Messages in this thread | | | Date | Tue, 31 Aug 2021 17:32:07 -0400 | From | Alyssa Rosenzweig <> | Subject | Re: [PATCH v2 0/8] Support IOMMU page sizes larger than the CPU page size |
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> Some background: On the Apple M1 the IOMMUs are hardwired to only support 16 KB pages. > We'd still like to boot Linux with 4KB pages though because that's what most distros > ship these days. This patch series adds support for that setup to the IOMMU DMA API.
This isn't just a distro issue -- efficient x86_64 emulation will rely on 4KB as well (Rosetta, FEX, ...). Telling distros to use 16KB kernels for Apple parts is just kicking the can down the road -- we want this series even for kernels we build ourselves.
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