[mirror_edk2.git] / EdkCompatibilityPkg / Compatibility / MpServicesOnFrameworkMpServicesThunk / IA32 / MpFuncs.S

#------------------------------------------------------------------------------\r
# IA32 assembly file for AP startup vector.\r
#\r
# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r
# This program and the accompanying materials\r
# are licensed and made available under the terms and conditions of the BSD License\r
# which accompanies this distribution.  The full text of the license may be found at\r
# http://opensource.org/licenses/bsd-license.php\r
#\r
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
#\r
#------------------------------------------------------------------------------\r
\r
.equ                   VacantFlag,       0x0\r
.equ                   NotVacantFlag,    0xff\r
\r
.equ                   LockLocation,     RendezvousFunnelProcEnd - RendezvousFunnelProcStart\r
.equ                   StackStart,       RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x04\r
.equ                   StackSize,        RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x08\r
.equ                   RendezvousProc,   RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x0C\r
.equ                   GdtrProfile,      RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x10\r
.equ                   IdtrProfile,      RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x16\r
.equ                   BufferStart,      RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x1C\r
\r
#-------------------------------------------------------------------------------------\r
#RendezvousFunnelProc  procedure follows. All APs execute their procedure. This\r
#procedure serializes all the AP processors through an Init sequence. It must be\r
#noted that APs arrive here very raw...ie: real mode, no stack.\r
#ALSO THIS PROCEDURE IS EXECUTED BY APs ONLY ON 16 BIT MODE. HENCE THIS PROC\r
#IS IN MACHINE CODE.\r
#-------------------------------------------------------------------------------------\r
#RendezvousFunnelProc (&WakeUpBuffer,MemAddress);\r
\r
ASM_GLOBAL ASM_PFX(RendezvousFunnelProc)\r
ASM_PFX(RendezvousFunnelProc):\r
RendezvousFunnelProcStart:\r
\r
\r
# At this point CS = 0x(vv00) and ip= 0x0.\r
\r
        .byte 0x8c,0xc8               # mov        ax,  cs\r
        .byte 0x8e,0xd8               # mov        ds,  ax\r
        .byte 0x8e,0xc0               # mov        es,  ax\r
        .byte 0x8e,0xd0               # mov        ss,  ax \r
        .byte 0x33,0xc0               # xor        ax,  ax\r
        .byte 0x8e,0xe0               # mov        fs,  ax\r
        .byte 0x8e,0xe8               # mov        gs,  ax\r
\r
# Switch to flat mode.\r
\r
        .byte 0xBE\r
        .word BufferStart\r
        .byte 0x66,0x8B,0xC           # mov        ecx,dword ptr [si]          ; ECX is keeping the start address of wakeup buffer\r
\r
        .byte 0xFA                    # cli\r
        .byte 0xBE\r
        .word GdtrProfile\r
        .byte 0x66                    # db         66h\r
        .byte 0x2E,0xF,0x1,0x14       # lgdt       fword ptr cs:[si]\r
\r
        .byte 0xBE\r
        .word IdtrProfile\r
        .byte 0x66                    # db         66h\r
        .byte 0x2E,0xF,0x1,0x1C       # lidt       fword ptr cs:[si]\r
\r
        .byte 0x33,0xC0               # xor        ax,  ax\r
        .byte 0x8E,0xD8               # mov        ds,  ax\r
        .byte 0xF,0x20,0xC0           # mov        eax, cr0                    ; Get control register 0\r
        .byte 0x66,0x83,0xC8,0x1      # or         eax, 000000001h             ; Set PE bit (bit #0)\r
        .byte 0xF,0x22,0xC0           # mov        cr0, eax\r
\r
\r
#step-4:\r
\r
FLAT32_JUMP:\r
        .byte 0x66\r
        .byte 0x67\r
        .byte 0xEA              # far jump\r
        .long 0x0\r
        .word 0x10\r
\r
ProtectedModeStart:                   # protected mode entry point\r
\r
        movw        $0x8,%ax\r
        .byte       0x66\r
        movw        %ax,%ds\r
        .byte       0x66\r
        movw        %ax,%es\r
        .byte       0x66\r
        movw        %ax,%fs\r
        .byte       0x66\r
        movw        %ax,%gs\r
        .byte       0x66\r
        movw        %ax,%ss           # Flat mode setup.\r
\r
\r
        movl        %esi,%edi\r
        addl        $LockLocation, %edi\r
        movb        $NotVacantFlag, %al\r
TestLock:\r
        xchgb       (%edi), %al\r
        cmpb        $NotVacantFlag, %al\r
        jz          TestLock\r
\r
ProgramStack:\r
        movl        %esi,%edi\r
        addl        $StackSize, %edi\r
        movl        (%edi), %eax\r
        movl        %esi,%edi\r
        addl        $StackStart, %edi\r
        addl        (%edi), %eax\r
        movl        %eax,%esp\r
        movl        %eax, (%edi)\r
\r
Releaselock:\r
        movb        $VacantFlag, %al\r
        movl        %esi,%edi\r
        addl        $LockLocation, %edi\r
        xchgb       (%edi), %al\r
\r
        #\r
        # Call C Function\r
        #\r
        movl        %esi,%edi\r
        addl        $RendezvousProc, %edi\r
        movl        (%edi), %ebx\r
\r
        testl       %ebx,%ebx\r
        jz          GoToSleep\r
        call        *%ebx                         # Call C function\r
\r
#Step-6: Sleep\r
\r
GoToSleep:\r
\r
        cli\r
        hlt\r
        jmp         GoToSleep\r
\r
RendezvousFunnelProcEnd:\r
#-------------------------------------------------------------------------------------\r
#  AsmGetAddressMap (&AddressMap);\r
#-------------------------------------------------------------------------------------\r
ASM_GLOBAL ASM_PFX(AsmGetAddressMap)\r
ASM_PFX(AsmGetAddressMap):\r
\r
        pushal\r
        movl        %esp,%ebp\r
\r
        movl        0x24(%ebp), %ebx\r
        movl        $RendezvousFunnelProcStart, (%ebx)\r
        movl        $(ProtectedModeStart - RendezvousFunnelProcStart), 0x4(%ebx)\r
        movl        $(FLAT32_JUMP - RendezvousFunnelProcStart), 0x8(%ebx)\r
        movl        $0, 0x0c(%ebx)\r
        movl        $0, 0x10(%ebx)\r
        movl        $(RendezvousFunnelProcEnd - RendezvousFunnelProcStart), 0x14(%ebx)\r
\r
        popal\r
        ret\r
Commit	Line	Data
768e2a90	1	#------------------------------------------------------------------------------\r
	2	# IA32 assembly file for AP startup vector.\r
	3	#\r
de243ee4	4	# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r
584d5652	5	# This program and the accompanying materials\r
768e2a90	6	# are licensed and made available under the terms and conditions of the BSD License\r
	7	# which accompanies this distribution. The full text of the license may be found at\r
	8	# http://opensource.org/licenses/bsd-license.php\r
	9	#\r
	10	# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	#\r
	13	#------------------------------------------------------------------------------\r
	14	\r
	15	.equ VacantFlag, 0x0\r
	16	.equ NotVacantFlag, 0xff\r
	17	\r
	18	.equ LockLocation, RendezvousFunnelProcEnd - RendezvousFunnelProcStart\r
19e2bfe8	19	.equ StackStart, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x04\r
	20	.equ StackSize, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x08\r
	21	.equ RendezvousProc, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x0C\r
	22	.equ GdtrProfile, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x10\r
	23	.equ IdtrProfile, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x16\r
	24	.equ BufferStart, RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x1C\r
768e2a90	25	\r
	26	#-------------------------------------------------------------------------------------\r
	27	#RendezvousFunnelProc procedure follows. All APs execute their procedure. This\r
	28	#procedure serializes all the AP processors through an Init sequence. It must be\r
	29	#noted that APs arrive here very raw...ie: real mode, no stack.\r
	30	#ALSO THIS PROCEDURE IS EXECUTED BY APs ONLY ON 16 BIT MODE. HENCE THIS PROC\r
	31	#IS IN MACHINE CODE.\r
	32	#-------------------------------------------------------------------------------------\r
	33	#RendezvousFunnelProc (&WakeUpBuffer,MemAddress);\r
	34	\r
	35	ASM_GLOBAL ASM_PFX(RendezvousFunnelProc)\r
	36	ASM_PFX(RendezvousFunnelProc):\r
	37	RendezvousFunnelProcStart:\r
	38	\r
	39	\r
	40	# At this point CS = 0x(vv00) and ip= 0x0.\r
	41	\r
	42	.byte 0x8c,0xc8 # mov ax, cs\r
	43	.byte 0x8e,0xd8 # mov ds, ax\r
	44	.byte 0x8e,0xc0 # mov es, ax\r
	45	.byte 0x8e,0xd0 # mov ss, ax \r
	46	.byte 0x33,0xc0 # xor ax, ax\r
	47	.byte 0x8e,0xe0 # mov fs, ax\r
	48	.byte 0x8e,0xe8 # mov gs, ax\r
	49	\r
	50	# Switch to flat mode.\r
	51	\r
	52	.byte 0xBE\r
	53	.word BufferStart\r
	54	.byte 0x66,0x8B,0xC # mov ecx,dword ptr [si] ; ECX is keeping the start address of wakeup buffer\r
	55	\r
	56	.byte 0xFA # cli\r
	57	.byte 0xBE\r
	58	.word GdtrProfile\r
	59	.byte 0x66 # db 66h\r
	60	.byte 0x2E,0xF,0x1,0x14 # lgdt fword ptr cs:[si]\r
	61	\r
de243ee4	62	.byte 0xBE\r
	63	.word IdtrProfile\r
	64	.byte 0x66 # db 66h\r
	65	.byte 0x2E,0xF,0x1,0x1C # lidt fword ptr cs:[si]\r
	66	\r
768e2a90	67	.byte 0x33,0xC0 # xor ax, ax\r
	68	.byte 0x8E,0xD8 # mov ds, ax\r
	69	.byte 0xF,0x20,0xC0 # mov eax, cr0 ; Get control register 0\r
	70	.byte 0x66,0x83,0xC8,0x1 # or eax, 000000001h ; Set PE bit (bit #0)\r
	71	.byte 0xF,0x22,0xC0 # mov cr0, eax\r
	72	\r
	73	\r
	74	#step-4:\r
	75	\r
	76	FLAT32_JUMP:\r
	77	.byte 0x66\r
	78	.byte 0x67\r
	79	.byte 0xEA # far jump\r
	80	.long 0x0\r
	81	.word 0x10\r
	82	\r
	83	ProtectedModeStart: # protected mode entry point\r
	84	\r
	85	movw $0x8,%ax\r
	86	.byte 0x66\r
	87	movw %ax,%ds\r
	88	.byte 0x66\r
	89	movw %ax,%es\r
	90	.byte 0x66\r
	91	movw %ax,%fs\r
	92	.byte 0x66\r
	93	movw %ax,%gs\r
	94	.byte 0x66\r
	95	movw %ax,%ss # Flat mode setup.\r
	96	\r
	97	\r
	98	movl %esi,%edi\r
	99	addl $LockLocation, %edi\r
	100	movb $NotVacantFlag, %al\r
	101	TestLock:\r
	102	xchgb (%edi), %al\r
	103	cmpb $NotVacantFlag, %al\r
	104	jz TestLock\r
	105	\r
	106	ProgramStack:\r
	107	movl %esi,%edi\r
	108	addl $StackSize, %edi\r
	109	movl (%edi), %eax\r
	110	movl %esi,%edi\r
	111	addl $StackStart, %edi\r
	112	addl (%edi), %eax\r
	113	movl %eax,%esp\r
	114	movl %eax, (%edi)\r
	115	\r
	116	Releaselock:\r
	117	movb $VacantFlag, %al\r
	118	movl %esi,%edi\r
	119	addl $LockLocation, %edi\r
	120	xchgb (%edi), %al\r
	121	\r
	122	#\r
	123	# Call C Function\r
	124	#\r
	125	movl %esi,%edi\r
	126	addl $RendezvousProc, %edi\r
	127	movl (%edi), %ebx\r
	128	\r
	129	testl %ebx,%ebx\r
	130	jz GoToSleep\r
131	call *%ebx # Call C function\r
132	\r
133	#Step-6: Sleep\r
134	\r
135	GoToSleep:\r
136	\r
137	cli\r
138	hlt\r
139	jmp GoToSleep\r
140	\r
141	RendezvousFunnelProcEnd:\r
142	#-------------------------------------------------------------------------------------\r
143	# AsmGetAddressMap (&AddressMap);\r
144	#-------------------------------------------------------------------------------------\r
145	ASM_GLOBAL ASM_PFX(AsmGetAddressMap)\r
146	ASM_PFX(AsmGetAddressMap):\r
147	\r
148	pushal\r
149	movl %esp,%ebp\r
150	\r
151	movl 0x24(%ebp), %ebx\r
152	movl $RendezvousFunnelProcStart, (%ebx)\r
153	movl $(ProtectedModeStart - RendezvousFunnelProcStart), 0x4(%ebx)\r
154	movl $(FLAT32_JUMP - RendezvousFunnelProcStart), 0x8(%ebx)\r
155	movl $0, 0x0c(%ebx)\r
156	movl $0, 0x10(%ebx)\r
157	movl $(RendezvousFunnelProcEnd - RendezvousFunnelProcStart), 0x14(%ebx)\r
158	\r
159	popal\r
160	ret\r