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-rw-r--r--DuetPkg/CpuDxe/X64/CpuInterrupt.S1096
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diff --git a/DuetPkg/CpuDxe/X64/CpuInterrupt.S b/DuetPkg/CpuDxe/X64/CpuInterrupt.S
deleted file mode 100644
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--- a/DuetPkg/CpuDxe/X64/CpuInterrupt.S
+++ /dev/null
@@ -1,1096 +0,0 @@
-#------------------------------------------------------------------------------
-#*
-#* Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
-#* This program and the accompanying materials
-#* are licensed and made available under the terms and conditions of the BSD License
-#* which accompanies this distribution. The full text of the license may be found at
-#* http://opensource.org/licenses/bsd-license.php
-#*
-#* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-#* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#*
-#* CpuInterrupt.S
-#*
-#* Abstract:
-#*
-#------------------------------------------------------------------------------
-
-#PUBLIC SystemTimerHandler
-#PUBLIC SystemExceptionHandler
-#EXTERNDEF mExceptionCodeSize:DWORD
-
-#EXTERN TimerHandler: NEAR
-#EXTERN ExceptionHandler: NEAR
-#EXTERN mTimerVector: DWORD
-
- .data
- ASM_GLOBAL ASM_PFX(mExceptionCodeSize)
-ASM_PFX(mExceptionCodeSize): .long 9
-
- .text
- ASM_GLOBAL ASM_PFX(InitDescriptor)
-
-ASM_PFX(InitDescriptor):
- movq $GDT_BASE,%rax # EAX=PHYSICAL address of gdt
- movq %rax, gdtr + 2 # Put address of gdt into the gdtr
- lgdt gdtr
- movq $0x18, %rax
- movq %rax, %gs
- movq %rax, %fs
- movq $IDT_BASE,%rax # EAX=PHYSICAL address of idt
- movq %rax, idtr + 2 # Put address of idt into the idtr
- lidt idtr
- ret
-
-# VOID
-# InstallInterruptHandler (
-# UINTN Vector,
-# VOID (*Handler)(VOID)
-# )
- ASM_GLOBAL ASM_PFX(InstallInterruptHandler)
-ASM_PFX(InstallInterruptHandler):
-# Vector:DWORD @ 4(%esp)
-# Handler:DWORD @ 8(%esp)
- push %rbx
- pushfq # save eflags
- cli # turn off interrupts
- subq $0x10, %rsp # open some space on the stack
- movq %rsp, %rbx
-
- sidt (%rbx) # get fword address of IDT
- movq 2(%rbx), %rbx # move offset of IDT into RBX
- addq $0x10, %rsp # correct stack
- movq %rcx, %rax # Get vector number
- shlq $4, %rax # multiply by 16 to get offset
- addq %rax, %rbx # add to IDT base to get entry
- movq %rdx, %rax # load new address into IDT entry
- movw %ax, (%rbx) # write bits 15..0 of offset
- shrq $16, %rax # use ax to copy 31..16 to descriptors
- movw %ax, 6(%rbx) # write bits 31..16 of offset
- shrq $16, %rax # use eax to copy 63..32 to descriptors
- movl %eax, 8(%rbx) # write bits 63..32 of offset
- popfq # restore flags (possible enabling interrupts)
- pop %rbx
- ret
-
- .macro JmpCommonIdtEntry
- # jmp commonIdtEntry - this must be hand coded to keep the assembler from
- # using a 8 bit reletive jump when the entries are
- # within 255 bytes of the common entry. This must
- # be done to maintain the consistency of the size
- # of entry points...
- .byte 0xe9 # jmp 16 bit reletive
- .long commonIdtEntry - . - 4 # offset to jump to
- .endm
-
- .p2align 1
- ASM_GLOBAL ASM_PFX(SystemExceptionHandler)
-ASM_PFX(SystemExceptionHandler):
-INT0:
- push $0x0 # push error code place holder on the stack
- push $0x0
- JmpCommonIdtEntry
-# db 0e9h # jmp 16 bit reletive
-# dd commonIdtEntry - $ - 4 # offset to jump to
-
-INT1:
- push $0x0 # push error code place holder on the stack
- push $0x1
- JmpCommonIdtEntry
-
-INT2:
- push $0x0 # push error code place holder on the stack
- push $0x2
- JmpCommonIdtEntry
-
-INT3:
- push $0x0 # push error code place holder on the stack
- push $0x3
- JmpCommonIdtEntry
-
-INT4:
- push $0x0 # push error code place holder on the stack
- push $0x4
- JmpCommonIdtEntry
-
-INT5:
- push $0x0 # push error code place holder on the stack
- push $0x5
- JmpCommonIdtEntry
-
-INT6:
- push $0x0 # push error code place holder on the stack
- push $0x6
- JmpCommonIdtEntry
-
-INT7:
- push $0x0 # push error code place holder on the stack
- push $0x7
- JmpCommonIdtEntry
-
-INT8:
-# Double fault causes an error code to be pushed so no phony push necessary
- nop
- nop
- push $0x8
- JmpCommonIdtEntry
-
-INT9:
- push $0x0 # push error code place holder on the stack
- push $0x9
- JmpCommonIdtEntry
-
-INT10:
-# Invalid TSS causes an error code to be pushed so no phony push necessary
- nop
- nop
- push $10
- JmpCommonIdtEntry
-
-INT11:
-# Segment Not Present causes an error code to be pushed so no phony push necessary
- nop
- nop
- push $11
- JmpCommonIdtEntry
-
-INT12:
-# Stack fault causes an error code to be pushed so no phony push necessary
- nop
- nop
- push $12
- JmpCommonIdtEntry
-
-INT13:
-# GP fault causes an error code to be pushed so no phony push necessary
- nop
- nop
- push $13
- JmpCommonIdtEntry
-
-INT14:
-# Page fault causes an error code to be pushed so no phony push necessary
- nop
- nop
- push $14
- JmpCommonIdtEntry
-
-INT15:
- push $0x0 # push error code place holder on the stack
- push $15
- JmpCommonIdtEntry
-
-INT16:
- push $0x0 # push error code place holder on the stack
- push $16
- JmpCommonIdtEntry
-
-INT17:
-# Alignment check causes an error code to be pushed so no phony push necessary
- nop
- nop
- push $17
- JmpCommonIdtEntry
-
-INT18:
- push $0x0 # push error code place holder on the stack
- push $18
- JmpCommonIdtEntry
-
-INT19:
- push $0x0 # push error code place holder on the stack
- push $19
- JmpCommonIdtEntry
-
-INTUnknown:
- # The following segment repeats (32 - 20) times:
- # macro .rept isn't used here because Apple GAS compiler doesn't support it.
- # No. 1
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 2
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 3
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 4
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 5
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 6
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 7
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 8
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 9
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 10
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 11
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
- # No. 12
- push $0x0 # push error code place holder on the stack
-# push xxh # push vector number
- .byte 0x6a
- .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number
- JmpCommonIdtEntry
-
-
- ASM_GLOBAL ASM_PFX(SystemTimerHandler)
-ASM_PFX(SystemTimerHandler):
- push $0
- push $ASM_PFX(mTimerVector)
- JmpCommonIdtEntry
-
-commonIdtEntry:
-# +---------------------+
-# + EFlags +
-# +---------------------+
-# + CS +
-# +---------------------+
-# + EIP +
-# +---------------------+
-# + Error Code +
-# +---------------------+
-# + Vector Number +
-# +---------------------+
-# + EBP +
-# +---------------------+ <-- EBP
-
- cli
- push %rbp
- movq %rsp,%rbp
-
- #
- # Since here the stack pointer is 16-byte aligned, so
- # EFI_FX_SAVE_STATE_X64 of EFI_SYSTEM_CONTEXT_x64
- # is 16-byte aligned
- #
-
-## UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax#
-## UINT64 R8, R9, R10, R11, R12, R13, R14, R15#
- push %r15
- push %r14
- push %r13
- push %r12
- push %r11
- push %r10
- push %r9
- push %r8
- push %rax
- push %rcx
- push %rdx
- push %rbx
- push 6*8(%rbp)
- push (%rbp)
- push %rsi
- push %rdi
-
-## UINT64 Gs, Fs, Es, Ds, Cs, Ss# insure high 16 bits of each is zero
- movzx 7*8(%rbp), %rax
- push %rax # for ss
- movzx 4*8(%rbp), %rax
- push %rax # for cs
- movq %ds, %rax
- push %rax
- movq %es, %rax
- push %rax
- movq %fs, %rax
- push %rax
- movq %gs, %rax
- push %rax
-
-## UINT64 Rip#
- push 3*8(%rbp)
-
-## UINT64 Gdtr[2], Idtr[2]#
- subq $16, %rsp
- sidt (%rsp)
- subq $16, %rsp
- sgdt (%rsp)
-
-## UINT64 Ldtr, Tr#
- xorq %rax, %rax
- str %ax
- push %rax
- sldt %ax
- push %rax
-
-## UINT64 RFlags#
- push 5*8(%rbp)
-
-## UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8#
- movq %cr8, %rax
- push %rax
- movq %cr4, %rax
- orq $0x208, %rax
- movq %rax, %cr4
- push %rax
- movq %cr3, %rax
- push %rax
- movq %cr2, %rax
- push %rax
- xorq %rax, %rax
- push %rax
- movq %cr0, %rax
- push %rax
-
-## UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7#
- movq %dr7, %rax
- push %rax
-
-## clear Dr7 while executing debugger itself
- xorq %rax, %rax
- movq %rax, %dr7
-
- movq %dr6, %rax
- push %rax
-
-## insure all status bits in dr6 are clear...
- xorq %rax, %rax
- movq %rax, %dr6
-
- movq %dr3, %rax
- push %rax
- movq %dr2, %rax
- push %rax
- movq %dr1, %rax
- push %rax
- movq %dr0, %rax
- push %rax
-
-
-## FX_SAVE_STATE_X64 FxSaveState#
- subq $512, %rsp
- movq %rsp, %rdi
- fxsave (%rdi)
-
-## UINT64 ExceptionData#
- push 2*8 (%rbp)
-
-## call into exception handler
-## Prepare parameter and call
- movq 1*8(%rbp), %rcx
- movq %rsp, %rdx
- #
- # Per X64 calling convention, allocate maximum parameter stack space
- # and make sure RSP is 16-byte aligned
- #
- subq $(4*8+8), %rsp
- cmpq $32, %rcx
- jb CallException
- call ASM_PFX(TimerHandler)
- jmp ExceptionDone
-CallException:
- call ASM_PFX(ExceptionHandler)
-ExceptionDone:
- addq $(4*8+8), %rsp
-
- cli
-## UINT64 ExceptionData#
- addq $8, %rsp
-
-## FX_SAVE_STATE_X64 FxSaveState#
- movq %rsp, %rsi
- fxrstor (%esi)
- addq $512, %rsp
-
-
-## UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7#
- pop %rax
- movq %rax, %dr0
- pop %rax
- movq %rax, %dr1
- pop %rax
- movq %rax, %dr2
- pop %rax
- movq %rax, %dr3
-## skip restore of dr6. We cleared dr6 during the context save.
- addq $8, %rsp
- pop %rax
- movq %rax, %dr7
-
-## UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8#
- pop %rax
- movq %rax, %cr0
- addq $8, %rsp # not for Cr1
- pop %rax
- movq %rax, %cr2
- pop %rax
- movq %rax, %cr3
- pop %rax
- movq %rax, %cr4
- pop %rax
- mov %rax, %cr8
-
-## UINT64 RFlags#
- pop 5*8(%rbp)
-
-## UINT64 Ldtr, Tr#
-## UINT64 Gdtr[2], Idtr[2]#
-## Best not let anyone mess with these particular registers...
- addq $48, %rsp
-
-## UINT64 Rip#
- pop 3*8(%rbp)
-
-## UINT64 Gs, Fs, Es, Ds, Cs, Ss#
- pop %rax
- # mov gs, rax # not for gs
- pop %rax
- # mov fs, rax # not for fs
- # (X64 will not use fs and gs, so we do not restore it)
- pop %rax
- movq %rax, %es
- pop %rax
- movq %rax, %ds
- pop 4*8(%rbp) # for cs
- pop 7*8(%rbp) # for ss
-
-## UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax#
-## UINT64 R8, R9, R10, R11, R12, R13, R14, R15#
- pop %rdi
- pop %rsi
- addq $8, %rsp # not for rbp
- pop 6*8(%rbp) # for rsp
- pop %rbx
- pop %rdx
- pop %rcx
- pop %rax
- pop %r8
- pop %r9
- pop %r10
- pop %r11
- pop %r12
- pop %r13
- pop %r14
- pop %r15
-
- movq %rbp, %rsp
- pop %rbp
- addq $16, %rsp
- iretq
-
-
-##############################################################################
-# data
-##############################################################################
-
- .data
-
-gdtr: .short GDT_END - GDT_BASE - 1 # GDT limit
- .quad 0 # (GDT base gets set above)
-##############################################################################
-# global descriptor table (GDT)
-##############################################################################
-
- .p2align 4 # make GDT 16-byte align
-
-GDT_BASE:
-# null descriptor
-NULL_SEL = .-GDT_BASE # Selector [0x0]
- .short 0 # limit 15:0
- .short 0 # base 15:0
- .byte 0 # base 23:16
- .byte 0 # type
- .byte 0 # limit 19:16, flags
- .byte 0 # base 31:24
-
-# linear data segment descriptor
-LINEAR_SEL = .-GDT_BASE # Selector [0x8]
- .short 0x0FFFF # limit 0xFFFFF
- .short 0 # base 0
- .byte 0
- .byte 0x092 # present, ring 0, data, expand-up, writable
- .byte 0x0CF # page-granular, 32-bit
- .byte 0
-
-# linear code segment descriptor
-LINEAR_CODE_SEL = .-GDT_BASE # Selector [0x10]
- .short 0x0FFFF # limit 0xFFFFF
- .short 0 # base 0
- .byte 0
- .byte 0x09A # present, ring 0, code, expand-up, writable
- .byte 0x0CF # page-granular, 32-bit
- .byte 0
-
-# system data segment descriptor
-SYS_DATA_SEL = .-GDT_BASE # Selector [0x18]
- .short 0x0FFFF # limit 0xFFFFF
- .short 0 # base 0
- .byte 0
- .byte 0x092 # present, ring 0, data, expand-up, writable
- .byte 0x0CF # page-granular, 32-bit
- .byte 0
-
-# system code segment descriptor
-SYS_CODE_SEL = .-GDT_BASE # Selector [0x20]
- .short 0x0FFFF # limit 0xFFFFF
- .short 0 # base 0
- .byte 0
- .byte 0x09A # present, ring 0, code, expand-up, writable
- .byte 0x0CF # page-granular, 32-bit
- .byte 0
-
-# spare segment descriptor
-SPARE3_SEL = .-GDT_BASE # Selector [0x28]
- .short 0
- .short 0
- .byte 0
- .byte 0
- .byte 0
- .byte 0
-
-# system data segment descriptor
-SYS_DATA64_SEL = .-GDT_BASE # Selector [0x30]
- .short 0x0FFFF # limit 0xFFFFF
- .short 0 # base 0
- .byte 0
- .byte 0x092 # present, ring 0, data, expand-up, writable
- .byte 0x0CF # page-granular, 32-bit
- .byte 0
-
-# system code segment descriptor
-SYS_CODE64_SEL = .-GDT_BASE # Selector [0x38]
- .short 0x0FFFF # limit 0xFFFFF
- .short 0 # base 0
- .byte 0
- .byte 0x09A # present, ring 0, code, expand-up, writable
- .byte 0x0AF # page-granular, 64-bit
- .byte 0
-
-# spare segment descriptor
-SPARE4_SEL = .-GDT_BASE # Selector [0x40]
- .short 0
- .short 0
- .byte 0
- .byte 0
- .byte 0
- .byte 0
-
-GDT_END:
-
-idtr: .short IDT_END - IDT_BASE - 1 # IDT limit
- .quad 0 # (IDT base gets set above)
-##############################################################################
-# interrupt descriptor table (IDT)
-#
-# Note: The hardware IRQ's specified in this table are the normal PC/AT IRQ
-# mappings. This implementation only uses the system timer and all other
-# IRQs will remain masked. The descriptors for vectors 33+ are provided
-# for convenience.
-##############################################################################
-
- .p2align 3 # make IDT 8-byte align
-
-IDT_BASE:
-# divide by zero (INT 0)
-DIV_ZERO_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# debug exception (INT 1)
-DEBUG_EXCEPT_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# NMI (INT 2)
-NMI_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# soft breakpoint (INT 3)
-BREAKPOINT_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# overflow (INT 4)
-OVERFLOW_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# bounds check (INT 5)
-BOUNDS_CHECK_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# invalid opcode (INT 6)
-INVALID_OPCODE_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# device not available (INT 7)
-DEV_NOT_AVAIL_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# double fault (INT 8)
-DOUBLE_FAULT_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# Coprocessor segment overrun - reserved (INT 9)
-RSVD_INTR_SEL1 = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# invalid TSS (INT 0ah)
-INVALID_TSS_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# segment not present (INT 0bh)
-SEG_NOT_PRESENT_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# stack fault (INT 0ch)
-STACK_FAULT_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# general protection (INT 0dh)
-GP_FAULT_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# page fault (INT 0eh)
-PAGE_FAULT_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# Intel reserved - do not use (INT 0fh)
-RSVD_INTR_SEL2 = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# floating point error (INT 0x10)
-FLT_POINT_ERR_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# alignment check (INT 0x11)
-ALIGNMENT_CHECK_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# machine check (INT 0x12)
-MACHINE_CHECK_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# SIMD floating-point exception (INT 0x13)
-SIMD_EXCEPTION_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
- # The following segment repeats (32 - 20) times:
- # macro .rept isn't used here because Apple GAS compiler doesn't support it.
- # No. 1
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 2
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 3
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 4
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 5
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 6
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 7
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 8
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 9
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 10
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 11
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
- # No. 12
- .short 0 # offset 15:0
- .short SYS_CODE_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-
-# 72 unspecified descriptors
- .fill 72 * 16, 1, 0
-
-# IRQ 0 (System timer) - (INT 0x68)
-IRQ0_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # 0 for reserved
-
-# IRQ 1 (8042 Keyboard controller) - (INT 0x69)
-IRQ1_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# Reserved - IRQ 2 redirect (IRQ 2) - DO NOT USE!!! - (INT 6ah)
-IRQ2_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 3 (COM 2) - (INT 6bh)
-IRQ3_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 4 (COM 1) - (INT 6ch)
-IRQ4_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 5 (LPT 2) - (INT 6dh)
-IRQ5_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 6 (Floppy controller) - (INT 6eh)
-IRQ6_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 7 (LPT 1) - (INT 6fh)
-IRQ7_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 8 (RTC Alarm) - (INT 0x70)
-IRQ8_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 9 - (INT 0x71)
-IRQ9_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 10 - (INT 0x72)
-IRQ10_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 11 - (INT 0x73)
-IRQ11_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 12 (PS/2 mouse) - (INT 0x74)
-IRQ12_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 13 (Floating point error) - (INT 0x75)
-IRQ13_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 14 (Secondary IDE) - (INT 0x76)
-IRQ14_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
-# IRQ 15 (Primary IDE) - (INT 0x77)
-IRQ15_SEL = .-IDT_BASE
- .short 0 # offset 15:0
- .short SYS_CODE64_SEL # selector 15:0
- .byte 0 # 0 for interrupt gate
- .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present
- .short 0 # offset 31:16
- .long 0 # offset 63:32
- .long 0 # for reserved
-
- .fill 16, 1, 0
-
-IDT_END:
-
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