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| author | Filippo Sironi <sironi@amazon.de> | 2019-09-10 19:49:21 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-29 10:21:48 +0100 |
| commit | c362201c51b92b382798a06c610ea599aff00673 (patch) | |
| tree | 3b4201ef8819d3097f1a8ed0a69071a25417fc65 /drivers/iommu | |
| parent | 48d127dbeee236a161cdb3e05055b2a8e645afe4 (diff) | |
iommu/amd: Wait for completion of IOTLB flush in attach_device
[ Upstream commit 0b15e02f0cc4fb34a9160de7ba6db3a4013dc1b7 ]
To make sure the domain tlb flush completes before the
function returns, explicitly wait for its completion.
Signed-off-by: Filippo Sironi <sironi@amazon.de>
Fixes: 42a49f965a8d ("amd-iommu: flush domain tlb when attaching a new device")
[joro: Added commit message and fixes tag]
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 0ad8b7c78a43..66a406e87e11 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2184,6 +2184,8 @@ static int attach_device(struct device *dev, */ domain_flush_tlb_pde(domain); + domain_flush_complete(domain); + return ret; } |