Bananymous/banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kernel: Fix multiprocessing on x86_64

Browse Source 
I did not even start APs after initializing them... :D
This commit is contained in:
Bananymous
2024-04-03 14:21:55 +03:00
parent 731330c6b5
commit f8c01418b1
8 changed files with 88 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
kernel/arch/x86_64/Syscall.S
View File

@@ -1,3 +1,49 @@
// arguments in RAX, RBX, RCX, RDX, RSI, RDI
// System V ABI: RDI, RSI, RDX, RCX, R8, R9
.global asm_syscall_handler
asm_syscall_handler:
pushq %rbx
pushq %rcx
pushq %rdx
pushq %rdi
pushq %rsi
pushq %rbp
pushq %r8
pushq %r9
pushq %r10
pushq %r11
pushq %r12
pushq %r13
pushq %r14
pushq %r15
movq %rsi, %r8
movq %rdi, %r9
movq %rax, %rdi
movq %rbx, %rsi
xchgq %rcx, %rdx
leaq 112(%rsp), %rbx
pushq %rbx
call cpp_syscall_handler
addq $8, %rsp
popq %r15
popq %r14
popq %r13
popq %r12
popq %r11
popq %r10
popq %r9
popq %r8
popq %rbp
popq %rsi
popq %rdi
popq %rdx
popq %rcx
popq %rbx
iretq
.global sys_fork_trampoline
sys_fork_trampoline:
pushq %rbx

55
kernel/arch/x86_64/interrupts.S
View File

@@ -34,23 +34,6 @@
popq %rax
.endm
.macro popaq_no_rax
popq %r15
popq %r14
popq %r13
popq %r12
popq %r11
popq %r10
popq %r9
popq %r8
popq %rdi
popq %rsi
popq %rbp
popq %rbx
popq %rdx
popq %rcx
.endm
isr_stub:
pushaq
@@ -78,6 +61,15 @@ irq_stub:
addq $16, %rsp
iretq
.global asm_yield_handler
asm_yield_handler:
pushaq
leaq 120(%rsp), %rdi # interrupt stack ptr
movq %rsp, %rsi # interrupt register ptr
call cpp_yield_handler
popaq
iretq
.macro isr n
.global isr\n
isr\n:
@@ -166,31 +158,4 @@ irq 28
irq 29
irq 30
irq 31
.global asm_reschedule_handler
asm_reschedule_handler:
pushaq
leaq 120(%rsp), %rdi # interrupt stack ptr
movq %rsp, %rsi # interrupt register ptr
call cpp_reschedule_handler
popaq
iretq
// arguments in RAX, RBX, RCX, RDX, RSI, RDI
// System V ABI: RDI, RSI, RDX, RCX, R8, R9
.global syscall_asm
syscall_asm:
pushaq
movq %rsi, %r8
movq %rdi, %r9
movq %rax, %rdi
movq %rbx, %rsi
xchgq %rcx, %rdx
movq %rsp, %rbx
addq $120, %rbx
pushq %rbx
call cpp_syscall_handler
addq $8, %rsp
popaq_no_rax
addq $8, %rsp
iretq
irq 32