All APs use the same common stack to initialization. after initialization, APs should switch to the stack of its own.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chen Fan <[email protected]> --- UefiCpuPkg/CpuDxe/CpuMp.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/UefiCpuPkg/CpuDxe/CpuMp.c b/UefiCpuPkg/CpuDxe/CpuMp.c index 611e3d5..956acf4 100644 --- a/UefiCpuPkg/CpuDxe/CpuMp.c +++ b/UefiCpuPkg/CpuDxe/CpuMp.c @@ -25,6 +25,25 @@ VOID *mApStackStart = 0; volatile UINTN mNumberOfProcessors; /** + Application Processors do loop routine + after switch to its own stack. + +**/ +VOID +ProcessorToIdleState ( + IN VOID *Context1, OPTIONAL + IN VOID *Context2 OPTIONAL + ) +{ + DEBUG ((DEBUG_INFO, "Ap apicid is %d\n", GetApicId ())); + + AsmApDoneWithCommonStack (); + + CpuSleep (); + CpuDeadLoop (); +} + +/** Application Processor C code entry point. **/ @@ -35,6 +54,13 @@ ApEntryPointInC ( ) { mNumberOfProcessors++; + mApStackStart = mApStackStart + gApStackSize; + + SwitchStack ( + (SWITCH_STACK_ENTRY_POINT)(UINTN)ProcessorToIdleState, + NULL, + NULL, + mApStackStart); } -- 1.9.3 ------------------------------------------------------------------------------ Comprehensive Server Monitoring with Site24x7. Monitor 10 servers for $9/Month. Get alerted through email, SMS, voice calls or mobile push notifications. Take corrective actions from your mobile device. http://p.sf.net/sfu/Zoho _______________________________________________ edk2-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/edk2-devel
