1 /* Copyright (C) 2015-2021 Free Software Foundation, Inc.
3 Contributed by Intel Corp. <walfred.tedeschi@intel.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18 #include "x86-cpuid.h"
26 unsigned int eax
, ebx
, ecx
, edx
;
28 if (!__get_cpuid (1, &eax
, &ebx
, &ecx
, &edx
))
31 if ((ecx
& bit_OSXSAVE
) == bit_OSXSAVE
)
33 if (__get_cpuid_max (0, NULL
) < 7)
36 __cpuid_count (7, 0, eax
, ebx
, ecx
, edx
);
38 if ((ebx
& bit_MPX
) == bit_MPX
)
47 upper (int * p
, int len
)
50 len
++; /* b0-size-test. */
59 int a
= 0; /* Dummy variable for debugging purposes. */
61 a
++; /* register-eval. */
62 upper (sx
, OUR_SIZE
+ 2);
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