tree d413537c05b9cc23cc0725d0aeaa7bb37ae81407
parent 0a59228168d3722b71f8e3dbc623316fb4be78f4
author Avi Kivity <avi@redhat.com> 1293530947 +0200
committer Avi Kivity <avi@redhat.com> 1293618929 +0200

KVM: MMU: Fix incorrect direct gfn for unpaged mode shadow

We use the physical address instead of the base gfn for the four
PAE page directories we use in unpaged mode.  When the guest accesses
an address above 1GB that is backed by a large host page, a BUG_ON()
in kvm_mmu_set_gfn() triggers.

Resolves: https://bugzilla.kernel.org/show_bug.cgi?id=21962
Reported-and-tested-by: Nicolas Prochazka <prochazka.nicolas@gmail.com>
KVM-Stable-Tag.
Signed-off-by: Avi Kivity <avi@redhat.com>