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From: Yang Weijiang <weijiang.yang@intel.com>
To: pbonzini@redhat.com, seanjc@google.com, vkuznets@redhat.com,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Yang Weijiang <weijiang.yang@intel.com>
Subject: [PATCH] KVM: nVMX: Add CET entry/exit load bits to evmcs unsupported list
Date: Wed,  3 Mar 2021 14:04:34 +0800	[thread overview]
Message-ID: <20210303060435.8158-1-weijiang.yang@intel.com> (raw)

CET in nested guest over Hyper-V is not supported for now. Relevant
enabling patches will be posted as a separate patch series.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
---
 arch/x86/kvm/vmx/evmcs.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/vmx/evmcs.h b/arch/x86/kvm/vmx/evmcs.h
index bd41d9462355..25588694eb04 100644
--- a/arch/x86/kvm/vmx/evmcs.h
+++ b/arch/x86/kvm/vmx/evmcs.h
@@ -59,8 +59,10 @@ DECLARE_STATIC_KEY_FALSE(enable_evmcs);
 	 SECONDARY_EXEC_SHADOW_VMCS |					\
 	 SECONDARY_EXEC_TSC_SCALING |					\
 	 SECONDARY_EXEC_PAUSE_LOOP_EXITING)
-#define EVMCS1_UNSUPPORTED_VMEXIT_CTRL (VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL)
-#define EVMCS1_UNSUPPORTED_VMENTRY_CTRL (VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL)
+#define EVMCS1_UNSUPPORTED_VMEXIT_CTRL (VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL | \
+					VM_EXIT_LOAD_CET_STATE)
+#define EVMCS1_UNSUPPORTED_VMENTRY_CTRL (VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL | \
+					 VM_ENTRY_LOAD_CET_STATE)
 #define EVMCS1_UNSUPPORTED_VMFUNC (VMX_VMFUNC_EPTP_SWITCHING)
 
 #if IS_ENABLED(CONFIG_HYPERV)
-- 
2.26.2


             reply	other threads:[~2021-03-03  7:24 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-03  6:04 Yang Weijiang [this message]
2021-03-03  6:04 ` [PATCH v3] KVM: nVMX: Sync L2 guest CET states between L1/L2 Yang Weijiang
2021-03-03 12:24   ` Paolo Bonzini
2021-03-04  6:13     ` Yang Weijiang
2021-03-03  9:36 ` [PATCH] KVM: nVMX: Add CET entry/exit load bits to evmcs unsupported list Vitaly Kuznetsov
2021-03-04  6:10   ` Yang Weijiang
2021-09-29 21:35 ` kernel test robot

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