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vm: replace vm-region with address-space

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address-space is a non-recursive data structure, which contains a flat list of vm_areas representing
mapped vm-objects.

userspace programs can no longer create sub-address-spaces. instead, they can reserve portions of
the address space, and use that reserved space to create mappings.
This commit is contained in:
max 🍓
2026-03-13 19:44:50 +00:00
parent c6b0bee827
commit c628390f4a
28 changed files with 1719 additions and 2612 deletions
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10
syscall/task.c
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@@ -1,10 +1,10 @@
#include <kernel/address-space.h>
#include <kernel/machine/cpu.h>
#include <kernel/printk.h>
#include <kernel/sched.h>
#include <kernel/syscall.h>
#include <kernel/task.h>
#include <kernel/thread.h>
#include <kernel/vm-region.h>
extern kern_status_t sys_task_exit(int status)
{
@@ -128,10 +128,10 @@ kern_status_t sys_task_create(
task_unlock_irqrestore(parent, flags);
child_handle_slot->h_object = &child->t_base;
space_handle_slot->h_object = &child->t_address_space->vr_base;
space_handle_slot->h_object = &child->t_address_space->s_base;
object_add_handle(&child->t_base);
object_add_handle(&child->t_address_space->vr_base);
object_add_handle(&child->t_address_space->s_base);
object_unref(parent_obj);
@@ -252,8 +252,8 @@ kern_status_t sys_task_get_address_space(
return KERN_INVALID_ARGUMENT;
}
handle_slot->h_object = &task->t_address_space->vr_base;
object_add_handle(&task->t_address_space->vr_base);
handle_slot->h_object = &task->t_address_space->s_base;
object_add_handle(&task->t_address_space->s_base);
task_unlock_irqrestore(self, flags);
object_unref(task_obj);