[PATCH V4 0/6] PCI, x86: update MMCFG information when hot-plugging PCI host bridges

[Jiang Liu <liuj97@gmail.com>]

This patchset enhance pci_root driver to update MMCFG information when
hot-plugging PCI root bridges. It applies to Yinghai's tree at
git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git for-pci-root-bus-hotplug

The second patch is based on Taku Izumi work with some enhancements to
correctly handle PCI host bridges without _CBA method.

-v2: split into smaller patches and skip updating MMCFG information when
     MMCFG is disabled
-v3: add mmconf_added to simply free path, also make pci_mmconfig_insert()
     to process extra exist case --- By Yinghai
-v4: tune arch_acpi_pci_root_add() to handle a corner case raised by Kenji

Jiang Liu (6):
  PCI, x86: split out pci_mmcfg_check_reserved() for code reuse
  PCI, x86: split out pci_mmconfig_alloc() for code reuse
  PCI, x86: use RCU list to protect mmconfig list
  PCI, x86: introduce pci_mmcfg_arch_map()/pci_mmcfg_arch_unmap()
  PCI, x86: introduce pci_mmconfig_insert()/delete() for PCI root
    bridge hotplug
  PCI, ACPI, x86: update MMCFG information when hot-plugging PCI host
    bridges

 arch/x86/include/asm/pci_x86.h |    5 +
 arch/x86/pci/acpi.c            |   58 +++++++++++++
 arch/x86/pci/mmconfig-shared.c |  185 +++++++++++++++++++++++++++++++---------
 arch/x86/pci/mmconfig_32.c     |   30 ++++++-
 arch/x86/pci/mmconfig_64.c     |   37 +++++++-
 drivers/acpi/pci_root.c        |   16 ++++
 include/acpi/acnames.h         |    1 +
 include/acpi/acpi_bus.h        |    1 +
 include/linux/pci-acpi.h       |    3 +
 9 files changed, 287 insertions(+), 49 deletions(-)

-- 
1.7.5.4