diff options
| author |   Paolo Bonzini <pbonzini@redhat.com> | 2014-12-03 14:34:47 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-12-05 13:57:15 +0100 |
| commit | 5c404cabd1b5c125653ac573cb9284bdf42b658a (patch) | |
| tree | 772a563c5308cbb5ce03d8eb2637032521ee4a05 /arch/x86/kvm/cpuid.c | |
| parent | KVM: x86: support XSAVES usage in the host (diff) | |
| download | linux-dev-5c404cabd1b5c125653ac573cb9284bdf42b658a.tar.xz linux-dev-5c404cabd1b5c125653ac573cb9284bdf42b658a.zip | |
KVM: x86: use F() macro throughout cpuid.c
For code that deals with cpuid, this makes things a bit more readable.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index a4f5ac46226c..11f09a2b31a0 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -53,6 +53,8 @@ u64 kvm_supported_xcr0(void) return xcr0; } +#define F(x) bit(X86_FEATURE_##x) + int kvm_update_cpuid(struct kvm_vcpu *vcpu) { struct kvm_cpuid_entry2 *best; @@ -64,13 +66,13 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu) /* Update OSXSAVE bit */ if (cpu_has_xsave && best->function == 0x1) { - best->ecx &= ~(bit(X86_FEATURE_OSXSAVE)); + best->ecx &= ~F(OSXSAVE); if (kvm_read_cr4_bits(vcpu, X86_CR4_OSXSAVE)) - best->ecx |= bit(X86_FEATURE_OSXSAVE); + best->ecx |= F(OSXSAVE); } if (apic) { - if (best->ecx & bit(X86_FEATURE_TSC_DEADLINE_TIMER)) + if (best->ecx & F(TSC_DEADLINE_TIMER)) apic->lapic_timer.timer_mode_mask = 3 << 17; else apic->lapic_timer.timer_mode_mask = 1 << 17; @@ -122,8 +124,8 @@ static void cpuid_fix_nx_cap(struct kvm_vcpu *vcpu) break; } } - if (entry && (entry->edx & bit(X86_FEATURE_NX)) && !is_efer_nx()) { - entry->edx &= ~bit(X86_FEATURE_NX); + if (entry && (entry->edx & F(NX)) && !is_efer_nx()) { + entry->edx &= ~F(NX); printk(KERN_INFO "kvm: guest NX capability removed\n"); } } @@ -227,8 +229,6 @@ static void do_cpuid_1_ent(struct kvm_cpuid_entry2 *entry, u32 function, entry->flags = 0; } -#define F(x) bit(X86_FEATURE_##x) - static int __do_cpuid_ent_emulated(struct kvm_cpuid_entry2 *entry, u32 func, u32 index, int *nent, int maxnent) { |