Contributors: 12
Author Tokens Token Proportion Commits Commit Proportion
Dave Hansen 144 47.68% 6 30.00%
Peter Zijlstra 46 15.23% 2 10.00%
Sean Christopherson 20 6.62% 2 10.00%
Fenghua Yu 16 5.30% 2 10.00%
Thomas Gleixner 16 5.30% 1 5.00%
Kuppuswamy Sathyanarayanan 16 5.30% 1 5.00%
Kirill A. Shutemov 15 4.97% 1 5.00%
Ricardo Neri 14 4.64% 1 5.00%
Andrew Lutomirski 9 2.98% 1 5.00%
David Woodhouse 4 1.32% 1 5.00%
Borislav Petkov 1 0.33% 1 5.00%
Babu Moger 1 0.33% 1 5.00%
Total 302 20 


#ifndef _ASM_X86_DISABLED_FEATURES_H
#define _ASM_X86_DISABLED_FEATURES_H

/* These features, although they might be available in a CPU
 * will not be used because the compile options to support
 * them are not present.
 *
 * This code allows them to be checked and disabled at
 * compile time without an explicit #ifdef.  Use
 * cpu_feature_enabled().
 */

#ifdef CONFIG_X86_UMIP
# define DISABLE_UMIP	0
#else
# define DISABLE_UMIP	(1<<(X86_FEATURE_UMIP & 31))
#endif

#ifdef CONFIG_X86_64
# define DISABLE_VME		(1<<(X86_FEATURE_VME & 31))
# define DISABLE_K6_MTRR	(1<<(X86_FEATURE_K6_MTRR & 31))
# define DISABLE_CYRIX_ARR	(1<<(X86_FEATURE_CYRIX_ARR & 31))
# define DISABLE_CENTAUR_MCR	(1<<(X86_FEATURE_CENTAUR_MCR & 31))
# define DISABLE_PCID		0
#else
# define DISABLE_VME		0
# define DISABLE_K6_MTRR	0
# define DISABLE_CYRIX_ARR	0
# define DISABLE_CENTAUR_MCR	0
# define DISABLE_PCID		(1<<(X86_FEATURE_PCID & 31))
#endif /* CONFIG_X86_64 */

#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
# define DISABLE_PKU		0
# define DISABLE_OSPKE		0
#else
# define DISABLE_PKU		(1<<(X86_FEATURE_PKU & 31))
# define DISABLE_OSPKE		(1<<(X86_FEATURE_OSPKE & 31))
#endif /* CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS */

#ifdef CONFIG_X86_5LEVEL
# define DISABLE_LA57	0
#else
# define DISABLE_LA57	(1<<(X86_FEATURE_LA57 & 31))
#endif

#ifdef CONFIG_PAGE_TABLE_ISOLATION
# define DISABLE_PTI		0
#else
# define DISABLE_PTI		(1 << (X86_FEATURE_PTI & 31))
#endif

#ifdef CONFIG_RETPOLINE
# define DISABLE_RETPOLINE	0
#else
# define DISABLE_RETPOLINE	((1 << (X86_FEATURE_RETPOLINE & 31)) | \
				 (1 << (X86_FEATURE_RETPOLINE_LFENCE & 31)))
#endif

#ifdef CONFIG_RETHUNK
# define DISABLE_RETHUNK	0
#else
# define DISABLE_RETHUNK	(1 << (X86_FEATURE_RETHUNK & 31))
#endif

#ifdef CONFIG_CPU_UNRET_ENTRY
# define DISABLE_UNRET		0
#else
# define DISABLE_UNRET		(1 << (X86_FEATURE_UNRET & 31))
#endif

#ifdef CONFIG_INTEL_IOMMU_SVM
# define DISABLE_ENQCMD		0
#else
# define DISABLE_ENQCMD		(1 << (X86_FEATURE_ENQCMD & 31))
#endif

#ifdef CONFIG_X86_SGX
# define DISABLE_SGX	0
#else
# define DISABLE_SGX	(1 << (X86_FEATURE_SGX & 31))
#endif

#ifdef CONFIG_INTEL_TDX_GUEST
# define DISABLE_TDX_GUEST	0
#else
# define DISABLE_TDX_GUEST	(1 << (X86_FEATURE_TDX_GUEST & 31))
#endif

/*
 * Make sure to add features to the correct mask
 */
#define DISABLED_MASK0	(DISABLE_VME)
#define DISABLED_MASK1	0
#define DISABLED_MASK2	0
#define DISABLED_MASK3	(DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
#define DISABLED_MASK4	(DISABLE_PCID)
#define DISABLED_MASK5	0
#define DISABLED_MASK6	0
#define DISABLED_MASK7	(DISABLE_PTI)
#define DISABLED_MASK8	(DISABLE_TDX_GUEST)
#define DISABLED_MASK9	(DISABLE_SGX)
#define DISABLED_MASK10	0
#define DISABLED_MASK11	(DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET)
#define DISABLED_MASK12	0
#define DISABLED_MASK13	0
#define DISABLED_MASK14	0
#define DISABLED_MASK15	0
#define DISABLED_MASK16	(DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
			 DISABLE_ENQCMD)
#define DISABLED_MASK17	0
#define DISABLED_MASK18	0
#define DISABLED_MASK19	0
#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 20)

#endif /* _ASM_X86_DISABLED_FEATURES_H */