osfmk/i386/vmx/vmx_shims.c

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #include <string.h>
  30 #include <kern/assert.h>
  31 #include <mach/i386/vm_param.h>
  32 #include <mach/i386/kern_return.h>
  33 #include <vm/vm_kern.h>
  34 #include <i386/pmap.h>
  35 #include "vmx_shims.h"
  36
  37 void *
  38 vmx_pcalloc(void)
  39 {
  40         char               *pptr;
  41         kern_return_t   ret;
  42         ret = kmem_alloc_kobject(kernel_map, (vm_offset_t *)&pptr, PAGE_SIZE);
  43         if (ret != KERN_SUCCESS) return (NULL);
  44         bzero(pptr, PAGE_SIZE);
  45         return (pptr);
  46 }
  47
  48 addr64_t
  49 vmx_paddr(void *va)
  50 {
  51         return (ptoa_64(pmap_find_phys(kernel_pmap, (addr64_t)(uintptr_t)va)));
  52 }
  53
  54 void
  55 vmx_pfree(void *va)
  56 {
  57         kmem_free(kernel_map, (vm_offset_t)va, PAGE_SIZE);
  58 }