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Re: [Qemu-devel] [PATCH v6 0/8] QEMU memory hot unplug support


From: Zhu Guihua
Subject: Re: [Qemu-devel] [PATCH v6 0/8] QEMU memory hot unplug support
Date: Thu, 9 Apr 2015 18:01:35 +0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0


On 04/09/2015 04:28 PM, Igor Mammedov wrote:
On Thu, 9 Apr 2015 09:16:21 +0800
Zhu Guihua <address@hidden> wrote:

On 04/08/2015 06:47 PM, Paulo Ricardo Paz Vital wrote:
On Wed, 2015-04-08 at 11:52 +0200, Michael S. Tsirkin wrote:
On Wed, Apr 08, 2015 at 05:49:42PM +0800, Zhu Guihua wrote:
Ping...
It's only been 4 days.  We are finalizing 2.3 so pls sit tight.
I agree with Michael, it's time to close 2.3.
But I have a question. Is the patch counter correct? I didn't found the
patch 1/8 in my mailbox neither in qemu-devel archive.
My partners have received patch 1/8, but it is not in qemu-devel archive
indeed. I don't
know what happened.
Series chokes git am which fails with error:
fatal: cannot convert from n to UTF-8

patch was sent with:
Content-Type: text/plain; charset="n"

See for similar mistake discussion:
http://git.661346.n2.nabble.com/Invalid-responses-to-8bit-encoding-and-In-Reply-To-questions-td7624934.html

Got it. Thanks for your explanation.

Regards,
Zhu


I will resend the series later.

Thanks,
Zhu

On 04/02/2015 05:50 PM, Zhu Guihua wrote:
This patchset adds support to hot unplug memory.

Memory hot unplug is complicated multi-stage process. Unplug request callback
sends remove request. After guest os processes ejection request, OSPM will
execute _EJ0 to signal qemu that a device eject will be to occur. Then qemu
will call unplug callback to eject the device.

v6:
   -improve documentation of memory hot unplug
   -add trace event for device deletion
   -put fix about "Memory device control fields" register in a separate patch

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 (5):
    docs: update documentation for memory hot unplug
    acpi: extend aml_field() to support UpdateRule
    acpi: fix "Memory device control fields" register
    acpi: add hardware implementation for memory hot unplug
    qmp-event: add event notification for memory hot unplug error

   docs/memory-hotplug.txt           | 23 ++++++++--
   docs/qmp/qmp-events.txt           | 17 +++++++
   docs/specs/acpi_mem_hotplug.txt   | 58 +++++++++++++++++++++--
   hw/acpi/aml-build.c               |  4 +-
   hw/acpi/ich9.c                    | 19 ++++++--
   hw/acpi/memory_hotplug.c          | 96 
++++++++++++++++++++++++++++++++++++---
   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                      |  4 ++
   18 files changed, 346 insertions(+), 35 deletions(-)

.





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