diff options
| author | Avi Kivity <avi@redhat.com> | 2010-01-21 15:31:48 +0200 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 12:36:04 -0300 |
| commit | 3eeb3288bcbf64da90afc26389b8844df7c34912 (patch) | |
| tree | 1b7bc55641015605da0b415a928ecf39aac64a2e /arch/x86/kvm/x86.c | |
| parent | 6b52d18605f580bdffaffd48c8da228c3e848deb (diff) | |
KVM: Add a helper for checking if the guest is in protected mode
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 4db0c8a9082..a4a7d1892f7 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3786,8 +3786,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu) * hypercall generates UD from non zero cpl and real mode * per HYPER-V spec */ - if (kvm_x86_ops->get_cpl(vcpu) != 0 || - !kvm_read_cr0_bits(vcpu, X86_CR0_PE)) { + if (kvm_x86_ops->get_cpl(vcpu) != 0 || !is_protmode(vcpu)) { kvm_queue_exception(vcpu, UD_VECTOR); return 0; } @@ -4751,7 +4750,7 @@ int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, { struct kvm_segment kvm_seg; - if (is_vm86_segment(vcpu, seg) || !(kvm_read_cr0_bits(vcpu, X86_CR0_PE))) + if (is_vm86_segment(vcpu, seg) || !is_protmode(vcpu)) return kvm_load_realmode_segment(vcpu, selector, seg); if (load_segment_descriptor_to_kvm_desct(vcpu, selector, &kvm_seg)) return 1; @@ -5103,7 +5102,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, /* Older userspace won't unhalt the vcpu on reset. */ if (kvm_vcpu_is_bsp(vcpu) && kvm_rip_read(vcpu) == 0xfff0 && sregs->cs.selector == 0xf000 && sregs->cs.base == 0xffff0000 && - !(kvm_read_cr0_bits(vcpu, X86_CR0_PE))) + !is_protmode(vcpu)) vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; vcpu_put(vcpu); |