diff options
| author | Tyler Baicar <tbaicar@codeaurora.org> | 2017-06-21 21:17:04 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-06-22 17:43:47 +0300 |
| commit | 42aa560446622da6c33dce54fc8f4cd81516e906 (patch) | |
| tree | ae53e85283f84c42782142b8baab33df7a46583b /include/acpi | |
| parent | dd19802f2a224486c7f9a43bccd92e36c25afed9 (diff) | |
| download | linux-42aa560446622da6c33dce54fc8f4cd81516e906.tar.xz | |
acpi: apei: read ack upon ghes record consumption
A RAS (Reliability, Availability, Serviceability) controller
may be a separate processor running in parallel with OS
execution, and may generate error records for consumption by
the OS. If the RAS controller produces multiple error records,
then they may be overwritten before the OS has consumed them.
The Generic Hardware Error Source (GHES) v2 structure
introduces the capability for the OS to acknowledge the
consumption of the error record generated by the RAS
controller. A RAS controller supporting GHESv2 shall wait for
the acknowledgment before writing a new error record, thus
eliminating the race condition.
Add support for parsing of GHESv2 sub-tables as well.
Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org>
Reviewed-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/ghes.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h index 720446cb243e..68f088a92398 100644 --- a/include/acpi/ghes.h +++ b/include/acpi/ghes.h @@ -13,7 +13,10 @@ #define GHES_EXITING 0x0002 struct ghes { - struct acpi_hest_generic *generic; + union { + struct acpi_hest_generic *generic; + struct acpi_hest_generic_v2 *generic_v2; + }; struct acpi_hest_generic_status *estatus; u64 buffer_paddr; unsigned long flags; |