summaryrefslogtreecommitdiff
path: root/arch/x86/include/uapi/asm/processor-flags.h
blob: 6f335539966500b11311d2a0a5c4dd5f3c315eab (plain)
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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_ASM_X86_PROCESSOR_FLAGS_H
#define _UAPI_ASM_X86_PROCESSOR_FLAGS_H
/* Various flags defined: can be included from assembler. */

#include <linux/const.h>

/*
 * EFLAGS bits
 */
#define X86_EFLAGS_CF_BIT	0 /* Carry Flag */
#define X86_EFLAGS_CF		_BITUL(X86_EFLAGS_CF_BIT)
#define X86_EFLAGS_FIXED_BIT	1 /* Bit 1 - always on */
#define X86_EFLAGS_FIXED	_BITUL(X86_EFLAGS_FIXED_BIT)
#define X86_EFLAGS_PF_BIT	2 /* Parity Flag */
#define X86_EFLAGS_PF		_BITUL(X86_EFLAGS_PF_BIT)
#define X86_EFLAGS_AF_BIT	4 /* Auxiliary carry Flag */
#define X86_EFLAGS_AF		_BITUL(X86_EFLAGS_AF_BIT)
#define X86_EFLAGS_ZF_BIT	6 /* Zero Flag */
#define X86_EFLAGS_ZF		_BITUL(X86_EFLAGS_ZF_BIT)
#define X86_EFLAGS_SF_BIT	7 /* Sign Flag */
#define X86_EFLAGS_SF		_BITUL(X86_EFLAGS_SF_BIT)
#define X86_EFLAGS_TF_BIT	8 /* Trap Flag */
#define X86_EFLAGS_TF		_BITUL(X86_EFLAGS_TF_BIT)
#define X86_EFLAGS_IF_BIT	9 /* Interrupt Flag */
#define X86_EFLAGS_IF		_BITUL(X86_EFLAGS_IF_BIT)
#define X86_EFLAGS_DF_BIT	10 /* Direction Flag */
#define X86_EFLAGS_DF		_BITUL(X86_EFLAGS_DF_BIT)
#define X86_EFLAGS_OF_BIT	11 /* Overflow Flag */
#define X86_EFLAGS_OF		_BITUL(X86_EFLAGS_OF_BIT)
#define X86_EFLAGS_IOPL_BIT	12 /* I/O Privilege Level (2 bits) */
#define X86_EFLAGS_IOPL		(_AC(3,UL) << X86_EFLAGS_IOPL_BIT)
#define X86_EFLAGS_NT_BIT	14 /* Nested Task */
#define X86_EFLAGS_NT		_BITUL(X86_EFLAGS_NT_BIT)
#define X86_EFLAGS_RF_BIT	16 /* Resume Flag */
#define X86_EFLAGS_RF		_BITUL(X86_EFLAGS_RF_BIT)
#define X86_EFLAGS_VM_BIT	17 /* Virtual Mode */
#define X86_EFLAGS_VM		_BITUL(X86_EFLAGS_VM_BIT)
#define X86_EFLAGS_AC_BIT	18 /* Alignment Check/Access Control */
#define X86_EFLAGS_AC		_BITUL(X86_EFLAGS_AC_BIT)
#define X86_EFLAGS_VIF_BIT	19 /* Virtual Interrupt Flag */
#define X86_EFLAGS_VIF		_BITUL(X86_EFLAGS_VIF_BIT)
#define X86_EFLAGS_VIP_BIT	20 /* Virtual Interrupt Pending */
#define X86_EFLAGS_VIP		_BITUL(X86_EFLAGS_VIP_BIT)
#define X86_EFLAGS_ID_BIT	21 /* CPUID detection */
#define X86_EFLAGS_ID		_BITUL(X86_EFLAGS_ID_BIT)

/*
 * Basic CPU control in CR0
 */
#define X86_CR0_PE_BIT		0 /* Protection Enable */
#define X86_CR0_PE		_BITUL(X86_CR0_PE_BIT)
#define X86_CR0_MP_BIT		1 /* Monitor Coprocessor */
#define X86_CR0_MP		_BITUL(X86_CR0_MP_BIT)
#define X86_CR0_EM_BIT		2 /* Emulation */
#define X86_CR0_EM		_BITUL(X86_CR0_EM_BIT)
#define X86_CR0_TS_BIT		3 /* Task Switched */
#define X86_CR0_TS		_BITUL(X86_CR0_TS_BIT)
#define X86_CR0_ET_BIT		4 /* Extension Type */
#define X86_CR0_ET		_BITUL(X86_CR0_ET_BIT)
#define X86_CR0_NE_BIT		5 /* Numeric Error */
#define X86_CR0_NE		_BITUL(X86_CR0_NE_BIT)
#define X86_CR0_WP_BIT		16 /* Write Protect */
#define X86_CR0_WP		_BITUL(X86_CR0_WP_BIT)
#define X86_CR0_AM_BIT		18 /* Alignment Mask */
#define X86_CR0_AM		_BITUL(X86_CR0_AM_BIT)
#define X86_CR0_NW_BIT		29 /* Not Write-through */
#define X86_CR0_NW		_BITUL(X86_CR0_NW_BIT)
#define X86_CR0_CD_BIT		30 /* Cache Disable */
#define X86_CR0_CD		_BITUL(X86_CR0_CD_BIT)
#define X86_CR0_PG_BIT		31 /* Paging */
#define X86_CR0_PG		_BITUL(X86_CR0_PG_BIT)

/*
 * Paging options in CR3
 */
#define X86_CR3_PWT_BIT		3 /* Page Write Through */
#define X86_CR3_PWT		_BITUL(X86_CR3_PWT_BIT)
#define X86_CR3_PCD_BIT		4 /* Page Cache Disable */
#define X86_CR3_PCD		_BITUL(X86_CR3_PCD_BIT)
#define X86_CR3_PCID_MASK	_AC(0x00000fff,UL) /* PCID Mask */

/*
 * Intel CPU features in CR4
 */
#define X86_CR4_VME_BIT		0 /* enable vm86 extensions */
#define X86_CR4_VME		_BITUL(X86_CR4_VME_BIT)
#define X86_CR4_PVI_BIT		1 /* virtual interrupts flag enable */
#define X86_CR4_PVI		_BITUL(X86_CR4_PVI_BIT)
#define X86_CR4_TSD_BIT		2 /* disable time stamp at ipl 3 */
#define X86_CR4_TSD		_BITUL(X86_CR4_TSD_BIT)
#define X86_CR4_DE_BIT		3 /* enable debugging extensions */
#define X86_CR4_DE		_BITUL(X86_CR4_DE_BIT)
#define X86_CR4_PSE_BIT		4 /* enable page size extensions */
#define X86_CR4_PSE		_BITUL(X86_CR4_PSE_BIT)
#define X86_CR4_PAE_BIT		5 /* enable physical address extensions */
#define X86_CR4_PAE		_BITUL(X86_CR4_PAE_BIT)
#define X86_CR4_MCE_BIT		6 /* Machine check enable */
#define X86_CR4_MCE		_BITUL(X86_CR4_MCE_BIT)
#define X86_CR4_PGE_BIT		7 /* enable global pages */
#define X86_CR4_PGE		_BITUL(X86_CR4_PGE_BIT)
#define X86_CR4_PCE_BIT		8 /* enable performance counters at ipl 3 */
#define X86_CR4_PCE		_BITUL(X86_CR4_PCE_BIT)
#define X86_CR4_OSFXSR_BIT	9 /* enable fast FPU save and restore */
#define X86_CR4_OSFXSR		_BITUL(X86_CR4_OSFXSR_BIT)
#define X86_CR4_OSXMMEXCPT_BIT	10 /* enable unmasked SSE exceptions */
#define X86_CR4_OSXMMEXCPT	_BITUL(X86_CR4_OSXMMEXCPT_BIT)
#define X86_CR4_LA57_BIT	12 /* enable 5-level page tables */
#define X86_CR4_LA57		_BITUL(X86_CR4_LA57_BIT)
#define X86_CR4_VMXE_BIT	13 /* enable VMX virtualization */
#define X86_CR4_VMXE		_BITUL(X86_CR4_VMXE_BIT)
#define X86_CR4_SMXE_BIT	14 /* enable safer mode (TXT) */
#define X86_CR4_SMXE		_BITUL(X86_CR4_SMXE_BIT)
#define X86_CR4_FSGSBASE_BIT	16 /* enable RDWRFSGS support */
#define X86_CR4_FSGSBASE	_BITUL(X86_CR4_FSGSBASE_BIT)
#define X86_CR4_PCIDE_BIT	17 /* enable PCID support */
#define X86_CR4_PCIDE		_BITUL(X86_CR4_PCIDE_BIT)
#define X86_CR4_OSXSAVE_BIT	18 /* enable xsave and xrestore */
#define X86_CR4_OSXSAVE		_BITUL(X86_CR4_OSXSAVE_BIT)
#define X86_CR4_SMEP_BIT	20 /* enable SMEP support */
#define X86_CR4_SMEP		_BITUL(X86_CR4_SMEP_BIT)
#define X86_CR4_SMAP_BIT	21 /* enable SMAP support */
#define X86_CR4_SMAP		_BITUL(X86_CR4_SMAP_BIT)
#define X86_CR4_PKE_BIT		22 /* enable Protection Keys support */
#define X86_CR4_PKE		_BITUL(X86_CR4_PKE_BIT)

/*
 * x86-64 Task Priority Register, CR8
 */
#define X86_CR8_TPR		_AC(0x0000000f,UL) /* task priority register */

/*
 * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>
 */

/*
 *      NSC/Cyrix CPU configuration register indexes
 */
#define CX86_PCR0	0x20
#define CX86_GCR	0xb8
#define CX86_CCR0	0xc0
#define CX86_CCR1	0xc1
#define CX86_CCR2	0xc2
#define CX86_CCR3	0xc3
#define CX86_CCR4	0xe8
#define CX86_CCR5	0xe9
#define CX86_CCR6	0xea
#define CX86_CCR7	0xeb
#define CX86_PCR1	0xf0
#define CX86_DIR0	0xfe
#define CX86_DIR1	0xff
#define CX86_ARR_BASE	0xc4
#define CX86_RCR_BASE	0xdc


#endif /* _UAPI_ASM_X86_PROCESSOR_FLAGS_H */