On Wed, 25 Sep 2019 11:28:42 -0400 "Michael S. Tsirkin" <m...@redhat.com> wrote:
> On Wed, Sep 18, 2019 at 02:06:22PM +0100, Shameer Kolothum wrote: > > This series is an attempt to provide device memory hotplug support > > on ARM virt platform. This is based on Eric's recent works here[1] > > and carries some of the pc-dimm related patches dropped from his > > series. > > > > The kernel support for arm64 memory hot add was added recently by > > Robin and hence the guest kernel should be => 5.0-rc1. > > > > NVDIM support is not included currently as we still have an unresolved > > issue while hot adding NVDIMM[2]. However NVDIMM cold plug patches > > can be included, but not done for now, for keeping it simple. > > > > This makes use of GED device to sent hotplug ACPI events to the > > Guest. GED code is based on Nemu. Thanks to the efforts of Samuel and > > Sebastien to add the hardware-reduced support to Nemu using GED > > device[3]. (Please shout if I got the author/signed-off wrong for > > those patches or missed any names). > > > > This is sanity tested on a HiSilicon ARM64 platform and appreciate > > any further testing. > > > > Note: > > Attempted adding dimm_pxm test case to bios-tables-test for arm/virt. > > But noticed the issue decribed here[5]. This is under investigation > > now. > > > > Thanks, > > Shameer > > > Which tree is this going through? Mine or ARM? I'd assume your tree??? (You are the wizard who knows how to handle bios-tables-test-allowed-diff.h on merge) > > > > [1] https://patchwork.kernel.org/cover/10837565/ > > [2] https://patchwork.kernel.org/cover/10783589/ > > [3] https://github.com/intel/nemu/blob/topic/virt-x86/hw/acpi/ged.c > > [4] > > http://lists.infradead.org/pipermail/linux-arm-kernel/2019-May/651763.html > > [5] https://www.mail-archive.com/qemu-devel@nongnu.org/msg632651.html > > > > v10 --> v11 > > -Changed patch #10 to update bios-tables-test-allowed-diff.h with a > > list of expected ACPI tables. > > -GED document changed to rst format (patch #9) > > -Addressed comments from Igor (patch #3 & #5) > > -Igor's R-by to #7, #8 & #11. > > > > v9 --> v10 > > -Fix for "make check" failure on x86_64(Patch #1). > > -Minor updates based on Eric's comments. > > -Dropped patch "hw/arm/virt: Add 4.2 machine type" as this is already > > in master now. > > -Added R-by tags by Eric. > > > > v8 --> v9 > > -Changes related to GED being a TYPE_SYS_BUS_DEVICE now. > > -Re-arranged patches 8 and 9. > > -Added GED ABI documentation(patch #10). > > -Added numamem and memhp tests to arm/virt(#11 and #12) > > -Dropped few R-by tags as code has changed a bit. > > -Please see Individual patch history for details. > > > > v7 --> v8 > > -Addressed comments from Igor.Please see individual patches. > > -Updated bios-tables-test-allowed-diff.h to avoid "make check" > > failure (patch #6) and dropped patch #10 > > -Added Igor's R-by to patches 4 & 5. > > -Dropped Erics's R-by from patch #9 for now. > > > > v6 --> v7 > > - Added 4.2 machine support and restricted GED creation for < 4.2 > > This is to address the migration test fail reported by Eric. > > - Included "tests: Update DSDT ACPI table.." patch(#10) from Eric > > to fix the "make check" bios-tables-test failure. > > > > v5 --> v6 > > > > -Addressed comments from Eric. > > -Added R-by from Eric and Igor. > > > > v4 --> v5 > > -Removed gsi/ged-irq routing in virt. > > -Added Migration support. > > -Dropped support for DT coldplug case based on the discussions > > here[4] > > -Added system_powerdown support through GED. > > > > v3 --> v4 > > Addressed comments from Igor and Eric, > > -Renamed "virt-acpi" to "acpi-ged". > > -Changed ged device parent to TYPE_DEVICE. > > -Introduced DT memory node property "hotpluggable" to resolve device > > memory being treated as early boot memory issue(patch #7). > > -Combined patches #3 and #9 from v3 into #3. > > > > v2 --> v3 > > > > Addressed comments from Igor and Eric, > > -Made virt acpi device platform independent and moved > > to hw/acpi/generic_event_device.c > > -Moved ged specific code into hw/acpi/generic_event_device.c > > -Introduced an opt-in feature "fdt" to resolve device-memory being > > treated as early boot memory. > > -Dropped patch #1 from v2. > > > > RFC --> v2 > > > > -Use GED device instead of GPIO for ACPI hotplug events. > > -Removed NVDIMM support for now. > > -Includes dropped patches from Eric's v9 series. > > > > Eric Auger (1): > > hw/arm/virt: Add memory hotplug framework > > > > Samuel Ortiz (2): > > hw/acpi: Do not create memory hotplug method when handler is not > > defined > > hw/acpi: Add ACPI Generic Event Device Support > > > > Shameer Kolothum (8): > > hw/acpi: Make ACPI IO address space configurable > > hw/arm/virt: Enable device memory cold/hot plug with ACPI boot > > hw/arm/virt-acpi-build: Add PC-DIMM in SRAT > > hw/arm: Factor out powerdown notifier from GPIO > > hw/arm: Use GED for system_powerdown event > > docs/specs: Add ACPI GED documentation > > tests: Update ACPI tables list for upcoming arm/virt tests > > tests: Add bios tests to arm/virt > > > > docs/specs/acpi_hw_reduced_hotplug.rst | 70 ++++++ > > docs/specs/index.rst | 1 + > > hw/acpi/Kconfig | 4 + > > hw/acpi/Makefile.objs | 1 + > > hw/acpi/generic_event_device.c | 311 +++++++++++++++++++++++++ > > hw/acpi/memory_hotplug.c | 43 ++-- > > hw/arm/Kconfig | 4 + > > hw/arm/virt-acpi-build.c | 35 ++- > > hw/arm/virt.c | 124 +++++++++- > > hw/i386/acpi-build.c | 7 +- > > hw/i386/pc.c | 3 + > > include/hw/acpi/acpi_dev_interface.h | 1 + > > include/hw/acpi/generic_event_device.h | 103 ++++++++ > > include/hw/acpi/memory_hotplug.h | 9 +- > > include/hw/arm/virt.h | 5 + > > include/hw/i386/pc.h | 3 + > > tests/bios-tables-test-allowed-diff.h | 16 ++ > > tests/bios-tables-test.c | 49 ++++ > > 18 files changed, 748 insertions(+), 41 deletions(-) > > create mode 100644 docs/specs/acpi_hw_reduced_hotplug.rst > > create mode 100644 hw/acpi/generic_event_device.c > > create mode 100644 include/hw/acpi/generic_event_device.h > > > > -- > > 2.17.1 > >
