diff options
Diffstat (limited to 'vm/vm_kern.c')
| -rw-r--r-- | vm/vm_kern.c | 46 |
1 files changed, 38 insertions, 8 deletions
diff --git a/vm/vm_kern.c b/vm/vm_kern.c index a84553d6..2e333ee1 100644 --- a/vm/vm_kern.c +++ b/vm/vm_kern.c @@ -432,17 +432,14 @@ retry: } /* - * kmem_alloc_wired: + * kmem_valloc: * - * Allocate wired-down memory in the kernel's address map - * or a submap. The memory is not zero-filled. - * - * The memory is allocated in the kernel_object. - * It may not be copied with vm_map_copy. + * Allocate addressing space in the kernel's address map + * or a submap. The adressing space does not map anything. */ kern_return_t -kmem_alloc_wired( +kmem_valloc( vm_map_t map, vm_offset_t *addrp, vm_size_t size) @@ -476,7 +473,7 @@ retry: goto retry; } - printf_once("no more room for kmem_alloc_wired in %p (%s)\n", + printf_once("no more room for kmem_valloc in %p (%s)\n", map, map->name); return kr; } @@ -504,6 +501,39 @@ retry: vm_map_unlock(map); /* + * Return the memory, not mapped. + */ + *addrp = addr; + return KERN_SUCCESS; +} + +/* + * kmem_alloc_wired: + * + * Allocate wired-down memory in the kernel's address map + * or a submap. The memory is not zero-filled. + * + * The memory is allocated in the kernel_object. + * It may not be copied with vm_map_copy. + */ + +kern_return_t +kmem_alloc_wired( + vm_map_t map, + vm_offset_t *addrp, + vm_size_t size) +{ + vm_offset_t offset; + vm_offset_t addr; + kern_return_t kr; + + kr = kmem_valloc(map, &addr, size); + if (kr != KERN_SUCCESS) + return kr; + + offset = addr - VM_MIN_KERNEL_ADDRESS; + + /* * Allocate wired-down memory in the kernel_object, * for this entry, and enter it in the kernel pmap. */ |