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authorRocky Phagura <rphagura@fb.com>2021-01-10 15:42:50 -0800
committerDavid Hendricks <david.hendricks@gmail.com>2021-04-30 01:19:30 +0000
commiteff0713dfcbc2a32a20946c3a69ccb85775de4a0 (patch)
tree85f57e48d6eb3b8eff4b9033f03c48787529a12a /src/mainboard
parent7da1c1732a45f8e426772b99946e6718b9b4df03 (diff)
src/acpi: Add APEI EINJ support
This adds full EINJ support with trigger action tables. The actual error injection functionality is HW specific. Therefore, HW specific code should call acpi_create_einj with an address where action table resides. The default params of the action table are filled out by the common code. Control is then returned back to the caller to modify or override default parameters. If no changes are needed, caller can simply add the acpi table. At runtime, FW is responsible for filling out the action table with the proper entries. The action table memory is shared between FW and OS. This memory should be marked as reserved in E820 table. Tested on Deltalake mainboard. Boot to OS, load the EINJ driver ( modprobe EINJ) and verify EINJ memory entries are in /proc/iomem. Further tested by injecting errors via the APEI file nodes. More information on error injection can be referenced in the latest ACPI spec. Change-Id: I29c6a861c564ec104f2c097f3e49b3e6d38b040e Signed-off-by: Rocky Phagura <rphagura@fb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49286 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Rocky Phagura
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