include/asm/cpuid.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * CPUID-related helpers/definitions
0004  *
0005  * Derived from arch/x86/kvm/cpuid.c
0006  */
0007
0008 #ifndef _ASM_X86_CPUID_H
0009 #define _ASM_X86_CPUID_H
0010
0011 static __always_inline bool cpuid_function_is_indexed(u32 function)
0012 {
0013     switch (function) {
0014     case 4:
0015     case 7:
0016     case 0xb:
0017     case 0xd:
0018     case 0xf:
0019     case 0x10:
0020     case 0x12:
0021     case 0x14:
0022     case 0x17:
0023     case 0x18:
0024     case 0x1d:
0025     case 0x1e:
0026     case 0x1f:
0027     case 0x8000001d:
0028         return true;
0029     }
0030
0031     return false;
0032 }
0033
0034 #endif /* _ASM_X86_CPUID_H */