| To: | "Dong, Eddie" <eddie.dong@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel][Patch] MTRR virtualization |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | 2006年6月19日 08:30:21 +0100 |
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| Delivery-date: | 2006年6月19日 00:36:40 -0700 |
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On 19 Jun 2006, at 08:18, Dong, Eddie wrote:
Add MTRR virtualization to set right memory type for direct IO space. Otherwise setting "WB" for memory backed RAM space.
Two things:1. What is this for? I don't understand the higher-level purpose of this MTRR support, since HVM guests don't currently do direct I/O. 2. MTRR MSRs are architectural -- the big blob of support you've added for those belongs in an hvm-generic file. In general I think we need common msr read/write functions for dealing with non-processor-specific MSRs. There's way too much almost-identical or actually-identical vmx and svm-specific code right now.
-- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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