[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [RFC PATCH v1 0/7] IPMMU-VMSA support on ARM
From: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx> Hi, all. The purpose of this patch series is to add IPMMU-VMSA support to Xen on ARM. It is VMSA-compatible IOMMU that integrated in the newest Renesas R-Car Gen3 SoCs (ARM). And this IOMMU can't share the page table with the CPU since it doesn't use the same page-table format as the CPU on ARM therefore I name it "Non-shared" IOMMU. This all means that current patch series must be based on "Non-shared" IOMMU support [1] for the IPMMU-VMSA to be functional inside Xen. The IPMMU-VMSA driver as well as the ARM LPAE allocator were directly ported from BSP for Linux the vendor provides: git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas-bsp.git rcar-3.5.3 Patch series was rebased on Xen 4.9.0 release and tested on Renesas R-Car Gen3 H3 ES2.0/M3 based boards with devices assigned to different domains. You can find patch series here: repo: https://github.com/otyshchenko1/xen.git branch: ipmmu_v2 P.S. There is one more patch which needs to be brought back to life [2] Any reasons why this patch hasn't been upstremed yet? Thank you. [1] [Xen-devel] [PATCH v2 00/13] "Non-shared" IOMMU support on ARM https://www.mail-archive.com/xen-devel@xxxxxxxxxxxxx/msg115901.html [2] [Xen-devel] [PATCH v8 02/28] xen: Add log2 functionality https://lists.xenproject.org/archives/html/xen-devel/2016-02/msg00031.html Oleksandr Tyshchenko (7): iommu/arm: ipmmu-vmsa: Add IPMMU-VMSA support iommu/arm: ipmmu-vmsa: Add Xen changes for main driver iommu/arm: ipmmu-vmsa: Add io-pgtables support iommu/arm: ipmmu-vmsa: Add Xen changes for io-pgtables iommu/arm: Build IPMMU-VMSA related stuff iommu/arm: ipmmu-vmsa: Deallocate page table asynchronously iommu/arm: ipmmu-vmsa: Enable VMSAv8-64 mode if IPMMU HW supports it xen/drivers/passthrough/arm/Makefile | 3 + xen/drivers/passthrough/arm/io-pgtable-arm.c | 1331 +++++++++++++ xen/drivers/passthrough/arm/io-pgtable.c | 91 + xen/drivers/passthrough/arm/io-pgtable.h | 220 +++ xen/drivers/passthrough/arm/ipmmu-vmsa.c | 2611 ++++++++++++++++++++++++++ 5 files changed, 4256 insertions(+) create mode 100644 xen/drivers/passthrough/arm/io-pgtable-arm.c create mode 100644 xen/drivers/passthrough/arm/io-pgtable.c create mode 100644 xen/drivers/passthrough/arm/io-pgtable.h create mode 100644 xen/drivers/passthrough/arm/ipmmu-vmsa.c -- 2.7.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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