UefiCpuPkg/CpuMpPei: Get AP reset code size and far jump information

[mirror_edk2.git] / UefiCpuPkg / CpuMpPei / Ia32 / MpFuncs.nasm

diff --git a/UefiCpuPkg/CpuMpPei/Ia32/MpFuncs.nasm b/UefiCpuPkg/CpuMpPei/Ia32/MpFuncs.nasm
index 4a1aa71b8d3852da3e7d9a32f3e6b01d116ab3fd..a3c4ae9e58d91f3ea0982a2e368f4c6170ba5e00 100644 (file)
--- a/UefiCpuPkg/CpuMpPei/Ia32/MpFuncs.nasm
+++ b/UefiCpuPkg/CpuMpPei/Ia32/MpFuncs.nasm
@@ -132,6 +132,22 @@ CProcedureInvoke:
     jmp        $                 ; never reach here
 RendezvousFunnelProcEnd:
 
+;-------------------------------------------------------------------------------------
+;  AsmGetAddressMap (&AddressMap);
+;-------------------------------------------------------------------------------------
+global ASM_PFX(AsmGetAddressMap)
+ASM_PFX(AsmGetAddressMap):
+    pushad
+    mov        ebp,esp
+
+    mov        ebx,  [ebp + 24h]
+    mov        dword [ebx], RendezvousFunnelProcStart
+    mov        dword [ebx +  4h], Flat32Start - RendezvousFunnelProcStart
+    mov        dword [ebx +  8h], 0
+    mov        dword [ebx + 0ch], RendezvousFunnelProcEnd - RendezvousFunnelProcStart
+
+    popad
+    ret
 
 global ASM_PFX(AsmInitializeGdt)
 ASM_PFX(AsmInitializeGdt):