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KVM: MMU: Store nx bit for large page shadows
authorAvi Kivity <avi@qumranet.com>
Tue, 10 Jul 2007 14:50:55 +0000 (17:50 +0300)
committerAvi Kivity <avi@qumranet.com>
Fri, 20 Jul 2007 17:16:29 +0000 (20:16 +0300)
commitd55e2cb20123cdb5020ec4a2b2f1eace5038c292
tree6a02bb893638ded6448ee78687ee25072ea82360tree | snapshot (tar.gz zip)
parent2cb7e714229681408e323852bed939989faf6991commit | diff
KVM: MMU: Store nx bit for large page shadows

We need to distinguish between large page shadows which have the nx bit set
and those which don't.  The problem shows up when booting a newer smp Linux
kernel, where the trampoline page (which is in real mode, which uses the
same shadow pages as large pages) is using the same mapping as a kernel data
page, which is mapped using nx, causing kvm to spin on that page.

Signed-off-by: Avi Kivity <avi@qumranet.com>
drivers/kvm/kvm.h diff | blob | blame | history
drivers/kvm/paging_tmpl.h diff | blob | blame | history