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| author | Avi Kivity <avi@redhat.com> | 2009-05-31 22:58:47 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-09-10 08:32:46 +0300 |
| commit | 6de4f3ada40b336522250a7832a0cc4de8856589 (patch) | |
| tree | 90920846774aa0fb0fb47ac245fcf5f8b73afcee /arch/x86/kvm/kvm_cache_regs.h | |
| parent | 8f5d549f028056d6ad6044f2d9e27ecf361d955e (diff) | |
| download | kernel-crypto-6de4f3ada40b336522250a7832a0cc4de8856589.tar.gz kernel-crypto-6de4f3ada40b336522250a7832a0cc4de8856589.tar.xz kernel-crypto-6de4f3ada40b336522250a7832a0cc4de8856589.zip | |
KVM: Cache pdptrs
Instead of reloading the pdptrs on every entry and exit (vmcs writes on vmx,
guest memory access on svm) extract them on demand.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/kvm_cache_regs.h')
| -rw-r--r-- | arch/x86/kvm/kvm_cache_regs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h index 1ff819dce7d..7bcc5b6a440 100644 --- a/arch/x86/kvm/kvm_cache_regs.h +++ b/arch/x86/kvm/kvm_cache_regs.h @@ -29,4 +29,13 @@ static inline void kvm_rip_write(struct kvm_vcpu *vcpu, unsigned long val) kvm_register_write(vcpu, VCPU_REGS_RIP, val); } +static inline u64 kvm_pdptr_read(struct kvm_vcpu *vcpu, int index) +{ + if (!test_bit(VCPU_EXREG_PDPTR, + (unsigned long *)&vcpu->arch.regs_avail)) + kvm_x86_ops->cache_reg(vcpu, VCPU_EXREG_PDPTR); + + return vcpu->arch.pdptrs[index]; +} + #endif |