Re: [PATCH v3 00/10] ARM virt: Add NVDIMM support

[Michael S. Tsirkin]

On Wed, Mar 11, 2020 at 05:20:04PM +0000, Shameer Kolothum wrote:
> This series adds NVDIMM support to arm/virt platform.


So I'm still confused about whether there's a bugfix here
that we need for 5.0. If yes pls post just that part
with acks included and for-5.0 in the subject.

> The series reuses some of the patches posted by Eric
> in his earlier attempt here[1].
> 
> This also include few fixes to qemu in general which were
> discovered while adding nvdimm support to arm/virt.
> 
> Patch #2 addresses the issue[2] that, during migration, the 
> source and destination might end up with an inconsistency
> in acpi table memory region sizes.
> 
> Patch #3 is to fix the qemu_ram_resize() callback issue[2].
> 
> Patch #4 is another fix to the nvdimm aml issue discussed
> here[3].
> 
> I have done a basic sanity testing of NVDIMM devices
> with Guest booting with ACPI. Further testing is always
> welcome.
> 
> Please let me know your feedback.
> 
> Thanks,
> Shameer
> 
> [1] https://patchwork.kernel.org/cover/10830777/
> [2] https://patchwork.kernel.org/patch/11339591/
> [3] https://patchwork.kernel.org/cover/11174959/
> 
> v2 --> v3
>  - Added patch #1 and # 2 to fix the inconsistency in acpi
>    table memory region sizes during migration. Thanks to
>    David H.
>  - The fix for qemu_ram_resize() callback was modified to
>    the one in patch #3. Again thanks to David H.
>  - Addressed comments from MST and Eric on tests added.
>  - Addressed comments from Igor/MST on Integer size in patch #4
>  - Added Eric's R-by to patch #7.
> 
> v1 --> v2
>  -Reworked patch #1 and now fix is inside qemu_ram_resize().
>  -Added patch #2 to fix the nvdim aml issue.
>  -Dropped support to DT cold plug.
>  -Updated test_acpi_virt_tcg_memhp() with pc-dimm and nvdimms(patch #7)
> 
> David Hildenbrand (1):
>   exec: Fix for qemu_ram_resize() callback
> 
> Kwangwoo Lee (2):
>   nvdimm: Use configurable ACPI IO base and size
>   hw/arm/virt: Add nvdimm hot-plug infrastructure
> 
> Shameer Kolothum (7):
>   acpi: Use macro for table-loader file name
>   fw_cfg: Migrate ACPI table mr sizes separately
>   hw/acpi/nvdimm: Fix for NVDIMM incorrect DSM output buffer length
>   hw/arm/virt: Add nvdimm hotplug support
>   tests: Update ACPI tables list for upcoming arm/virt test changes
>   tests/bios-tables-test: Update arm/virt memhp test
>   tests/acpi: add expected tables for bios-tables-test
> 
>  docs/specs/acpi_hw_reduced_hotplug.rst |   1 +
>  exec.c                                 |  14 +++-
>  hw/acpi/generic_event_device.c         |  15 ++++-
>  hw/acpi/nvdimm.c                       |  72 +++++++++++++++++----
>  hw/arm/Kconfig                         |   1 +
>  hw/arm/virt-acpi-build.c               |   8 ++-
>  hw/arm/virt.c                          |  35 ++++++++--
>  hw/core/machine.c                      |   1 +
>  hw/i386/acpi-build.c                   |   8 ++-
>  hw/i386/acpi-build.h                   |   3 +
>  hw/i386/pc_piix.c                      |   2 +
>  hw/i386/pc_q35.c                       |   2 +
>  hw/mem/Kconfig                         |   2 +-
>  hw/nvram/fw_cfg.c                      |  86 ++++++++++++++++++++++++-
>  include/hw/acpi/aml-build.h            |   1 +
>  include/hw/acpi/generic_event_device.h |   1 +
>  include/hw/arm/virt.h                  |   1 +
>  include/hw/mem/nvdimm.h                |   3 +
>  include/hw/nvram/fw_cfg.h              |   6 ++
>  tests/data/acpi/pc/SSDT.dimmpxm        | Bin 685 -> 734 bytes
>  tests/data/acpi/q35/SSDT.dimmpxm       | Bin 685 -> 734 bytes
>  tests/data/acpi/virt/DSDT.memhp        | Bin 6644 -> 6668 bytes
>  tests/data/acpi/virt/NFIT.memhp        | Bin 0 -> 224 bytes
>  tests/data/acpi/virt/SSDT.memhp        | Bin 0 -> 736 bytes
>  tests/qtest/bios-tables-test.c         |   9 ++-
>  25 files changed, 244 insertions(+), 27 deletions(-)
>  create mode 100644 tests/data/acpi/virt/NFIT.memhp
>  create mode 100644 tests/data/acpi/virt/SSDT.memhp
> 
> -- 
> 2.17.1
>