Question: When migrating from old qemu to one with this hot remove feature, I found this feature would not work any more in new qemu.
The reason is that DSDT table will not re-generate in new qemu when migration.
So the hot remove will not work in the new qemu even though qemu has this feature. Is it possible to re-generate dsdt table when migration? Thanks, Zhu On 03/27/2015 05:20 PM, Zhu Guihua wrote:
Memory hot unplug are both asynchronous procedures. When the unplug operation happens, unplug request cb is called first. And when guest OS finished handling unplug, unplug cb will be called to do the real removal of device. v5: -reorganize the patchset -add documentation to understand patch easily -add MEMORY_SLOT_EJECT for initiating device eject -add support to send qmp event to notify mgmt about memory unplug error v4: -reorganize the patchset -drop the new API acpi_send_gpe_event() -update ssdt-mem v3: -commit message changes -reorganize the patchset, squash and separate some patches -update specs about acpi_mem_hotplug -first cleanup external state, then un-map and un-register memory device v2: -do a generic for acpi to send gpe event -unparent object by PC_MACHINE -update description in acpi_mem_hotplug.txt -combine the last two patches in the last version -cleanup external state in acpi_memory_unplug_cb Tang Chen (3): acpi, mem-hotplug: add acpi_memory_slot_status() to get MemStatus acpi, mem-hotplug: add unplug request cb for memory device acpi, mem-hotplug: add unplug cb for memory device Zhu Guihua (4): docs: update documentation for memory hot unplug acpi: extend aml_field() to support UpdateRule acpi: add hardware implementation for memory hot unplug qmp-event: add event notification for memory hot unplug error docs/memory-hotplug.txt | 24 ++++++++-- docs/qmp/qmp-events.txt | 17 +++++++ docs/specs/acpi_mem_hotplug.txt | 32 ++++++++++++-- hw/acpi/aml-build.c | 4 +- hw/acpi/ich9.c | 19 ++++++-- hw/acpi/memory_hotplug.c | 93 ++++++++++++++++++++++++++++++++++++--- hw/acpi/piix4.c | 17 +++++-- hw/core/qdev.c | 2 +- hw/i386/acpi-build.c | 25 ++++++++--- hw/i386/acpi-dsdt-mem-hotplug.dsl | 13 +++++- hw/i386/pc.c | 62 ++++++++++++++++++++++++-- include/hw/acpi/aml-build.h | 10 ++++- include/hw/acpi/memory_hotplug.h | 12 +++++ include/hw/acpi/pc-hotplug.h | 3 ++ include/hw/qdev-core.h | 1 + monitor.c | 1 + qapi/event.json | 14 ++++++ trace-events | 2 + 18 files changed, 315 insertions(+), 36 deletions(-)
