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    SubjectRe: [PATCH -v3 0/7] x86: Use BRK to pre mapping page table to make xen happy
    On Wed, Oct 10, 2012 at 11:13:45PM -0700, Yinghai Lu wrote:
    > On Wed, Oct 10, 2012 at 9:40 AM, Stefano Stabellini
    > <stefano.stabellini@eu.citrix.com> wrote:
    > >
    > > So you are missing the Xen patches entirely in this iteration of the
    > > series?
    >
    > please check updated for-x86-mm branch.
    >
    > [PATCH -v4 00/15] x86: Use BRK to pre mapping page table to make xen happy
    >
    > on top of current linus/master and tip/x86/mm2, but please zap last
    > patch in that branch.

    fyi, the way to do that is to revert it the offending patch.

    So which branch should I try out? Do you have one with all of the
    required patches so I can just do a 3.7-rc3 'git pull' and try it out?

    >
    > 1. use brk to mapping first PMD_SIZE range.
    > 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.
    >
    > 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()
    >
    > could be found at:
    > git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git
    > for-x86-mm
    >
    > Yinghai Lu (15):
    > x86, mm: Align start address to correct big page size
    > x86, mm: Use big page size for small memory range
    > x86, mm: Don't clear page table if next range is ram
    > x86, mm: only keep initial mapping for ram
    > x86, mm: Break down init_all_memory_mapping
    > x86, xen: Add xen_mapping_mark_page_ro
    > x86, mm: setup page table in top-down
    > x86, mm: Remove early_memremap workaround for page table accessing on 64bit
    > x86, mm: Remove parameter in alloc_low_page for 64bit
    > x86, mm: Merge alloc_low_page between 64bit and 32bit
    > x86, mm: Move min_pfn_mapped back to mm/init.c
    > x86, mm, xen: Remove mapping_pagatable_reserve
    > x86, mm: Add alloc_low_pages(num)
    > x86, mm: only call early_ioremap_page_range_init() one time on 32bit
    > x86, mm: Move back pgt_buf_* to mm/init.c
    >
    > arch/x86/include/asm/init.h | 4 -
    > arch/x86/include/asm/pgtable.h | 1 +
    > arch/x86/include/asm/pgtable_types.h | 1 -
    > arch/x86/include/asm/x86_init.h | 2 +-
    > arch/x86/kernel/setup.c | 2 +
    > arch/x86/kernel/x86_init.c | 3 +-
    > arch/x86/mm/init.c | 321 +++++++++++++++-------------------
    > arch/x86/mm/init_32.c | 76 ++++++--
    > arch/x86/mm/init_64.c | 119 ++++---------
    > arch/x86/mm/mm_internal.h | 11 ++
    > arch/x86/xen/mmu.c | 29 +---
    > 11 files changed, 249 insertions(+), 320 deletions(-)
    > create mode 100644 arch/x86/mm/mm_internal.h
    > --
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