diff options
| author | Simon Glass <[email protected]> | 2025-03-15 14:26:05 +0000 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2025-04-03 11:43:22 -0600 |
| commit | 59001e758ae85f3226f7fab97027d6bff7baa00b (patch) | |
| tree | f9544ce1e1045c7d3268c7b0ee4122c1cd510d63 /doc/usage/cmd | |
| parent | 9e98664cdbab7419d527259daee2c09e1bd2898d (diff) | |
acpi: Support checking checksums
When the ACPI tables come from an earlier bootloader it is helpful to
see whether the checksums are correct or not. Add a -c flag to the
'acpi list' command to support that.
Signed-off-by: Simon Glass <[email protected]>
Diffstat (limited to 'doc/usage/cmd')
| -rw-r--r-- | doc/usage/cmd/acpi.rst | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/doc/usage/cmd/acpi.rst b/doc/usage/cmd/acpi.rst index 9f30972fe53..e652968d584 100644 --- a/doc/usage/cmd/acpi.rst +++ b/doc/usage/cmd/acpi.rst @@ -11,7 +11,7 @@ Synopsis :: - acpi list + acpi list [-c] acpi items [-d] acpi dump <name> acpi set <address> @@ -38,6 +38,9 @@ List the ACPI tables that have been generated. Each table has a 4-character table name (e.g. SSDT, FACS) and has a format defined by the `ACPI specification`_. +The `-c` flag tells U-Boot to verify the checksums and print 'OK' or 'BAD' next +to each table. + U-Boot does not currently support decoding the tables. Unlike devicetree, ACPI tables have no regular schema and also some include bytecode, so decoding the tables requires a lot of code. @@ -259,5 +262,20 @@ pointer:: WAET bff76a3b 28 v01 BOCHS BXPC 1 BXPC 1 SSDT bff95040 c5 v02 COREv4 COREBOOT 2a CORE 20221020 +This shows checking that the checksums are correct for each table:: + + => acpi list -c + Name Base Size Detail + ---- ---------------- ----- ---------------------------- + RSDP bec9a000 24 v00 BOCHS OK OK + RSDT bec9bd4a 38 v01 BOCHS BXPC 1 BXPC 1 OK + FACP bec9bb46 74 v01 BOCHS BXPC 1 BXPC 1 OK + DSDT bec9a080 1ac6 v01 BOCHS BXPC 1 BXPC 1 OK + FACS bec9a040 40 + APIC bec9bbba 78 v03 BOCHS BXPC 1 BXPC 1 OK + HPET bec9bc32 38 v01 BOCHS BXPC 1 BXPC 1 OK + SRAT bec9bc6a b8 v01 BOCHS BXPC 1 BXPC 1 OK + WAET bec9bd22 28 v01 BOCHS BXPC 1 BXPC 1 OK + .. _`ACPI specification`: https://uefi.org/sites/default/files/resources/ACPI_6_3_final_Jan30.pdf |