diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2016-12-07 00:32:19 -0600 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2016-12-08 21:39:43 +0100 |
| commit | b21e362e93993a8879906cf3fa56586b84226920 (patch) | |
| tree | 0536129b69e5d52d35814f43f16db69d8a42e6e7 /src/cpu/x86/Kconfig | |
| parent | 16bd2676ce1dcec342de19640c45bd7216ba70f1 (diff) | |
| download | coreboot-b21e362e93993a8879906cf3fa56586b84226920.tar.xz | |
cpu/x86: allow AP callbacks after MP init
There are circumstances where the APs need to run a piece of
code later in the boot flow. The current MP init just parks
the APs after MP init is completed so there's not an opportunity
to target running a piece of code on all the APs at a later time.
Therefore, provide an option, PARALLEL_MP_AP_WORK, that allows
the APs to perform callbacks.
BUG=chrome-os-partner:60657
BRANCH=reef
Change-Id: I849ecfdd6641dd9424943e246317cd1996ef1ba6
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/17745
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Diffstat (limited to 'src/cpu/x86/Kconfig')
| -rw-r--r-- | src/cpu/x86/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig index 3e56d721f5..2e233cc778 100644 --- a/src/cpu/x86/Kconfig +++ b/src/cpu/x86/Kconfig @@ -10,6 +10,12 @@ config PARALLEL_MP in parallel. It additionally provides a more flexible mechanism for sequencing the steps of bringing up the APs. +config PARALLEL_MP_AP_WORK + def_bool n + depends on PARALLEL_MP + help + Allow APs to do other work after initialization instead of going + to sleep. config UDELAY_IO bool |