Re: rdmsr_safe in Linux PV (under Xen) gets an #GP:Re: [Fedora-xen] Running fedora xen on top of KVM?

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On 18/09/2015 15:54, Borislav Petkov wrote:
> On Thu, Sep 17, 2015 at 01:23:31PM -0700, Andy Lutomirski wrote:
>> > Cc: Borislav.  Is TSEG guaranteed to exist?  Can we defer that until
> Why not? It is the tseg base address.
> 
> I think this is kvm injecting a #GP as it is not ignoring this MSR.
> Presumably modprobing kvm with "ignore_msrs=1" or so should hide the
> issue IIUC...

We should return 0 for the tseg MSRs.  KVM always handles them in the
northbridge emulation code, like Intel chipsets do.  Will send a patch.

Paolo
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