Xen Test Framework
processor.h
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1 #ifndef XTF_X86_PROCESSOR_H
2 #define XTF_X86_PROCESSOR_H
3 
4 /*
5  * EFLAGS bits.
6  */
7 #define X86_EFLAGS_CF 0x00000001 /* Carry Flag */
8 #define X86_EFLAGS_MBS 0x00000002 /* Resvd bit */
9 #define X86_EFLAGS_PF 0x00000004 /* Parity Flag */
10 #define X86_EFLAGS_AF 0x00000010 /* Auxillary carry Flag */
11 #define X86_EFLAGS_ZF 0x00000040 /* Zero Flag */
12 #define X86_EFLAGS_SF 0x00000080 /* Sign Flag */
13 #define X86_EFLAGS_TF 0x00000100 /* Trap Flag */
14 #define X86_EFLAGS_IF 0x00000200 /* Interrupt Flag */
15 #define X86_EFLAGS_DF 0x00000400 /* Direction Flag */
16 #define X86_EFLAGS_OF 0x00000800 /* Overflow Flag */
17 #define X86_EFLAGS_IOPL 0x00003000 /* IOPL mask */
18 #define X86_EFLAGS_NT 0x00004000 /* Nested Task */
19 #define X86_EFLAGS_RF 0x00010000 /* Resume Flag */
20 #define X86_EFLAGS_VM 0x00020000 /* Virtual Mode */
21 #define X86_EFLAGS_AC 0x00040000 /* Alignment Check */
22 #define X86_EFLAGS_VIF 0x00080000 /* Virtual Interrupt Flag */
23 #define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */
24 #define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */
25 
26 /*
27  * CPU flags in CR0.
28  */
29 #define X86_CR0_PE 0x00000001 /* Enable Protected Mode (RW) */
30 #define X86_CR0_MP 0x00000002 /* Monitor Coprocessor (RW) */
31 #define X86_CR0_EM 0x00000004 /* Require FPU Emulation (RO) */
32 #define X86_CR0_TS 0x00000008 /* Task Switched (RW) */
33 #define X86_CR0_ET 0x00000010 /* Extension type (RO) */
34 #define X86_CR0_NE 0x00000020 /* Numeric Error Reporting (RW) */
35 #define X86_CR0_WP 0x00010000 /* Supervisor Write Protect (RW) */
36 #define X86_CR0_AM 0x00040000 /* Alignment Checking (RW) */
37 #define X86_CR0_NW 0x20000000 /* Not Write-Through (RW) */
38 #define X86_CR0_CD 0x40000000 /* Cache Disable (RW) */
39 #define X86_CR0_PG 0x80000000 /* Paging (RW) */
40 
41 /*
42  * CPU features in CR4.
43  */
44 #define X86_CR4_VME 0x00000001 /* VM86 extensions */
45 #define X86_CR4_PVI 0x00000002 /* Virtual interrupts flag */
46 #define X86_CR4_TSD 0x00000004 /* Disable time stamp at ipl 3 */
47 #define X86_CR4_DE 0x00000008 /* Debugging extensions */
48 #define X86_CR4_PSE 0x00000010 /* Page size extensions */
49 #define X86_CR4_PAE 0x00000020 /* Physical address extensions */
50 #define X86_CR4_MCE 0x00000040 /* Machine check */
51 #define X86_CR4_PGE 0x00000080 /* Global pages */
52 #define X86_CR4_PCE 0x00000100 /* Performance counters at ipl 3 */
53 #define X86_CR4_OSFXSR 0x00000200 /* Fast FPU save and restore */
54 #define X86_CR4_OSXMMEXCPT 0x00000400 /* Unmasked SSE exceptions */
55 #define X86_CR4_UMIP 0x00000800 /* UMIP */
56 #define X86_CR4_VMXE 0x00002000 /* VMX */
57 #define X86_CR4_SMXE 0x00004000 /* SMX */
58 #define X86_CR4_FSGSBASE 0x00010000 /* {rd,wr}{fs,gs}base */
59 #define X86_CR4_PCIDE 0x00020000 /* PCID */
60 #define X86_CR4_OSXSAVE 0x00040000 /* XSAVE/XRSTOR */
61 #define X86_CR4_SMEP 0x00100000 /* SMEP */
62 #define X86_CR4_SMAP 0x00200000 /* SMAP */
63 
64 /*
65  * CPU features in XCR0.
66  */
67 #define _XSTATE_FP 0
68 #define XSTATE_FP (1ULL << _XSTATE_FP)
69 #define _XSTATE_SSE 1
70 #define XSTATE_SSE (1ULL << _XSTATE_SSE)
71 #define _XSTATE_YMM 2
72 #define XSTATE_YMM (1ULL << _XSTATE_YMM)
73 #define _XSTATE_BNDREGS 3
74 #define XSTATE_BNDREGS (1ULL << _XSTATE_BNDREGS)
75 #define _XSTATE_BNDCSR 4
76 #define XSTATE_BNDCSR (1ULL << _XSTATE_BNDCSR)
77 #define _XSTATE_OPMASK 5
78 #define XSTATE_OPMASK (1ULL << _XSTATE_OPMASK)
79 #define _XSTATE_ZMM 6
80 #define XSTATE_ZMM (1ULL << _XSTATE_ZMM)
81 #define _XSTATE_HI_ZMM 7
82 #define XSTATE_HI_ZMM (1ULL << _XSTATE_HI_ZMM)
83 #define _XSTATE_PKRU 9
84 #define XSTATE_PKRU (1ULL << _XSTATE_PKRU)
85 #define _XSTATE_LWP 62
86 #define XSTATE_LWP (1ULL << _XSTATE_LWP)
87 
88 /*
89  * Exception mnemonics.
90  */
91 #define X86_EXC_DE 0 /* Divide Error. */
92 #define X86_EXC_DB 1 /* Debug Exception. */
93 #define X86_EXC_NMI 2 /* NMI. */
94 #define X86_EXC_BP 3 /* Breakpoint. */
95 #define X86_EXC_OF 4 /* Overflow. */
96 #define X86_EXC_BR 5 /* BOUND Range. */
97 #define X86_EXC_UD 6 /* Invalid Opcode. */
98 #define X86_EXC_NM 7 /* Device Not Available. */
99 #define X86_EXC_DF 8 /* Double Fault. */
100 #define X86_EXC_CSO 9 /* Coprocessor Segment Overrun. */
101 #define X86_EXC_TS 10 /* Invalid TSS. */
102 #define X86_EXC_NP 11 /* Segment Not Present. */
103 #define X86_EXC_SS 12 /* Stack-Segment Fault. */
104 #define X86_EXC_GP 13 /* General Porection Fault. */
105 #define X86_EXC_PF 14 /* Page Fault. */
106 #define X86_EXC_SPV 15 /* PIC Spurious Interrupt Vector. */
107 #define X86_EXC_MF 16 /* Maths fault (x87 FPU). */
108 #define X86_EXC_AC 17 /* Alignment Check. */
109 #define X86_EXC_MC 18 /* Machine Check. */
110 #define X86_EXC_XM 19 /* SIMD Exception. */
111 #define X86_EXC_VE 20 /* Virtualisation Exception. */
112 
113 /* Bitmap of exceptions which have error codes. */
114 #define X86_EXC_HAVE_EC ((1 << X86_EXC_DF) | (1 << X86_EXC_TS) | \
115  (1 << X86_EXC_NP) | (1 << X86_EXC_SS) | \
116  (1 << X86_EXC_GP) | (1 << X86_EXC_PF) | \
117  (1 << X86_EXC_AC))
118 
119 /* Bitmap of exceptions which are classified as faults. */
120 #define X86_EXC_FAULTS ((1 << X86_EXC_DE) | (1 << X86_EXC_BR) | \
121  (1 << X86_EXC_UD) | (1 << X86_EXC_NM) | \
122  (1 << X86_EXC_CSO) | (1 << X86_EXC_TS) | \
123  (1 << X86_EXC_NP) | (1 << X86_EXC_SS) | \
124  (1 << X86_EXC_GP) | (1 << X86_EXC_PF) | \
125  (1 << X86_EXC_MF) | (1 << X86_EXC_AC) | \
126  (1 << X86_EXC_XM) | (1 << X86_EXC_VE))
127 
128 /* Bitmap of exceptions which are classified as interrupts. */
129 #define X86_EXC_INTERRUPTS (1 << X86_EXC_NMI)
130 
131 /* Bitmap of exceptions which are classified as traps. */
132 #define X86_EXC_TRAPS ((1 << X86_EXC_BP) | (1 << X86_EXC_OF))
133 
134 /* Bitmap of exceptions which are classified as aborts. */
135 #define X86_EXC_ABORTS ((1 << X86_EXC_DF) | (1 << X86_EXC_MC))
136 
137 /* Number of reserved vectors for exceptions. */
138 #define X86_NR_RESERVED_VECTORS 32
139 
140 /*
141  * Error Code mnemonics.
142  */
143 /* Segment-based Error Code - architecturally defined. */
144 #define X86_EC_EXT (1U << 0) /* External event. */
145 #define X86_EC_IDT (1U << 1) /* Descriptor Location. IDT, or LDT/GDT */
146 #define X86_EC_TI (1U << 2) /* Only if !IDT. LDT or GDT. */
147 
148 /* Segment-based Error Code - supplemental constants. */
149 #define X86_EC_TABLE_MASK (3 << 1)
150 #define X86_EC_SEL_SHIFT 3
151 #define X86_EC_SEL_MASK (~0U << X86_EC_SEL_SHIFT)
152 #define X86_EC_GDT 0
153 #define X86_EC_LDT X86_EC_TI
154 
155 /* Pagefault Error Code - architecturally defined. */
156 #define X86_PFEC_PRESENT (1U << 0)
157 #define X86_PFEC_WRITE (1U << 1)
158 #define X86_PFEC_USER (1U << 2)
159 #define X86_PFEC_RSVD (1U << 3)
160 #define X86_PFEC_INSN (1U << 4)
161 #define X86_PFEC_PK (1U << 5)
162 
163 /* Pagefault Error Code - Short form mnemonics. */
164 #define X86_PFEC_P X86_PFEC_PRESENT
165 #define X86_PFEC_W X86_PFEC_WRITE
166 #define X86_PFEC_U X86_PFEC_USER
167 #define X86_PFEC_R X86_PFEC_RSVD
168 #define X86_PFEC_I X86_PFEC_INSN
169 #define X86_PFEC_K X86_PFEC_PK
170 
171 /*
172  * Selector mnemonics.
173  */
174 /* Architecturally defined. */
175 #define X86_SEL_TI (1U << 2) /* Table Indicator. */
176 
177 /* Supplemental constants. */
178 #define X86_SEL_RPL_MASK 3 /* RPL is the bottom two bits. */
179 #define X86_SEL_GDT 0
180 #define X86_SEL_LDT X86_SEL_TI
181 
182 #endif /* XTF_X86_PROCESSOR_H */
183 
184 /*
185  * Local variables:
186  * mode: C
187  * c-file-style: "BSD"
188  * c-basic-offset: 4
189  * tab-width: 4
190  * indent-tabs-mode: nil
191  * End:
192  */
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