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Do not stop VM if emulation failed in userspace.

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Continue vcpu execution in case emulation failure happened while vcpu
was in userspace. In this case #UD will be injected into the guest
allowing guest OS to kill offending process and continue.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Gleb Natapov 2010-05-10 11:21:34 +03:00 • committed by Marcelo Tosatti
parent 0af691d779
commit 4513d9232b
5 changed files with 21 additions and 0 deletions
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7
target-i386/kvm.c
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@ -1289,3 +1289,10 @@ void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg)
}
}
#endif /* KVM_CAP_SET_GUEST_DEBUG */
bool kvm_arch_stop_on_emulation_error(CPUState *env)
{
return !(env->cr[0] & CR0_PE_MASK) ||
((env->segs[R_CS].selector & 3) != 3);
}