From: Bandan Das <bsd@redhat.com>
To: coreys <coreys@affinitygs.com>
Cc: kvm@vger.kernel.org
Subject: Re: Error upgrading vm from windows 8 to 8.1
Date: Fri, 27 Mar 2015 16:54:21 -0400 [thread overview]
Message-ID: <jpgbnjenoua.fsf@redhat.com> (raw)
In-Reply-To: <assp.05284acecd.5515BA27.7040009@affinitygs.com> (coreys@affinitygs.com's message of "Fri, 27 Mar 2015 15:14:31 -0500")
coreys <coreys@affinitygs.com> writes:
> When I try to upgrade my guest windows 8 vm to window 8.1. I get the
> error of processor doesn't support CompareExchange128. Haven not been
> able to find any information about this error.
I think that's because cmpxchg16b is not emulated yet:
static int em_cmpxchg8b(struct x86_emulate_ctxt *ctxt)
{
u64 old = ctxt->dst.orig_val64;
if (ctxt->dst.bytes == 16)
return X86EMUL_UNHANDLEABLE;
...
prev parent reply other threads:[~2015-03-27 20:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-27 20:14 Error upgrading vm from windows 8 to 8.1 coreys
2015-03-27 20:54 ` Bandan Das [this message]
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