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

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17994 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan 2015-07-15 03:37:25 +00:00 committed by vanjeff
parent 46ba0f63e9
commit 8018cb158c
5 changed files with 77 additions and 0 deletions
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23
UefiCpuPkg/CpuMpPei/CpuMpPei.h
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@ -23,6 +23,16 @@
#include <Library/PeimEntryPoint.h>
#include <Library/UefiCpuLib.h>
//
// AP reset code information
//
typedef struct {
UINT8 *RendezvousFunnelAddress;
UINTN PModeEntryOffset;
UINTN LModeEntryOffset;
UINTN RendezvousFunnelSize;
} MP_ASSEMBLY_ADDRESS_MAP;
#pragma pack(1)
typedef union {
@ -62,6 +72,19 @@ typedef struct {
} MP_CPU_EXCHANGE_INFO;
#pragma pack()
/**
Assembly code to get starting address and size of the rendezvous entry for APs.
Information for fixing a jump instruction in the code is also returned.
@param AddressMap Output buffer for address map information.
**/
VOID
EFIAPI
AsmGetAddressMap (
OUT MP_ASSEMBLY_ADDRESS_MAP *AddressMap
);
/**
Assembly code to load GDT table and update segment accordingly.

16
UefiCpuPkg/CpuMpPei/Ia32/MpFuncs.asm
View File

@ -144,6 +144,22 @@ CProcedureInvoke:
RendezvousFunnelProc ENDP
RendezvousFunnelProcEnd::
;-------------------------------------------------------------------------------------
; AsmGetAddressMap (&AddressMap);
;-------------------------------------------------------------------------------------
AsmGetAddressMap PROC near C PUBLIC
pushad
mov ebp,esp
mov ebx, dword ptr [ebp+24h]
mov dword ptr [ebx], RendezvousFunnelProcStart
mov dword ptr [ebx + 4h], Flat32Start - RendezvousFunnelProcStart
mov dword ptr [ebx + 8h], 0
mov dword ptr [ebx + 0ch], RendezvousFunnelProcEnd - RendezvousFunnelProcStart
popad
ret
AsmGetAddressMap ENDP
AsmInitializeGdt PROC near C PUBLIC
push ebp

16
UefiCpuPkg/CpuMpPei/Ia32/MpFuncs.nasm
View File

@ -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):

11
UefiCpuPkg/CpuMpPei/X64/MpFuncs.asm
View File

@ -181,6 +181,17 @@ CProcedureInvoke:
RendezvousFunnelProc ENDP
RendezvousFunnelProcEnd::
;-------------------------------------------------------------------------------------
; AsmGetAddressMap (&AddressMap);
;-------------------------------------------------------------------------------------
AsmGetAddressMap PROC
mov rax, offset RendezvousFunnelProcStart
mov qword ptr [rcx], rax
mov qword ptr [rcx + 8h], Flat32Start - RendezvousFunnelProcStart
mov qword ptr [rcx + 10h], LongModeStart - RendezvousFunnelProcStart
mov qword ptr [rcx + 18h], RendezvousFunnelProcEnd - RendezvousFunnelProcStart
ret
AsmGetAddressMap ENDP
AsmInitializeGdt PROC
push rbp

11
UefiCpuPkg/CpuMpPei/X64/MpFuncs.nasm
View File

@ -175,6 +175,17 @@ CProcedureInvoke:
RendezvousFunnelProcEnd:
;-------------------------------------------------------------------------------------
; AsmGetAddressMap (&AddressMap);
;-------------------------------------------------------------------------------------
global ASM_PFX(AsmGetAddressMap)
ASM_PFX(AsmGetAddressMap):
mov rax, ASM_PFX(RendezvousFunnelProc)
mov qword [rcx], rax
mov qword [rcx + 8h], Flat32Start - RendezvousFunnelProcStart
mov qword [rcx + 10h], LongModeStart - RendezvousFunnelProcStart
mov qword [rcx + 18h], RendezvousFunnelProcEnd - RendezvousFunnelProcStart
ret
global ASM_PFX(AsmInitializeGdt)
ASM_PFX(AsmInitializeGdt):