cpu.h revision 1.125
1 /* $NetBSD: cpu.h,v 1.125 2020/05/02 16:44:35 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)cpu.h 5.4 (Berkeley) 5/9/91 35 */ 36 37 #ifndef _X86_CPU_H_ 38 #define _X86_CPU_H_ 39 40 #if defined(_KERNEL) || defined(_STANDALONE) 41 #include <sys/types.h> 42 #else 43 #include <stdint.h> 44 #include <stdbool.h> 45 #endif /* _KERNEL || _STANDALONE */ 46 47 #if defined(_KERNEL) || defined(_KMEMUSER) 48 #if defined(_KERNEL_OPT) 49 #include "opt_xen.h" 50 #include "opt_svs.h" 51 #ifdef i386 52 #include "opt_user_ldt.h" 53 #endif 54 #endif 55 56 /* 57 * Definitions unique to x86 cpu support. 58 */ 59 #include <machine/frame.h> 60 #include <machine/pte.h> 61 #include <machine/segments.h> 62 #include <machine/tss.h> 63 #include <machine/intrdefs.h> 64 65 #include <x86/cacheinfo.h> 66 67 #include <sys/cpu_data.h> 68 #include <sys/evcnt.h> 69 #include <sys/device_if.h> /* for device_t */ 70 71 #ifdef XEN 72 #include <xen/include/public/xen.h> 73 #include <xen/include/public/event_channel.h> 74 #include <sys/mutex.h> 75 #endif /* XEN */ 76 77 struct intrsource; 78 struct pmap; 79 struct kcpuset; 80 81 #ifdef __x86_64__ 82 #define i386tss x86_64_tss 83 #endif 84 85 #define NIOPORTS 1024 /* # of ports we allow to be mapped */ 86 #define IOMAPSIZE (NIOPORTS / 8) /* I/O bitmap size in bytes */ 87 88 struct cpu_tss { 89 #ifdef i386 90 struct i386tss dblflt_tss; 91 struct i386tss ddbipi_tss; 92 #endif 93 struct i386tss tss; 94 uint8_t iomap[IOMAPSIZE]; 95 } __packed; 96 97 /* 98 * Arguments to hardclock, softclock and statclock 99 * encapsulate the previous machine state in an opaque 100 * clockframe; for now, use generic intrframe. 101 */ 102 struct clockframe { 103 struct intrframe cf_if; 104 }; 105 106 /* 107 * a bunch of this belongs in cpuvar.h; move it later.. 108 */ 109 110 struct cpu_info { 111 struct cpu_data ci_data; /* MI per-cpu data */ 112 device_t ci_dev; /* pointer to our device */ 113 struct cpu_info *ci_self; /* self-pointer */ 114 115 /* 116 * Private members. 117 */ 118 struct pmap *ci_pmap; /* current pmap */ 119 int ci_want_pmapload; /* pmap_load() is needed */ 120 volatile int ci_tlbstate; /* one of TLBSTATE_ states. see below */ 121 #define TLBSTATE_VALID 0 /* all user tlbs are valid */ 122 #define TLBSTATE_LAZY 1 /* tlbs are valid but won't be kept uptodate */ 123 #define TLBSTATE_STALE 2 /* we might have stale user tlbs */ 124 int ci_curldt; /* current LDT descriptor */ 125 int ci_nintrhand; /* number of H/W interrupt handlers */ 126 uint64_t ci_scratch; 127 uintptr_t ci_pmap_data[128 / sizeof(uintptr_t)]; 128 struct kcpuset *ci_tlb_cpuset; 129 130 int ci_kfpu_spl; 131 132 struct intrsource *ci_isources[MAX_INTR_SOURCES]; 133 134 volatile int ci_mtx_count; /* Negative count of spin mutexes */ 135 volatile int ci_mtx_oldspl; /* Old SPL at this ci_idepth */ 136 137 /* The following must be aligned for cmpxchg8b. */ 138 struct { 139 uint32_t ipending; 140 int ilevel; 141 uint32_t imasked; 142 } ci_istate __aligned(8); 143 #define ci_ipending ci_istate.ipending 144 #define ci_ilevel ci_istate.ilevel 145 #define ci_imasked ci_istate.imasked 146 int ci_idepth; 147 void * ci_intrstack; 148 uint32_t ci_imask[NIPL]; 149 uint32_t ci_iunmask[NIPL]; 150 151 uint32_t ci_signature; /* X86 cpuid type (cpuid.1.%eax) */ 152 uint32_t ci_vendor[4]; /* vendor string */ 153 uint32_t ci_max_cpuid; /* cpuid.0:%eax */ 154 uint32_t ci_max_ext_cpuid; /* cpuid.80000000:%eax */ 155 volatile uint32_t ci_lapic_counter; 156 157 uint32_t ci_feat_val[8]; /* X86 CPUID feature bits */ 158 /* [0] basic features cpuid.1:%edx 159 * [1] basic features cpuid.1:%ecx (CPUID2_xxx bits) 160 * [2] extended features cpuid:80000001:%edx 161 * [3] extended features cpuid:80000001:%ecx 162 * [4] VIA padlock features 163 * [5] structured extended features cpuid.7:%ebx 164 * [6] structured extended features cpuid.7:%ecx 165 * [7] structured extended features cpuid.7:%edx 166 */ 167 168 const struct cpu_functions *ci_func; /* start/stop functions */ 169 struct trapframe *ci_ddb_regs; 170 171 u_int ci_cflush_lsize; /* CLFLUSH insn line size */ 172 struct x86_cache_info ci_cinfo[CAI_COUNT]; 173 174 device_t ci_frequency; /* Frequency scaling technology */ 175 device_t ci_padlock; /* VIA PadLock private storage */ 176 device_t ci_temperature; /* Intel coretemp(4) or equivalent */ 177 device_t ci_vm; /* Virtual machine guest driver */ 178 179 /* 180 * Segmentation-related data. 181 */ 182 union descriptor *ci_gdt; 183 struct cpu_tss *ci_tss; /* Per-cpu TSSes; shared among LWPs */ 184 int ci_tss_sel; /* TSS selector of this cpu */ 185 186 /* 187 * The following two are actually region_descriptors, 188 * but that would pollute the namespace. 189 */ 190 uintptr_t ci_suspend_gdt; 191 uint16_t ci_suspend_gdt_padding; 192 uintptr_t ci_suspend_idt; 193 uint16_t ci_suspend_idt_padding; 194 195 uint16_t ci_suspend_tr; 196 uint16_t ci_suspend_ldt; 197 uintptr_t ci_suspend_fs; 198 uintptr_t ci_suspend_gs; 199 uintptr_t ci_suspend_kgs; 200 uintptr_t ci_suspend_efer; 201 uintptr_t ci_suspend_reg[12]; 202 uintptr_t ci_suspend_cr0; 203 uintptr_t ci_suspend_cr2; 204 uintptr_t ci_suspend_cr3; 205 uintptr_t ci_suspend_cr4; 206 uintptr_t ci_suspend_cr8; 207 208 /* 209 * The following must be in their own cache line, as they are 210 * stored to regularly by remote CPUs; when they were mixed with 211 * other fields we observed frequent cache misses. 212 */ 213 int ci_want_resched __aligned(64); 214 uint32_t ci_ipis; /* interprocessor interrupts pending */ 215 216 /* 217 * These are largely static, and will be frequently fetched by other 218 * CPUs. For that reason they get their own cache line, too. 219 */ 220 uint32_t ci_flags __aligned(64);/* general flags */ 221 uint32_t ci_acpiid; /* our ACPI/MADT ID */ 222 uint32_t ci_initapicid; /* our initial APIC ID */ 223 uint32_t ci_vcpuid; /* our CPU id for hypervisor */ 224 cpuid_t ci_cpuid; /* our CPU ID */ 225 struct cpu_info *ci_next; /* next cpu */ 226 227 /* 228 * This is stored frequently, and is fetched by remote CPUs. 229 */ 230 struct lwp *ci_curlwp __aligned(64);/* general flags */ 231 struct lwp *ci_onproc; /* current user LWP / kthread */ 232 233 /* Here ends the cachline-aligned sections. */ 234 int ci_padout __aligned(64); 235 236 #ifndef __HAVE_DIRECT_MAP 237 #define VPAGE_SRC 0 238 #define VPAGE_DST 1 239 #define VPAGE_ZER 2 240 #define VPAGE_PTP 3 241 #define VPAGE_MAX 4 242 vaddr_t vpage[VPAGE_MAX]; 243 pt_entry_t *vpage_pte[VPAGE_MAX]; 244 #endif 245 246 #ifdef PAE 247 uint32_t ci_pae_l3_pdirpa; /* PA of L3 PD */ 248 pd_entry_t * ci_pae_l3_pdir; /* VA pointer to L3 PD */ 249 #endif 250 251 #ifdef SVS 252 pd_entry_t * ci_svs_updir; 253 paddr_t ci_svs_updirpa; 254 int ci_svs_ldt_sel; 255 kmutex_t ci_svs_mtx; 256 pd_entry_t * ci_svs_rsp0_pte; 257 vaddr_t ci_svs_rsp0; 258 vaddr_t ci_svs_ursp0; 259 vaddr_t ci_svs_krsp0; 260 vaddr_t ci_svs_utls; 261 #endif 262 263 #ifndef XENPV 264 struct evcnt ci_ipi_events[X86_NIPI]; 265 #else 266 struct evcnt ci_ipi_events[XEN_NIPIS]; 267 #endif 268 #ifdef XEN 269 volatile struct vcpu_info *ci_vcpu; /* for XEN */ 270 u_long ci_evtmask[NR_EVENT_CHANNELS]; /* events allowed on this CPU */ 271 evtchn_port_t ci_ipi_evtchn; 272 #if defined(XENPV) 273 #if defined(PAE) || defined(__x86_64__) 274 /* Currently active user PGD (can't use rcr3() with Xen) */ 275 pd_entry_t * ci_kpm_pdir; /* per-cpu PMD (va) */ 276 paddr_t ci_kpm_pdirpa; /* per-cpu PMD (pa) */ 277 kmutex_t ci_kpm_mtx; 278 #endif /* defined(PAE) || defined(__x86_64__) */ 279 280 #if defined(__x86_64__) 281 /* per-cpu version of normal_pdes */ 282 pd_entry_t * ci_normal_pdes[3]; /* Ok to hardcode. only for x86_64 && XENPV */ 283 paddr_t ci_xen_current_user_pgd; 284 #endif /* defined(__x86_64__) */ 285 286 size_t ci_xpq_idx; 287 #endif /* XENPV */ 288 289 /* Xen raw system time at which we last ran hardclock. */ 290 uint64_t ci_xen_hardclock_systime_ns; 291 292 /* 293 * Last TSC-adjusted local Xen system time we observed. Used 294 * to detect whether the Xen clock has gone backwards. 295 */ 296 uint64_t ci_xen_last_systime_ns; 297 298 /* 299 * Distance in nanoseconds from the local view of system time 300 * to the global view of system time, if the local time is 301 * behind the global time. 302 */ 303 uint64_t ci_xen_systime_ns_skew; 304 305 /* 306 * Clockframe for timer interrupt handler. 307 * Saved at entry via event callback. 308 */ 309 vaddr_t ci_xen_clockf_pc; /* RIP at last event interrupt */ 310 bool ci_xen_clockf_usermode; /* Was the guest in usermode ? */ 311 312 /* Event counters for various pathologies that might happen. */ 313 struct evcnt ci_xen_cpu_tsc_backwards_evcnt; 314 struct evcnt ci_xen_tsc_delta_negative_evcnt; 315 struct evcnt ci_xen_raw_systime_wraparound_evcnt; 316 struct evcnt ci_xen_raw_systime_backwards_evcnt; 317 struct evcnt ci_xen_systime_backwards_hardclock_evcnt; 318 struct evcnt ci_xen_missed_hardclock_evcnt; 319 #endif /* XEN */ 320 }; 321 322 #if defined(XEN) && !defined(XENPV) 323 __CTASSERT(XEN_NIPIS <= X86_NIPI); 324 #endif 325 326 /* 327 * Macros to handle (some) trapframe registers for common x86 code. 328 */ 329 #ifdef __x86_64__ 330 #define X86_TF_RAX(tf) tf->tf_rax 331 #define X86_TF_RDX(tf) tf->tf_rdx 332 #define X86_TF_RSP(tf) tf->tf_rsp 333 #define X86_TF_RIP(tf) tf->tf_rip 334 #define X86_TF_RFLAGS(tf) tf->tf_rflags 335 #else 336 #define X86_TF_RAX(tf) tf->tf_eax 337 #define X86_TF_RDX(tf) tf->tf_edx 338 #define X86_TF_RSP(tf) tf->tf_esp 339 #define X86_TF_RIP(tf) tf->tf_eip 340 #define X86_TF_RFLAGS(tf) tf->tf_eflags 341 #endif 342 343 /* 344 * Processor flag notes: The "primary" CPU has certain MI-defined 345 * roles (mostly relating to hardclock handling); we distinguish 346 * between the processor which booted us, and the processor currently 347 * holding the "primary" role just to give us the flexibility later to 348 * change primaries should we be sufficiently twisted. 349 */ 350 351 #define CPUF_BSP 0x0001 /* CPU is the original BSP */ 352 #define CPUF_AP 0x0002 /* CPU is an AP */ 353 #define CPUF_SP 0x0004 /* CPU is only processor */ 354 #define CPUF_PRIMARY 0x0008 /* CPU is active primary processor */ 355 356 #define CPUF_SYNCTSC 0x0800 /* Synchronize TSC */ 357 #define CPUF_PRESENT 0x1000 /* CPU is present */ 358 #define CPUF_RUNNING 0x2000 /* CPU is running */ 359 #define CPUF_PAUSE 0x4000 /* CPU is paused in DDB */ 360 #define CPUF_GO 0x8000 /* CPU should start running */ 361 362 #endif /* _KERNEL || __KMEMUSER */ 363 364 #ifdef _KERNEL 365 /* 366 * We statically allocate the CPU info for the primary CPU (or, 367 * the only CPU on uniprocessors), and the primary CPU is the 368 * first CPU on the CPU info list. 369 */ 370 extern struct cpu_info cpu_info_primary; 371 extern struct cpu_info *cpu_info_list; 372 373 #define CPU_INFO_ITERATOR int __unused 374 #define CPU_INFO_FOREACH(cii, ci) ci = cpu_info_list; \ 375 ci != NULL; ci = ci->ci_next 376 377 #define CPU_STARTUP(_ci, _target) ((_ci)->ci_func->start(_ci, _target)) 378 #define CPU_STOP(_ci) ((_ci)->ci_func->stop(_ci)) 379 #define CPU_START_CLEANUP(_ci) ((_ci)->ci_func->cleanup(_ci)) 380 381 #if !defined(__GNUC__) || defined(_MODULE) 382 /* For non-GCC and modules */ 383 struct cpu_info *x86_curcpu(void); 384 # ifdef __GNUC__ 385 lwp_t *x86_curlwp(void) __attribute__ ((const)); 386 # else 387 lwp_t *x86_curlwp(void); 388 # endif 389 #endif 390 391 #define cpu_number() (cpu_index(curcpu())) 392 393 #define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY) 394 395 #define aston(l) ((l)->l_md.md_astpending = 1) 396 397 void cpu_boot_secondary_processors(void); 398 void cpu_init_idle_lwps(void); 399 void cpu_init_msrs(struct cpu_info *, bool); 400 void cpu_load_pmap(struct pmap *, struct pmap *); 401 void cpu_broadcast_halt(void); 402 void cpu_kick(struct cpu_info *); 403 404 void cpu_pcpuarea_init(struct cpu_info *); 405 void cpu_svs_init(struct cpu_info *); 406 void cpu_speculation_init(struct cpu_info *); 407 408 #define curcpu() x86_curcpu() 409 #define curlwp x86_curlwp() 410 #define curpcb ((struct pcb *)lwp_getpcb(curlwp)) 411 412 /* 413 * Give a profiling tick to the current process when the user profiling 414 * buffer pages are invalid. On the i386, request an ast to send us 415 * through trap(), marking the proc as needing a profiling tick. 416 */ 417 extern void cpu_need_proftick(struct lwp *l); 418 419 /* 420 * Notify the LWP l that it has a signal pending, process as soon as 421 * possible. 422 */ 423 extern void cpu_signotify(struct lwp *); 424 425 /* 426 * We need a machine-independent name for this. 427 */ 428 extern void (*delay_func)(unsigned int); 429 struct timeval; 430 431 #ifndef __HIDE_DELAY 432 #define DELAY(x) (*delay_func)(x) 433 #define delay(x) (*delay_func)(x) 434 #endif 435 436 extern int biosbasemem; 437 extern int biosextmem; 438 extern int cputype; 439 extern int cpuid_level; 440 extern int cpu_class; 441 extern char cpu_brand_string[]; 442 extern int use_pae; 443 444 #ifdef __i386__ 445 #define i386_fpu_present 1 446 int npx586bug1(int, int); 447 extern int i386_fpu_fdivbug; 448 extern int i386_use_fxsave; 449 extern int i386_has_sse; 450 extern int i386_has_sse2; 451 #else 452 #define i386_fpu_present 1 453 #define i386_fpu_fdivbug 0 454 #define i386_use_fxsave 1 455 #define i386_has_sse 1 456 #define i386_has_sse2 1 457 #endif 458 459 extern int x86_fpu_save; 460 #define FPU_SAVE_FSAVE 0 461 #define FPU_SAVE_FXSAVE 1 462 #define FPU_SAVE_XSAVE 2 463 #define FPU_SAVE_XSAVEOPT 3 464 extern unsigned int x86_fpu_save_size; 465 extern uint64_t x86_xsave_features; 466 extern size_t x86_xsave_offsets[]; 467 extern size_t x86_xsave_sizes[]; 468 extern uint32_t x86_fpu_mxcsr_mask; 469 470 extern void (*x86_cpu_idle)(void); 471 #define cpu_idle() (*x86_cpu_idle)() 472 473 /* machdep.c */ 474 #ifdef i386 475 void cpu_set_tss_gates(struct cpu_info *); 476 #endif 477 void cpu_reset(void); 478 479 /* longrun.c */ 480 u_int tmx86_get_longrun_mode(void); 481 void tmx86_get_longrun_status(u_int *, u_int *, u_int *); 482 void tmx86_init_longrun(void); 483 484 /* identcpu.c */ 485 void cpu_probe(struct cpu_info *); 486 void cpu_identify(struct cpu_info *); 487 void identify_hypervisor(void); 488 489 /* identcpu_subr.c */ 490 uint64_t cpu_tsc_freq_cpuid(struct cpu_info *); 491 492 typedef enum vm_guest { 493 VM_GUEST_NO = 0, 494 VM_GUEST_VM, 495 VM_GUEST_XENPV, 496 VM_GUEST_XENPVH, 497 VM_GUEST_XENHVM, 498 VM_GUEST_XENPVHVM, 499 VM_GUEST_HV, 500 VM_GUEST_VMWARE, 501 VM_GUEST_KVM, 502 VM_LAST 503 } vm_guest_t; 504 extern vm_guest_t vm_guest; 505 506 static __inline bool __unused 507 vm_guest_is_xenpv(void) 508 { 509 switch(vm_guest) { 510 case VM_GUEST_XENPV: 511 case VM_GUEST_XENPVH: 512 case VM_GUEST_XENPVHVM: 513 return true; 514 default: 515 return false; 516 } 517 } 518 519 static __inline bool __unused 520 vm_guest_is_xenpvh_or_pvhvm(void) 521 { 522 switch(vm_guest) { 523 case VM_GUEST_XENPVH: 524 case VM_GUEST_XENPVHVM: 525 return true; 526 default: 527 return false; 528 } 529 } 530 531 /* cpu_topology.c */ 532 void x86_cpu_topology(struct cpu_info *); 533 534 /* locore.s */ 535 struct region_descriptor; 536 void lgdt(struct region_descriptor *); 537 #ifdef XENPV 538 void lgdt_finish(void); 539 #endif 540 541 struct pcb; 542 void savectx(struct pcb *); 543 void lwp_trampoline(void); 544 #ifdef XEN 545 void xen_startrtclock(void); 546 void xen_delay(unsigned int); 547 void xen_initclocks(void); 548 void xen_cpu_initclocks(void); 549 void xen_suspendclocks(struct cpu_info *); 550 void xen_resumeclocks(struct cpu_info *); 551 #endif /* XEN */ 552 /* clock.c */ 553 void initrtclock(u_long); 554 void startrtclock(void); 555 void i8254_delay(unsigned int); 556 void i8254_microtime(struct timeval *); 557 void i8254_initclocks(void); 558 unsigned int gettick(void); 559 extern void (*x86_delay)(unsigned int); 560 561 /* cpu.c */ 562 void cpu_probe_features(struct cpu_info *); 563 564 /* vm_machdep.c */ 565 void cpu_proc_fork(struct proc *, struct proc *); 566 paddr_t kvtop(void *); 567 568 #ifdef USER_LDT 569 /* sys_machdep.h */ 570 int x86_get_ldt(struct lwp *, void *, register_t *); 571 int x86_set_ldt(struct lwp *, void *, register_t *); 572 #endif 573 574 /* isa_machdep.c */ 575 void isa_defaultirq(void); 576 int isa_nmi(void); 577 578 /* consinit.c */ 579 void kgdb_port_init(void); 580 581 /* bus_machdep.c */ 582 void x86_bus_space_init(void); 583 void x86_bus_space_mallocok(void); 584 585 #endif /* _KERNEL */ 586 587 #if defined(_KERNEL) || defined(_KMEMUSER) 588 #include <machine/psl.h> /* Must be after struct cpu_info declaration */ 589 #endif /* _KERNEL || __KMEMUSER */ 590 591 /* 592 * CTL_MACHDEP definitions. 593 */ 594 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 595 #define CPU_BIOSBASEMEM 2 /* int: bios-reported base mem (K) */ 596 #define CPU_BIOSEXTMEM 3 /* int: bios-reported ext. mem (K) */ 597 /* CPU_NKPDE 4 obsolete: int: number of kernel PDEs */ 598 #define CPU_BOOTED_KERNEL 5 /* string: booted kernel name */ 599 #define CPU_DISKINFO 6 /* struct disklist *: 600 * disk geometry information */ 601 #define CPU_FPU_PRESENT 7 /* int: FPU is present */ 602 #define CPU_OSFXSR 8 /* int: OS uses FXSAVE/FXRSTOR */ 603 #define CPU_SSE 9 /* int: OS/CPU supports SSE */ 604 #define CPU_SSE2 10 /* int: OS/CPU supports SSE2 */ 605 #define CPU_TMLR_MODE 11 /* int: longrun mode 606 * 0: minimum frequency 607 * 1: economy 608 * 2: performance 609 * 3: maximum frequency 610 */ 611 #define CPU_TMLR_FREQUENCY 12 /* int: current frequency */ 612 #define CPU_TMLR_VOLTAGE 13 /* int: current voltage */ 613 #define CPU_TMLR_PERCENTAGE 14 /* int: current clock percentage */ 614 #define CPU_FPU_SAVE 15 /* int: FPU Instructions layout 615 * to use this, CPU_OSFXSR must be true 616 * 0: FSAVE 617 * 1: FXSAVE 618 * 2: XSAVE 619 * 3: XSAVEOPT 620 */ 621 #define CPU_FPU_SAVE_SIZE 16 /* int: FPU Instruction layout size */ 622 #define CPU_XSAVE_FEATURES 17 /* quad: XSAVE features */ 623 624 /* 625 * Structure for CPU_DISKINFO sysctl call. 626 * XXX this should be somewhere else. 627 */ 628 #define MAX_BIOSDISKS 16 629 630 struct disklist { 631 int dl_nbiosdisks; /* number of bios disks */ 632 int dl_unused; 633 struct biosdisk_info { 634 int bi_dev; /* BIOS device # (0x80 ..) */ 635 int bi_cyl; /* cylinders on disk */ 636 int bi_head; /* heads per track */ 637 int bi_sec; /* sectors per track */ 638 uint64_t bi_lbasecs; /* total sec. (iff ext13) */ 639 #define BIFLAG_INVALID 0x01 640 #define BIFLAG_EXTINT13 0x02 641 int bi_flags; 642 int bi_unused; 643 } dl_biosdisks[MAX_BIOSDISKS]; 644 645 int dl_nnativedisks; /* number of native disks */ 646 struct nativedisk_info { 647 char ni_devname[16]; /* native device name */ 648 int ni_nmatches; /* # of matches w/ BIOS */ 649 int ni_biosmatches[MAX_BIOSDISKS]; /* indices in dl_biosdisks */ 650 } dl_nativedisks[1]; /* actually longer */ 651 }; 652 #endif /* !_X86_CPU_H_ */ 653
Indexes created Wed Sep 24 05:09:52 GMT 2025