Xen devel - Feb 2010 - MSRs in Xen!

Hi I notice that some of the MSRs aren''t emulated in Xen in the file
xen/include/asm-x86/msr-index.h where I don''t 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.
I''d like to know why these and some others aren''t implemented.
If there''s a specific IA CPU family for which alone we''re
emulating these registers I''d like to know that too.
Regards,
Bhaskar.


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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@lsi.com> 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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