Re: [Xen-devel] MSRs in Xen!

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

We add emulation as needed, and as we work out what the emulation should
actually do (e.g., 'stub out' the MSRs; pass through to host MSRs in some
way; full virt of MSRs; etc).

 -- Keir


On 05/02/2010 11:47, "Jayaraman, Bhaskar" <Bhaskar.Jayaraman@xxxxxxx> wrote:

> Hi I notice that some of the MSRs aren¹t emulated in Xen in the file
> xen/include/asm-x86/msr-index.h where I don¹t see a define for MSR_TEST_CTL
> 0x0033 or MSR_BBL_CR_BUSY 0x011b etc.
>  
> This is causing a GPF in my VM while trying to read or write to them. I¹d like
> to know why these and some others aren¹t implemented. If there¹s a specific IA
> CPU family for which alone we¹re emulating these registers I¹d like to know
> that too.
> Regards,
> Bhaskar. 
> 



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