IOMallocPageable
Allocates pageable memory in the kernel map.
Declaration
void * IOMallocPageable(vm_size_t size, vm_size_t alignment);Parameters
- size:
Size of the memory requested.
- alignment:
Byte count of the alignment for the memory. For example, pass 256 to get memory allocated at an address with bits 0-7 zero.
Return Value
Pointer to the allocated memory, or zero on failure.
Discussion
This is a utility to allocate pageable memory in the kernel. This function may block and so should not be called from interrupt level or while a simple lock is held.