Messages in this thread Patch in this message | | | From | Christoph Hellwig <> | Subject | [PATCH 4/7] x86: remove a stray reference to pci-nommu.c | Date | Fri, 25 May 2018 16:35:09 +0200 |
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This is just the minimal workaround. The file file is mostly either stale and/or duplicative of Documentation/admin-guide/kernel-parameters.txt, but that is much more work than I'm willing to do right now.
Signed-off-by: Christoph Hellwig <hch@lst.de> --- Documentation/x86/x86_64/boot-options.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/x86/x86_64/boot-options.txt b/Documentation/x86/x86_64/boot-options.txt index b297c48389b9..153b3a57fba2 100644 --- a/Documentation/x86/x86_64/boot-options.txt +++ b/Documentation/x86/x86_64/boot-options.txt @@ -187,9 +187,9 @@ PCI IOMMU (input/output memory management unit) - Currently four x86-64 PCI-DMA mapping implementations exist: + Multiple x86-64 PCI-DMA mapping implementations exist, for example: - 1. <arch/x86_64/kernel/pci-nommu.c>: use no hardware/software IOMMU at all + 1. <lib/dma-direct.c>: use no hardware/software IOMMU at all (e.g. because you have < 3 GB memory). Kernel boot message: "PCI-DMA: Disabling IOMMU" -- 2.17.0
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