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Redesign userspace memory management
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This commit is contained in:
Kamil Kowalczyk
2026-01-27 17:04:08 +01:00
parent 600886a7ee
commit b388b30b24
23 changed files with 195 additions and 484 deletions
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46
kernel/proc/resource.c
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@@ -24,50 +24,6 @@ struct proc_resource* proc_find_resource (struct procgroup* procgroup, int rid)
return resource;
}
struct proc_resource* proc_create_resource_mem (struct procgroup* procgroup, int rid, size_t pages,
uintptr_t paddr, bool managed) {
spin_lock_ctx_t ctxpg;
struct proc_resource* resource;
if (pages == 0)
return NULL;
resource = proc_find_resource (procgroup, rid);
if (resource != NULL)
return resource;
resource = malloc (sizeof (*resource));
if (resource == NULL)
return NULL;
memset (resource, 0, sizeof (*resource));
resource->lock = SPIN_LOCK_INIT;
resource->ops.cleanup = &proc_cleanup_resource_mem;
resource->rid = rid;
resource->type = PR_MEM;
resource->u.mem.resource = resource;
if (managed) {
resource->u.mem.managed = true;
} else {
paddr = pmm_alloc (pages);
if (paddr == PMM_ALLOC_ERR) {
free (resource);
return NULL;
}
resource->u.mem.managed = false;
}
resource->u.mem.paddr = paddr;
resource->u.mem.pages = resource->u.mem.alive_pages = pages;
resource->refs = 1;
spin_lock (&procgroup->lock, &ctxpg);
rbtree_insert (struct proc_resource, &procgroup->resource_tree, &resource->resource_tree_link,
resource_tree_link, rid);
spin_unlock (&procgroup->lock, &ctxpg);
return resource;
}
struct proc_resource* proc_create_resource_mutex (struct procgroup* procgroup, int rid) {
spin_lock_ctx_t ctxpg;
struct proc_resource* resource;
@@ -83,7 +39,7 @@ struct proc_resource* proc_create_resource_mutex (struct procgroup* procgroup, i
memset (resource, 0, sizeof (*resource));
resource->lock = SPIN_LOCK_INIT;
resource->ops.cleanup = &proc_cleanup_resource_mutex;
resource->u.mem.resource = resource;
resource->u.mutex.resource = resource;
resource->rid = rid;
resource->type = PR_MUTEX;
resource->refs = 1;