diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2013-10-21 12:15:29 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@google.com> | 2014-01-30 06:05:02 +0100 |
| commit | e0785c03310574dcd96d5bbe878a1bae8c0f2a8c (patch) | |
| tree | a4165248a68b0835d38cb4dd723fa39641aa8862 /src/cpu/x86/Kconfig | |
| parent | 75e297428f6a88406fa3e1c0b54ab3d4f411db5c (diff) | |
x86: parallel MP initialization
Provide a common entry point for bringing up the APs
in parallel. This work is based off of the Haswell one
which can be moved over to this in the future. The APs
are brought up and have the BSP's MTRRs duplicated in
their own MTRRs. Additionally, Microcode is loaded before
enabling caching. However, the current microcode loading
support assumes Intel's mechanism.
The infrastructure provides a notion of a flight plan
for the BSP and APs. This allows for flexibility in the
order of operations for a given architecture/chip without
providing any specific policy. Therefore, the chipset
caller can provide the order that is required.
BUG=chrome-os-partner:22862
BRANCH=None
TEST=Built and booted on rambi with baytrail specific patches.
Change-Id: I0539047a1b24c13ef278695737cdba3b9344c820
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173703
Reviewed-on: http://review.coreboot.org/4888
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/cpu/x86/Kconfig')
| -rw-r--r-- | src/cpu/x86/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig index c64a8e477b..21282c321a 100644 --- a/src/cpu/x86/Kconfig +++ b/src/cpu/x86/Kconfig @@ -115,3 +115,10 @@ config X86_AMD_FIXED_MTRRS help This option informs the MTRR code to use the RdMem and WrMem fields in the fixed MTRR MSRs. + +config PARALLEL_MP + def_bool n + help + This option uses common MP infrastructure for bringing up APs + in parallel. It additionally provides a more flexible mechanism + for sequencing the steps of bringing up the APs. |