Re: [Qemu-devel] [PATCH for-2.9 00/10] pc: acpi: memory hotplug cleanup/consolidation

["Michael S. Tsirkin" <mst@redhat.com>]

On Mon, Jan 09, 2017 at 03:22:01PM +0100, Igor Mammedov wrote:
> On Tue,  6 Dec 2016 00:32:19 +0100
> Igor Mammedov <imammedo@redhat.com> wrote:
> 
> > Series cleanups and consolidates scattered memory hotplug
> > code so it could be easily reused by ARM target later.
> > 
> > As result:
> >  * added memory hotplug variant to bios tables test
> >  * all ACPI related parts of memory hotplug are consolidated
> >    within memory_hotplug.c
> >  * DSDT table size is reduced ~900 bytes when memory hotplug
> >    is not enabled (by not generating not used AML)
> >  * DSDT table size is reduced on 12 bytes per slot
> >    (i.e. up to ~3000 bytes savings for 256 DIMMs) with memory hotplug
> >    enabled due AML reorganization that makes calls to common functions
> >    smaller as devices and common functions are now within the same scope.
> > 
> > Tested with following guests:
> >   - RHEL7.3, WS2008DC, WS2008R2DC, WS2012R2DC, WS2016TP5 - no regressions found
> >   - XP3 and WS2003 - boots fine even if memhotplug is enabled (but otherwise
> >     it never worked as memhp is not supported there)
> 
> Michael,
> 
> Marcel's already reviewed this series a while ago could you
> pull it in your tree if there aren't any questions?

Yes I plan to merge it., just trying to figure out
why my previous pull did not get there.

> 
> > Git tree for testing:
> >   https://github.com/imammedo/qemu.git memhp_consolidate_v1
> > viewing:
> >   https://github.com/imammedo/qemu/commits/memhp_consolidate_v1
> > 
> > Note to maintaner:
> >   * blobs patch 2/10 should be merged to patch 1/10
> >   * ACPI tables should be regenarated and applied after series is merged
> >     as DSDT will cange for all tests cases due removal of inactive
> >     memory hotplug code.
> > 
> > CC: "Michael S. Tsirkin" <mst@redhat.com>
> > CC: Eduardo Habkost <ehabkost@redhat.com>
> > CC: Marcel Apfelbaum <marcel@redhat.com>
> > 
> > 
> > Igor Mammedov (10):
> >   tests: pc: add memory hotplug acpi tables tests
> >   tests: pc: acpi: add SRAT and DSDT blobs for memory hotplug variant
> >   memhp: move build_memory_hotplug_aml() into memory_hotplug.c
> >   memhp: move build_memory_devices() into memory_hotplug.c
> >   memhp: consolidate scattered MHPD device declaration
> >   memhp: merge build_memory_devices() into build_memory_hotplug_aml()
> >   memhp: move GPE handler_E03 into build_memory_hotplug_aml()
> >   memhp: move memory hotplug only defines to memory_hotplug.c
> >   memhp: don't generate memory hotplug AML if it's not enabled/supported
> >   memhp: move DIMM devices into dedicated scope with related common
> >     methods
> > 
> >  include/hw/acpi/memory_hotplug.h    |  12 +-
> >  include/hw/acpi/pc-hotplug.h        |  23 --
> >  hw/acpi/Makefile.objs               |   2 +-
> >  hw/acpi/ich9.c                      |   3 +-
> >  hw/acpi/memory_hotplug.c            | 420 +++++++++++++++++++++++++++++++++++-
> >  hw/acpi/memory_hotplug_acpi_table.c | 262 ----------------------
> >  hw/acpi/piix4.c                     |   3 +-
> >  hw/i386/acpi-build.c                | 197 +++--------------
> >  tests/acpi-test-data/pc/DSDT.memhp  | Bin 0 -> 6613 bytes
> >  tests/acpi-test-data/pc/SRAT.memhp  | Bin 0 -> 224 bytes
> >  tests/acpi-test-data/q35/DSDT.memhp | Bin 0 -> 9375 bytes
> >  tests/acpi-test-data/q35/SRAT.memhp | Bin 0 -> 224 bytes
> >  tests/bios-tables-test.c            |  24 +++
> >  13 files changed, 479 insertions(+), 467 deletions(-)
> >  delete mode 100644 hw/acpi/memory_hotplug_acpi_table.c
> >  create mode 100644 tests/acpi-test-data/pc/DSDT.memhp
> >  create mode 100644 tests/acpi-test-data/pc/SRAT.memhp
> >  create mode 100644 tests/acpi-test-data/q35/DSDT.memhp
> >  create mode 100644 tests/acpi-test-data/q35/SRAT.memhp
> >