diff options
| author | Joerg Roedel <jroedel@suse.de> | 2019-04-12 12:50:31 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 19:45:04 +0200 |
| commit | 2984aa6d4a7857b0525e9a46d1d6310403c4ce6c (patch) | |
| tree | 8aee154f177fb65c6e374d1d093aa4a026b1c903 /kernel/irq/manage.c | |
| parent | 4294ec58537d6bb8e6f93acb3f0d9c886976af4e (diff) | |
iommu/amd: Set exclusion range correctly
[ Upstream commit 3c677d206210f53a4be972211066c0f1cd47fe12 ]
The exlcusion range limit register needs to contain the
base-address of the last page that is part of the range, as
bits 0-11 of this register are treated as 0xfff by the
hardware for comparisons.
So correctly set the exclusion range in the hardware to the
last page which is _in_ the range.
Fixes: b2026aa2dce44 ('x86, AMD IOMMU: add functions for programming IOMMU MMIO space')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel/irq/manage.c')
0 files changed, 0 insertions, 0 deletions