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| author | Jordan Justen <jordan.l.justen@intel.com> | 2014-11-13 18:25:29 +0000 |
|---|---|---|
| committer | jljusten <jljusten@Edk2> | 2014-11-13 18:25:29 +0000 |
| commit | 533263ee5a7fe83ad5a0d2da74ff30815c5ab63c (patch) | |
| tree | 84f3cfd7a88fa023ee0cf3900c3d048a73c40d9d /UefiCpuPkg/CpuDxe/CpuMp.h | |
| parent | a1e8986d97d8b3ce3ef2ff9d81f2d6ddf9d8dd1f (diff) | |
| download | edk2-533263ee5a7fe83ad5a0d2da74ff30815c5ab63c.tar.gz edk2-533263ee5a7fe83ad5a0d2da74ff30815c5ab63c.tar.bz2 edk2-533263ee5a7fe83ad5a0d2da74ff30815c5ab63c.zip | |
UefiCpuPkg/CpuDxe: Add StartApsStackless routine
This routine starts the APs and directs them to run the specified
code.
The specified code is entered without a stack being available.
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@16349 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'UefiCpuPkg/CpuDxe/CpuMp.h')
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuMp.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuDxe/CpuMp.h b/UefiCpuPkg/CpuDxe/CpuMp.h index dd2d0e1200..e28f162f53 100644 --- a/UefiCpuPkg/CpuDxe/CpuMp.h +++ b/UefiCpuPkg/CpuDxe/CpuMp.h @@ -24,6 +24,30 @@ InitializeMpSupport ( VOID
);
+typedef
+VOID
+(EFIAPI *STACKLESS_AP_ENTRY_POINT)(
+ VOID
+ );
+
+/**
+ Starts the Application Processors and directs them to jump to the
+ specified routine.
+
+ The processor jumps to this code in flat mode, but the processor's
+ stack is not initialized.
+
+ @param ApEntryPoint Pointer to the Entry Point routine
+
+ @retval EFI_SUCCESS The APs were started
+ @retval EFI_OUT_OF_RESOURCES Cannot allocate memory to start APs
+
+**/
+EFI_STATUS
+StartApsStackless (
+ IN STACKLESS_AP_ENTRY_POINT ApEntryPoint
+ );
+
/**
The AP entry point that the Startup-IPI target code will jump to.
|