tree ca0c7ec1e95aa3b6087ae0191a19fa1e0d4ca6b0
parent 13db70eca62c5bbb2cbbf6b23dadb94065d363d1
author Roedel, Joerg <Joerg.Roedel@amd.com> 1303306396 +0200
committer Avi Kivity <avi@redhat.com> 1306067966 -0400

KVM: MMU: Make cmpxchg_gpte aware of nesting too

This patch makes the cmpxchg_gpte() function aware of the
difference between l1-gfns and l2-gfns when nested
virtualization is in use.  This fixes a potential
data-corruption problem in the l1-guest and makes the code
work correct (at least as correct as the hardware which is
emulated in this code) again.

Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>