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linux/drivers/acpi/apei
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Tony Luck d2932a59c2 ACPI: APEI: EINJ: Fix EINJV2 initialization and injection 
ACPI 6.6 specification for EINJV2 appends an extra structure to
the end of the existing struct set_error_type_with_address.

Several issues showed up in testing.

 1) Initialization was broken by an earlier fix [1] since is_v2 is only
    set while performing an injection, not during initialization.

 2) A buggy BIOS provided invalid "revision" and "length" for the
    extension structure. Add several sanity checks.

 3) When injecting legacy error types on an EINJV2 capable system,
    don't copy the component arrays.

Fixes: 6c70585149 ("ACPI: APEI: EINJ: Check if user asked for EINJV2 injection") # [1]
Fixes: b47610296d ("ACPI: APEI: EINJ: Enable EINJv2 error injections")
Signed-off-by: Tony Luck <tony.luck@intel.com>
[ rjw: Changelog edits ]
Cc: 6.17+ <stable@vger.kernel.org> # 6.17+
Link: https://patch.msgid.link/20251119012712.178715-1-tony.luck@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
History 2025-11-19 13:36:29 +01:00
..
apei-base.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
apei-internal.h ACPI: APEI: EINJ: Enable the discovery of EINJv2 capabilities 2025-06-18 20:49:31 +02:00
bert.c ACPI: APEI: mark bert_disable as __initdata 2023-06-12 19:23:25 +02:00
einj-core.c ACPI: APEI: EINJ: Fix EINJV2 initialization and injection 2025-11-19 13:36:29 +01:00
einj-cxl.c ACPI: APEI: EINJ: Enable the discovery of EINJv2 capabilities 2025-06-18 20:49:31 +02:00
erst-dbg.c ACPI: APEI: Remove redundant assignments in erst_dbg_{ioctl|write}() 2025-09-15 21:21:57 +02:00
erst.c ACPI: APEI: Use ERST timeout for slow devices 2023-10-24 20:50:17 +02:00
ghes.c ACPI: APEI: Remove redundant rcu_read_lock/unlock() under spinlock 2025-09-28 12:31:54 +02:00
hest.c ACPI: APEI: Skip initialization of GHES_ASSIST structures for Machine Check Architecture 2024-02-29 18:34:40 +01:00
Kconfig firmware: SDEI: Allow sdei initialization without ACPI_APEI_GHES 2025-05-08 13:35:22 +01:00
Makefile EINJ: Add CXL error type support 2024-03-12 23:08:29 -07:00