diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-02 15:57:06 -0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 17:58:42 +0100 |
| commit | 91661989d17ccec17bca199e7cb1f463ba4e5b78 (patch) | |
| tree | 29796048a49e02fd9bc772662fed62be1d0f23dd /arch/x86/kvm/x86.c | |
| parent | 600087b6146764999949b4a12ce5f7627602c33a (diff) | |
KVM: x86: Move VMX's host_efer to common x86 code
Move host_efer to common x86 code and use it for CPUID's is_efer_nx() to
avoid constantly re-reading the MSR.
No functional change intended.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 935cd40cbae2..d2f1b4746903 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -186,6 +186,9 @@ static struct kvm_shared_msrs __percpu *shared_msrs; | XFEATURE_MASK_BNDCSR | XFEATURE_MASK_AVX512 \ | XFEATURE_MASK_PKRU) +u64 __read_mostly host_efer; +EXPORT_SYMBOL_GPL(host_efer); + static u64 __read_mostly host_xss; struct kvm_stats_debugfs_item debugfs_entries[] = { @@ -9612,6 +9615,8 @@ int kvm_arch_hardware_setup(void) { int r; + rdmsrl_safe(MSR_EFER, &host_efer); + r = kvm_x86_ops->hardware_setup(); if (r != 0) return r; |