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| author | Joerg Roedel <joerg.roedel@amd.com> | 2010-12-07 19:15:05 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-12-08 18:28:37 +0300 |
| commit | 24d1b15f72abe3465e871d11cfc9dc34d1aab8b2 (patch) | |
| tree | 41cec3e52d2bfad89426244159dab97e1c240f66 /arch/x86/kvm/x86.h | |
| parent | 3ea3aa8cf67d3bbe00a19b6a4013d19efa7d0f41 (diff) | |
| download | linux-24d1b15f72abe3465e871d11cfc9dc34d1aab8b2.tar.xz | |
KVM: SVM: Do not report xsave in supported cpuid
To support xsave properly for the guest the SVM module need
software support for it. As long as this is not present do
not report the xsave as supported feature in cpuid.
As a side-effect this patch moves the bit() helper function
into the x86.h file so that it can be used in svm.c too.
KVM-Stable-Tag.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.h')
| -rw-r--r-- | arch/x86/kvm/x86.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 2cea414489f3..c600da830ce0 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -70,6 +70,11 @@ static inline int is_paging(struct kvm_vcpu *vcpu) return kvm_read_cr0_bits(vcpu, X86_CR0_PG); } +static inline u32 bit(int bitno) +{ + return 1 << (bitno & 31); +} + void kvm_before_handle_nmi(struct kvm_vcpu *vcpu); void kvm_after_handle_nmi(struct kvm_vcpu *vcpu); int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq); |