| commit | 0a79b009525b160081d75cef5dbf45817956acf2 | [log] [tgz] |
|---|---|---|
| author | Avi Kivity <avi@redhat.com> | Tue Sep 01 12:03:25 2009 +0300 |
| committer | Avi Kivity <avi@redhat.com> | Thu Sep 10 18:11:10 2009 +0300 |
| tree | 86dc2671cbd3326e92c8845ce699bdb651d785b5 | |
| parent | 4da748960a6bd7b1e123e01bfa8f2dbcb6be209e [diff] |
KVM: VMX: Check cpl before emulating debug register access Debug registers may only be accessed from cpl 0. Unfortunately, vmx will code to emulate the instruction even though it was issued from guest userspace, possibly leading to an unexpected trap later. Cc: stable@kernel.org Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>