xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/vfio: Implement IOMMU driver for VFIO

Browse Source 
VFIO implements platform independent stuff such as
a PCI driver, BAR access (via read/write on a file descriptor
or direct mapping when possible) and IRQ signaling.

The platform dependent part includes IOMMU initialization
and handling.  This implements an IOMMU driver for VFIO
which does mapping/unmapping pages for the guest IO and
provides information about DMA window (required by a POWER
guest).

Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Alexey Kardashevskiy
2013-05-21 13:33:10 +10:00
committed by Benjamin Herrenschmidt
parent 4e13c1ac6b
commit 5ffd229c02
6 changed files with 482 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/vfio/vfio.c
View File

@@ -1415,6 +1415,7 @@ static int __init vfio_init(void)
* drivers.
*/
request_module_nowait("vfio_iommu_type1");
request_module_nowait("vfio_iommu_spapr_tce");
return 0;