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acadia/zion/interrupt/interrupt_enter.s

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Add an interrupt descriptor table. Set up a very basic handler for divide by zero and general protection faults.
2023-05-17 22:54:37 -07:00
.macro interrupt_enter
push %rbp
push %r15
push %r14
push %r13
push %r12
push %r11
push %r10
push %r9
push %r8
push %rdi
push %rsi
push %rdx
push %rcx # (Return Address)
push %rbx
push %rax
Fix race condition in page fault handler. We enabled interrupts before getting the value of cr2 in the handler. If the handler was preempted, cr2 could have been overriden by a page fault in a separate thread or process.
2023-06-07 22:24:50 -07:00
mov %cr2, %rax
push %rax
Add an interrupt descriptor table. Set up a very basic handler for divide by zero and general protection faults.
2023-05-17 22:54:37 -07:00
.endm
.macro interrupt_exit
Fix race condition in page fault handler. We enabled interrupts before getting the value of cr2 in the handler. If the handler was preempted, cr2 could have been overriden by a page fault in a separate thread or process.
2023-06-07 22:24:50 -07:00
add $8, %rsp
Add an interrupt descriptor table. Set up a very basic handler for divide by zero and general protection faults.
2023-05-17 22:54:37 -07:00
pop %rax
pop %rbx
pop %rcx
pop %rdx
pop %rsi
pop %rdi
pop %r8
pop %r9
pop %r10
Fix race condition in page fault handler. We enabled interrupts before getting the value of cr2 in the handler. If the handler was preempted, cr2 could have been overriden by a page fault in a separate thread or process.
2023-06-07 22:24:50 -07:00
pop %r11
pop %r12
pop %r13
pop %r14
pop %r15
Add an interrupt descriptor table. Set up a very basic handler for divide by zero and general protection faults.
2023-05-17 22:54:37 -07:00
pop %rbp
add $8, %rsp # Remove error code.
.endm
.macro isr_handler name error_code=0
.global isr_\name
isr_\name:
.if \error_code
.else
push $0 # if we don't have an error code, equalize the stack.
.endif
interrupt_enter
sti
mov %rsp, %rdi
call interrupt_\name
cli
interrupt_exit
iretq
.endm
isr_handler divide_by_zero
[Zion] Add an invalid opcode handler.
2023-11-22 12:06:37 -08:00
isr_handler invalid_opcode
Add an interrupt descriptor table. Set up a very basic handler for divide by zero and general protection faults.
2023-05-17 22:54:37 -07:00
isr_handler protection_fault,1
Add a page fault handler
2023-05-18 10:43:45 -07:00
isr_handler page_fault,1
[Zion] Add a shim Floating Point Exception handler.
2023-11-21 15:17:32 -08:00
isr_handler fpe_fault
Enable the PIC and add a timer. This causes a GP fault after the timer runs for some time.
2023-05-29 21:52:01 -07:00
isr_handler timer
[zion] Move to using the LAPIC timer over the PIT.
2023-08-01 20:18:47 -07:00
isr_handler apic_timer
[Zion] Add a keyboard interrupt handler and a driver manager.
2023-11-25 11:13:25 -08:00
isr_handler keyboard
Don't mistakenly mask interrupts in user space
2023-06-12 19:01:09 -07:00
isr_handler pci1
isr_handler pci2
isr_handler pci3
isr_handler pci4