[Qemu-devel] [PATCH RFC 0/6] q35: add acpi pci hotplug support

[Aleksandr Bezzubikov <zuban32s@gmail.com>]

The series adds hotplug support to legacy PCI buses for Q35 machines.
The ACPI hotplug code is emitted if at least one legacy pci-bridge is present.

This series is mostly based on past Marcel's series 
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg05681.html,
but rebased on current master with some minor changes according to current codebase.

ACPI code emission approach used in this series can be called "static", 
because it checkswhether a bridge exists only at initial DSDT generation moment. 
The main goal is to enable AML PCI hotplug-related code to be generated dynamically. 
In other words, the bridge plugged in - a new acpi definition block is
loaded (using LoadTable method). 
This is necessary for PCIE-PCI bridge hotplugging feature. 

Aleksandr Bezzubikov (6):
  hw/acpi: remove dead acpi code
  hw/acpi: simplify dsdt building code
  hw/acpi: fix pcihp io initialization
  hw/acpi: prepare pci hotplug IO for ich9
  hw/acpi: extend acpi pci hotplug support for pci express
  hw/ich9: enable acpi pci hotplug

 hw/acpi/ich9.c         |  31 +++++++++++++
 hw/i386/acpi-build.c   | 116 ++++++++++++++++++++++++-------------------------
 hw/isa/lpc_ich9.c      |  12 +++++
 include/hw/acpi/ich9.h |   4 ++
 include/hw/i386/pc.h   |   7 ++-
 5 files changed, 111 insertions(+), 59 deletions(-)

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2.7.4