Re: [PATCH v4 00/14] Change ghes to use HEST-based offsets and add support for error inject

Igor Mammedov
2025-02-27T09:55:00Z

On Fri, 21 Feb 2025 15:35:09 +0100
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> wrote:

> Now that the ghes preparation patches were merged, let's add support
> for error injection.
>
> On this series, the first 6 patches chang to the math used to calculate offsets at HEST
> table and hardware_error firmware file, together with its migration code. Migration tested
> with both latest QEMU released kernel and upstream, on both directions.
>
> The next patches add a new QAPI to allow injecting GHESv2 errors, and a script using such QAPI
> to inject ARM Processor Error records.
>
> ---
> v4:
> - added an extra comment for AcpiGhesState structure;
> - patches reordered;
> - no functional changes, just code shift between the patches in this series.
>
> v3:
> - addressed more nits;
> - hest_add_le now points to the beginning of HEST table;
> - removed HEST from tests/data/acpi;
> - added an extra patch to not use fw_cfg with virt-10.0 for hw_error_le
>
> v2:
> - address some nits;
> - improved ags cleanup patch and removed ags.present field;
> - added some missing le*_to_cpu() calls;
> - update date at copyright for new files to 2024-2025;
> - qmp command changed to: inject-ghes-v2-error ans since updated to 10.0;
> - added HEST and DSDT tables after the changes to make check target happy.
> (two patches: first one whitelisting such tables; second one removing from
> whitelist and updating/adding such tables to tests/data/acpi)
>
>
>
> Mauro Carvalho Chehab (14):
> acpi/ghes: prepare to change the way HEST offsets are calculated
> acpi/ghes: add a firmware file with HEST address
> acpi/ghes: Use HEST table offsets when preparing GHES records
> acpi/ghes: don't hard-code the number of sources for HEST table
> acpi/ghes: add a notifier to notify when error data is ready
> acpi/ghes: create an ancillary acpi_ghes_get_state() function
> acpi/generic_event_device: Update GHES migration to cover hest addr
> acpi/generic_event_device: add logic to detect if HEST addr is
> available
> acpi/generic_event_device: add an APEI error device
> tests/acpi: virt: allow acpi table changes for a new table: HEST
> arm/virt: Wire up a GED error device for ACPI / GHES
> tests/acpi: virt: add a HEST table to aarch64 virt and update DSDT
> qapi/acpi-hest: add an interface to do generic CPER error injection
> scripts/ghes_inject: add a script to generate GHES error inject
>
> MAINTAINERS | 10 +
> hw/acpi/Kconfig | 5 +
> hw/acpi/aml-build.c | 10 +
> hw/acpi/generic_event_device.c | 43 ++
> hw/acpi/ghes-stub.c | 7 +-
> hw/acpi/ghes.c | 231 ++++--
> hw/acpi/ghes_cper.c | 38 +
> hw/acpi/ghes_cper_stub.c | 19 +
> hw/acpi/meson.build | 2 +
> hw/arm/virt-acpi-build.c | 37 +-
> hw/arm/virt.c | 19 +-
> hw/core/machine.c | 2 +
> include/hw/acpi/acpi_dev_interface.h | 1 +
> include/hw/acpi/aml-build.h | 2 +
> include/hw/acpi/generic_event_device.h | 1 +
> include/hw/acpi/ghes.h | 54 +-
> include/hw/arm/virt.h | 2 +
> qapi/acpi-hest.json | 35 +
> qapi/meson.build | 1 +
> qapi/qapi-schema.json | 1 +
> scripts/arm_processor_error.py | 476 ++++++++++++
> scripts/ghes_inject.py | 51 ++
> scripts/qmp_helper.py | 702 ++++++++++++++++++
> target/arm/kvm.c | 7 +-
> tests/data/acpi/aarch64/virt/DSDT | Bin 5196 -> 5240 bytes
> .../data/acpi/aarch64/virt/DSDT.acpihmatvirt | Bin 5282 -> 5326 bytes
> tests/data/acpi/aarch64/virt/DSDT.memhp | Bin 6557 -> 6601 bytes
> tests/data/acpi/aarch64/virt/DSDT.pxb | Bin 7679 -> 7723 bytes
> tests/data/acpi/aarch64/virt/DSDT.topology | Bin 5398 -> 5442 bytes
> 29 files changed, 1677 insertions(+), 79 deletions(-)
> create mode 100644 hw/acpi/ghes_cper.c
> create mode 100644 hw/acpi/ghes_cper_stub.c
> create mode 100644 qapi/acpi-hest.json
> create mode 100644 scripts/arm_processor_error.py
> create mode 100755 scripts/ghes_inject.py
> create mode 100755 scripts/qmp_helper.py
>

once you enable, ras in tests as 1st patches and fixup minor issues
please try to do patch by patch compile/bios-tables-test testing, to avoid
unnecessary respin in case at table change crept in somewhere unnoticed.