diff options
| author | Jordan Justen <jordan.l.justen@intel.com> | 2014-11-13 18:30:09 +0000 |
|---|---|---|
| committer | jljusten <jljusten@Edk2> | 2014-11-13 18:30:09 +0000 |
| commit | dee9376ffc6e5522bb5e50512b521952a5421fa5 (patch) | |
| tree | 6620249a5b4f5a0d6fdaf571e2e11bd936e549e4 /UefiCpuPkg | |
| parent | cd8c700b03e38e9389a8f13e193a431072802593 (diff) | |
| download | edk2-platforms-dee9376ffc6e5522bb5e50512b521952a5421fa5.tar.xz | |
UefiCpuPkg/CpuDxe: Startup APs
This sequence should happen:
* CpuMp.c: Allocate a stack for the APs
* ApStartup.c: Send Start IPI to wake APs in 16-bit real mode
* MpAsm.S: AP enters CpuDxe driver code without stack
- AP grabs a lock
- AP sets up stack
- AP calls CpuMp.c:ApEntryPointInC
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16370 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'UefiCpuPkg')
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuMp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuDxe/CpuMp.c b/UefiCpuPkg/CpuDxe/CpuMp.c index 5d5c7db765..2bc9f70bbb 100644 --- a/UefiCpuPkg/CpuDxe/CpuMp.c +++ b/UefiCpuPkg/CpuDxe/CpuMp.c @@ -1500,6 +1500,9 @@ InitializeMpSupport ( PrepareAPStartupCode ();
+ StartApsStackless ();
+
+ DEBUG ((DEBUG_INFO, "Detect CPU count: %d\n", mMpSystemData.NumberOfProcessors));
if (mMpSystemData.NumberOfProcessors == 1) {
FreeApStartupCode ();
FreePages (mCommonStack, EFI_SIZE_TO_PAGES (gMaxLogicalProcessorNumber * gApStackSize));
|