]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commitdiff
KVM: nVMX: eVMCS: Filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER
authorVitaly Kuznetsov <vkuznets@redhat.com>
Wed, 12 Jan 2022 17:01:31 +0000 (18:01 +0100)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 28 Jan 2022 12:38:25 +0000 (07:38 -0500)
Enlightened VMCS v1 doesn't have VMX_PREEMPTION_TIMER_VALUE field,
PIN_BASED_VMX_PREEMPTION_TIMER is also filtered out already so it makes
sense to filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER too.

Note, none of the currently existing Windows/Hyper-V versions are known
to enable 'save VMX-preemption timer value' when eVMCS is in use, the
change is aimed at making the filtering future proof.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220112170134.1904308-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/vmx/evmcs.h

index 16731d2cf231b5dc4da33c80093a044afb1227af..3a461a32128b2d72e5ba40a8e7351b97bf3df059 100644 (file)
@@ -59,7 +59,9 @@ 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_VMEXIT_CTRL                                 \
+       (VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL |                           \
+        VM_EXIT_SAVE_VMX_PREEMPTION_TIMER)
 #define EVMCS1_UNSUPPORTED_VMENTRY_CTRL (VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL)
 #define EVMCS1_UNSUPPORTED_VMFUNC (VMX_VMFUNC_EPTP_SWITCHING)