[PATCH v6 07/10] docs: acpi_hest_ghes: fix documentation for CPER size

Mauro Carvalho Chehab
2024-08-08T12:26:42Z

While the spec defines a CPER size of 4KiB for each record,
currently it is set to 1KiB. Fix the documentation and add
a pointer to the macro name there, as this may help to keep
it updated.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
docs/specs/acpi_hest_ghes.rst | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/docs/specs/acpi_hest_ghes.rst b/docs/specs/acpi_hest_ghes.rst
index 68f1fbe0a4af..c3e9f8d9a702 100644
--- a/docs/specs/acpi_hest_ghes.rst
+++ b/docs/specs/acpi_hest_ghes.rst
@@ -67,8 +67,10 @@ Design Details
(3) The address registers table contains N Error Block Address entries
and N Read Ack Register entries. The size for each entry is 8-byte.
The Error Status Data Block table contains N Error Status Data Block
- entries. The size for each entry is 4096(0x1000) bytes. The total size
- for the "etc/hardware_errors" fw_cfg blob is (N * 8 * 2 + N * 4096) bytes.
+ entries. The size for each entry is defined at the source code as
+ ACPI_GHES_MAX_RAW_DATA_LENGTH (currently 1024 bytes). The total size
+ for the "etc/hardware_errors" fw_cfg blob is
+ (N * 8 * 2 + N * ACPI_GHES_MAX_RAW_DATA_LENGTH) bytes.
N is the number of the kinds of hardware error sources.

(4) QEMU generates the ACPI linker/loader script for the firmware. The
--
2.45.2