1 |
dpavlin |
4 |
#ifndef CPU_X86_H |
2 |
|
|
#define CPU_X86_H |
3 |
|
|
|
4 |
|
|
/* |
5 |
|
|
* Copyright (C) 2005 Anders Gavare. All rights reserved. |
6 |
|
|
* |
7 |
|
|
* Redistribution and use in source and binary forms, with or without |
8 |
|
|
* modification, are permitted provided that the following conditions are met: |
9 |
|
|
* |
10 |
|
|
* 1. Redistributions of source code must retain the above copyright |
11 |
|
|
* notice, this list of conditions and the following disclaimer. |
12 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright |
13 |
|
|
* notice, this list of conditions and the following disclaimer in the |
14 |
|
|
* documentation and/or other materials provided with the distribution. |
15 |
|
|
* 3. The name of the author may not be used to endorse or promote products |
16 |
|
|
* derived from this software without specific prior written permission. |
17 |
|
|
* |
18 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
19 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
20 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
21 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
22 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
23 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
24 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
25 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
26 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
27 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
28 |
|
|
* SUCH DAMAGE. |
29 |
|
|
* |
30 |
|
|
* |
31 |
dpavlin |
18 |
* $Id: cpu_x86.h,v 1.35 2005/10/27 14:01:15 debug Exp $ |
32 |
dpavlin |
4 |
*/ |
33 |
|
|
|
34 |
|
|
#include "misc.h" |
35 |
|
|
|
36 |
|
|
|
37 |
|
|
struct cpu_family; |
38 |
|
|
|
39 |
|
|
#define N_X86_REGS 16 |
40 |
|
|
|
41 |
|
|
#define x86_reg_names { \ |
42 |
|
|
"ax", "cx", "dx", "bx", "sp", "bp", "si", "di", \ |
43 |
|
|
"08", "09", "10", "11", "12", "13", "14", "15" } |
44 |
dpavlin |
6 |
#define x86_reg_names_bytes { \ |
45 |
|
|
"al", "cl", "dl", "bl", "ah", "ch", "dh", "bh" } |
46 |
dpavlin |
4 |
|
47 |
|
|
#define X86_R_AX 0 |
48 |
|
|
#define X86_R_CX 1 |
49 |
|
|
#define X86_R_DX 2 |
50 |
|
|
#define X86_R_BX 3 |
51 |
|
|
#define X86_R_SP 4 |
52 |
|
|
#define X86_R_BP 5 |
53 |
|
|
#define X86_R_SI 6 |
54 |
|
|
#define X86_R_DI 7 |
55 |
|
|
|
56 |
|
|
#define N_X86_SEGS 8 |
57 |
|
|
/* (All of these 8 are not actually used.) */ |
58 |
|
|
|
59 |
|
|
#define X86_S_ES 0 |
60 |
|
|
#define X86_S_CS 1 |
61 |
|
|
#define X86_S_SS 2 |
62 |
|
|
#define X86_S_DS 3 |
63 |
|
|
#define X86_S_FS 4 |
64 |
|
|
#define X86_S_GS 5 |
65 |
|
|
|
66 |
dpavlin |
6 |
#define x86_seg_names { "es", "cs", "ss", "ds", "fs", "gs", "segr6", "segr7" } |
67 |
dpavlin |
4 |
|
68 |
|
|
#define N_X86_CREGS 8 |
69 |
|
|
|
70 |
dpavlin |
6 |
#define N_X86_DREGS 8 |
71 |
|
|
|
72 |
dpavlin |
4 |
#define x86_cond_names { "o", "b", "z", "be", "s", "p", "l", "le" } |
73 |
|
|
#define N_X86_CONDS 8 |
74 |
|
|
|
75 |
|
|
#define X86_MODEL_8086 1 |
76 |
dpavlin |
6 |
#define X86_MODEL_80286 2 |
77 |
|
|
#define X86_MODEL_80386 3 |
78 |
|
|
#define X86_MODEL_80486 4 |
79 |
|
|
#define X86_MODEL_PENTIUM 5 |
80 |
|
|
#define X86_MODEL_AMD64 6 |
81 |
dpavlin |
4 |
|
82 |
|
|
struct x86_model { |
83 |
|
|
int model_number; |
84 |
|
|
char *name; |
85 |
|
|
}; |
86 |
|
|
|
87 |
|
|
#define x86_models { \ |
88 |
|
|
{ X86_MODEL_8086, "8086" }, \ |
89 |
dpavlin |
6 |
{ X86_MODEL_80286, "80286" }, \ |
90 |
dpavlin |
4 |
{ X86_MODEL_80386, "80386" }, \ |
91 |
dpavlin |
6 |
{ X86_MODEL_80486, "80486" }, \ |
92 |
dpavlin |
4 |
{ X86_MODEL_PENTIUM, "PENTIUM" }, \ |
93 |
|
|
{ X86_MODEL_AMD64, "AMD64" }, \ |
94 |
|
|
{ 0, NULL } \ |
95 |
|
|
} |
96 |
|
|
|
97 |
dpavlin |
12 |
#define X86_N_IC_ARGS 3 |
98 |
|
|
#define X86_INSTR_ALIGNMENT_SHIFT 0 |
99 |
|
|
#define X86_IC_ENTRIES_SHIFT 12 |
100 |
|
|
#define X86_IC_ENTRIES_PER_PAGE (1 << X86_IC_ENTRIES_SHIFT) |
101 |
|
|
#define X86_PC_TO_IC_ENTRY(a) ((a) & (X86_IC_ENTRIES_PER_PAGE-1)) |
102 |
|
|
#define X86_ADDR_TO_PAGENR(a) ((a) >> X86_IC_ENTRIES_SHIFT) |
103 |
dpavlin |
4 |
|
104 |
dpavlin |
12 |
struct x86_instr_call { |
105 |
|
|
void (*f)(struct cpu *, struct x86_instr_call *); |
106 |
|
|
size_t arg[X86_N_IC_ARGS]; |
107 |
|
|
}; |
108 |
|
|
|
109 |
|
|
/* Translation cache struct for each physical page: */ |
110 |
|
|
struct x86_tc_physpage { |
111 |
dpavlin |
18 |
struct x86_instr_call ics[X86_IC_ENTRIES_PER_PAGE + 1]; |
112 |
dpavlin |
12 |
uint32_t next_ofs; /* or 0 for end of chain */ |
113 |
dpavlin |
18 |
int flags; |
114 |
dpavlin |
12 |
uint64_t physaddr; |
115 |
|
|
}; |
116 |
|
|
|
117 |
|
|
#define X86_N_VPH_ENTRIES 1048576 |
118 |
|
|
|
119 |
|
|
#define X86_MAX_VPH_TLB_ENTRIES 256 |
120 |
|
|
struct x86_vpg_tlb_entry { |
121 |
|
|
int valid; |
122 |
|
|
int writeflag; |
123 |
|
|
int64_t timestamp; |
124 |
|
|
unsigned char *host_page; |
125 |
|
|
uint64_t vaddr_page; |
126 |
|
|
uint64_t paddr_page; |
127 |
|
|
}; |
128 |
|
|
|
129 |
dpavlin |
6 |
struct descriptor_cache { |
130 |
|
|
int valid; |
131 |
|
|
int default_op_size; |
132 |
|
|
int access_rights; |
133 |
|
|
int descr_type; |
134 |
|
|
int readable; |
135 |
|
|
int writable; |
136 |
|
|
int granularity; |
137 |
|
|
uint64_t base; |
138 |
|
|
uint64_t limit; |
139 |
|
|
}; |
140 |
|
|
|
141 |
|
|
|
142 |
dpavlin |
4 |
struct x86_cpu { |
143 |
|
|
struct x86_model model; |
144 |
|
|
|
145 |
dpavlin |
6 |
int halted; |
146 |
|
|
int interrupt_asserted; |
147 |
dpavlin |
4 |
|
148 |
dpavlin |
6 |
int cursegment; /* NOTE: 0..N_X86_SEGS-1 */ |
149 |
|
|
int seg_override; /* 0 or 1 */ |
150 |
dpavlin |
4 |
|
151 |
dpavlin |
6 |
uint64_t tsc; /* time stamp counter */ |
152 |
|
|
|
153 |
|
|
uint64_t gdtr; /* global descriptor table */ |
154 |
|
|
uint32_t gdtr_limit; |
155 |
|
|
uint64_t idtr; /* interrupt descriptor table */ |
156 |
|
|
uint32_t idtr_limit; |
157 |
|
|
|
158 |
|
|
uint16_t tr; /* task register */ |
159 |
|
|
uint64_t tr_base; |
160 |
|
|
uint32_t tr_limit; |
161 |
|
|
uint16_t ldtr; /* local descriptor table register */ |
162 |
|
|
uint64_t ldtr_base; |
163 |
|
|
uint32_t ldtr_limit; |
164 |
|
|
|
165 |
dpavlin |
4 |
uint64_t rflags; |
166 |
dpavlin |
6 |
uint64_t cr[N_X86_CREGS]; /* control registers */ |
167 |
|
|
uint64_t dr[N_X86_DREGS]; /* debug registers */ |
168 |
dpavlin |
4 |
|
169 |
dpavlin |
6 |
uint16_t s[N_X86_SEGS]; /* segment selectors */ |
170 |
|
|
struct descriptor_cache descr_cache[N_X86_SEGS]; |
171 |
|
|
|
172 |
|
|
uint64_t r[N_X86_REGS]; /* GPRs */ |
173 |
|
|
|
174 |
|
|
/* FPU: */ |
175 |
|
|
uint16_t fpu_sw; /* status word */ |
176 |
|
|
uint16_t fpu_cw; /* control word */ |
177 |
|
|
|
178 |
|
|
/* MSRs: */ |
179 |
|
|
uint64_t efer; |
180 |
dpavlin |
12 |
|
181 |
|
|
|
182 |
|
|
/* |
183 |
|
|
* Instruction translation cache: |
184 |
|
|
*/ |
185 |
|
|
|
186 |
|
|
/* cur_ic_page is a pointer to an array of X86_IC_ENTRIES_PER_PAGE |
187 |
|
|
instruction call entries. next_ic points to the next such |
188 |
|
|
call to be executed. */ |
189 |
|
|
struct x86_tc_physpage *cur_physpage; |
190 |
|
|
struct x86_instr_call *cur_ic_page; |
191 |
|
|
struct x86_instr_call *next_ic; |
192 |
|
|
|
193 |
|
|
|
194 |
|
|
/* |
195 |
|
|
* Virtual -> physical -> host address translation: |
196 |
|
|
* |
197 |
|
|
* host_load and host_store point to arrays of X86_N_VPH_ENTRIES |
198 |
|
|
* pointers (to host pages); phys_addr points to an array of |
199 |
|
|
* X86_N_VPH_ENTRIES uint32_t. |
200 |
|
|
*/ |
201 |
|
|
|
202 |
|
|
struct x86_vpg_tlb_entry vph_tlb_entry[X86_MAX_VPH_TLB_ENTRIES]; |
203 |
|
|
unsigned char *host_load[X86_N_VPH_ENTRIES]; |
204 |
|
|
unsigned char *host_store[X86_N_VPH_ENTRIES]; |
205 |
|
|
uint32_t phys_addr[X86_N_VPH_ENTRIES]; |
206 |
|
|
struct x86_tc_physpage *phys_page[X86_N_VPH_ENTRIES]; |
207 |
dpavlin |
18 |
|
208 |
|
|
uint32_t phystranslation[X86_N_VPH_ENTRIES/32]; |
209 |
dpavlin |
4 |
}; |
210 |
|
|
|
211 |
|
|
|
212 |
|
|
#define X86_FLAGS_CF (1) /* Carry Flag */ |
213 |
|
|
#define X86_FLAGS_PF (4) /* Parity Flag */ |
214 |
|
|
#define X86_FLAGS_AF (16) /* Adjust/AuxilaryCarry Flag */ |
215 |
|
|
#define X86_FLAGS_ZF (64) /* Zero Flag */ |
216 |
|
|
#define X86_FLAGS_SF (128) /* Sign Flag */ |
217 |
|
|
#define X86_FLAGS_TF (256) /* Trap Flag */ |
218 |
|
|
#define X86_FLAGS_IF (512) /* Interrupt Enable Flag */ |
219 |
|
|
#define X86_FLAGS_DF (1024) /* Direction Flag */ |
220 |
|
|
#define X86_FLAGS_OF (2048) /* Overflow Flag */ |
221 |
|
|
/* Bits 12 and 13 are I/O Privilege Level */ |
222 |
|
|
#define X86_FLAGS_NT (1<<14) /* Nested Task Flag */ |
223 |
|
|
#define X86_FLAGS_RF (1<<16) /* Resume Flag */ |
224 |
|
|
#define X86_FLAGS_VM (1<<17) /* VM86 Flag */ |
225 |
dpavlin |
6 |
#define X86_FLAGS_AC (1<<18) /* Alignment Check */ |
226 |
|
|
#define X86_FLAGS_VIF (1<<19) /* ? */ |
227 |
|
|
#define X86_FLAGS_VIP (1<<20) /* ? */ |
228 |
|
|
#define X86_FLAGS_ID (1<<21) /* CPUID present */ |
229 |
dpavlin |
4 |
|
230 |
dpavlin |
6 |
#define X86_CR0_PE 0x00000001 /* Protection Enable */ |
231 |
|
|
#define X86_CR0_MP 0x00000002 |
232 |
|
|
#define X86_CR0_EM 0x00000004 |
233 |
|
|
#define X86_CR0_TS 0x00000008 |
234 |
|
|
#define X86_CR0_ET 0x00000010 |
235 |
|
|
#define X86_CR0_NE 0x00000020 |
236 |
|
|
#define X86_CR0_WP 0x00010000 |
237 |
|
|
#define X86_CR0_AM 0x00040000 |
238 |
|
|
#define X86_CR0_NW 0x20000000 |
239 |
|
|
#define X86_CR0_CD 0x40000000 |
240 |
|
|
#define X86_CR0_PG 0x80000000 /* Paging Enable */ |
241 |
dpavlin |
4 |
|
242 |
dpavlin |
6 |
#define X86_CR4_OSXMEX 0x00000400 |
243 |
|
|
#define X86_CR4_OSFXSR 0x00000200 |
244 |
|
|
#define X86_CR4_PCE 0x00000100 |
245 |
|
|
#define X86_CR4_PGE 0x00000080 |
246 |
|
|
#define X86_CR4_MCE 0x00000040 |
247 |
|
|
#define X86_CR4_PAE 0x00000020 |
248 |
|
|
#define X86_CR4_PSE 0x00000010 |
249 |
|
|
#define X86_CR4_DE 0x00000008 |
250 |
|
|
#define X86_CR4_TSD 0x00000004 /* Time Stamp Disable */ |
251 |
|
|
#define X86_CR4_PVI 0x00000002 |
252 |
|
|
#define X86_CR4_VME 0x00000001 |
253 |
|
|
|
254 |
|
|
/* EFER bits: */ |
255 |
|
|
#define X86_EFER_FFXSR 0x00004000 |
256 |
|
|
#define X86_EFER_LMSLE 0x00002000 |
257 |
|
|
#define X86_EFER_NXE 0x00000800 |
258 |
|
|
#define X86_EFER_LMA 0x00000400 |
259 |
|
|
#define X86_EFER_LME 0x00000100 /* Long Mode (64-bit) */ |
260 |
|
|
#define X86_EFER_SCE 0x00000001 |
261 |
|
|
|
262 |
|
|
/* CPUID feature bits: */ |
263 |
|
|
#define X86_CPUID_ECX_ETPRD 0x00004000 |
264 |
|
|
#define X86_CPUID_ECX_CX16 0x00002000 /* cmpxchg16b */ |
265 |
|
|
#define X86_CPUID_ECX_CID 0x00000400 |
266 |
|
|
#define X86_CPUID_ECX_TM2 0x00000100 |
267 |
|
|
#define X86_CPUID_ECX_EST 0x00000080 |
268 |
|
|
#define X86_CPUID_ECX_DSCPL 0x00000010 |
269 |
|
|
#define X86_CPUID_ECX_MON 0x00000004 |
270 |
|
|
#define X86_CPUID_ECX_SSE3 0x00000001 |
271 |
|
|
#define X86_CPUID_EDX_PBE 0x80000000 /* pending break event */ |
272 |
|
|
#define X86_CPUID_EDX_IA64 0x40000000 |
273 |
|
|
#define X86_CPUID_EDX_TM1 0x20000000 /* thermal interrupt */ |
274 |
|
|
#define X86_CPUID_EDX_HTT 0x10000000 /* hyper threading */ |
275 |
|
|
#define X86_CPUID_EDX_SS 0x08000000 /* self-snoop */ |
276 |
|
|
#define X86_CPUID_EDX_SSE2 0x04000000 |
277 |
|
|
#define X86_CPUID_EDX_SSE 0x02000000 |
278 |
|
|
#define X86_CPUID_EDX_FXSR 0x01000000 |
279 |
|
|
#define X86_CPUID_EDX_MMX 0x00800000 |
280 |
|
|
#define X86_CPUID_EDX_ACPI 0x00400000 |
281 |
|
|
#define X86_CPUID_EDX_DTES 0x00200000 |
282 |
|
|
#define X86_CPUID_EDX_CLFL 0x00080000 |
283 |
|
|
#define X86_CPUID_EDX_PSN 0x00040000 |
284 |
|
|
#define X86_CPUID_EDX_PSE36 0x00020000 |
285 |
|
|
#define X86_CPUID_EDX_PAT 0x00010000 |
286 |
|
|
#define X86_CPUID_EDX_CMOV 0x00008000 |
287 |
|
|
#define X86_CPUID_EDX_MCA 0x00004000 |
288 |
|
|
#define X86_CPUID_EDX_PGE 0x00002000 /* global bit in PDE/PTE */ |
289 |
|
|
#define X86_CPUID_EDX_MTRR 0x00001000 |
290 |
|
|
#define X86_CPUID_EDX_SEP 0x00000800 /* sysenter/sysexit */ |
291 |
|
|
#define X86_CPUID_EDX_APIC 0x00000200 |
292 |
|
|
#define X86_CPUID_EDX_CX8 0x00000100 /* cmpxchg8b */ |
293 |
|
|
#define X86_CPUID_EDX_MCE 0x00000080 |
294 |
|
|
#define X86_CPUID_EDX_PAE 0x00000040 |
295 |
|
|
#define X86_CPUID_EDX_MSR 0x00000020 |
296 |
|
|
#define X86_CPUID_EDX_TSC 0x00000010 |
297 |
|
|
#define X86_CPUID_EDX_PSE 0x00000008 |
298 |
|
|
#define X86_CPUID_EDX_DE 0x00000004 |
299 |
|
|
#define X86_CPUID_EDX_VME 0x00000002 |
300 |
|
|
#define X86_CPUID_EDX_FPU 0x00000001 |
301 |
|
|
|
302 |
|
|
/* Extended CPUID flags: */ |
303 |
|
|
#define X86_CPUID_EXT_ECX_CR8D 0x00000010 |
304 |
|
|
#define X86_CPUID_EXT_ECX_CMP 0x00000002 |
305 |
|
|
#define X86_CPUID_EXT_ECX_AHF64 0x00000001 |
306 |
|
|
#define X86_CPUID_EXT_EDX_LM 0x20000000 /* AMD64 Long Mode */ |
307 |
|
|
#define X86_CPUID_EXT_EDX_FFXSR 0x02000000 |
308 |
|
|
/* TODO: Many bits are duplicated in the Extended CPUID bits! */ |
309 |
|
|
|
310 |
|
|
#define X86_IO_BASE 0x1000000000ULL |
311 |
|
|
|
312 |
|
|
/* Privilege level in the lowest 2 bits of a selector: */ |
313 |
|
|
#define X86_PL_MASK 0x0003 |
314 |
|
|
#define X86_RING0 0 |
315 |
|
|
#define X86_RING1 1 |
316 |
|
|
#define X86_RING2 2 |
317 |
|
|
#define X86_RING3 3 |
318 |
|
|
|
319 |
|
|
#define DESCR_TYPE_CODE 1 |
320 |
|
|
#define DESCR_TYPE_DATA 2 |
321 |
|
|
|
322 |
|
|
|
323 |
|
|
#define PROTECTED_MODE (cpu->cd.x86.cr[0] & X86_CR0_PE) |
324 |
|
|
#define REAL_MODE (!PROTECTED_MODE) |
325 |
|
|
|
326 |
dpavlin |
4 |
/* cpu_x86.c: */ |
327 |
dpavlin |
6 |
void reload_segment_descriptor(struct cpu *cpu, int segnr, int selector, |
328 |
|
|
uint64_t *curpcp); |
329 |
|
|
int x86_interrupt(struct cpu *cpu, int nr, int errcode); |
330 |
dpavlin |
4 |
int x86_memory_rw(struct cpu *cpu, struct memory *mem, uint64_t vaddr, |
331 |
|
|
unsigned char *data, size_t len, int writeflag, int cache_flags); |
332 |
|
|
int x86_cpu_family_init(struct cpu_family *); |
333 |
|
|
|
334 |
dpavlin |
14 |
/* memory_x86.c: */ |
335 |
|
|
int x86_translate_address(struct cpu *cpu, uint64_t vaddr, |
336 |
|
|
uint64_t *return_addr, int flags); |
337 |
dpavlin |
4 |
|
338 |
|
|
#endif /* CPU_X86_H */ |