iommu/vt-d: Clear Page Request Overflow fault bit
authorLu Baolu <baolu.lu@linux.intel.com>
Fri, 3 Nov 2017 16:51:33 +0000 (10:51 -0600)
committerAlex Williamson <alex.williamson@redhat.com>
Fri, 3 Nov 2017 16:51:33 +0000 (10:51 -0600)
commit973b546451fdf11e518cc96d1b137af893a38db5
treecf60bbbf85f1a4dd632669c60119ea382a8decdc
parent2e2e35d512798193b4165ed884a5d1d9b181e231
iommu/vt-d: Clear Page Request Overflow fault bit

Currently Page Request Overflow bit in IOMMU Fault Status register
is not cleared. Not clearing this bit would mean that any  future
page-request is going to be automatically dropped by IOMMU.

Suggested-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
drivers/iommu/dmar.c
include/linux/intel-iommu.h