On Wed, 5 Nov 2014 13:49:45 +0800 Tang Chen <tangc...@cn.fujitsu.com> wrote:
> This patch-set implements memory hot-remove for QEmu. > > Rebased on Igor's asynchronize hotplug framework (qemu v2.1.2, the latest). As I've wrote before, there were hot-unplug patches merged last month, see for reference http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg05195.html and this series could benefit from them. So please look take in account not addressed yet comments on V3 and rebase on current master instead of stable 2.1.2. > > 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(-) >