UefiCpuPkg/CpuMpPei: Add AP reset x64 assembly code

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@17992 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan 2015-07-15 03:36:19 +00:00 committed by vanjeff
parent da1475e092
commit 34ff8715bf
3 changed files with 320 additions and 0 deletions

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@ -18,8 +18,25 @@
;
;-------------------------------------------------------------------------------
PROTECT_MODE_CS equ 10h
PROTECT_MODE_DS equ 18h
LONG_MODE_CS equ 38h
LONG_MODE_DS equ 30h
VacantFlag equ 00h
NotVacantFlag equ 0ffh
LockLocation equ (RendezvousFunnelProcEnd - RendezvousFunnelProcStart)
StackStartAddressLocation equ LockLocation + 08h
StackSizeLocation equ LockLocation + 10h
ApProcedureLocation equ LockLocation + 18h
GdtrLocation equ LockLocation + 20h
IdtrLocation equ LockLocation + 2Ah
BufferStartLocation equ LockLocation + 34h
PmodeOffsetLocation equ LockLocation + 3Ch
NumApsExecutingLoction equ LockLocation + 44h
LmodeOffsetLocation equ LockLocation + 4Ch
Cr3Location equ LockLocation + 54h
;-------------------------------------------------------------------------------

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@ -20,6 +20,160 @@
include MpEqu.inc
.code
;-------------------------------------------------------------------------------------
;RendezvousFunnelProc procedure follows. All APs execute their procedure. This
;procedure serializes all the AP processors through an Init sequence. It must be
;noted that APs arrive here very raw...ie: real mode, no stack.
;ALSO THIS PROCEDURE IS EXECUTED BY APs ONLY ON 16 BIT MODE. HENCE THIS PROC
;IS IN MACHINE CODE.
;-------------------------------------------------------------------------------------
RendezvousFunnelProc PROC PUBLIC
RendezvousFunnelProcStart::
; At this point CS = 0x(vv00) and ip= 0x0.
; Save BIST information to ebp firstly
db 66h, 08bh, 0e8h ; mov ebp, eax ; save BIST information
db 8ch,0c8h ; mov ax,cs
db 8eh,0d8h ; mov ds,ax
db 8eh,0c0h ; mov es,ax
db 8eh,0d0h ; mov ss,ax
db 33h,0c0h ; xor ax,ax
db 8eh,0e0h ; mov fs,ax
db 8eh,0e8h ; mov gs,ax
db 0BEh ; opcode of mov si, mem16
dw BufferStartLocation ; mov si, BufferStartLocation
db 66h, 8Bh, 1Ch ; mov ebx,dword ptr [si]
db 0BFh ; opcode of mov di, mem16
dw PmodeOffsetLocation ; mov di, PmodeOffsetLocation
db 66h, 8Bh, 05h ; mov eax,dword ptr [di]
db 8Bh, 0F8h ; mov di, ax
db 83h, 0EFh,06h ; sub di, 06h
db 66h, 03h, 0C3h ; add eax, ebx
db 66h, 89h, 05h ; mov dword ptr [di],eax
db 0BFh ; opcode of mov di, mem16
dw LmodeOffsetLocation ; mov di, LmodeOffsetLocation
db 66h, 8Bh, 05h ; mov eax,dword ptr [di]
db 8Bh, 0F8h ; mov di, ax
db 83h, 0EFh,06h ; sub di, 06h
db 66h, 03h, 0C3h ; add eax, ebx
db 66h, 89h, 05h ; mov dword ptr [di],eax
db 0BEh
dw Cr3Location ; mov si, Cr3Location
db 66h, 8Bh, 0Ch ; mov ecx,dword ptr [si] ; ECX is keeping the value of CR3
db 0BEh ; opcode of mov si, mem16
dw GdtrLocation ; mov si, GdtrLocation
db 66h ; db 66h
db 2Eh, 0Fh, 01h, 14h ; lgdt fword ptr cs:[si]
db 0BEh
dw IdtrLocation ; mov si, IdtrLocation
db 66h ; db 66h
db 2Eh,0Fh, 01h, 1Ch ; lidt fword ptr cs:[si]
db 33h, 0C0h ; xor ax, ax
db 8Eh, 0D8h ; mov ds, ax
db 0Fh, 20h, 0C0h ; mov eax, cr0 ;Get control register 0
db 66h, 83h, 0C8h, 03h ; or eax, 000000003h ;Set PE bit (bit #0) & MP
db 0Fh, 22h, 0C0h ; mov cr0, eax
db 66h, 67h, 0EAh ; far jump
dd 0h ; 32-bit offset
dw PROTECT_MODE_CS ; 16-bit selector
Flat32Start:: ; protected mode entry point
mov ax, PROTECT_MODE_DS
mov ds, ax
mov es, ax
mov fs, ax
mov gs, ax
mov ss, ax
db 0Fh, 20h, 0E0h ; mov eax, cr4
db 0Fh, 0BAh, 0E8h, 05h ; bts eax, 5
db 0Fh, 22h, 0E0h ; mov cr4, eax
db 0Fh, 22h, 0D9h ; mov cr3, ecx
db 0B9h
dd 0C0000080h ; mov ecx, 0c0000080h ; EFER MSR number.
db 0Fh, 32h ; rdmsr ; Read EFER.
db 0Fh, 0BAh, 0E8h, 08h ; bts eax, 8 ; Set LME=1.
db 0Fh, 30h ; wrmsr ; Write EFER.
db 0Fh, 20h, 0C0h ; mov eax, cr0 ; Read CR0.
db 0Fh, 0BAh, 0E8h, 1Fh ; bts eax, 31 ; Set PG=1.
db 0Fh, 22h, 0C0h ; mov cr0, eax ; Write CR0.
LONG_JUMP:
db 67h, 0EAh ; far jump
dd 0h ; 32-bit offset
dw LONG_MODE_CS ; 16-bit selector
LongModeStart::
mov ax, LONG_MODE_DS
mov ds, ax
mov es, ax
mov ss, ax
mov esi, ebx
mov edi, esi
add edi, LockLocation
mov rax, NotVacantFlag
TestLock:
xchg qword ptr [edi], rax
cmp rax, NotVacantFlag
jz TestLock
mov edi, esi
add edi, NumApsExecutingLoction
inc dword ptr [edi]
mov ebx, dword ptr [edi]
ProgramStack:
mov edi, esi
add edi, StackSizeLocation
mov rax, qword ptr [edi]
mov edi, esi
add edi, StackStartAddressLocation
add rax, qword ptr [edi]
mov rsp, rax
mov qword ptr [edi], rax
Releaselock:
mov rax, VacantFlag
mov edi, esi
add edi, LockLocation
xchg qword ptr [edi], rax
CProcedureInvoke:
push rbp ; push BIST data
xor rbp, rbp ; clear ebp for call stack trace
push rbp
mov rbp, rsp
mov edx, ebx ; edx is NumApsExecuting
mov ecx, esi
add ecx, LockLocation ; rcx is address of exchange info data buffer
mov edi, esi
add edi, ApProcedureLocation
mov rax, qword ptr [edi]
sub rsp, 20h
call rax ; invoke C function
add rsp, 20h
jmp $
RendezvousFunnelProc ENDP
RendezvousFunnelProcEnd::
AsmInitializeGdt PROC

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@ -19,9 +19,158 @@
;-------------------------------------------------------------------------------
%include "MpEqu.inc"
DEFAULT REL
SECTION .text
;-------------------------------------------------------------------------------------
;RendezvousFunnelProc procedure follows. All APs execute their procedure. This
;procedure serializes all the AP processors through an Init sequence. It must be
;noted that APs arrive here very raw...ie: real mode, no stack.
;ALSO THIS PROCEDURE IS EXECUTED BY APs ONLY ON 16 BIT MODE. HENCE THIS PROC
;IS IN MACHINE CODE.
;-------------------------------------------------------------------------------------
global ASM_PFX(RendezvousFunnelProc)
ASM_PFX(RendezvousFunnelProc):
RendezvousFunnelProcStart:
; At this point CS = 0x(vv00) and ip= 0x0.
; Save BIST information to ebp firstly
BITS 16
mov eax, 1234h
mov ebp, eax ; save BIST information
mov ax, cs
mov ds, ax
mov es, ax
mov ss, ax
xor ax, ax
mov fs, ax
mov gs, ax
mov si, BufferStartLocation
mov ebx, [si]
mov di, PmodeOffsetLocation
mov eax, [di]
mov di, ax
sub di, 06h
add eax, ebx
mov [di],eax
mov di, LmodeOffsetLocation
mov eax, [di]
mov di, ax
sub di, 06h
add eax, ebx
mov [di],eax
mov si, Cr3Location
mov ecx,[si] ; ECX is keeping the value of CR3
mov si, GdtrLocation
o32 lgdt [cs:si]
mov si, IdtrLocation
o32 lidt [cs:si]
xor ax, ax
mov ds, ax
mov eax, cr0 ;Get control register 0
or eax, 000000003h ;Set PE bit (bit #0) & MP
mov cr0, eax
jmp PROTECT_MODE_CS:strict dword 0 ; far jump to protected mode
BITS 32
Flat32Start: ; protected mode entry point
mov ax, PROTECT_MODE_DS
mov ds, ax
mov es, ax
mov fs, ax
mov gs, ax
mov ss, ax
mov eax, cr4
bts eax, 5
mov cr4, eax
mov cr3, ecx
mov ecx, 0c0000080h ; EFER MSR number.
rdmsr ; Read EFER.
bts eax, 8 ; Set LME=1.
wrmsr ; Write EFER.
mov eax, cr0 ; Read CR0.
bts eax, 31 ; Set PG=1.
mov cr0, eax ; Write CR0.
jmp LONG_MODE_CS:strict dword 0 ; far jump to long mode
BITS 64
LongModeStart:
mov ax, LONG_MODE_DS
mov ds, ax
mov es, ax
mov ss, ax
mov esi, ebx
mov edi, esi
add edi, LockLocation
mov rax, NotVacantFlag
TestLock:
xchg qword [edi], rax
cmp rax, NotVacantFlag
jz TestLock
mov edi, esi
add edi, NumApsExecutingLoction
inc dword [edi]
mov ebx, [edi]
ProgramStack:
mov edi, esi
add edi, StackSizeLocation
mov rax, qword [edi]
mov edi, esi
add edi, StackStartAddressLocation
add rax, qword [edi]
mov rsp, rax
mov qword [edi], rax
Releaselock:
mov rax, VacantFlag
mov edi, esi
add edi, LockLocation
xchg qword [edi], rax
CProcedureInvoke:
push rbp ; push BIST data at top of AP stack
xor rbp, rbp ; clear ebp for call stack trace
push rbp
mov rbp, rsp
mov edx, ebx ; edx is NumApsExecuting
mov ecx, esi
add ecx, LockLocation ; rcx is address of exchange info data buffer
mov edi, esi
add edi, ApProcedureLocation
mov rax, qword [edi]
sub rsp, 20h
call rax ; invoke C function
add rsp, 20h
RendezvousFunnelProcEnd:
global ASM_PFX(AsmInitializeGdt)
ASM_PFX(AsmInitializeGdt):
push rbp