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

#------------------------------------------------------------------------------\r
# IA32 assembly file for AP startup vector.\r
#\r
# Copyright (c) 2009 - 2012, 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
#define VacantFlag       0x0\r
#define NotVacantFlag    0xff\r
\r
#define LockLocation     RendezvousFunnelProcEnd - RendezvousFunnelProcStart\r
#define StackStart       RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x04\r
#define StackSize        RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x08\r
#define RendezvousProc   RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x0C\r
#define GdtrProfile      RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x10\r
#define IdtrProfile      RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x16\r
#define BufferStart      RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x1C\r
#define ProcessorNumber  RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x20\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
        # ProgramStack\r
        #\r
        movl        $0x1b, %ecx\r
        rdmsr\r
\r
        btl         $10, %eax         # Check for x2apic mode\r
        jnc         LegacyApicMode\r
        movl        $0x802, %ecx      # Read APIC_ID\r
        rdmsr\r
        movl        %eax, %ebx        # ebx == apicid\r
        jmp         GetCpuNumber\r
\r
LegacyApicMode:\r
        andl        $0xfffff000, %eax\r
        addl        $0x20, %eax\r
        movl        (%eax), %ebx\r
        shrl        $24, %ebx         # ebx == apicid\r
\r
GetCpuNumber:        \r
        xorl        %ecx, %ecx\r
        movl        %esi,%edi\r
        addl        $ProcessorNumber, %edi\r
        movl        (%edi, %ebx, 4), %ecx\r
\r
        movl        %esi,%edi\r
        addl        $StackSize, %edi\r
        movl        (%edi), %eax\r
        incl        %ecx\r
        mull        %ecx\r
\r
        movl        %esi,%edi\r
        addl        $StackStart, %edi\r
        movl        (%edi), %ebx\r
        addl        %ebx, %eax\r
\r
        movl        %eax, %esp\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
6d896ff1	4	# Copyright (c) 2009 - 2012, 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
830db412	15	#define VacantFlag 0x0\r
830db412	16	#define NotVacantFlag 0xff\r
768e2a90	17	\r
830db412	18	#define LockLocation RendezvousFunnelProcEnd - RendezvousFunnelProcStart\r
	19	#define StackStart RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x04\r
	20	#define StackSize RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x08\r
	21	#define RendezvousProc RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x0C\r
	22	#define GdtrProfile RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x10\r
	23	#define IdtrProfile RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x16\r
	24	#define BufferStart RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x1C\r
133238cb	25	#define ProcessorNumber RendezvousFunnelProcEnd - RendezvousFunnelProcStart + 0x20\r
768e2a90	26	\r
	27	#-------------------------------------------------------------------------------------\r
	28	#RendezvousFunnelProc procedure follows. All APs execute their procedure. This\r
	29	#procedure serializes all the AP processors through an Init sequence. It must be\r
	30	#noted that APs arrive here very raw...ie: real mode, no stack.\r
	31	#ALSO THIS PROCEDURE IS EXECUTED BY APs ONLY ON 16 BIT MODE. HENCE THIS PROC\r
	32	#IS IN MACHINE CODE.\r
	33	#-------------------------------------------------------------------------------------\r
	34	#RendezvousFunnelProc (&WakeUpBuffer,MemAddress);\r
	35	\r
	36	ASM_GLOBAL ASM_PFX(RendezvousFunnelProc)\r
	37	ASM_PFX(RendezvousFunnelProc):\r
	38	RendezvousFunnelProcStart:\r
	39	\r
	40	\r
	41	# At this point CS = 0x(vv00) and ip= 0x0.\r
	42	\r
	43	.byte 0x8c,0xc8 # mov ax, cs\r
	44	.byte 0x8e,0xd8 # mov ds, ax\r
	45	.byte 0x8e,0xc0 # mov es, ax\r
	46	.byte 0x8e,0xd0 # mov ss, ax \r
	47	.byte 0x33,0xc0 # xor ax, ax\r
	48	.byte 0x8e,0xe0 # mov fs, ax\r
	49	.byte 0x8e,0xe8 # mov gs, ax\r
	50	\r
	51	# Switch to flat mode.\r
	52	\r
	53	.byte 0xBE\r
	54	.word BufferStart\r
	55	.byte 0x66,0x8B,0xC # mov ecx,dword ptr [si] ; ECX is keeping the start address of wakeup buffer\r
	56	\r
	57	.byte 0xFA # cli\r
	58	.byte 0xBE\r
	59	.word GdtrProfile\r
	60	.byte 0x66 # db 66h\r
	61	.byte 0x2E,0xF,0x1,0x14 # lgdt fword ptr cs:[si]\r
	62	\r
de243ee4	63	.byte 0xBE\r
	64	.word IdtrProfile\r
	65	.byte 0x66 # db 66h\r
	66	.byte 0x2E,0xF,0x1,0x1C # lidt fword ptr cs:[si]\r
	67	\r
768e2a90	68	.byte 0x33,0xC0 # xor ax, ax\r
	69	.byte 0x8E,0xD8 # mov ds, ax\r
	70	.byte 0xF,0x20,0xC0 # mov eax, cr0 ; Get control register 0\r
	71	.byte 0x66,0x83,0xC8,0x1 # or eax, 000000001h ; Set PE bit (bit #0)\r
	72	.byte 0xF,0x22,0xC0 # mov cr0, eax\r
	73	\r
	74	\r
	75	#step-4:\r
	76	\r
	77	FLAT32_JUMP:\r
	78	.byte 0x66\r
	79	.byte 0x67\r
	80	.byte 0xEA # far jump\r
	81	.long 0x0\r
	82	.word 0x10\r
	83	\r
	84	ProtectedModeStart: # protected mode entry point\r
	85	\r
	86	movw $0x8,%ax\r
	87	.byte 0x66\r
	88	movw %ax,%ds\r
	89	.byte 0x66\r
	90	movw %ax,%es\r
	91	.byte 0x66\r
	92	movw %ax,%fs\r
	93	.byte 0x66\r
	94	movw %ax,%gs\r
	95	.byte 0x66\r
	96	movw %ax,%ss # Flat mode setup.\r
	97	\r
d6d858c4	98	#\r
	99	# ProgramStack\r
	100	#\r
	101	movl $0x1b, %ecx\r
	102	rdmsr\r
6d896ff1	103	\r
	104	btl $10, %eax # Check for x2apic mode\r
	105	jnc LegacyApicMode\r
	106	movl $0x802, %ecx # Read APIC_ID\r
	107	rdmsr\r
	108	movl %eax, %ebx # ebx == apicid\r
	109	jmp GetCpuNumber\r
	110	\r
	111	LegacyApicMode:\r
d6d858c4	112	andl $0xfffff000, %eax\r
	113	addl $0x20, %eax\r
	114	movl (%eax), %ebx\r
6d896ff1	115	shrl $24, %ebx # ebx == apicid\r
	116	\r
	117	GetCpuNumber: \r
d6d858c4	118	xorl %ecx, %ecx\r
768e2a90	119	movl %esi,%edi\r
d6d858c4	120	addl $ProcessorNumber, %edi\r
	121	movl (%edi, %ebx, 4), %ecx\r
	122	\r
768e2a90	123	movl %esi,%edi\r
	124	addl $StackSize, %edi\r
	125	movl (%edi), %eax\r
d6d858c4	126	incl %ecx\r
	127	mull %ecx\r
	128	\r
768e2a90	129	movl %esi,%edi\r
768e2a90	130	addl $StackStart, %edi\r
d6d858c4	131	movl (%edi), %ebx\r
d6d858c4	132	addl %ebx, %eax\r
768e2a90	133	\r
d6d858c4	134	movl %eax, %esp\r
768e2a90	135	\r
	136	#\r
	137	# Call C Function\r
	138	#\r
	139	movl %esi,%edi\r
	140	addl $RendezvousProc, %edi\r
	141	movl (%edi), %ebx\r
	142	\r
	143	testl %ebx,%ebx\r
	144	jz GoToSleep\r
	145	call *%ebx # Call C function\r
	146	\r
	147	#Step-6: Sleep\r
	148	\r
	149	GoToSleep:\r
	150	\r
	151	cli\r
	152	hlt\r
	153	jmp GoToSleep\r
	154	\r
	155	RendezvousFunnelProcEnd:\r
	156	#-------------------------------------------------------------------------------------\r
	157	# AsmGetAddressMap (&AddressMap);\r
	158	#-------------------------------------------------------------------------------------\r
	159	ASM_GLOBAL ASM_PFX(AsmGetAddressMap)\r
	160	ASM_PFX(AsmGetAddressMap):\r
	161	\r
	162	pushal\r
	163	movl %esp,%ebp\r
	164	\r
	165	movl 0x24(%ebp), %ebx\r
	166	movl $RendezvousFunnelProcStart, (%ebx)\r
	167	movl $(ProtectedModeStart - RendezvousFunnelProcStart), 0x4(%ebx)\r
	168	movl $(FLAT32_JUMP - RendezvousFunnelProcStart), 0x8(%ebx)\r
	169	movl $0, 0x0c(%ebx)\r
	170	movl $0, 0x10(%ebx)\r
	171	movl $(RendezvousFunnelProcEnd - RendezvousFunnelProcStart), 0x14(%ebx)\r
	172	\r
	173	popal\r
	174	ret\r