Revision: 16478
http://sourceforge.net/p/edk2/code/16478
Author: jyao1
Date: 2014-12-06 00:29:04 +0000 (Sat, 06 Dec 2014)
Log Message:
-----------
Updated FspApiEntry.asm/.s to auto detect the size of the MCU region.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <[email protected]>
Reviewed-by: "Rangarajan, Ravi P" <[email protected]>
Reviewed-by: "Ma, Maurice" <[email protected]>
Reviewed-by: "Mudusuru, Giri P" <[email protected]>
Modified Paths:
--------------
trunk/edk2/IntelFspPkg/FspSecCore/Ia32/FspApiEntry.asm
trunk/edk2/IntelFspPkg/FspSecCore/Ia32/FspApiEntry.s
Modified: trunk/edk2/IntelFspPkg/FspSecCore/Ia32/FspApiEntry.asm
===================================================================
--- trunk/edk2/IntelFspPkg/FspSecCore/Ia32/FspApiEntry.asm 2014-12-05
02:33:45 UTC (rev 16477)
+++ trunk/edk2/IntelFspPkg/FspSecCore/Ia32/FspApiEntry.asm 2014-12-06
00:29:04 UTC (rev 16478)
@@ -214,16 +214,21 @@
check_address:
; Is valid Microcode start point ?
- cmp dword ptr [esi], 0ffffffffh
+ cmp dword ptr [esi].ucode_hdr.version, 0ffffffffh
jz done
+ ; Is automatic size detection ?
+ mov eax, [esp].LOAD_UCODE_PARAMS.ucode_code_size
+ cmp eax, 0ffffffffh
+ jz @f
+
; Address >= microcode region address + microcode region size?
- mov eax, [esp].LOAD_UCODE_PARAMS.ucode_code_addr
- add eax, [esp].LOAD_UCODE_PARAMS.ucode_code_size
+ add eax, [esp].LOAD_UCODE_PARAMS.ucode_code_addr
cmp esi, eax
jae done ;Jif address is outside of ucode region
jmp check_main_header
+@@:
load_check:
; Get the revision of the current microcode update loaded
mov ecx, MSR_IA32_BIOS_SIGN_ID
Modified: trunk/edk2/IntelFspPkg/FspSecCore/Ia32/FspApiEntry.s
===================================================================
--- trunk/edk2/IntelFspPkg/FspSecCore/Ia32/FspApiEntry.s 2014-12-05
02:33:45 UTC (rev 16477)
+++ trunk/edk2/IntelFspPkg/FspSecCore/Ia32/FspApiEntry.s 2014-12-06
00:29:04 UTC (rev 16478)
@@ -15,310 +15,438 @@
#
#------------------------------------------------------------------------------
-#.INCLUDE "UcodeLoad.inc"
+#.INCLUDE "UcodeLoadGcc.inc" - begin
-#
-# Following are fixed PCDs
-#
+.equ MSR_IA32_PLATFORM_ID, 0x00000017
+.equ MSR_IA32_BIOS_UPDT_TRIG, 0x00000079
+.equ MSR_IA32_BIOS_SIGN_ID, 0x0000008b
-.equ MSR_IA32_PLATFORM_ID, 0x000000017
-.equ MSR_IA32_BIOS_UPDT_TRIG, 0x000000079
-.equ MSR_IA32_BIOS_SIGN_ID, 0x00000008b
+Ucode:
+.equ UcodeVersion, 0x0000
+.equ UcodeRevision, 0x0004
+.equ UcodeDate, 0x0008
+.equ UcodeProcessor, 0x000C
+.equ UcodeChecksum, 0x0010
+.equ UcodeLoader, 0x0014
+.equ UcodeRsvd, 0x0018
+UcodeEnd:
-ASM_GLOBAL ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamBase)
-ASM_GLOBAL ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamSize)
-ASM_GLOBAL ASM_PFX(_gPcd_FixedAtBuild_PcdFspTemporaryRamSize)
-ASM_GLOBAL ASM_PFX(_gPcd_FixedAtBuild_PcdFspAreaSize)
+UcodeHdr:
+.equ UcodeHdrVersion, 0x0000
+.equ UcodeHdrRevision, 0x0004
+.equ UcodeHdrDate, 0x0008
+.equ UcodeHdrProcessor, 0x000c
+.equ UcodeHdrChecksum, 0x0010
+.equ UcodeHdrLoader, 0x0014
+.equ UcodeHdrFlags, 0x0018
+.equ UcodeHdrDataSize, 0x001C
+.equ UcodeHdrTotalSize, 0x0020
+.equ UcodeHdrRsvd, 0x0024
+UcodeHdrEnd:
+.equ UcodeHdrLength, 0x0030 # UcodeHdrLength =
UcodeHdrEnd - UcodeHdr
+ExtSigHdr:
+.equ ExtSigHdrCount, 0x0000
+.equ ExtSigHdrChecksum, 0x0004
+.equ rsvd, 0x0008
+ExtSigHdrEnd:
+.equ ExtSigHdrLength, 0x0014 #ExtSigHdrLength =
ExtSigHdrEnd - ExtSigHdr
+
+ExtSig:
+.equ ExtSigProcessor, 0x0000
+.equ ExtSigFlags, 0x0004
+.equ ExtSigChecksum, 0x0008
+ExtSigEnd:
+.equ ExtSigLength, 0x000C #ExtSigLength = ExtSigEnd
- ExtSig
+
+LoadUcodeParams:
+.equ LoadUcodeParamsUcodeCodeAddr, 0x0000
+.equ LoadUcodeParamsUcodeCodeSize, 0x0004
+LoadUcodeParamsEnd:
+
+#.INCLUDE "UcodeLoadGcc.inc" - end
+
+#.INCLUDE "SaveRestoreSseGcc.inc" - begin
+
+.macro SAVE_REGS
+ pinsrw $0x00, %ebp, %xmm7
+ ror $0x10, %ebp
+ pinsrw $0x01, %ebp, %xmm7
+ ror $0x10, %ebp
#
-# Following functions will be provided in C
+ pinsrw $0x02, %ebx, %xmm7
+ ror $0x10, %ebx
+ pinsrw $0x03, %ebx, %xmm7
+ ror $0x10, %ebx
#
-#EXTERNDEF SecStartup:PROC
-#EXTERNDEF FspApiCallingCheck:PROC
-
+ pinsrw $0x04, %esi, %xmm7
+ ror $0x10, %esi
+ pinsrw $0x05, %esi, %xmm7
+ ror $0x10, %esi
#
-# Following functions will be provided in PlatformSecLib
+ pinsrw $0x06, %edi, %xmm7
+ ror $0x10, %edi
+ pinsrw $0x07, %edi, %xmm7
+ ror $0x10, %edi
#
-#EXTERNDEF GetFspBaseAddress:PROC
-#EXTERNDEF GetBootFirmwareVolumeOffset:PROC
-#EXTERNDEF PlatformTempRamInit:PROC
-#EXTERNDEF Pei2LoaderSwitchStack:PROC
-#EXTERN FspSelfCheck(FspSelfCheckDflt):PROC
-#EXTERN PlatformBasicInit(PlatformBasicInitDflt):PROC
+ pinsrw $0x00, %esp, %xmm6
+ ror $0x10, %esp
+ pinsrw $0x01, %esp, %xmm6
+ ror $0x10, %esp
+.endm
+.macro LOAD_REGS
+ pshufd $0xe4, %xmm7, %xmm7
+ movd %xmm7, %ebp
+ pshufd $0xe4, %xmm7, %xmm7
#
-# Define the data length that we saved on the stack top
+ pshufd $0x39, %xmm7, %xmm7
+ movd %xmm7, %ebx
+ pshufd $0x93, %xmm7, %xmm7
#
-.equ DATA_LEN_OF_PER0, 0x018
-.equ DATA_LEN_OF_MCUD, 0x018
-.equ DATA_LEN_AT_STACK_TOP, (DATA_LEN_OF_PER0 +
DATA_LEN_OF_MCUD + 4)
-
+ pshufd $0x4e, %xmm7, %xmm7
+ movd %xmm7, %esi
+ pshufd $0x4e, %xmm7, %xmm7
#
-# Define SSE macros
+ pshufd $0x93, %xmm7, %xmm7
+ movd %xmm7, %edi
+ pshufd $0x39, %xmm7, %xmm7
#
-.macro ENABLE_SSE
- movl %cr4, %eax
- orl $0x00000600,%eax # Set OSFXSR bit (bit #9) & OSXMMEXCPT bit
(bit #10)
- movl %eax,%cr4
+ movd %xmm6, %esp
.endm
-.macro SAVE_REGS
- movd %ebp, %xmm7
- pshufd $0x93, %xmm7, %xmm7
- movd %ebx, %xmm6
- por %xmm6, %xmm7
- pshufd $0x93, %xmm7, %xmm7
- movd %esi,%xmm6
- por %xmm6, %xmm7
- pshufd $0x93, %xmm7, %xmm7
- movd %edi, %xmm6
- por %xmm6, %xmm7
- movd %esp, %xmm6
+.macro LOAD_EAX
+ pshufd $0x39, %xmm6, %xmm6
+ movd %xmm6, %eax
+ pshufd $0x93, %xmm6, %xmm6
.endm
-.macro LOAD_REGS
- movd %xmm6, %esp
- movd %xmm7, %edi
- pshufd $0x39,%xmm7, %xmm7
- movd %xmm7, %esi
- pshufd $0x39,%xmm7, %xmm7
- movd %xmm7, %ebx
- pshufd $0x39, %xmm7, %xmm7
- movd %xmm7, %ebp
+.macro LOAD_EDX
+ pshufd $0xe4, %xmm6, %xmm6
+ movd %xmm6, %edx
+ pshufd $0xe4, %xmm6, %xmm6
.endm
+.macro SAVE_EAX
+ pinsrw $0x02, %eax, %xmm6
+ ror $0x10, %eax
+ pinsrw $0x03, %eax, %xmm6
+ ror $0x10, %eax
+.endm
+
+.macro SAVE_EDX
+ pinsrw $0x04, %edx, %xmm6
+ ror $0x10, %edx
+ pinsrw $0x05, %edx, %xmm6
+ ror $0x10, %edx
+.endm
+
.macro LOAD_ESP
movd %xmm6, %esp
.endm
+.macro ENABLE_SSE
+ movl %cr4, %eax
+ orl $0x00000600, %eax # Set OSFXSR bit (bit #9) &
OSXMMEXCPT bit (bit #10)
+ movl %eax,%cr4
+.endm
+
+#.INCLUDE "SaveRestoreSseGcc.inc" - end
+
+
+#
+# Following are fixed PCDs
+#
+ASM_GLOBAL ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamBase)
+ASM_GLOBAL ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamSize)
+ASM_GLOBAL ASM_PFX(_gPcd_FixedAtBuild_PcdFspTemporaryRamSize)
+
+#
+# Following functions will be provided in C
+#
+ASM_GLOBAL ASM_PFX(FspImageSizeOffset)
+ASM_GLOBAL ASM_PFX(SecStartup)
+ASM_GLOBAL ASM_PFX(FspApiCallingCheck)
+
+#
+# Following functions will be provided in PlatformSecLib
+#
+ASM_GLOBAL ASM_PFX(GetBootFirmwareVolumeOffset)
+ASM_GLOBAL ASM_PFX(Pei2LoaderSwitchStack)
+
+
+#
+# Define the data length that we saved on the stack top
+#
+.equ DATA_LEN_OF_PER0, 0x018
+.equ DATA_LEN_OF_MCUD, 0x018
+.equ DATA_LEN_AT_STACK_TOP, (DATA_LEN_OF_PER0 + DATA_LEN_OF_MCUD + 4)
+
#------------------------------------------------------------------------------
+# FspSelfCheckDflt
+# Inputs:
+# eax -> Return address
+# Outputs:
+# eax -> 0 - Successful, Non-zero - Failed.
+# Register Usage:
+# eax is cleared and ebp is used for return address.
+# All others reserved.
+#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(FspSelfCheckDflt)
ASM_PFX(FspSelfCheckDflt):
- # Inputs:
- # eax -> Return address
- # Outputs:
- # eax -> 0 - Successful, Non-zero - Failed.
- # Register Usage:
- # eax is cleared and ebp is used for return address.
- # All others reserved.
-
+ #
# Save return address to EBP
+ #
movl %eax, %ebp
xorl %eax, %eax
-exit:
+
+FspSelfCheckDfltExit:
jmp *%ebp
-#FspSelfCheckDflt ENDP
+
#------------------------------------------------------------------------------
+# PlatformBasicInitDflt
+# Inputs:
+# eax -> Return address
+# Outputs:
+# eax -> 0 - Successful, Non-zero - Failed.
+# Register Usage:
+# eax is cleared and ebp is used for return address.
+# All others reserved.
+#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(PlatformBasicInitDflt)
ASM_PFX(PlatformBasicInitDflt):
- # Inputs:
- # eax -> Return address
- # Outputs:
- # eax -> 0 - Successful, Non-zero - Failed.
- # Register Usage:
- # eax is cleared and ebp is used for return address.
- # All others reserved.
-
+ #
# Save return address to EBP
+ #
movl %eax, %ebp
xorl %eax, %eax
-exit2:
+
+PlatformBasicInitDfltExit:
jmp *%ebp
-#PlatformBasicInitDflt ENDP
+
#------------------------------------------------------------------------------
+# LoadUcode
+#
+# Inputs:
+# esp -> LOAD_UCODE_PARAMS pointer
+# Register Usage:
+# esp Preserved
+# All others destroyed
+# Assumptions:
+# No memory available, stack is hard-coded and used for return address
+# Executed by SBSP and NBSP
+# Beginning of microcode update region starts on paragraph boundary
+#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(LoadUcode)
-ASM_PFX(LoadUcode):
- # Inputs:
- # esp -> LOAD_UCODE_PARAMS pointer
- # Register Usage:
- # esp Preserved
- # All others destroyed
- # Assumptions:
- # No memory available, stack is hard-coded and used for return address
- # Executed by SBSP and NBSP
- # Beginning of microcode update region starts on paragraph boundary
-
+ASM_PFX(LoadUcode):
#
+ # Save return address to EBP
#
- # Save return address to EBP
movl %eax, %ebp
- cmpl $0, %esp
- jz paramerror
- movl (%esp), %eax #dword ptr [] Parameter pointer
- cmpl $0, %eax
- jz paramerror
+ cmpl $0x00, %esp
+ jz ParamError
+ movl (%esp), %eax #dword ptr [] Parameter
pointer
+ cmpl $0x00, %eax
+ jz ParamError
movl %eax, %esp
- movl (%esp), %esi #LOAD_UCODE_PARAMS.ucode_code_addr
- cmpl $0, %esi
- jnz L0
+ movl LoadUcodeParamsUcodeCodeAddr(%esp), %esi #mov esi,
[esp].LOAD_UCODE_PARAMS.ucode_code_addr
+ cmpl $0x00, %esi
+ jnz CheckMainHeader
-paramerror:
- movl $0x080000002, %eax
- jmp exit4
+ParamError:
+ movl $0x080000002, %eax
+ jmp LoadUcodeExit
- movl (%esp), %esi #.LOAD_UCODE_PARAMS.ucode_code_addr
-
-check_main_header:
+CheckMainHeader:
+ #
# Get processor signature and platform ID from the installed processor
# and save into registers for later use
# ebx = processor signature
# edx = platform ID
- movl $1, %eax
+ #
+ movl $0x01, %eax
cpuid
movl %eax, %ebx
- movl MSR_IA32_PLATFORM_ID, %ecx
+ movl $MSR_IA32_PLATFORM_ID, %ecx
rdmsr
- movl %edx, %ecx
-
#--------------------------------------------------------------------------------------------------------------------
- shrl $18, %ecx #($50-$32)
- andl $0x7, %ecx
- movl $1, %edx
- shll %cl,%edx
+ movl %edx, %ecx
+ shrl $0x12, %ecx #($50-$32)
+ andl $0x07, %ecx
+ movl $0x01, %edx
+ shll %cl,%edx
+ #
# Current register usage
# esp -> stack with paramters
# esi -> microcode update to check
# ebx = processor signature
# edx = platform ID
+ #
+ #
# Check for valid microcode header
# Minimal test checking for header version and loader version as 1
- movl $1, %eax
- cmpl %eax, (%esi) #.ucode_hdr.version
- jne advance_fixed_size
- cmpl %eax, 0x18(%esi) #.ucode_hdr.loader
- jne advance_fixed_size
+ #
+ movl $0x01, %eax
+ cmpl %eax, UcodeHdrVersion(%esi) #cmp [esi].ucode_hdr.version,
eax
+ jne AdvanceFixedSize
+ cmpl %eax, UcodeHdrLoader(%esi) #cmp [esi].ucode_hdr.loader, eax
+ jne AdvanceFixedSize
+ #
# Check if signature and plaform ID match
-
#--------------------------------------------------------------------------------------------------------------------------
- cmpl 0x10(%esi), %ebx #(%esi).ucode_hdr.processor
- jne L0
- testl 0x1c(%esi) , %edx #(%esi).ucode_hdr.flags
- jnz load_check # Jif signature and platform ID match
+ #
+ cmpl UcodeHdrProcessor(%esi), %ebx #cmp ebx,
[esi].ucode_hdr.processor
+ jne LoadUcodeL0
+ testl UcodeHdrFlags(%esi), %edx #test edx, [esi].ucode_hdr.flags
+ jnz LoadCheck #Jif signature and platform ID
match
-L0:
+LoadUcodeL0:
+ #
# Check if extended header exists
# First check if total_size and data_size are valid
- xorl %eax, %eax
- cmpl %eax,0x24(%esi) #(%esi).ucode_hdr.total_size
- je next_microcode
- cmpl %eax,0x20(%esi) #(%esi) .ucode_hdr.data_size
- je next_microcode
+ #
+ xorl %eax, %eax
+ cmpl %eax, UcodeHdrTotalSize(%esi) #cmp
[esi].ucode_hdr.total_size, eax
+ je NextMicrocode
+ cmpl %eax, UcodeHdrDataSize(%esi) #cmp [esi].ucode_hdr.data_size,
eax
+ je NextMicrocode
+ #
# Then verify total size - sizeof header > data size
- movl 0x24(%esi), %ecx #(%esi).ucode_hdr.total_size
- subl $0x30, %ecx #sizeof ucode_hdr = 48
- cmpl 0x20(%esi), %ecx #(%esi).ucode_hdr.data_size
- jz load_check
- jb next_microcode # Jif extended header does not exist
+ #
+ movl UcodeHdrTotalSize(%esi), %ecx #mov ecx,
[esi].ucode_hdr.total_size
+ subl $UcodeHdrLength, %ecx #sub ecx, sizeof ucode_hdr
+ cmpl UcodeHdrDataSize(%esi), %ecx #cmp ecx,
[esi].ucode_hdr.data_size
+ jle NextMicrocode
- # Check if total size fits in microcode region
- movl %esi , %edi
- addl 0x24(%esi), %edi # (%esi).ucode_hdr.total_size
- movl (%esp), %ecx # (%esp).LOAD_UCODE_PARAMS.ucode_code_addr
- addl 4(%esp), %ecx #.LOAD_UCODE_PARAMS.ucode_code_size
- cmpl %ecx , %edi
- xorl %eax, %eax
- ja exit4 # Jif address is outside of ucode region
-
+ #
# Set edi -> extended header
- movl %esi , %edi
- addl $0x30 , %edi #sizeof ucode_hdr = 48
- addl 0x20(%esi), %edi #%esi.ucode_hdr.data_size
+ #
+ movl %esi, %edi
+ addl $UcodeHdrLength, %edi #add edi, sizeof ucode_hdr
+ addl UcodeHdrDataSize(%esi), %edi #add edi,
[esi].ucode_hdr.data_size
+ #
# Get count of extended structures
- movl (%edi), %ecx #(%edi).ext_sig_hdr.count
+ #
+ movl ExtSigHdrCount(%edi), %ecx #mov ecx,
[edi].ext_sig_hdr.count
+ #
# Move pointer to first signature structure
- addl $0x20, %edi # sizeof ext_sig_hdr = 20
+ #
+ addl ExtSigHdrLength, %edi #add edi, sizeof ext_sig_hdr
-check_ext_sig:
+CheckExtSig:
+ #
# Check if extended signature and platform ID match
- cmpl %ebx, (%edi) #[edi].ext_sig.processor
- jne L1
- test %edx, 4(%edi) #[edi].ext_sig.flags
- jnz load_check # Jif signature and platform ID match
-L9:
+ #
+ cmpl %ebx, ExtSigProcessor(%edi) #cmp [edi].ext_sig.processor,
ebx
+ jne LoadUcodeL1
+ test %edx, ExtSigFlags(%edi) #test [edi].ext_sig.flags, edx
+ jnz LoadCheck # Jif signature and platform ID
match
+LoadUcodeL1:
+ #
# Check if any more extended signatures exist
- addl $0xc, %edi #sizeof ext_sig = 12
- loop check_ext_sig
+ #
+ addl $ExtSigLength, %edi #add edi, sizeof ext_sig
+ loop CheckExtSig
-next_microcode:
+NextMicrocode:
+ #
# Advance just after end of this microcode
+ #
xorl %eax, %eax
- cmpl %eax, 0x24(%esi) #(%esi).ucode_hdr.total_size
- je L2
- add 0x24(%esi) , %esi #(%esi).ucode_hdr.total_size
- jmp check_address
-L10:
- addl $0x800, %esi
- jmp check_address
+ cmpl %eax, UcodeHdrTotalSize(%esi) #cmp
[esi].ucode_hdr.total_size, eax
+ je LoadUcodeL2
+ addl UcodeHdrTotalSize(%esi), %esi #add esi,
[esi].ucode_hdr.total_size
+ jmp CheckAddress
+LoadUcodeL2:
+ addl $0x800, %esi #add esi, dword ptr 2048
+ jmp CheckAddress
-advance_fixed_size:
+AdvanceFixedSize:
+ #
# Advance by 4X dwords
- addl $0x400, %esi
+ #
+ addl $0x400, %esi #add esi, dword ptr 1024
-check_address:
+CheckAddress:
+ #
# Is valid Microcode start point ?
- cmp $0x0ffffffff , %esi
- jz done
+ #
+ cmpl $0x0ffffffff, UcodeHdrVersion(%esi)
+ #
+ # Is automatic size detection ?
+ #
+ movl LoadUcodeParamsUcodeCodeSize(%esp), %eax
+ cmpl $0x0ffffffff, %eax
+ jz LoadUcodeL3
+ #
# Address >= microcode region address + microcode region size?
- movl (%esp), %eax
#(%esp).LOAD_UCODE_PARAMS.ucode_code_addr
- addl 4(%esp), %eax
#(%esp).LOAD_UCODE_PARAMS.ucode_code_size
+ #
+ addl LoadUcodeParamsUcodeCodeAddr(%esp), %eax #mov
eax, [esp].LOAD_UCODE_PARAMS.ucode_code_addr
+
cmpl %eax, %esi
- jae done #Jif address is outside of ucode region
- jmp check_main_header
+ jae Done #Jif address is outside of ucode
region
+ jmp CheckMainHeader
-load_check:
+LoadUcodeL3:
+LoadCheck:
+ #
# Get the revision of the current microcode update loaded
- movl MSR_IA32_BIOS_SIGN_ID, %ecx
- xorl %eax, %eax # Clear EAX
- xorl %edx, %edx # Clear EDX
- wrmsr # Load 0 to MSR at 8Bh
+ #
+ movl $MSR_IA32_BIOS_SIGN_ID, %ecx
+ xorl %eax, %eax # Clear EAX
+ xorl %edx, %edx # Clear EDX
+ wrmsr # Load 0 to MSR at 8Bh
- movl $1, %eax
+ movl $0x01, %eax
cpuid
- movl MSR_IA32_BIOS_SIGN_ID, %ecx
- rdmsr # Get current microcode signature
+ movl $MSR_IA32_BIOS_SIGN_ID, %ecx
+ rdmsr # Get current microcode signature
+ #
# Verify this microcode update is not already loaded
- cmpl %edx, 4(%esi) #(%esi).ucode_hdr.revision
- je continue
+ #
+ cmpl %edx, UcodeHdrRevision(%esi) #cmp [esi].ucode_hdr.revision,
edx
+ je Continue
-load_microcode:
+LoadMicrocode:
+ #
# EAX contains the linear address of the start of the Update Data
# EDX contains zero
# ECX contains 79h (IA32_BIOS_UPDT_TRIG)
# Start microcode load with wrmsr
- mov %esi, %eax
- add $0x30, %eax #sizeof ucode_hdr = 48
- xorl %edx, %edx
- mov MSR_IA32_BIOS_UPDT_TRIG,%ecx
+ #
+ movl %esi, %eax
+ addl $UcodeHdrLength, %eax #add eax, sizeof ucode_hdr
+ xorl %edx, %edx
+ movl $MSR_IA32_BIOS_UPDT_TRIG, %ecx
wrmsr
- mov $1, %eax
+ movl $0x01, %eax
cpuid
-continue:
- jmp next_microcode
+Continue:
+ jmp NextMicrocode
-done:
- mov $1, %eax
+Done:
+ movl $0x01, %eax
cpuid
- mov MSR_IA32_BIOS_SIGN_ID, %ecx
- rdmsr # Get current microcode signature
+ movl $MSR_IA32_BIOS_SIGN_ID, %ecx
+ rdmsr # Get current microcode signature
xorl %eax, %eax
- cmp $0 , %edx
- jnz exit4
- mov $0x08000000E, %eax
+ cmpl $0x00, %edx
+ jnz LoadUcodeExit
+ movl $0x08000000E, %eax
-exit4:
+LoadUcodeExit:
jmp *%ebp
-#LoadUcode ENDP
#----------------------------------------------------------------------------
# TempRamInit API
@@ -344,102 +472,103 @@
# Save timestamp into XMM4 & XMM5
#
rdtsc
- movd %edx, %xmm4
- movd %eax, %xmm5
+ SAVE_EAX
+ SAVE_EDX
#
+ # Check Parameter
+ #
+ movl 4(%esp), %eax
+ cmpl $0x00, %eax
+ movl $0x80000002, %eax
+ jz NemInitExit
+
+ #
# CPUID/DeviceID check
#
- movl L11, %eax
- jmp ASM_PFX(FspSelfCheck) # Note: ESP can not be changed.
-L11:
- cmpl $0, %eax
- jnz NemInitExit
+ movl $TempRamInitApiL0, %eax
+ jmp ASM_PFX(FspSelfCheckDflt) # Note: ESP can not be changed.
+TempRamInitApiL0:
+ cmpl $0x00, %eax
+ jnz NemInitExit
#
# Platform Basic Init.
#
- movl L1, %eax
- jmp ASM_PFX(PlatformBasicInitDflt)
-L1:
- cmp $0, %eax
- jnz NemInitExit
+ movl $TempRamInitApiL1, %eax
+ jmp ASM_PFX(PlatformBasicInitDflt)
+TempRamInitApiL1:
+ cmpl $0x00, %eax
+ jnz NemInitExit
#
# Load microcode
#
- movl L2, %eax
- addl $4, %esp
- jmp LoadUcode
-L2:
+ movl $TempRamInitApiL2, %eax
+ addl $0x04, %esp
+ jmp LoadUcode
+
+TempRamInitApiL2:
LOAD_ESP
- cmpl $0, %eax
- jnz NemInitExit
+ cmpl $0x00, %eax
+ jnz NemInitExit
#
# Call platform NEM init
-
#-------------------------------------------------------------------------------------------------------------------------
- movl L3, %eax
- addl $4, %esp
- jmp ASM_PFX(PlatformTempRamInit)
-L3:
- subl $4, %esp
- cmpl $0, %eax
- jnz NemInitExit
+ #
+ movl $TempRamInitApiL3, %eax
+ addl $0x04, %esp
+ jmp ASM_PFX(PlatformTempRamInit)
+TempRamInitApiL3:
+ subl $0x04, %esp
+ cmpl $0x00, %eax
+ jnz NemInitExit
#
# Save parameter pointer in edx
#
- movl 4(%esp), %edx
+ movl 4(%esp), %edx
#
# Enable FSP STACK
#
- movl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamBase), %esp
- addl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamSize), %esp
+ movl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamBase), %esp
+ addl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamSize), %esp
- pushl $DATA_LEN_OF_MCUD # Size of the data region
- pushl 0x4455434D # Signature of the data region 'MCUD'
- pushl 12(%edx) # Code size
- pushl 8(%edx) # Code base
- cmpl $0, %edx # Is parameter pointer valid ?
- jz InvalidMicrocodeRegion
- pushl 4(%edx) # Microcode size
- pushl (%edx) # Microcode base
- jmp L4
+ pushl $DATA_LEN_OF_MCUD # Size of the data region
+ pushl $0x4455434D # Signature of the data region 'MCUD'
+ pushl 4(%edx) # Microcode size
+ pushl (%edx) # Microcode base
+ pushl 12(%edx) # Code size
+ pushl 8(%edx) # Code base
-InvalidMicrocodeRegion:
- pushl $0 # Microcode size
- pushl $0 # Microcode base
-
-L4:
#
# Save API entry/exit timestamp into stack
#
- pushl DATA_LEN_OF_PER0 # Size of the data region
- pushl 0x30524550 # Signature of the data region 'PER0'
- movd %xmm4, %eax
- pushl %eax
- movd %xmm5, %eax
- pushl %eax
+ pushl $DATA_LEN_OF_PER0 # Size of the data region
+ pushl $0x30524550 # Signature of the data region 'PER0'
rdtsc
- pushl %edx
- pushl %eax
+ pushl %edx
+ pushl %eax
+ LOAD_EAX
+ LOAD_EDX
+ pushl %edx
+ pushl %eax
#
# Terminator for the data on stack
#
- pushl $0
+ pushl $0x00
#
# Set ECX/EDX to the bootloader temporary memory range
#
- movl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamBase), %ecx
- movl %ecx, %edx
- addl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamSize), %edx
- subl ASM_PFX(_gPcd_FixedAtBuild_PcdFspTemporaryRamSize), %edx
+ movl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamBase), %ecx
+ movl %ecx, %edx
+ addl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamSize), %edx
+ subl ASM_PFX(_gPcd_FixedAtBuild_PcdFspTemporaryRamSize), %edx
- xorl %eax, %eax
+ xorl %eax, %eax
NemInitExit:
#
@@ -447,8 +576,8 @@
#
LOAD_REGS
ret
-#TempRamInitApi ENDP
+
#----------------------------------------------------------------------------
# FspInit API
#
@@ -463,60 +592,53 @@
# Stack must be ready
#
pushl $0x087654321
- pop %eax
+ popl %eax
cmpl $0x087654321, %eax
- jz L5
+ jz FspInitApiL0
movl $0x080000003, %eax
- jmp exit3
+ jmp FspInitApiexit
-L5:
+FspInitApiL0:
#
# Additional check
#
pusha
- pushl $1
+ pushl $0x01
call ASM_PFX(FspApiCallingCheck)
- addl $4, %esp
- movl %eax, 28(%esp)
+ addl $0x04, %esp
+ movl %eax, 28(%esp)
popa
- cmpl $0 , %eax
- jz L6
- jmp exit3
+ cmpl $0x00, %eax
+ jz FspInitApiL1
+ jmp FspInitApiexit
-L6:
+FspInitApiL1:
#
- # Save the Platform Data Pointer in EDI
- #
- movl 4(%esp), %edi
-
- #
# Store the address in FSP which will return control to the BL
#
- pushl $exit3
+ pushl $FspInitApiexit
#
# Create a Task Frame in the stack for the Boot Loader
#
- pushfl
pushfl # 2 pushf for 4 byte alignment
cli
pushal
+ #
# Reserve 8 bytes for IDT save/restore
- pushl $0
- pushl $0
- sidt (%esp)
+ #
+ subl $0x08, %esp
+ sidt (%esp)
#
# Setup new FSP stack
#
- movl %esp, %eax
- movl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamBase), %esp
- addl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamSize) , %esp
- subl DATA_LEN_AT_STACK_TOP, %esp
- addl $0x0FFFFFFC0, %esp
+ movl %esp, %eax
+ movl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamBase), %esp
+ addl ASM_PFX(_gPcd_FixedAtBuild_PcdTemporaryRamSize), %esp
+ subl $(DATA_LEN_AT_STACK_TOP + 0x40), %esp
- #
# Save the bootloader's stack pointer
#
pushl %eax
@@ -525,10 +647,11 @@
# Pass entry point of the PEI core
#
call ASM_PFX(GetFspBaseAddress)
- movl %eax, %edi
- addl ASM_PFX(_gPcd_FixedAtBuild_PcdFspAreaSize), %edi
+ movl ASM_PFX(FspImageSizeOffset), %edi
+ movl (%eax, %edi), %edi
+ addl %eax, %edi
subl $0x20, %edi
- addl %ds:(%edi), %eax
+ addl (%edi), %eax
pushl %eax
#
@@ -558,10 +681,9 @@
#
call ASM_PFX(SecStartup)
-exit3:
+FspInitApiexit:
ret
-# FspInitApi ENDP
#----------------------------------------------------------------------------
# NotifyPhase API
@@ -576,36 +698,35 @@
# Stack must be ready
#
pushl $0x0087654321
- pop %eax
+ popl %eax
cmpl $0x087654321, %eax
- jz L7
+ jz NotifyPhaseApiL0
movl $0x080000003, %eax
- jmp err_exit
+ jmp NotifyPhaseApiErrExit
-L7:
+NotifyPhaseApiL0:
#
# Verify the calling condition
#
pusha
- pushl $2
- call ASM_PFX(FspApiCallingCheck)
- add $4, %esp
- mov %eax, 28(%esp)
+ pushl $0x02
+ call ASM_PFX(FspApiCallingCheck)
+ addl $0x04, %esp
+ movl %eax, 28(%esp)
popa
- cmpl $0, %eax
- jz L8
+ cmpl $0x00, %eax
+ jz NotifyPhaseApiL1
#
# Error return
#
-err_exit:
+NotifyPhaseApiErrExit:
ret
-L8:
+NotifyPhaseApiL1:
jmp ASM_PFX(Pei2LoaderSwitchStack)
-#NotifyPhaseApi ENDP
#END
------------------------------------------------------------------------------
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