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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [RFC PATCH v3 00/24] ARM: Add Xen NUMA support
From: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxx> With this RFC patch series, NUMA support is added for ARM platform. Both DT and ACPI based NUMA support is added. Only Xen is made aware of NUMA platform. NUMA awareness to DOM0 is not added. As part of this series, the code under x86 architecture is reused by moving into common files. New files xen/common/numa.c and xen/drivers/acpi/srat.c files are added. For ARM specific new folder is added xen/arch/arm/numa and new files numa.c, dt_numa.c and acpi_numa are introduced under this folder. DT NUMA: The following major changes are performed - Dropped numa-node-id information from Dom0 DT. So that Dom0 devices make allocation from node 0 for devmalloc requests. - Memory DT is not deleted by EFI. It is exposed to Xen to extract numa information. - On NUMA failure, Fallback to Non-NUMA booting.ACPI_SRAT_TYPE_MEMORY_AFFINITY Assuming all the memory and CPU's are under node 0. - CONFIG_NUMA is introduced. ACPI NUMA: - MADT is parsed before parsing SRAT table to extract CPU_ID to MPIDR mapping info. In Linux, while parsing SRAT table, MADT table is opened and extract MPIDR. This approach avoids opening ACPI tables recursively. - SRAT table is parsed for ACPI_SRAT_TYPE_GICC_AFFINITY to extract proximity info and MPIDR from CPU_ID to MPIDR mapping table. - Parsing of SRAT table for ACPI_SRAT_TYPE_MEMORY_AFFINITY to extract memory proximity is reused from x86 arch. - Re-use SLIT parsing of x86 for node distance information. - CONFIG_ACPI_NUMA is introduced This patch is tested on Thunderx platform. No changes are made to x86 implementation only code is sanitized and refactored. Hence only compilation tested for x86. This series is posted as RFC for the reason that it is not tested on x86. Request some help from community in testing this series on x86. Code is shared at https://github.com/vijaykilari/xen-numa/commits/rfc_v3 v3: Major changes - Rebased to latest staging branch - Dropped patches 4 & 5 of v2. - Reused most of the x86 code like numa emulation, acpi memory node parsing by moving to common code. - Fixed cpu node parsing with DT. - Made NR_NODES as configurable - Dropped hardcoding of memnodemap[] array size - Segregated new dt functions to single patch 11 - Introduced new patch 10 for NUMA initialization. v2: Major changes - Rebased to lastest staging branch - Reworked on x86 NUMA code and cleanup to possible extent. Patches 1 to 8 are created for this - Reworked on DT and ACPI NUMA extracting information - Reused DT code for memory node processing to extract NUMA info. - Fixed issues with DT processing - Added arch specific processing of SRAT - Reworked on MADT and SRAT processing - Reworked on node distance - All ARM changes are moved under folder arch/arm/numa. - NUMA ACPI common changes are kept in drivers/acpi/srat.c Vijaya Kumar K (24): NUMA: Make number of NUMA nodes configurable x86: NUMA: Clean up: Fix coding styles and drop unused code x86: NUMA: Fix datatypes and attributes x86: NUMA: Rename and sanitize memnode shift code x86: NUMA: Add accessors for nodes[] and node_memblk_range[] structs x86: NUMA: Rename some generic functions ARM: NUMA: Add existing ARM numa code under CONFIG_NUMA NUMA: x86: Move numa code and make it generic NUMA: x86: Move common code from srat.c NUMA: Allow numa initialization with DT ARM: fdt: Export and introduce new fdt functions ARM: NUMA: DT: Parse CPU NUMA information ARM: NUMA: DT: Parse memory NUMA information ARM: NUMA: DT: Parse NUMA distance information ARM: NUMA: DT: Add CPU NUMA support ARM: NUMA: Add memory NUMA support ARM: NUMA: DT: Do not expose numa info to DOM0 ACPI: Refactor acpi SRAT and SLIT table handling code ARM: NUMA: Extract MPIDR from MADT table ACPI: Move arch specific SRAT parsing ARM: NUMA: ACPI: Extract proximity from SRAT table ARM: NUMA: Initialize ACPI NUMA NUMA: Move CONFIG_NUMA to common Kconfig NUMA: Enable ACPI_NUMA config xen/arch/Kconfig | 7 + xen/arch/arm/Makefile | 1 + xen/arch/arm/acpi/boot.c | 2 + xen/arch/arm/bootfdt.c | 45 ++- xen/arch/arm/domain_build.c | 9 + xen/arch/arm/efi/efi-boot.h | 25 -- xen/arch/arm/numa/Makefile | 3 + xen/arch/arm/numa/acpi_numa.c | 246 +++++++++++++ xen/arch/arm/numa/dt_numa.c | 240 +++++++++++++ xen/arch/arm/numa/numa.c | 188 ++++++++++ xen/arch/arm/setup.c | 6 + xen/arch/arm/smpboot.c | 25 +- xen/arch/x86/dom0_build.c | 1 + xen/arch/x86/mm.c | 2 - xen/arch/x86/numa.c | 463 +------------------------ xen/arch/x86/physdev.c | 1 + xen/arch/x86/setup.c | 1 + xen/arch/x86/smpboot.c | 4 +- xen/arch/x86/srat.c | 405 ++++------------------ xen/arch/x86/x86_64/mm.c | 3 +- xen/common/Kconfig | 4 + xen/common/Makefile | 1 + xen/common/numa.c | 670 ++++++++++++++++++++++++++++++++++++ xen/drivers/acpi/Kconfig | 5 +- xen/drivers/acpi/Makefile | 1 + xen/drivers/acpi/numa.c | 58 +--- xen/drivers/acpi/srat.c | 298 ++++++++++++++++ xen/drivers/passthrough/vtd/iommu.c | 1 + xen/include/acpi/actbl1.h | 17 +- xen/include/acpi/srat.h | 24 ++ xen/include/asm-arm/numa.h | 33 +- xen/include/asm-arm/setup.h | 5 + xen/include/asm-x86/acpi.h | 4 - xen/include/asm-x86/config.h | 1 - xen/include/asm-x86/numa.h | 73 +--- xen/include/asm-x86/setup.h | 1 - xen/include/xen/acpi.h | 6 + xen/include/xen/config.h | 1 + xen/include/xen/nodemask.h | 2 + xen/include/xen/numa.h | 79 ++++- 40 files changed, 2002 insertions(+), 959 deletions(-) create mode 100644 xen/arch/arm/numa/Makefile create mode 100644 xen/arch/arm/numa/acpi_numa.c create mode 100644 xen/arch/arm/numa/dt_numa.c create mode 100644 xen/arch/arm/numa/numa.c create mode 100644 xen/common/numa.c create mode 100644 xen/drivers/acpi/srat.c create mode 100644 xen/include/acpi/srat.h -- 2.7.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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