Re: [Xen-devel] [PATCH][SVM][1/2] fix SVM 64bit hv cores>0 reboot/hang issue

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 4 May 2006, at 19:30, Woller, Thomas wrote:

> > You probably need to worry about fs and gs as well. They're
> > not causing you problems now because guests don't usually set
> > those registers to non-zero values, but if they ever do then
> > you'll presumably have problems?
> Just to be clear here, the host registers are what is giving us
> problems. When the microcode loads the host selectors in the vmexit
> microcode logic, then the consistency check fails on ds,es (0x2B)
> due to GDT entries not in memory at that moment.
>
> I think that we'll go with not modifying gs,fs now - they are currently
> NULL in the host context.
Okay, I think you're right. I'll apply the patch.

 -- Keir


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