KVM: X86: Introduce generic guest-mode representation
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 <joerg.roedel@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Родитель
6389ee9463
Коммит
ec9e60b219
|
@ -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
|
||||
|
|
|
@ -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
|
||||
|
|
Загрузка…
Ссылка в новой задаче