linux_dsm_epyc7002/include
Jean-Philippe Brucker 58b55c859a iommu: Add padding to struct iommu_fault
Ease future extensions of struct iommu_fault_page_request and struct
iommu_fault_unrecoverable by adding a few bytes of padding. That way, a
new field can be added to either of these structures by simply introducing
a new flag. To extend it after the size limit is reached, a new fault
reporting structure will have to be negotiated with userspace.

With 56 bytes of padding, the total size of iommu_fault is 64 bytes and
fits in a cache line on a lot of contemporary machines, while providing 16
and 24 bytes of extension to structures iommu_fault_page_request and
iommu_fault_unrecoverable respectively.

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-06-18 17:14:35 +02:00
..
acpi More ACPI updates for 5.2-rc1 2019-05-15 08:58:49 -07:00
asm-generic treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 2019-05-24 17:27:13 +02:00
clocksource
crypto treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
drm drm pull request for 5.2 2019-05-08 21:35:19 -07:00
dt-bindings treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
keys treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
kvm
linux iommu: Add recoverable fault reporting 2019-06-12 10:19:06 +02:00
math-emu
media treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
memory
misc treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
net treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104 2019-05-24 17:39:00 +02:00
pcmcia
ras
rdma RDMA: Add EFA related definitions 2019-05-06 13:47:50 -03:00
scsi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 59 2019-05-24 17:36:44 +02:00
soc Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 11:11:20 -07:00
sound treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
target
trace treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
uapi iommu: Add padding to struct iommu_fault 2019-06-18 17:14:35 +02:00
video treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 27 2019-05-24 17:27:10 +02:00
xen