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[MULTITASKING] Preemptive multitasking

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This commit is contained in:
Thomas Lovén
2016-11-18 10:36:21 +01:00
parent d3d065b2e2
commit 664379b35c
7 changed files with 26 additions and 8 deletions
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10
kernel/proc/thread.c
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@@ -4,6 +4,7 @@
#include <mem.h>
#include <list.h>
#include <debug.h>
#include <registers.h>
thread_t *current_thread = 0;
@@ -16,9 +17,16 @@ thread_t *new_thread(void (*func)(void))
thread_stack_t *stack = kcalloc(1, sizeof(thread_stack_t));
thread_t *th = &stack->tcb;
stack->function_address = (uint64_t)func;
stack->thread = (uint64_t)th;
stack->function_address = (uint64_t)isr_return;
stack->RBP = (uint64_t)&stack->zero_frame;
th->r.rip = (uint64_t)func;
th->r.rflags = RFLAGS_IF;
th->r.cs = 0x8;
th->r.ss = 0x10;
th->r.rsp = (uint64_t)&th->stack_pointer;
th->tid = tid++;
th->state = THREAD_STATE_READY;
th->stack_pointer = (uint64_t)&stack->RBP;