lkml.org 
[lkml]   [2012]   [Nov]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    SubjectRe: [PATCH -v3 0/7] x86: Use BRK to pre mapping page table to make xen happy
    From
    On Sat, Nov 3, 2012 at 2:37 PM, H. Peter Anvin <hpa@zytor.com> wrote:
    > I am travelling at the moment... I hope to be able to look at it Sunday.
    >>
    >>can you put for-x86-mm-test to tip for more testing?
    >>
    >>or you want to rebase the whole patchset?

    All,

    please check branch that is rebased on top of 3.7-rc4.
    git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git
    for-x86-mm

    Stefano, Konrad,
    please check them with xen parts, and give your acked-by or
    Reviewed-by accordingly.

    Thanks

    Yinghai


    From 1b66ccf15ff4bd0200567e8d70446a8763f96ee7 Mon Sep 17 00:00:00 2001
    From: Yinghai Lu <yinghai@kernel.org>
    Date: Mon, 5 Nov 2012 11:54:12 -0800
    Subject: [PATCH v6 00/42] x86, mm: map ram from top-down with BRK and memblock.

    rebase patchset together tip/x86/mm2 on top of linus v3.7-rc4

    so this one include patchset : x86, mm: init_memory_mapping cleanup
    in tip/x86/mm2
    ---
    Current kernel init memory mapping between [0, TOML) and [4G, TOMH)
    Some AMD systems have mem hole between 4G and TOMH, around 1T.
    According to HPA, we should only mapping ram range.
    1. Seperate calculate_table_space_size and find_early_page_table out with
    init_memory_mapping.
    2. For all ranges, will allocate page table one time
    3. init mapping for ram range one by one.
    ---

    pre mapping page table patcheset includes:
    1. use brk to mapping first PMD_SIZE range under end of ram.
    2. top down to initialize page table range by range.
    3. get rid of calculate_page_table, and find_early_page_table.
    4. remove early_ioremap in page table accessing.
    5. remove workaround in xen to mark page RO.

    v2: changes, update xen interface about pagetable_reserve, so not
    use pgt_buf_* in xen code directly.
    v3: use range top-down to initialize page table, so will not use
    calculating/find early table anymore.
    also reorder the patches sequence.
    v4: add mapping_mark_page_ro to fix xen, also move pgt_buf_* to init.c
    and merge alloc_low_page(), and for 32bit need to add alloc_low_pages
    to fix 32bit kmap setting.
    v5: remove mark_page_ro workaround and add another 5 cleanup patches.
    v6: rebase on v3.7-rc4 and add 4 cleanup patches.

    could be found at:
    git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git
    for-x86-mm

    1b66ccf: mm: Kill NO_BOOTMEM version free_all_bootmem_node()
    0332736: sparc, mm: Remove calling of free_all_bootmem_node()
    0f88d27: x86, mm: kill numa_64.h
    10c4c68: x86, mm: kill numa_free_all_bootmem()
    0187d6e: x86, mm: Let "memmap=" take more entries one time
    2c20fd0: x86, mm: Use clamp_t() in init_range_memory_mapping
    770db30: x86, mm: Move after_bootmem to mm_internel.h
    d9bd282: x86, mm: Unifying after_bootmem for 32bit and 64bit
    003d654: x86, mm: use limit_pfn for end pfn
    29f27b8: x86, mm: use pfn instead of pos in split_mem_range
    8edaab8: x86, mm: use PFN_DOWN in split_mem_range()
    e652c73: x86, mm: use round_up/down in split_mem_range()
    5fd1391: x86, mm: Add check before clear pte above max_low_pfn on 32bit
    f4fd136: x86, mm: Move function declaration into mm_internal.h
    ea421df: x86, mm: change low/hignmem_pfn_init to static on 32bit
    867525b: x86, mm: Move init_gbpages() out of setup.c
    97fb23a: x86, mm: Move back pgt_buf_* to mm/init.c
    ba55b2f: x86, mm: only call early_ioremap_page_table_range_init() once
    bb6d2d9: x86, mm: Add pointer about Xen mmu requirement for alloc_low_pages
    6bc7e9f: x86, mm: Add alloc_low_pages(num)
    d90df25: x86, mm, Xen: Remove mapping_pagetable_reserve()
    f6699d2: x86, mm: Move min_pfn_mapped back to mm/init.c
    675697b: x86, mm: Merge alloc_low_page between 64bit and 32bit
    a14a382: x86, mm: Remove parameter in alloc_low_page for 64bit
    a0d7a52: x86, mm: Remove early_memremap workaround for page table
    accessing on 64bit
    384a79d: x86, mm: setup page table in top-down
    16252f2: x86, mm: Break down init_all_memory_mapping
    255a0bf: x86, mm: Don't clear page table if range is ram
    4bc70c5: x86, mm: Use big page size for small memory range
    dc62aa8: x86, mm: Align start address to correct big page size
    18f374c: x86: Only direct map addresses that are marked as E820_RAM
    150387c: x86: Fixup code testing if a pfn is direct mapped
    45cb049: x86: if kernel .text .data .bss are not marked as E820_RAM,
    complain and fix
    8d0b8bd: x86, mm: Set memblock initial limit to 1M
    6c712cf: x86, mm: Separate out calculate_table_space_size()
    33b0520: x86, mm: Find early page table buffer together
    a95ff4b: x86, mm: Change find_early_table_space() paramters
    ea564f8: x86, mm: Revert back good_end setting for 64bit
    912c686: x86, mm: Move init_memory_mapping calling out of setup.c
    47cfa63: x86, mm: Move down find_early_table_space()
    060ed6c: x86, mm: Split out split_mem_range from init_memory_mapping
    2ad38b5: x86, mm: Add global page_size_mask and probe one time only

    arch/sparc/mm/init_64.c | 24 +-
    arch/x86/include/asm/init.h | 21 +--
    arch/x86/include/asm/numa.h | 2 -
    arch/x86/include/asm/numa_64.h | 6 -
    arch/x86/include/asm/page_types.h | 2 +
    arch/x86/include/asm/pgtable.h | 2 +
    arch/x86/include/asm/pgtable_types.h | 1 -
    arch/x86/include/asm/x86_init.h | 12 -
    arch/x86/kernel/acpi/boot.c | 1 -
    arch/x86/kernel/cpu/amd.c | 9 +-
    arch/x86/kernel/cpu/intel.c | 1 -
    arch/x86/kernel/e820.c | 16 ++-
    arch/x86/kernel/setup.c | 70 ++----
    arch/x86/kernel/x86_init.c | 4 -
    arch/x86/mm/init.c | 445 ++++++++++++++++++++++------------
    arch/x86/mm/init_32.c | 106 +++++---
    arch/x86/mm/init_64.c | 140 ++++-------
    arch/x86/mm/mm_internal.h | 19 ++
    arch/x86/mm/numa_64.c | 13 -
    arch/x86/platform/efi/efi.c | 7 +-
    arch/x86/xen/mmu.c | 28 ---
    include/linux/mm.h | 1 -
    mm/nobootmem.c | 14 -
    23 files changed, 480 insertions(+), 464 deletions(-)
    delete mode 100644 arch/x86/include/asm/numa_64.h
    create mode 100644 arch/x86/mm/mm_internal.h

    --
    1.7.7


    \
     
     \ /
      Last update: 2012-11-05 22:02    [W:6.745 / U:0.008 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site