git.saurik.com Git - apple/xnu.git/blob - osfmk/i386/vmx/vmx

1 /*

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 */

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"

37 void *

38 vmx_pcalloc(void)

39 {

40 char *pptr;

41 kern_return_t ret;

         ret = kmem_alloc_kobject(kernel_map, (vm_offset_t *)&pptr, PAGE_SIZE, VM_KERN_MEMORY_OSFMK);

43 if (ret != KERN_SUCCESS) {

44 return NULL;

45 }

46 bzero(pptr, PAGE_SIZE);

47 return pptr;

48 }

50 addr64_t

 vmx_paddr(void *va)

52 {

         return ptoa_64(pmap_find_phys(kernel_pmap, (addr64_t)(uintptr_t)va));

54 }

56 void

 vmx_pfree(void *va)

58 {

         kmem_free(kernel_map, (vm_offset_t)va, PAGE_SIZE);

60 }