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KVM: x86: Add kvm_is_linear_rip

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Based on Gleb's suggestion: Add a helper kvm_is_linear_rip that matches
a given linear RIP against the current one. Use this for guest
single-stepping, more users will follow.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Jan Kiszka
2010-02-23 17:47:55 +01:00
committed by Avi Kivity
parent 116a4752c8
commit f92653eeb4
2 changed files with 16 additions and 9 deletions
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4
arch/x86/include/asm/kvm_host.h
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@@ -362,8 +362,8 @@ struct kvm_vcpu_arch {
u64 *mce_banks;
/* used for guest single stepping over the given code position */
u16 singlestep_cs;
unsigned long singlestep_rip;
/* fields used by HYPER-V emulation */
u64 hv_vapic;
};
@@ -820,4 +820,6 @@ int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
void kvm_define_shared_msr(unsigned index, u32 msr);
void kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip);
#endif /* _ASM_X86_KVM_HOST_H */