x86, amd: Use _safe() msr access for GartTlbWlk disable code

The workaround for Bugzilla:

	https://bugzilla.kernel.org/show_bug.cgi?id=33012

introduced a read and a write to the MC4 mask msr.

Unfortunatly this MSR is not emulated by the KVM hypervisor
so that the kernel will get a #GP and crashes when applying
this workaround when running inside KVM.

This issue was reported as:

	https://bugzilla.kernel.org/show_bug.cgi?id=35132

and is fixed with this patch. The change just let the kernel
ignore any #GP it gets while accessing this MSR by using the
_safe msr access methods.

Reported-by: Török Edwin <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Cc: Maciej Rutecki <[email protected]>
Cc: Avi Kivity <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: <[email protected]> # .39.x
Signed-off-by: Ingo Molnar <[email protected]>

0 files changed, 0 insertions, 0 deletions