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| author | Subrata Banik <subratabanik@google.com> | 2022-08-14 11:18:47 +0530 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2022-08-24 21:25:34 +0000 |
| commit | 3befdf1161f9ee11646f52e0878c756c146d44a4 (patch) | |
| tree | 8603c6bf104b75224ad36c4346d60b185b16be49 /src/device/root_device.c | |
| parent | 9b0f169d2503dc044500e2790b987d766928782a (diff) | |
drivers: Implement EFI_PEI_MP_SERVICES_PPI with FSP_UNSUPPORTED type
This patch implements EFI_PEI_MP_SERVICES_PPI structure definitions
with APIs that return mp_api_unsupported().
The reason behind this change is to fix an FSP issue where FSP assumes
ownership of the APs (Application Processors) upon passing a `NULL`
pointer to the CpuMpPpi FSP-S UPD.Hence, this patch implements
`MP_SERVICES_PPI_DEFAULT` config to fill EFI_PEI_MP_SERVICES_PPI with
`mp_api_unsupported` APIs.
Later this data structure can be passed to the CpuMpPpi UPD to avoid
APs from getting hijacked by FSP while coreboot decides to set
SkipMpInit UPD.
TEST=Able to build and boot Google/Taeko with this patch.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I31fcaa2aa633071b6d6bfa05dbe891ef87978d2c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66708
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/device/root_device.c')
0 files changed, 0 insertions, 0 deletions