[DO NOT MERGE] [OLD] firmware_uefi: add diagnostics service for uefi logs #1209
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maheeraeron
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| return Err(EntryParseError::Timestamp(entry.time_stamp)); | ||
| } | ||
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| // Validate the message length |
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I suggest leaving out comments that don't say anything more than what the code is obviously doing.
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| /// UEFI Advanced Logger Info Header, which is shared | ||
| /// with the Advanced Logger Package in UEFI. The entries | ||
| /// live right after. | ||
| #[repr(C, packed)] |
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Why is this packed? It looks like it has natural alignment for all fields. Marking it packed just makes more work for yourself since you can't take references to fields inside it.
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| } | ||
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| // Process any remaining accumulated message | ||
| if is_accumulating && !accumulated_message.is_empty() { |
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This chunk of code is duplicated. Find a way to avoid this duplication (e.g., define a closure and call that closure in the two places).
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…e of overflow instead, avoid allocation for message, remove explicit endianness, remove unnecessary comments, use kv pairs in trace statements, change to log_message for actual message, remove prefix
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This PR focuses on a new diagnostics service for firmware_uefi.
UEFI will write the GPA of the advanced logger buffer (which we formally call EFI Diagnostics here) to an Io port intercept called
SET_EFI_DIAGNOSTICS_GPA.UEFI will also write to a different Io port intercept called
PROCESS_EFI_DIAGNOSTICS, which signals us to process the EFI Diagnostics buffer.The diagnostics subsystem's role is to read into guest memory from the specified GPA, collect advanced logger entries and log them to our tracing facilities. This will get triggered by the following conditions:
PROCESS_EFI_DIAGNOSTICS)PROCESS_EFI_DIAGNOSTICS)