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d7610855b0
Add support for decoding NVIDIA-specific CPER sections delivered via the APEI GHES vendor record notifier chain. NVIDIA hardware generates vendor-specific CPER sections containing error signatures and diagnostic register dumps. This implementation registers a notifier_block with the GHES vendor record notifier and decodes these sections, printing error details via dev_info(). The driver binds to ACPI device NVDA2012, present on NVIDIA server platforms. The NVIDIA CPER section contains a fixed header with error metadata (signature, error type, severity, socket) followed by variable-length register address-value pairs for hardware diagnostics. This work is based on libcper [1]. Example output: nvidia-ghes NVDA2012:00: NVIDIA CPER section, error_data_length: 544 nvidia-ghes NVDA2012:00: signature: CMET-INFO nvidia-ghes NVDA2012:00: error_type: 0 nvidia-ghes NVDA2012:00: error_instance: 0 nvidia-ghes NVDA2012:00: severity: 3 nvidia-ghes NVDA2012:00: socket: 0 nvidia-ghes NVDA2012:00: number_regs: 32 nvidia-ghes NVDA2012:00: instance_base: 0x0000000000000000 nvidia-ghes NVDA2012:00: register[0]: address=0x8000000100000000 value=0x0000000100000000 https://github.com/openbmc/libcper/commit/683e055061ce [1] Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Signed-off-by: Kai-Heng Feng <kaihengf@nvidia.com> [ rjw: Changelog edits ] Link: https://patch.msgid.link/20260330094203.38022-4-kaihengf@nvidia.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
16 lines
604 B
Makefile
16 lines
604 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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obj-$(CONFIG_ACPI_APEI) += apei.o
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obj-$(CONFIG_ACPI_APEI_GHES) += ghes.o
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# clang versions prior to 18 may blow out the stack with KASAN
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ifeq ($(CONFIG_COMPILE_TEST)_$(CONFIG_CC_IS_CLANG)_$(call clang-min-version, 180000),y_y_)
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KASAN_SANITIZE_ghes.o := n
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endif
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obj-$(CONFIG_ACPI_APEI_PCIEAER) += ghes_helpers.o
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obj-$(CONFIG_ACPI_APEI_EINJ) += einj.o
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einj-y := einj-core.o
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einj-$(CONFIG_ACPI_APEI_EINJ_CXL) += einj-cxl.o
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obj-$(CONFIG_ACPI_APEI_ERST_DEBUG) += erst-dbg.o
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obj-$(CONFIG_ACPI_APEI_GHES_NVIDIA) += ghes-nvidia.o
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apei-y := apei-base.o hest.o erst.o bert.o
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