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ArmPkg/ArmMmuLib ARM: handle unmapped sections when updating permissions
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1#------------------------------------------------------------------------------\r
2#\r
3# Copyright (c) 2016, Linaro Limited. All rights reserved.\r
4#\r
5# This program and the accompanying materials\r
6# are licensed and made available under the terms and conditions of the BSD License\r
7# which accompanies this distribution. The full text of the license may be found at\r
8# http://opensource.org/licenses/bsd-license.php\r
9#\r
10# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12#\r
13#------------------------------------------------------------------------------\r
14\r
15#include <AsmMacroIoLib.h>\r
16\r
17.text\r
18.align 2\r
19\r
20GCC_ASM_EXPORT (ArmReadIdMmfr0)\r
21GCC_ASM_EXPORT (ArmHasMpExtensions)\r
22\r
23#------------------------------------------------------------------------------\r
24\r
25ASM_PFX (ArmHasMpExtensions):\r
26 mrc p15,0,R0,c0,c0,5\r
27 // Get Multiprocessing extension (bit31)\r
28 lsr R0, R0, #31\r
29 bx LR\r
30\r
31ASM_PFX(ArmReadIdMmfr0):\r
32 mrc p15, 0, r0, c0, c1, 4 @ Read ID_MMFR0 Register\r
33 bx lr\r
34\r
35ASM_FUNCTION_REMOVE_IF_UNREFERENCED\r