diff options
| author | Sean Christopherson <seanjc@google.com> | 2023-03-10 16:46:00 -0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-04-06 14:57:22 -0700 |
| commit | 5757f5b9562244e4b63f65576c16ca9eb21f81d2 (patch) | |
| tree | 715573ee5a347850c4db3a57a01eb250a81d6c1b /arch/x86/kvm/x86.h | |
| parent | fb3146b4dc3bc6d0c0402a75f21d628eccf9bf8c (diff) | |
KVM: x86: Add macros to track first...last VMX feature MSRs
Add macros to track the range of VMX feature MSRs that are emulated by
KVM to reduce the maintenance cost of extending the set of emulated MSRs.
Note, KVM doesn't necessarily emulate all known/consumed VMX MSRs, e.g.
PROCBASED_CTLS3 is consumed by KVM to enable IPI virtualization, but is
not emulated as KVM doesn't emulate/virtualize IPI virtualization for
nested guests.
No functional change intended.
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://lore.kernel.org/r/20230311004618.920745-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/x86.h')
| -rw-r--r-- | arch/x86/kvm/x86.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 754190af1791..4bc483d082ee 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -40,6 +40,14 @@ void kvm_spurious_fault(void); failed; \ }) +/* + * The first...last VMX feature MSRs that are emulated by KVM. This may or may + * not cover all known VMX MSRs, as KVM doesn't emulate an MSR until there's an + * associated feature that KVM supports for nested virtualization. + */ +#define KVM_FIRST_EMULATED_VMX_MSR MSR_IA32_VMX_BASIC +#define KVM_LAST_EMULATED_VMX_MSR MSR_IA32_VMX_VMFUNC + #define KVM_DEFAULT_PLE_GAP 128 #define KVM_VMX_DEFAULT_PLE_WINDOW 4096 #define KVM_DEFAULT_PLE_WINDOW_GROW 2 |