From: Nadav Amit <[email protected]> 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 <[email protected]> Cc: Will Deacon <[email protected]> Cc: Jiajun Cao <[email protected]> Cc: [email protected] Cc: [email protected] 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 _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
