RE: [kvm-devel] [PATCH][RFC] SVM: Add Support for Nested Paging in AMD Fam16 CPUs

Joerg Roedel wrote:
Hi,

here is the first release of patches for KVM to support the Nested
Paging
(NPT) feature of AMD QuadCore CPUs for comments and public testing.
This
feature improves the guest performance significantly. I measured an
improvement of around 17% using kernbench in my first tests.

This patch series is basically tested with Linux guests (32 bit legacy
paging, 32 bit PAE paging and 64 bit Long Mode). Also tested with
Windows
Vista 32 bit and 64 bit. All these guests ran successfully with these
patches. The patch series only enables NPT for 64 bit Linux hosts at
the
moment.

Please give these patches a good and deep testing. I hope we have this
patchset ready for merging soon.

Good. We also ported the EPT patch for Xen to KVM, which we submitted
last year. We've been cleaning up the patch with Avi. We are working on
live migration support now, and we'll submit the patch once it's done.
So please stay tuned.


Joerg


Jun
---
Intel Open Source Technology Center
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