initial commit. working on tasking

1 files changed, 35 insertions, 0 deletions

diff --git a/arch/x86_64/hal/process.c b/arch/x86_64/hal/process.c
new file mode 100644
index 0000000..dd49456
--- /dev/null
+++ b/arch/x86_64/hal/process.c
@@ -0,0 +1,35 @@
+#include "process.h"
+#include "arch/x86_64/hal/obj.h"
+#include "hal/obj.h"
+#include "init.h"
+#include "smp.h"
+#include "paging.h"
+#include "jove.h"
+
+PAGEALIGN char s_init_pcb_bytes[0x1000] = { 0 };
+static pcb_t *s_init_pcb = (pcb_t*)&s_init_pcb_bytes;
+
+void
+processing_setup(void (*process_main))
+{
+    uintptr_t ksp = (uintptr_t)&s_init_pcb_bytes + 8;
+    s_init_pcb->ksp = (void*)ksp;
+    s_init_pcb->pml4 = paging_get_pml4();
+
+    processor_t *proc = processor_current();
+    proc->pcb = s_init_pcb;
+    proc->tss.rsp[0] = (uintptr_t)s_init_pcb->ksp;
+
+    {
+        jove_owned_obj_t *process_obj = obj_take(objdir_getlocal(_rootdir_obj, ROOTDIR_PCB_I));
+        obj_settype(process_obj, JOVE_OBJ_PROCESS);
+        obj_setvalue(process_obj, (uintptr_t)s_init_pcb);
+        obj_release(process_obj);
+    }
+
+    __asm__ volatile("\
+            movq %0, %%rsp; \
+            movq $0, %%rbp; \
+            jmpq %1"::
+            "r"(s_init_pcb->ksp), "r"(process_main));
+}