IOMMU fixes for v3.5-rc1
Two patches are in here which fix AMD IOMMU specific issues. One patch
fixes a long-standing warning on resume because the amd_iommu_resume
function enabled interrupts. The other patch fixes a deadlock in an
error-path of the page-fault request handling code of the IOMMU driver.
iommu/amd: Fix deadlock in ppr-handling error path
In the error path of the ppr_notifer it can happen that the
iommu->lock is taken recursivly. This patch fixes the
problem by releasing the iommu->lock before any notifier is
invoked. This also requires to move the erratum workaround
for the ppr-log (interrupt may be faster than data in the log)
one function up.
Cc: stable@vger.kernel.org # v3.3, v3.4
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
1 file changed
