tree a3501849792f4fb681d0ccb6dc4135e455b9b57e
parent 4c7da8cb43c09e71a405b5aeaa58a1dbac3c39e9
author Joerg Roedel <joerg.roedel@amd.com> 1266592986 +0100
committer Avi Kivity <avi@redhat.com> 1272188062 +0300

KVM: SVM: Don't sync nested cr8 to lapic and back

This patch makes syncing of the guest tpr to the lapic
conditional on !nested. Otherwise a nested guest using the
TPR could freeze the guest.
Another important change this patch introduces is that the
cr8 intercept bits are no longer ORed at vmrun emulation if
the guest sets VINTR_MASKING in its VMCB. The reason is that
nested cr8 accesses need alway be handled by the nested
hypervisor because they change the shadow version of the
tpr.

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