iommu/core: Add fault reporting mechanism

Browse source

Add iommu fault report mechanism to the IOMMU API, so implementations
could report about mmu faults (translation errors, hardware errors,
etc..).

Fault reports can be used in several ways:
- mere logging
- reset the device that accessed the faulting address (may be necessary
  in case the device is a remote processor for example)
- implement dynamic PTE/TLB loading

A dedicated iommu_set_fault_handler() API has been added to allow
users, who are interested to receive such reports, to provide
their handler.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

...

This commit is contained in:

Ohad Ben-Cohen 2011-09-13 15:25:23 -04:00 • committed by Joerg Roedel

parent 5e1b612cb1

commit 4f3f8d9db3

2 changed files with 64 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

13

drivers/iommu/iommu.c

View file

51

include/linux/iommu.h

View file