From: Joerg Roedel <[email protected]> This patch introduces a generic representation of guest-mode fpr a vcpu. This currently only exists in the SVM code. Having this representation generic will help making the non-svm code aware of nesting when this is necessary.
Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 2fe1743..e35c43f 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -779,6 +779,7 @@ enum { #define HF_VINTR_MASK (1 << 2) #define HF_NMI_MASK (1 << 3) #define HF_IRET_MASK (1 << 4) +#define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */ /* * Hardware virtualization extension instructions may fault if a diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h index 975bb45..95ac3af 100644 --- a/arch/x86/kvm/kvm_cache_regs.h +++ b/arch/x86/kvm/kvm_cache_regs.h @@ -84,4 +84,19 @@ static inline u64 kvm_read_edx_eax(struct kvm_vcpu *vcpu) | ((u64)(kvm_register_read(vcpu, VCPU_REGS_RDX) & -1u) << 32); } +static inline void enter_guest_mode(struct kvm_vcpu *vcpu) +{ + vcpu->arch.hflags |= HF_GUEST_MASK; +} + +static inline void leave_guest_mode(struct kvm_vcpu *vcpu) +{ + vcpu->arch.hflags &= ~HF_GUEST_MASK; +} + +static inline bool is_guest_mode(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.hflags & HF_GUEST_MASK; +} + #endif -- To unsubscribe from this list: send the line "unsubscribe kvm-commits" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
