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| author | Eric Dong <eric.dong@intel.com> | 2018-06-19 13:15:39 +0800 |
|---|---|---|
| committer | Eric Dong <eric.dong@intel.com> | 2018-06-19 13:15:39 +0800 |
| commit | bf252e29a5a1a68fdd584b1cd117b728d7d67ec0 (patch) | |
| tree | 362cc65935e20ff0583632d570e13f087ae2ca72 /UefiCpuPkg/CpuDxe/CpuPageTable.c | |
| parent | aeb6f576258ef18c0debca1d6b908df1799e0d9b (diff) | |
| download | edk2-bf252e29a5a1a68fdd584b1cd117b728d7d67ec0.tar.gz edk2-bf252e29a5a1a68fdd584b1cd117b728d7d67ec0.tar.bz2 edk2-bf252e29a5a1a68fdd584b1cd117b728d7d67ec0.zip | |
UefiCpuPkg/LocalApicLib: Exclude second SendIpi sequence on AMD processors.
On AMD processors the second SendIpi in the SendInitSipiSipi and
SendInitSipiSipiAllExcludingSelf routines is not required, and may cause
undesired side-effects during MP initialization.
This patch leverages the StandardSignatureIsAuthenticAMD check to exclude
the second SendIpi and its associated MicroSecondDelay (200).
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Leo Duran <leo.duran@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'UefiCpuPkg/CpuDxe/CpuPageTable.c')
0 files changed, 0 insertions, 0 deletions