On 09/06/2010 06:55 PM, Joerg Roedel wrote:
(Now with correct Cc-list. I accidentially copied the wrong line from
MAINTAINERS in the first post of this. Sorry for the double-post)
Hi Avi, Marcelo,
here is finally the third round of my NPT virtualization patches for KVM. It
took a while to get everything running (including KVM itself) on 32 bit again
to actually test it. But testing on 32 bit host and with a 32 bit hypervisor
was a very good idea. I found some serious bugs and shortcomings in my code
that are fixed now in v3.
<snip>
This patchset applies on todays avi/master + the three patches I sent end of
last week. These patches are necessary for some of the tests above to run.
For the curious and impatient user I put everything in a branch on kernel.org.
If you want to test it you can pull the tree from
git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-kvm.git npt-virt-v3
Please review and/or apply these patches if considered good enough. Otherwise I
appreciate your feedback.
Very impressive patchset. It's broken out so finely that the careful
reader gets the feeling he understands every little detail, without
noticing you've introduced recursion into the kvm mmu.
The little nit regarding patch 10 can be addressed in a follow-on patch.
Reviewed-by: Avi Kivity <avi@xxxxxxxxxx>
Please also post a unit test that checks that nested page faults for l1
ptes with bad NX, U, W, or reserved bits set are correctly intercepted
and reported. W should work already if you tested nested vga, but the
rest are untested during normal operation and pose a security problem if
they are incorrect.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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