From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] kvm: sync registers?
Date: Fri, 7 Nov 2008 17:31:53 +0100 [thread overview]
Message-ID: <200811071631.54494.paul@codesourcery.com> (raw)
In-Reply-To: <49144ABA.1030606@codemonkey.ws>
On Friday 07 November 2008, Anthony Liguori wrote:
> Gerd Hoffmann wrote:
> > Hi,
> >
> > How does kvm sync registers between kernel and qemu env?
> > I see there are kvm_arch_{get,put}_registers() functions in
> > target-i386/kvm.c, but grep doesn't find a single call of them?
>
> Right now, it doesn't. We should probably sync registers in the same
> places that kvm-userspace does (gdbstubs, vmport, etc.).
>
> I tried to always sync registers on every exit but this causes boot to
> fail. The same is true of kvm-userspace though and I've been meaning to
> dig into why this is.
Maybe due to do with inconsistencies between the segment register contents and
the descriptor tables? I know I've written code that relies on this feature.
Paul
next prev parent reply other threads:[~2008-11-07 16:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-07 10:22 [Qemu-devel] kvm: sync registers? Gerd Hoffmann
2008-11-07 14:03 ` Anthony Liguori
2008-11-07 15:57 ` Gerd Hoffmann
2008-11-07 16:25 ` Gerd Hoffmann
2008-11-07 16:31 ` Paul Brook [this message]
2008-11-07 16:40 ` Anthony Liguori
2008-11-09 14:30 ` Avi Kivity
2008-11-07 17:01 ` Gerd Hoffmann
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