kern_malloc(D3X)

NAME
     kern_malloc - allocate kernel virtual memory

SYNOPSIS
     #include "sys/types.h"

     void *kern_malloc(int num_bytes);

DESCRIPTION
     kern_malloc allocates num_bytes of kernel virtual memory. If necessary,
     it sleeps until the entire requested memory is available. Therefore, do
     not call this function from an interrupt routine. Memory is not
     physically contiguous.

   Return Values
     Returns a pointer to the requested memory.

   See Also
     kern_calloc(D3X), kern_free(D3X), kmem_alloc(D3)

   Note
     Drivers that use DMA should use kmem_alloc(D3) to allocate buffers for
     DMA and free that memory with kmem_free(D3). For a discussion, see
     kmem_alloc(D3).