diff options
| author | Wanpeng Li <wanpengli@tencent.com> | 2018-03-12 12:53:03 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-03-16 22:03:52 +0100 |
| commit | caa057a2cad647fb368a12c8e6c410ac4c28e063 (patch) | |
| tree | 704b511957703f1666b9735a516ec21c3e0865ae /arch/x86/kvm/x86.h | |
| parent | KVM: X86: Provide a capability to disable MWAIT intercepts (diff) | |
| download | linux-caa057a2cad647fb368a12c8e6c410ac4c28e063.tar.xz linux-caa057a2cad647fb368a12c8e6c410ac4c28e063.zip | |
KVM: X86: Provide a capability to disable HLT intercepts
If host CPUs are dedicated to a VM, we can avoid VM exits on HLT.
This patch adds the per-VM capability to disable them.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.h')
| -rw-r--r-- | arch/x86/kvm/x86.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 026b239bf058..6d14589c1a91 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -265,11 +265,18 @@ static inline u64 nsec_to_cycles(struct kvm_vcpu *vcpu, u64 nsec) }) #define KVM_X86_DISABLE_EXITS_MWAIT (1 << 0) -#define KVM_X86_DISABLE_VALID_EXITS (KVM_X86_DISABLE_EXITS_MWAIT) +#define KVM_X86_DISABLE_EXITS_HTL (1 << 1) +#define KVM_X86_DISABLE_VALID_EXITS (KVM_X86_DISABLE_EXITS_MWAIT | \ + KVM_X86_DISABLE_EXITS_HTL) static inline bool kvm_mwait_in_guest(struct kvm *kvm) { return kvm->arch.mwait_in_guest; } +static inline bool kvm_hlt_in_guest(struct kvm *kvm) +{ + return kvm->arch.hlt_in_guest; +} + #endif |