Messages in this thread |  | | From | Nadav Amit <> | Subject | [PATCH 0/4] iommu/amd: Enable page-selective flushes | Date | Sat, 1 May 2021 23:59:55 -0700 |
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From: Nadav Amit <namit@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 <joro@8bytes.org> Cc: Will Deacon <will@kernel.org> Cc: Jiajun Cao <caojiajun@vmware.com> Cc: iommu@lists.linux-foundation.org Cc: linux-kernel@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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