Blame view

kernel/linux-rt-4.4.41/arch/x86/xen/efi.c 1.36 KB
5113f6f70   김현기   kernel add
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
  /*
   * Copyright (c) 2014 Oracle Co., Daniel Kiper
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License along
   * with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  #include <linux/bitops.h>
  #include <linux/efi.h>
  #include <linux/init.h>
  #include <linux/string.h>
  
  #include <xen/xen-ops.h>
  
  #include <asm/page.h>
  #include <asm/setup.h>
  
  void __init xen_efi_init(void)
  {
  	efi_system_table_t *efi_systab_xen;
  
  	efi_systab_xen = xen_efi_probe();
  
  	if (efi_systab_xen == NULL)
  		return;
  
  	strncpy((char *)&boot_params.efi_info.efi_loader_signature, "Xen",
  			sizeof(boot_params.efi_info.efi_loader_signature));
  	boot_params.efi_info.efi_systab = (__u32)__pa(efi_systab_xen);
  	boot_params.efi_info.efi_systab_hi = (__u32)(__pa(efi_systab_xen) >> 32);
  
  	set_bit(EFI_BOOT, &efi.flags);
  	set_bit(EFI_PARAVIRT, &efi.flags);
  	set_bit(EFI_64BIT, &efi.flags);
  }