[Xen-devel] Re: [PATCH] HVM/ASID: enable flush-by-ASID for HVM

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 18/05/2011 18:37, "Wei Huang" <wei.huang2@xxxxxxx> wrote:

> Hi Keir and Tim,
> 
> The attached file enables flush-by-ASID for HVM. The patch mainly
> touches asid.c file to minimize the impacts on other HVM components. We
> also keep ASID interface intact by adding core_id as part of ASID
> comparison. Please refer to the patch description for design details.
> 
> This version was tested on real hardware successfully. Please review it.

I wouldn't want to spend my time on it before knowing: What's the
performance win?

 -- Keir

> Thanks,
> -Wei
> 
>   arch/x86/hvm/asid.c           |   55
> ++++++++++++++++++++++++++++++++----------
>   arch/x86/hvm/svm/asid.c       |   24 ++++++++++++++----
>   arch/x86/hvm/svm/svm.c        |    6 ++--
>   arch/x86/hvm/vmx/vmcs.c       |    1
>   arch/x86/hvm/vmx/vmx.c        |    2 -
>   include/asm-x86/hvm/asid.h    |   14 +++++++++-
>   include/asm-x86/hvm/svm/svm.h |    1
>   include/asm-x86/hvm/vcpu.h    |    1
>   8 files changed, 81 insertions(+), 23 deletions(-)
> 
> 



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