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Sat, 07 Dec 2024 09:56:43 +0100
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To: "Michael S . Tsirkin" <mst@redhat.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Shiju Jose <shiju.jose@huawei.com>,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Dongjiu Geng <gengdongjiu1@gmail.com>,
linux-kernel@vger.kernel.org,
qemu-arm@nongnu.org,
qemu-devel@nongnu.org,
Igor Mammedov <imammedo@redhat.com>
Subject: [PATCH v6 16/16] docs: acpi_hest_ghes: fix documentation for CPER
size
Date: Sat, 7 Dec 2024 09:54:22 +0100
Message-ID:
<c9a291a9b3fa22000ae100d980a0ada5d6ba9a24.1733561462.git.mchehab+huawei@kernel.org>
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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>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
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) by=
tes.
+ 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.
=20
(4) QEMU generates the ACPI linker/loader script for the firmware. The
--=20
2.47.1