Re: [edk2-devel] [PATCH v3 4/6] UefiCpuPkg/MpInitLib: Add support for multiple HOBs to MpInitLibInitialize

["Laszlo Ersek" <lersek@redhat.com>]

On 2/22/24 17:01, Gerd Hoffmann wrote:
> Loop over all MP_HAND_OFF HOBs instead of expecting a single HOB
> covering all CPUs in the system.
> 
> Add a new FirstMpHandOff variable, which caches the first HOB body for
> faster lookups.  It is also used to check whenever MP_HAND_OFF HOBs are
> present.  Using the MpHandOff pointer for that does not work any more
> because the variable will be NULL at the end of HOB loops.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> Reviewed-by: Ray Ni <ray.ni@intel.com>
> ---
>  UefiCpuPkg/Library/MpInitLib/MpLib.c | 68 +++++++++++++++++++---------
>  1 file changed, 47 insertions(+), 21 deletions(-)

Based on comparison against v2 (commit message update, plus plan to
extract WaitLoopExecutionMode and StartupSignalValue to a new,
library-internal, HOB):

Reviewed-by: Laszlo Ersek <lersek@redhat.com>



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