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Finished basic task switching mechansim

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PCB is local to a process's address space.
Context switches are written in assembly.
Moved x86 headers to include/x86
This commit is contained in:
ngiddings
2021-04-19 03:40:33 -05:00
parent 086dfe546a
commit 5efc389935
22 changed files with 246 additions and 162 deletions
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24
src/x86/quark_x86.c
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@@ -3,22 +3,18 @@
#include "allocator.h"
#include "mmgr.h"
#include "priorityqueue.h"
#include "multiboot2.h"
#include "x86/multiboot2.h"
#include "memorymap.h"
#include "apic.h"
#include "interrupts.h"
#include "x86/apic.h"
#include "x86/interrupts.h"
#include "stdio.h"
#include "string.h"
#include "module.h"
#include "system.h"
#include "config.h"
#include <stdint.h>
#include <stddef.h>
extern int _kernel_pstart;
extern int _kernel_pend;
extern int _kernel_start;
extern int _kernel_end;
struct kernel_t kernel_state;
int initialize(void *multiboot_info)
@@ -51,11 +47,11 @@ int initialize(void *multiboot_info)
}
initialize_screen();
printf("***%s***\n", PACKAGE_STRING);
printf("Type\t\tLocation\t\tSize\n");
/*printf("Type\t\tLocation\t\tSize\n");
for (size_t i = 0; i < boot_info.map.size && boot_info.map.array[i].size > 0; i++)
{
printf("%i\t\t\t%08x\t\t%u\n", boot_info.map.array[i].type, boot_info.map.array[i].location, boot_info.map.array[i].size);
}
}*/
page_stack.base_pointer = (physaddr_t*)0xFFC00000;
page_stack.stack_pointer = (physaddr_t*)0xFFC00000;
page_stack.limit_pointer = (physaddr_t*)0xFFC00000;
@@ -73,13 +69,13 @@ int initialize(void *multiboot_info)
load_module(&kernel_state, &boot_info.modules[i]);
}
apic_enable(page_stack);
apic_registers->divide_config.value = APIC_DIVIDE_16;
apic_registers->lvt_timer.vector = ISR_PREEMPT;
/*apic_registers->divide_config.value = APIC_DIVIDE_1;
apic_registers->lvt_timer.timer_mode = APIC_TIMER_PERIODIC;
apic_registers->lvt_timer.vector = ISR_PREEMPT;
apic_registers->lvt_timer.mask = 0;
apic_registers->initial_count.value = 1024*1024*128;
apic_registers->initial_count.value = 1024*1024;*/
asm("sti");
next_process(&kernel_state, NULL);
load_context(next_process(&kernel_state, NULL));
while(1) asm("hlt");
}