Revision: 16370
http://sourceforge.net/p/edk2/code/16370
Author: jljusten
Date: 2014-11-13 18:30:09 +0000 (Thu, 13 Nov 2014)
Log Message:
-----------
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 <[email protected]>
Signed-off-by: Chen Fan <[email protected]>
Reviewed-by: Jeff Fan <[email protected]>
Modified Paths:
--------------
trunk/edk2/UefiCpuPkg/CpuDxe/CpuMp.c
Modified: trunk/edk2/UefiCpuPkg/CpuDxe/CpuMp.c
===================================================================
--- trunk/edk2/UefiCpuPkg/CpuDxe/CpuMp.c 2014-11-13 18:29:54 UTC (rev
16369)
+++ trunk/edk2/UefiCpuPkg/CpuDxe/CpuMp.c 2014-11-13 18:30:09 UTC (rev
16370)
@@ -1500,6 +1500,9 @@
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));
------------------------------------------------------------------------------
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