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-rw-r--r--src/include/acpi/acpi.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h
index 7a6e9112ab..01d10c2b20 100644
--- a/src/include/acpi/acpi.h
+++ b/src/include/acpi/acpi.h
@@ -929,7 +929,15 @@ typedef struct acpi_hest_generic_data_v300 {
#define ACPI_GENERROR_VALID_FRUID_TEXT BIT(1)
#define ACPI_GENERROR_VALID_TIMESTAMP BIT(2)
-/* Generic Error Status Block */
+/*
+ * Generic Error Status Block
+ *
+ * If there is a raw data section at the end of the generic error status block after the
+ * zero or more generic error data entries, raw_data_length indicates the length of the raw
+ * section and raw_data_offset is the offset of the beginning of the raw data section from
+ * the start of the acpi_generic_error_status block it is contained in. So if raw_data_length
+ * is non-zero, raw_data_offset must be at least sizeof(acpi_generic_error_status_t).
+ */
typedef struct acpi_generic_error_status {
u32 block_status;
u32 raw_data_offset; /* must follow any generic entries */