[PATCH 04/15] acpi/ghes: better handle source_id and notification

Mauro Carvalho Chehab
2024-09-25T04:04:48Z

GHES has two fields that are stored on HEST error source
blocks:

- notification type, which is a number defined at the ACPI spec
containing several arch-specific synchronous and assynchronous
types;
- source id, which is a HW/FW defined number, used to distinguish
between different implemented hardware report mechanisms.

Cleanup the logic to fill those, as they should be handled
independently.

This is a preparation for a future patch that will shift
those fields to the HEST init function call.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

---

Chenges from v10:

- Some changes got moved to the previous patch.

Changes from v8:
- Non-rename/cleanup changes merged altogether;
- source ID is now more generic, defined per guest target.
That should make easier to add support for 86.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
hw/acpi/ghes.c | 23 +++++++++--------------
1 file changed, 9 insertions(+), 14 deletions(-)

diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index 7b42ed59cd15..7460cd1a8d56 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -284,9 +284,13 @@ static void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker)
}

/* Build Generic Hardware Error Source version 2 (GHESv2) */
-static void build_ghes_v2(GArray *table_data, int source_id, BIOSLinker *linker)
+static void build_ghes_v2(GArray *table_data,
+ BIOSLinker *linker,
+ enum AcpiGhesNotifyType notify,
+ uint16_t source_id)
{
uint64_t address_offset;
+
/*
* Type:
* Generic Hardware Error Source version 2(GHESv2 - Type 10)
@@ -316,18 +320,8 @@ static void build_ghes_v2(GArray *table_data, int source_id, BIOSLinker *linker)
address_offset + GAS_ADDR_OFFSET, sizeof(uint64_t),
ACPI_GHES_ERRORS_FW_CFG_FILE, source_id * sizeof(uint64_t));

- switch (source_id) {
- case ACPI_HEST_SRC_ID_SEA:
- /*
- * Notification Structure
- * Now only enable ARMv8 SEA notification type
- */
- build_ghes_hw_error_notification(table_data, ACPI_GHES_NOTIFY_SEA);
- break;
- default:
- error_report("Not support this error source");
- abort();
- }
+ /* Notification Structure */
+ build_ghes_hw_error_notification(table_data, notify);

/* Error Status Block Length */
build_append_int_noprefix(table_data, ACPI_GHES_MAX_RAW_DATA_LENGTH, 4);
@@ -369,7 +363,8 @@ void acpi_build_hest(GArray *table_data, GArray *hardware_errors,

/* Error Source Count */
build_append_int_noprefix(table_data, ACPI_GHES_ERROR_SOURCE_COUNT, 4);
- build_ghes_v2(table_data, ACPI_HEST_SRC_ID_SEA, linker);
+ build_ghes_v2(table_data, linker,
+ ACPI_GHES_NOTIFY_SEA, ACPI_HEST_SRC_ID_SEA);

acpi_table_end(linker, &table);
}
--
2.46.1