On Thu, 2007-08-23 at 10:46 +0300, Avi Kivity wrote:
> repository: /home/avi/kvm/linux-2.6
> branch: lapic5
> commit 8ed05c33d82a394c90b5dd830513416e59ffcf68
> Author: Yang, Sheng <[EMAIL PROTECTED]>
> Date: Wed Aug 22 15:03:15 2007 +0300
>
> KVM: VMX: Use shadow TPR/cr8 for 64-bits guests
>
> This patch enables TPR shadow of VMX on CR8 access. 64bit Windows using
> CR8 access TPR frequently. The TPR shadow can improve the performance of
> access TPR by not causing vmexit.
>
I remember when I added something similar to the lapic series that both
of my C2D systems (Merom + Woodcrest) reported that they didn't support
the feature in the HW. Since those were fairly new, which ones *do*
support this (out of curiosity), or is there a microcode update floating
around out there ;).
-Greg
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