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#include "process.h"
#include "proc/process.h"
#include "arch/x86_64/hal/obj.h"
#include "arch/x86_64/hal/smp.h"
#include "arch/x86_64/hal/paging.h"
#include "hal/obj.h"
#include "hal/smp.h"
#include "lib/string.h"
#include "init.h"
#include "jove.h"
PAGEALIGN uint8_t s_init_iopb[0x2000];
PAGEALIGN char _init_pcb_bytes[0x1000] = { 0 };
pcb_t *_init_pcb = (pcb_t*)&_init_pcb_bytes;
pid_t
pcb_pid(pcb_t *pcb)
{
return pcb->pid;
}
jove_obj_t*
pcb_rootdir(pcb_t *pcb)
{
return pcb->rootdir;
}
void
processing_setup(void (*process_main))
{
memset(s_init_iopb, 0xFF, 0x2000);
uintptr_t ksp = ((uintptr_t)&_init_pcb_bytes) + 0xFF8;
_init_pcb->tree_node.get_key = (void*)pcb_pid;
_init_pcb->tree_node.color = 1;
_init_pcb->pid = 1;
_init_pcb->ksp = (void*)ksp;
_init_pcb->pml4 = paging_get_pml4();
_init_pcb->rootdir = _rootdir_obj;
jove_owned_obj_t *iopb_obj = objdir_getlocal(_rootdir_obj, ROOTDIR_IOPB_I);
obj_settype(iopb_obj, JOVE_OBJ_IOPB);
obj_setvalue(iopb_obj, (uintptr_t)s_init_iopb);
_init_pcb->iopb = iopb_obj;
processor_t *proc = processor_current();
proc->tss.rsp[0] = (uintptr_t)_init_pcb->ksp;
memcpy(proc->iopb, s_init_iopb, 0x2000);
{
jove_owned_obj_t *process_obj = objdir_getlocal(_rootdir_obj, ROOTDIR_PCB_I);
obj_settype(process_obj, JOVE_OBJ_PCB);
obj_setvalue(process_obj, (uintptr_t)_init_pcb);
proc->pcb_obj = process_obj;
proc->pcb = _init_pcb;
}
__asm__ volatile("\
movq %0, %%rsp; \
xorq %%rbp, %%rbp; \
jmpq %1"::
"r"(_init_pcb->ksp), "r"(process_main));
}
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