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KVM: remove realmode_lmsw function.

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Use (get|set)_cr callback to emulate lmsw inside emulator.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Gleb Natapov 2010-03-18 15:20:04 +02:00 committed by Avi Kivity
parent 52a4661737
commit 93a152be5a
3 changed files with 2 additions and 11 deletions
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2
arch/x86/include/asm/kvm_host.h
View File

@ -583,8 +583,6 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
unsigned long *rflags);
void kvm_enable_efer_bits(u64);
int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);

4
arch/x86/kvm/emulate.c
View File

@ -2486,8 +2486,8 @@ twobyte_insn:
c->dst.val = ops->get_cr(0, ctxt->vcpu);
break;
case 6: /* lmsw */
realmode_lmsw(ctxt->vcpu, (u16)c->src.val,
&ctxt->eflags);
ops->set_cr(0, (ops->get_cr(0, ctxt->vcpu) & ~0x0ful) |
(c->src.val & 0x0f), ctxt->vcpu);
c->dst.type = OP_NONE;
break;
case 7: /* invlpg*/

7
arch/x86/kvm/x86.c
View File

@ -4098,13 +4098,6 @@ void realmode_lidt(struct kvm_vcpu *vcpu, u16 limit, unsigned long base)
kvm_x86_ops->set_idt(vcpu, &dt);
}
void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
unsigned long *rflags)
{
kvm_lmsw(vcpu, msw);
*rflags = kvm_get_rflags(vcpu);
}
static int move_to_next_stateful_cpuid_entry(struct kvm_vcpu *vcpu, int i)
{
struct kvm_cpuid_entry2 *e = &vcpu->arch.cpuid_entries[i];