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Re: [Xen-devel] [PATCH][v3] PV featured HVM(hybrid) support in Xen

To: "Yang, Sheng" <sheng.yang@xxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH][v3] PV featured HVM(hybrid) support in Xen
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Mon, 08 Feb 2010 08:12:54 +0000
Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>, Tim Deegan <Tim.Deegan@xxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On 08/02/2010 08:05, "Yang, Sheng" <sheng.yang@xxxxxxxxx> wrote:

> Hi Keir
> 
> Here is the latest (hybrid) patchset.
> 
> Change from v2:
> 
> 1. Change the name "hybrid" to "PV featured HVM", as well as flag and macro
> names.
> 2. Merge the hypercall page with HVM.
> 3. Clean up VIRQ delivery mechanism, fixing the lock issue.
> 4. Remove the reserved the region in E820(but another issue remains, I can't
> get location of grant table elegantly, as I described in Linux part patches)
> 
> Please review, thanks!

Why can't you leave LAPIC available for things like INIT-SIPI-SIPI, and
simply not use it for things you need higher perf for?

 -- Keir



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