	hpa@zytor.com, john.allen@amd.com, mingo@redhat.com,
	minipli@grsecurity.net, mlevitsk@redhat.com, pbonzini@redhat.com,
	rick.p.edgecombe@intel.com, seanjc@google.com,
	tglx@linutronix.de, weijiang.yang@intel.com, x86@kernel.org,
	xin@zytor.com
Subject: [PATCH v13 20/21] KVM: nVMX: Advertise new VM-Entry/Exit control bits for CET state
Date: Thu, 21 Aug 2025 06:30:54 -0700	[thread overview]
Message-ID: <20250821133132.72322-21-chao.gao@intel.com> (raw)
In-Reply-To: <20250821133132.72322-1-chao.gao@intel.com>

Advertise new VM-Entry/Exit control bits as all nested support for
CET virtualization, including consistency checks, is in place.

Signed-off-by: Chao Gao <chao.gao@intel.com>
---
v13: new
---
 arch/x86/kvm/vmx/nested.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index edb3b877a0f6..d7e2fb30fc1a 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -7176,7 +7176,7 @@ static void nested_vmx_setup_exit_ctls(struct vmcs_config *vmcs_conf,
 		VM_EXIT_HOST_ADDR_SPACE_SIZE |
 #endif
 		VM_EXIT_LOAD_IA32_PAT | VM_EXIT_SAVE_IA32_PAT |
-		VM_EXIT_CLEAR_BNDCFGS;
+		VM_EXIT_CLEAR_BNDCFGS | VM_EXIT_LOAD_CET_STATE;
 	msrs->exit_ctls_high |=
 		VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR |
 		VM_EXIT_LOAD_IA32_EFER | VM_EXIT_SAVE_IA32_EFER |
@@ -7198,7 +7198,8 @@ static void nested_vmx_setup_entry_ctls(struct vmcs_config *vmcs_conf,
 #ifdef CONFIG_X86_64
 		VM_ENTRY_IA32E_MODE |
 #endif
-		VM_ENTRY_LOAD_IA32_PAT | VM_ENTRY_LOAD_BNDCFGS;
+		VM_ENTRY_LOAD_IA32_PAT | VM_ENTRY_LOAD_BNDCFGS |
+		VM_ENTRY_LOAD_CET_STATE;
 	msrs->entry_ctls_high |=
 		(VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR | VM_ENTRY_LOAD_IA32_EFER |
 		 VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL);
-- 
2.47.3


  parent reply	other threads:[~2025-08-21 13:32 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-21 13:30 [PATCH v13 00/21] Enable CET Virtualization Chao Gao
2025-08-21 13:30 ` [PATCH v13 01/21] KVM: x86: Introduce KVM_{G,S}ET_ONE_REG uAPIs support Chao Gao
2025-08-28 12:58   ` Xiaoyao Li
2025-08-29  0:43     ` Chao Gao
2025-08-29 22:01       ` Sean Christopherson
2025-08-21 13:30 ` [PATCH v13 02/21] KVM: x86: Report XSS as to-be-saved if there are supported features Chao Gao
2025-08-29  6:37   ` Xiaoyao Li
2025-08-21 13:30 ` [PATCH v13 03/21] KVM: x86: Refresh CPUID on write to guest MSR_IA32_XSS Chao Gao
2025-08-29  6:47   ` Xiaoyao Li
2025-08-29 10:40     ` Chao Gao
2025-08-21 13:30 ` [PATCH v13 04/21] KVM: x86: Initialize kvm_caps.supported_xss Chao Gao
2025-08-29  7:05   ` Xiaoyao Li
2025-08-29 10:29     ` Chao Gao
2025-08-21 13:30 ` [PATCH v13 05/21] KVM: x86: Load guest FPU state when access XSAVE-managed MSRs Chao Gao
2025-08-25  1:52   ` Xin Li
2025-08-25  2:55     ` Chao Gao
2025-08-26  6:54       ` Xin Li
2025-08-27  4:56   ` Xin Li
2025-08-27 15:09     ` Sean Christopherson
2025-08-21 13:30 ` [PATCH v13 06/21] KVM: x86: Add fault checks for guest CR4.CET setting Chao Gao
2025-08-21 13:30 ` [PATCH v13 07/21] KVM: x86: Report KVM supported CET MSRs as to-be-saved Chao Gao
2025-08-21 13:30 ` [PATCH v13 08/21] KVM: VMX: Introduce CET VMCS fields and control bits Chao Gao
2025-08-21 13:30 ` [PATCH v13 09/21] KVM: x86: Enable guest SSP read/write interface with new uAPIs Chao Gao
2025-08-21 13:30 ` [PATCH v13 10/21] KVM: VMX: Emulate read and write to CET MSRs Chao Gao
2025-08-21 13:30 ` [PATCH v13 11/21] KVM: x86: Save and reload SSP to/from SMRAM Chao Gao
2025-08-21 13:30 ` [PATCH v13 12/21] KVM: VMX: Set up interception for CET MSRs Chao Gao
2025-08-21 13:30 ` [PATCH v13 13/21] KVM: VMX: Set host constant supervisor states to VMCS fields Chao Gao
2025-08-21 13:30 ` [PATCH v13 14/21] KVM: x86: Don't emulate instructions guarded by CET Chao Gao
2025-08-21 13:30 ` [PATCH v13 15/21] KVM: x86: Enable CET virtualization for VMX and advertise to userspace Chao Gao
2025-08-21 13:30 ` [PATCH v13 16/21] KVM: nVMX: Virtualize NO_HW_ERROR_CODE_CC for L1 event injection to L2 Chao Gao
2025-08-21 13:30 ` [PATCH v13 17/21] KVM: nVMX: Prepare for enabling CET support for nested guest Chao Gao
2025-08-21 13:30 ` [PATCH v13 18/21] KVM: nVMX: Add consistency checks for CR0.WP and CR4.CET Chao Gao
2025-08-21 13:30 ` [PATCH v13 19/21] KVM: nVMX: Add consistency checks for CET states Chao Gao
2025-08-21 13:30 ` Chao Gao [this message]
2025-08-21 13:30 ` [PATCH v13 21/21] KVM: selftest: Add tests for KVM_{GET,SET}_ONE_REG Chao Gao
2025-08-21 13:35 ` [PATCH v13 00/21] Enable CET Virtualization Chao Gao

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