diff options
Diffstat (limited to 'arch/x86/kvm/x86.h')
| -rw-r--r-- | arch/x86/kvm/x86.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 8c97bac9a895..306a1b77581f 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -47,6 +47,16 @@ static inline int is_long_mode(struct kvm_vcpu *vcpu) #endif } +static inline bool is_64_bit_mode(struct kvm_vcpu *vcpu) +{ + int cs_db, cs_l; + + if (!is_long_mode(vcpu)) + return false; + kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l); + return cs_l; +} + static inline bool mmu_is_nested(struct kvm_vcpu *vcpu) { return vcpu->arch.walk_mmu == &vcpu->arch.nested_mmu; @@ -108,6 +118,23 @@ static inline bool vcpu_match_mmio_gpa(struct kvm_vcpu *vcpu, gpa_t gpa) return false; } +static inline unsigned long kvm_register_readl(struct kvm_vcpu *vcpu, + enum kvm_reg reg) +{ + unsigned long val = kvm_register_read(vcpu, reg); + + return is_64_bit_mode(vcpu) ? val : (u32)val; +} + +static inline void kvm_register_writel(struct kvm_vcpu *vcpu, + enum kvm_reg reg, + unsigned long val) +{ + if (!is_64_bit_mode(vcpu)) + val = (u32)val; + return kvm_register_write(vcpu, reg, val); +} + 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, int inc_eip); |