From: Nadav Amit <na...@vmware.com>
The previous patch, commit 268aa4548277 ("iommu/amd: Page-specific
invalidations for more than one page") was supposed to enable
page-selective IOTLB flushes on AMD.
The patch had an embaressing bug, and I apologize for it.
Analysis as for why this bug did not result in failures raised
additional issues that caused at least most of the IOTLB flushes not to
be page-selective ones.
The first patch corrects the bug from the previous patch. The next
patches enable page-selective invalidations, which were not enabled
despite the previous patch.
Cc: Joerg Roedel <j...@8bytes.org>
Cc: Will Deacon <w...@kernel.org>
Cc: Jiajun Cao <caojia...@vmware.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-ker...@vger.kernel.org
Nadav Amit (4):
iommu/amd: Fix wrong parentheses on page-specific invalidations
iommu/amd: Selective flush on unmap
iommu/amd: Do not sync on page size changes
iommu/amd: Do not use flush-queue when NpCache is on
drivers/iommu/amd/init.c | 7 ++++++-
drivers/iommu/amd/iommu.c | 18 +++++++++++++++---
include/linux/iommu.h | 3 ++-
3 files changed, 23 insertions(+), 5 deletions(-)
--
2.25.1
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