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KVM: fix push of wrong eip when doing softint

Sfoglia il codice sorgente 
When doing a soft int, we need to bump eip before pushing it to
the stack.  Otherwise we'll do the int a second time.

[apw@canonical.com: merged eip update as per Jan's recommendation.]
Signed-off-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Serge E. Hallyn
2011-04-13 09:12:54 -05:00
committato da Avi Kivity
parent 4487b3b48d
commit 71f9833bb1
3 ha cambiato i file con 13 aggiunte e 6 eliminazioni
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5
arch/x86/kvm/x86.c
Vedi File

@@ -4423,7 +4423,7 @@ static void init_emulate_ctxt(struct kvm_vcpu *vcpu)
vcpu->arch.emulate_regs_need_sync_from_vcpu = false;
}
int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq)
int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq, int inc_eip)
{
struct decode_cache *c = &vcpu->arch.emulate_ctxt.decode;
int ret;
@@ -4432,7 +4432,8 @@ int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq)
vcpu->arch.emulate_ctxt.decode.op_bytes = 2;
vcpu->arch.emulate_ctxt.decode.ad_bytes = 2;
vcpu->arch.emulate_ctxt.decode.eip = vcpu->arch.emulate_ctxt.eip;
vcpu->arch.emulate_ctxt.decode.eip = vcpu->arch.emulate_ctxt.eip +
inc_eip;
ret = emulate_int_real(&vcpu->arch.emulate_ctxt, &emulate_ops, irq);
if (ret != X86EMUL_CONTINUE)