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| author | Cole, Deric <deric.cole@intel.com> | 2020-06-02 06:32:25 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-06-23 01:50:29 +0000 |
| commit | 00b8bf7eda00fb6f0197d3968b6078cfdb4870fa (patch) | |
| tree | 59a0836388a60dc11ab118550db7226a40000b27 /IntelFsp2Pkg | |
| parent | 322969adf1fb3d6cfbd613f35121315715aff2ed (diff) | |
| download | edk2-00b8bf7eda00fb6f0197d3968b6078cfdb4870fa.tar.gz edk2-00b8bf7eda00fb6f0197d3968b6078cfdb4870fa.tar.bz2 edk2-00b8bf7eda00fb6f0197d3968b6078cfdb4870fa.zip | |
UefiCpuPkg/SecCore: Add pre-memory AP vector
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2776
Add a vector at 0xFF000 (0xFFFFF000) that can be used by Init-SIPI-SIPI
to start an AP before memory is initialized. This vector jumps into the
same SEC entry point as the ordinary reset vector, with a special value
of "AP" in the DI register. The platform-specific SEC code is expected
to check for that value and take a different path for APs, if this
feature is supported by the platform.
Reviewed-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Deric Cole <deric.cole@intel.com>
Diffstat (limited to 'IntelFsp2Pkg')
0 files changed, 0 insertions, 0 deletions