This patch-set implements memory hot-remove for QEmu.
Rebased on Igor's asynchronize hotplug framework (qemu v2.1.2, the latest).
Approach: QEmu sets GPE status bit, then triggers SCI to notify guest os.
Guest os checks device status, and free memory resource if possible,
then generate OST.
NOTE: In this version, memory hot-remove is independent from _OST,
following Igor's comments. Will implement _OST for memory hot-remove
soon if this part is OK.
Change log v3 -> v4 (RESEND):
1. Add new patch 1 ~ 4, fix some small problems in coding.
2. In patch 9, make memory hot-remove independent from _OST.
3. In patch 9, add comment for is_removing flag to document.
4. In patch 10, use macro instead of number.
5. Remove original patch 8 and 12 to coincident with asynchronize
hotplug framework.
Hu Tao (4):
acpi, piix4: Add memory hot unplug support for piix4.
pc: Add memory hot unplug support for pc machine.
pc-dimm: Add pc_dimm_unrealize() for memory hot unplug support.
pc, acpi bios: Add memory hot unplug interface.
Tang Chen (6):
acpi, mem-hotplug: Use PC_DIMM_SLOT_PROP in acpi_memory_plug_cb().
acpi, mem-hotplug: Add acpi_memory_get_slot_status_descriptor() to get
MemStatus.
acpi, mem-hotplug: Add acpi_memory_hotplug_sci() to rise sci for
memory hotplug.
acpi, mem-hotplug: Add acpi_memory_unplug_cb() to implement memory
unplug.
acpi, ich9: Add memory hot unplug support for ich9.
acpi: Add hardware implementation for memory hot unplug.
docs/specs/acpi_mem_hotplug.txt | 8 +++--
hw/acpi/ich9.c | 12 +++++++
hw/acpi/memory_hotplug.c | 71 +++++++++++++++++++++++++++++++---------
hw/acpi/piix4.c | 6 +++-
hw/i386/pc.c | 31 ++++++++++++++++++
hw/i386/ssdt-mem.dsl | 5 +++
hw/i386/ssdt-misc.dsl | 13 +++++++-
hw/isa/lpc_ich9.c | 5 +--
hw/mem/pc-dimm.c | 10 ++++++
include/hw/acpi/ich9.h | 2 ++
include/hw/acpi/memory_hotplug.h | 3 ++
include/hw/acpi/pc-hotplug.h | 2 ++
12 files changed, 146 insertions(+), 22 deletions(-)
--
1.8.4.2
