Re: [PATCH 0/7] Support for GB pages in KVM

From: Avi Kivity
Date: Sun Mar 29 2009 - 08:02:05 EST


Marcelo Tosatti wrote:
On Fri, Mar 27, 2009 at 03:31:52PM +0100, Joerg Roedel wrote:
Hi,

this patchset extends the KVM MMU implementation to support 1GB pages as
supported by AMD family 16 processors. These patches enable support for
1 GB pages with Nested Paging. Support for these pages in the shadow
paging code was also developed but does not run stable yet. The patch
for shadow-paging support is not included in this series and will be
sent out seperatly.

Looks generally sane. I'm not sure its even worthwhile to support
GBpages with softmmu, because the chance of finding an area without
shadowed (write protected) pages is much smaller than with 2MB pages.

If the guest uses 1GB pages in userspace, then these pages would not have any write protected subpages.

--
error compiling committee.c: too many arguments to function

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