[Xen-devel] Re: [Patch] [HVM] Limit MTRR virtualization for VMX

To:	Nitin A Kamble <nitin.a.kamble@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	[Xen-devel] Re: [Patch] [HVM] Limit MTRR virtualization for VMX guests to 8 registers
From:	Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date:	Fri, 17 Apr 2009 09:04:39 +0100
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On 16/04/2009 23:32, "Nitin A Kamble" <nitin.a.kamble@xxxxxxxxx> wrote:

> Hi Keir,
>   Bellow is the patch for xen-unstable tree which limits MTRR virtualization
> for VMX guests to 8 registers. Please comment/Apply.

mtrr_state.mtrr_cap isn't directly plumbed to guests. Guests get their own
hardcoded virtualised value for mtrr_cap, set up in arch/x86/hvm/mtrr.c. The
physical mtrr_state.mtrr_cap is only used for interpreting physical MTRR
info as part of PAT/MTRR virtualisation. So all looks correct to me as is.

 -- Keir

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[Xen-devel] Re: [Patch] [HVM] Limit MTRR virtualization for VMX guests t