diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2022-03-03 22:28:27 +0100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-03-09 14:21:01 +0000 |
| commit | 2e7e2d978bb2cc29b8b0335d46b3ed90ed36bbcc (patch) | |
| tree | 8a22a8eac3c14bcfa9645e0ff267b619defa8ae7 /src/commonlib | |
| parent | 63c6d814ce0511d95d4f3ce57bce64743bc084d8 (diff) | |
coreboot_tables.c: Expose the ACPI RSDP
The ACPI RSDP can only be found in:
- legacy BIOS region
- via UEFI service
On some systems like ARM that legacy BIOS region is not an option, so
to avoid needing UEFI it makes sense to expose the RSDP via a coreboot
table entry.
This also adds the respective unit test.
Change-Id: I591312a2c48f0cbbb03b2787e4b365e9c932afff
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62573
Reviewed-by: Lance Zhao
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/commonlib')
| -rw-r--r-- | src/commonlib/include/commonlib/coreboot_tables.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/commonlib/include/commonlib/coreboot_tables.h b/src/commonlib/include/commonlib/coreboot_tables.h index 91da8e01fa..01b12f3a48 100644 --- a/src/commonlib/include/commonlib/coreboot_tables.h +++ b/src/commonlib/include/commonlib/coreboot_tables.h @@ -85,6 +85,7 @@ enum { LB_TAG_BOARD_CONFIG = 0x0040, LB_TAG_ACPI_CNVS = 0x0041, LB_TAG_TYPE_C_INFO = 0x0042, + LB_TAG_ACPI_RSDP = 0x0043, /* The following options are CMOS-related */ LB_TAG_CMOS_OPTION_TABLE = 0x00c8, LB_TAG_OPTION = 0x00c9, @@ -574,4 +575,15 @@ struct lb_tpm_physical_presence { uint8_t tpm_version; /* 1: TPM1.2, 2: TPM2.0 */ uint8_t ppi_version; /* BCD encoded */ } __packed; + + +/* + * Handoff the ACPI RSDP + */ +struct lb_acpi_rsdp { + uint32_t tag; + uint32_t size; + struct lb_uint64 rsdp_pointer; /* Address of the ACPI RSDP */ +}; + #endif |