1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2003 Peter Wemm. 5 * Copyright (c) 1991 Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department and William Jolitz of UUNET Technologies Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * Derived from hp300 version by Mike Hibler, this version by William 37 * Jolitz uses a recursive map [a pde points to the page directory] to 38 * map the page tables using the pagetables themselves. This is done to 39 * reduce the impact on kernel virtual memory for lots of sparse address 40 * space, and to reduce the cost of memory to each process. 41 */ 42 43 #ifdef __i386__ 44 #include <i386/pmap.h> 45 #else /* !__i386__ */ 46 47 #ifndef _MACHINE_PMAP_H_ 48 #define _MACHINE_PMAP_H_ 49 50 #include <machine/pte.h> 51 52 /* 53 * Define the PG_xx macros in terms of the bits on x86 PTEs. 54 */ 55 #define PG_V X86_PG_V 56 #define PG_RW X86_PG_RW 57 #define PG_U X86_PG_U 58 #define PG_NC_PWT X86_PG_NC_PWT 59 #define PG_NC_PCD X86_PG_NC_PCD 60 #define PG_A X86_PG_A 61 #define PG_M X86_PG_M 62 #define PG_PS X86_PG_PS 63 #define PG_PTE_PAT X86_PG_PTE_PAT 64 #define PG_G X86_PG_G 65 #define PG_AVAIL1 X86_PG_AVAIL1 66 #define PG_AVAIL2 X86_PG_AVAIL2 67 #define PG_AVAIL3 X86_PG_AVAIL3 68 #define PG_PDE_PAT X86_PG_PDE_PAT 69 #define PG_NX X86_PG_NX 70 #define PG_PDE_CACHE X86_PG_PDE_CACHE 71 #define PG_PTE_CACHE X86_PG_PTE_CACHE 72 73 /* Our various interpretations of the above */ 74 #define PG_W X86_PG_AVAIL3 /* "Wired" pseudoflag */ 75 #define PG_MANAGED X86_PG_AVAIL2 76 #define EPT_PG_EMUL_V X86_PG_AVAIL(52) 77 #define EPT_PG_EMUL_RW X86_PG_AVAIL(53) 78 #define PG_PROMOTED X86_PG_AVAIL(54) /* PDE only */ 79 80 /* 81 * Promotion to a 2MB (PDE) page mapping requires that the corresponding 4KB 82 * (PTE) page mappings have identical settings for the following fields: 83 */ 84 #define PG_PTE_PROMOTE (PG_NX | PG_MANAGED | PG_W | PG_G | PG_PTE_CACHE | \ 85 PG_M | PG_U | PG_RW | PG_V | PG_PKU_MASK) 86 87 /* 88 * undef the PG_xx macros that define bits in the regular x86 PTEs that 89 * have a different position in nested PTEs. This is done when compiling 90 * code that needs to be aware of the differences between regular x86 and 91 * nested PTEs. 92 * 93 * The appropriate bitmask will be calculated at runtime based on the pmap 94 * type. 95 */ 96 #ifdef AMD64_NPT_AWARE 97 #undef PG_AVAIL1 /* X86_PG_AVAIL1 aliases with EPT_PG_M */ 98 #undef PG_G 99 #undef PG_A 100 #undef PG_M 101 #undef PG_PDE_PAT 102 #undef PG_PDE_CACHE 103 #undef PG_PTE_PAT 104 #undef PG_PTE_CACHE 105 #undef PG_RW 106 #undef PG_V 107 #endif 108 109 /* 110 * Pte related macros. This is complicated by having to deal with 111 * the sign extension of the 48th bit. 112 */ 113 #define KV4ADDR(l4, l3, l2, l1) ( \ 114 ((unsigned long)-1 << 47) | \ 115 ((unsigned long)(l4) << PML4SHIFT) | \ 116 ((unsigned long)(l3) << PDPSHIFT) | \ 117 ((unsigned long)(l2) << PDRSHIFT) | \ 118 ((unsigned long)(l1) << PAGE_SHIFT)) 119 #define KV5ADDR(l5, l4, l3, l2, l1) ( \ 120 ((unsigned long)-1 << 56) | \ 121 ((unsigned long)(l5) << PML5SHIFT) | \ 122 ((unsigned long)(l4) << PML4SHIFT) | \ 123 ((unsigned long)(l3) << PDPSHIFT) | \ 124 ((unsigned long)(l2) << PDRSHIFT) | \ 125 ((unsigned long)(l1) << PAGE_SHIFT)) 126 127 #define UVADDR(l5, l4, l3, l2, l1) ( \ 128 ((unsigned long)(l5) << PML5SHIFT) | \ 129 ((unsigned long)(l4) << PML4SHIFT) | \ 130 ((unsigned long)(l3) << PDPSHIFT) | \ 131 ((unsigned long)(l2) << PDRSHIFT) | \ 132 ((unsigned long)(l1) << PAGE_SHIFT)) 133 134 /* 135 * Number of kernel PML4 slots. Can be anywhere from 1 to 64 or so, 136 * but setting it larger than NDMPML4E makes no sense. 137 * 138 * Each slot provides .5 TB of kernel virtual space. 139 */ 140 #define NKPML4E 4 141 142 /* 143 * Number of PML4 slots for the KASAN shadow map. It requires 1 byte of memory 144 * for every 8 bytes of the kernel address space. 145 */ 146 #define NKASANPML4E ((NKPML4E + 7) / 8) 147 148 /* 149 * Number of PML4 slots for the KMSAN shadow and origin maps. These are 150 * one-to-one with the kernel map. 151 */ 152 #define NKMSANSHADPML4E NKPML4E 153 #define NKMSANORIGPML4E NKPML4E 154 155 /* 156 * We use the same numbering of the page table pages for 5-level and 157 * 4-level paging structures. 158 */ 159 #define NUPML5E (NPML5EPG / 2) /* number of userland PML5 160 pages */ 161 #define NUPML4E (NUPML5E * NPML4EPG) /* number of userland PML4 162 pages */ 163 #define NUPDPE (NUPML4E * NPDPEPG) /* number of userland PDP 164 pages */ 165 #define NUPDE (NUPDPE * NPDEPG) /* number of userland PD 166 entries */ 167 #define NUP4ML4E (NPML4EPG / 2) 168 169 /* 170 * NDMPML4E is the maximum number of PML4 entries that will be 171 * used to implement the direct map. It must be a power of two, 172 * and should generally exceed NKPML4E. The maximum possible 173 * value is 64; using 128 will make the direct map intrude into 174 * the recursive page table map. 175 */ 176 #define NDMPML4E 8 177 178 /* 179 * These values control the layout of virtual memory. The starting address 180 * of the direct map, which is controlled by DMPML4I, must be a multiple of 181 * its size. (See the PHYS_TO_DMAP() and DMAP_TO_PHYS() macros.) 182 * 183 * Note: KPML4I is the index of the (single) level 4 page that maps 184 * the KVA that holds KERNBASE, while KPML4BASE is the index of the 185 * first level 4 page that maps VM_MIN_KERNEL_ADDRESS. If NKPML4E 186 * is 1, these are the same, otherwise KPML4BASE < KPML4I and extra 187 * level 4 PDEs are needed to map from VM_MIN_KERNEL_ADDRESS up to 188 * KERNBASE. 189 * 190 * (KPML4I combines with KPDPI to choose where KERNBASE starts. 191 * Or, in other words, KPML4I provides bits 39..47 of KERNBASE, 192 * and KPDPI provides bits 30..38.) 193 */ 194 #define PML4PML4I (NPML4EPG / 2) /* Index of recursive pml4 mapping */ 195 #define PML5PML5I (NPML5EPG / 2) /* Index of recursive pml5 mapping */ 196 197 #define KPML4BASE (NPML4EPG-NKPML4E) /* KVM at highest addresses */ 198 #define DMPML4I rounddown(KPML4BASE-NDMPML4E, NDMPML4E) /* Below KVM */ 199 200 #define KPML4I (NPML4EPG-1) 201 #define KPDPI (NPDPEPG-2) /* kernbase at -2GB */ 202 203 #define KASANPML4I (DMPML4I - NKASANPML4E) /* Below the direct map */ 204 205 #define KMSANSHADPML4I (KPML4BASE - NKMSANSHADPML4E) 206 #define KMSANORIGPML4I (DMPML4I - NKMSANORIGPML4E) 207 208 /* Large map: index of the first and max last pml4 entry */ 209 #define LMSPML4I (PML4PML4I + 1) 210 #define LMEPML4I (KASANPML4I - 1) 211 212 /* 213 * XXX doesn't really belong here I guess... 214 */ 215 #define ISA_HOLE_START 0xa0000 216 #define ISA_HOLE_LENGTH (0x100000-ISA_HOLE_START) 217 218 #define PMAP_PCID_NONE 0xffffffff 219 #define PMAP_PCID_KERN 0 220 #define PMAP_PCID_OVERMAX 0x1000 221 #define PMAP_PCID_OVERMAX_KERN 0x800 222 #define PMAP_PCID_USER_PT 0x800 223 224 #define PMAP_NO_CR3 0xffffffffffffffff 225 #define PMAP_UCR3_NOMASK 0xffffffffffffffff 226 227 #ifndef LOCORE 228 229 #include <sys/kassert.h> 230 #include <sys/queue.h> 231 #include <sys/_cpuset.h> 232 #include <sys/_lock.h> 233 #include <sys/_mutex.h> 234 #include <sys/_pctrie.h> 235 #include <machine/_pmap.h> 236 #include <sys/_pv_entry.h> 237 #include <sys/_rangeset.h> 238 #include <sys/_smr.h> 239 240 #include <vm/_vm_radix.h> 241 242 typedef u_int64_t pd_entry_t; 243 typedef u_int64_t pt_entry_t; 244 typedef u_int64_t pdp_entry_t; 245 typedef u_int64_t pml4_entry_t; 246 typedef u_int64_t pml5_entry_t; 247 248 /* 249 * Address of current address space page table maps and directories. 250 */ 251 #ifdef _KERNEL 252 #define addr_P4Tmap (KV4ADDR(PML4PML4I, 0, 0, 0)) 253 #define addr_P4Dmap (KV4ADDR(PML4PML4I, PML4PML4I, 0, 0)) 254 #define addr_P4DPmap (KV4ADDR(PML4PML4I, PML4PML4I, PML4PML4I, 0)) 255 #define addr_P4ML4map (KV4ADDR(PML4PML4I, PML4PML4I, PML4PML4I, PML4PML4I)) 256 #define addr_P4ML4pml4e (addr_PML4map + (PML4PML4I * sizeof(pml4_entry_t))) 257 #define P4Tmap ((pt_entry_t *)(addr_P4Tmap)) 258 #define P4Dmap ((pd_entry_t *)(addr_P4Dmap)) 259 260 #define addr_P5Tmap (KV5ADDR(PML5PML5I, 0, 0, 0, 0)) 261 #define addr_P5Dmap (KV5ADDR(PML5PML5I, PML5PML5I, 0, 0, 0)) 262 #define addr_P5DPmap (KV5ADDR(PML5PML5I, PML5PML5I, PML5PML5I, 0, 0)) 263 #define addr_P5ML4map (KV5ADDR(PML5PML5I, PML5PML5I, PML5PML5I, PML5PML5I, 0)) 264 #define addr_P5ML5map \ 265 (KVADDR(PML5PML5I, PML5PML5I, PML5PML5I, PML5PML5I, PML5PML5I)) 266 #define addr_P5ML5pml5e (addr_P5ML5map + (PML5PML5I * sizeof(pml5_entry_t))) 267 #define P5Tmap ((pt_entry_t *)(addr_P5Tmap)) 268 #define P5Dmap ((pd_entry_t *)(addr_P5Dmap)) 269 270 extern int nkpt; /* Initial number of kernel page tables */ 271 extern u_int64_t KPML4phys; /* physical address of kernel level 4 */ 272 extern u_int64_t KPML5phys; /* physical address of kernel level 5 */ 273 274 /* 275 * virtual address to page table entry and 276 * to physical address. 277 * Note: these work recursively, thus vtopte of a pte will give 278 * the corresponding pde that in turn maps it. 279 */ 280 pt_entry_t *vtopte(vm_offset_t); 281 #define vtophys(va) pmap_kextract(((vm_offset_t) (va))) 282 283 #define pte_load_store(ptep, pte) atomic_swap_long(ptep, pte) 284 #define pte_load_clear(ptep) atomic_swap_long(ptep, 0) 285 #define pte_store(ptep, pte) do { \ 286 *(u_long *)(ptep) = (u_long)(pte); \ 287 } while (0) 288 #define pte_clear(ptep) pte_store(ptep, 0) 289 290 #define pde_store(pdep, pde) pte_store(pdep, pde) 291 292 extern pt_entry_t pg_nx; 293 294 #endif /* _KERNEL */ 295 296 /* 297 * Pmap stuff 298 */ 299 300 /* 301 * Locks 302 * (p) PV list lock 303 */ 304 struct md_page { 305 TAILQ_HEAD(, pv_entry) pv_list; /* (p) */ 306 int pv_gen; /* (p) */ 307 int pat_mode; 308 }; 309 310 enum pmap_type { 311 PT_X86, /* regular x86 page tables */ 312 PT_EPT, /* Intel's nested page tables */ 313 PT_RVI, /* AMD's nested page tables */ 314 }; 315 316 /* 317 * The kernel virtual address (KVA) of the level 4 page table page is always 318 * within the direct map (DMAP) region. 319 */ 320 struct pmap { 321 struct mtx pm_mtx; 322 pml4_entry_t *pm_pmltop; /* KVA of top level page table */ 323 pml4_entry_t *pm_pmltopu; /* KVA of user top page table */ 324 uint64_t pm_cr3; 325 uint64_t pm_ucr3; 326 TAILQ_HEAD(,pv_chunk) pm_pvchunk; /* list of mappings in pmap */ 327 cpuset_t pm_active; /* active on cpus */ 328 enum pmap_type pm_type; /* regular or nested tables */ 329 struct pmap_statistics pm_stats; /* pmap statistics */ 330 struct vm_radix pm_root; /* spare page table pages */ 331 long pm_eptgen; /* EPT pmap generation id */ 332 smr_t pm_eptsmr; 333 int pm_flags; 334 struct pmap_pcid *pm_pcidp; 335 struct rangeset pm_pkru; 336 }; 337 338 /* flags */ 339 #define PMAP_NESTED_IPIMASK 0xff 340 #define PMAP_PDE_SUPERPAGE (1 << 8) /* supports 2MB superpages */ 341 #define PMAP_EMULATE_AD_BITS (1 << 9) /* needs A/D bits emulation */ 342 #define PMAP_SUPPORTS_EXEC_ONLY (1 << 10) /* execute only mappings ok */ 343 344 typedef struct pmap *pmap_t; 345 346 #ifdef _KERNEL 347 extern struct pmap kernel_pmap_store; 348 #define kernel_pmap (&kernel_pmap_store) 349 350 #define PMAP_LOCK(pmap) mtx_lock(&(pmap)->pm_mtx) 351 #define PMAP_LOCK_ASSERT(pmap, type) \ 352 mtx_assert(&(pmap)->pm_mtx, (type)) 353 #define PMAP_LOCK_DESTROY(pmap) mtx_destroy(&(pmap)->pm_mtx) 354 #define PMAP_LOCK_INIT(pmap) mtx_init(&(pmap)->pm_mtx, "pmap", \ 355 NULL, MTX_DEF | MTX_DUPOK) 356 #define PMAP_LOCKED(pmap) mtx_owned(&(pmap)->pm_mtx) 357 #define PMAP_MTX(pmap) (&(pmap)->pm_mtx) 358 #define PMAP_TRYLOCK(pmap) mtx_trylock(&(pmap)->pm_mtx) 359 #define PMAP_UNLOCK(pmap) mtx_unlock(&(pmap)->pm_mtx) 360 361 int pmap_pinit_type(pmap_t pmap, enum pmap_type pm_type, int flags); 362 int pmap_emulate_accessed_dirty(pmap_t pmap, vm_offset_t va, int ftype); 363 364 extern caddr_t CADDR1; 365 extern pt_entry_t *CMAP1; 366 extern vm_offset_t virtual_avail; 367 extern vm_offset_t virtual_end; 368 extern vm_paddr_t dmaplimit; 369 extern int pmap_pcid_enabled; 370 extern int invpcid_works; 371 extern int invlpgb_works; 372 extern int invlpgb_maxcnt; 373 extern int pmap_pcid_invlpg_workaround; 374 extern int pmap_pcid_invlpg_workaround_uena; 375 376 #define pmap_page_get_memattr(m) ((vm_memattr_t)(m)->md.pat_mode) 377 #define pmap_page_is_write_mapped(m) (((m)->a.flags & PGA_WRITEABLE) != 0) 378 #define pmap_unmapbios(va, sz) pmap_unmapdev((va), (sz)) 379 380 #define pmap_vm_page_alloc_check(m) \ 381 KASSERT(m->phys_addr < kernphys || \ 382 m->phys_addr >= kernphys + (vm_offset_t)&_end - KERNSTART, \ 383 ("allocating kernel page %p pa %#lx kernphys %#lx end %p", \ 384 m, m->phys_addr, kernphys, &_end)); 385 386 struct thread; 387 388 void pmap_activate_boot(pmap_t pmap); 389 void pmap_activate_sw(struct thread *); 390 void pmap_allow_2m_x_ept_recalculate(void); 391 void pmap_bootstrap(vm_paddr_t *); 392 int pmap_cache_bits(pmap_t pmap, int mode, bool is_pde); 393 int pmap_change_attr(vm_offset_t, vm_size_t, int); 394 int pmap_change_prot(vm_offset_t, vm_size_t, vm_prot_t); 395 void pmap_demote_DMAP(vm_paddr_t base, vm_size_t len, bool invalidate); 396 void pmap_flush_cache_range(vm_offset_t, vm_offset_t); 397 void pmap_flush_cache_phys_range(vm_paddr_t, vm_paddr_t, vm_memattr_t); 398 void pmap_init_pat(void); 399 void pmap_kenter(vm_offset_t va, vm_paddr_t pa); 400 void *pmap_kenter_temporary(vm_paddr_t pa, int i); 401 vm_paddr_t pmap_kextract(vm_offset_t); 402 void pmap_kremove(vm_offset_t); 403 int pmap_large_map(vm_paddr_t, vm_size_t, void **, vm_memattr_t); 404 void pmap_large_map_wb(void *sva, vm_size_t len); 405 void pmap_large_unmap(void *sva, vm_size_t len); 406 void *pmap_mapbios(vm_paddr_t, vm_size_t); 407 void *pmap_mapdev(vm_paddr_t, vm_size_t); 408 void *pmap_mapdev_attr(vm_paddr_t, vm_size_t, int); 409 void *pmap_mapdev_pciecfg(vm_paddr_t pa, vm_size_t size); 410 bool pmap_not_in_di(void); 411 bool pmap_page_is_mapped(vm_page_t m); 412 void pmap_page_set_memattr(vm_page_t m, vm_memattr_t ma); 413 void pmap_page_set_memattr_noflush(vm_page_t m, vm_memattr_t ma); 414 void pmap_pinit_pml4(vm_page_t); 415 void pmap_pinit_pml5(vm_page_t); 416 bool pmap_ps_enabled(pmap_t pmap); 417 void pmap_unmapdev(void *, vm_size_t); 418 void pmap_invalidate_page(pmap_t, vm_offset_t); 419 void pmap_invalidate_range(pmap_t, vm_offset_t, vm_offset_t); 420 void pmap_invalidate_all(pmap_t); 421 void pmap_invalidate_cache(void); 422 void pmap_invalidate_cache_pages(vm_page_t *pages, int count); 423 void pmap_invalidate_cache_range(vm_offset_t sva, vm_offset_t eva); 424 void pmap_force_invalidate_cache_range(vm_offset_t sva, vm_offset_t eva); 425 void pmap_get_mapping(pmap_t pmap, vm_offset_t va, uint64_t *ptr, int *num); 426 bool pmap_map_io_transient(vm_page_t *, vm_offset_t *, int, bool); 427 void pmap_unmap_io_transient(vm_page_t *, vm_offset_t *, int, bool); 428 void pmap_map_delete(pmap_t, vm_offset_t, vm_offset_t); 429 void pmap_pti_add_kva(vm_offset_t sva, vm_offset_t eva, bool exec); 430 void pmap_pti_remove_kva(vm_offset_t sva, vm_offset_t eva); 431 void pmap_pti_pcid_invalidate(uint64_t ucr3, uint64_t kcr3); 432 void pmap_pti_pcid_invlpg(uint64_t ucr3, uint64_t kcr3, vm_offset_t va); 433 void pmap_pti_pcid_invlrng(uint64_t ucr3, uint64_t kcr3, vm_offset_t sva, 434 vm_offset_t eva); 435 int pmap_pkru_clear(pmap_t pmap, vm_offset_t sva, vm_offset_t eva); 436 int pmap_pkru_set(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, 437 u_int keyidx, int flags); 438 void pmap_thread_init_invl_gen(struct thread *td); 439 int pmap_vmspace_copy(pmap_t dst_pmap, pmap_t src_pmap); 440 void pmap_page_array_startup(long count); 441 vm_page_t pmap_page_alloc_below_4g(bool zeroed); 442 443 #if defined(KASAN) || defined(KMSAN) 444 void pmap_san_enter(vm_offset_t); 445 #endif 446 447 /* 448 * Returns a pointer to a set of CPUs on which the pmap is currently active. 449 * Note that the set can be modified without any mutual exclusion, so a copy 450 * must be made if a stable value is required. 451 */ 452 static __inline volatile cpuset_t * 453 pmap_invalidate_cpu_mask(pmap_t pmap) 454 { 455 return (&pmap->pm_active); 456 } 457 458 #if defined(_SYS_PCPU_H_) && defined(_MACHINE_CPUFUNC_H_) 459 /* 460 * It seems that AlderLake+ small cores have some microarchitectural 461 * bug, which results in the INVLPG instruction failing to flush all 462 * global TLB entries when PCID is enabled. Work around it for now, 463 * by doing global invalidation on small cores instead of INVLPG. 464 */ 465 static __inline void 466 pmap_invlpg(pmap_t pmap, vm_offset_t va) 467 { 468 if (pmap == kernel_pmap && PCPU_GET(pcid_invlpg_workaround)) { 469 struct invpcid_descr d = { 0 }; 470 471 invpcid(&d, INVPCID_CTXGLOB); 472 } else { 473 invlpg(va); 474 } 475 } 476 #endif /* sys/pcpu.h && machine/cpufunc.h */ 477 478 #if defined(_SYS_PCPU_H_) 479 /* Return pcid for the pmap pmap on current cpu */ 480 static __inline uint32_t 481 pmap_get_pcid(pmap_t pmap) 482 { 483 struct pmap_pcid *pcidp; 484 485 MPASS(pmap_pcid_enabled); 486 pcidp = zpcpu_get(pmap->pm_pcidp); 487 return (pcidp->pm_pcid); 488 } 489 #endif /* sys/pcpu.h */ 490 491 /* 492 * Invalidation request. PCPU pc_smp_tlb_op uses u_int instead of the 493 * enum to avoid both namespace and ABI issues (with enums). 494 */ 495 enum invl_op_codes { 496 INVL_OP_TLB = 1, 497 INVL_OP_TLB_INVPCID = 2, 498 INVL_OP_TLB_INVPCID_PTI = 3, 499 INVL_OP_TLB_PCID = 4, 500 INVL_OP_PGRNG = 5, 501 INVL_OP_PGRNG_INVPCID = 6, 502 INVL_OP_PGRNG_PCID = 7, 503 INVL_OP_PG = 8, 504 INVL_OP_PG_INVPCID = 9, 505 INVL_OP_PG_PCID = 10, 506 INVL_OP_CACHE = 11, 507 }; 508 509 typedef void (*smp_invl_local_cb_t)(struct pmap *, vm_offset_t addr1, 510 vm_offset_t addr2); 511 typedef void (*smp_targeted_tlb_shootdown_t)(pmap_t, vm_offset_t, vm_offset_t, 512 smp_invl_local_cb_t, enum invl_op_codes); 513 514 void smp_targeted_tlb_shootdown_native(pmap_t, vm_offset_t, vm_offset_t, 515 smp_invl_local_cb_t, enum invl_op_codes); 516 extern smp_targeted_tlb_shootdown_t smp_targeted_tlb_shootdown; 517 518 #endif /* _KERNEL */ 519 520 /* Return various clipped indexes for a given VA */ 521 static __inline vm_pindex_t 522 pmap_pte_index(vm_offset_t va) 523 { 524 525 return ((va >> PAGE_SHIFT) & ((1ul << NPTEPGSHIFT) - 1)); 526 } 527 528 static __inline vm_pindex_t 529 pmap_pde_index(vm_offset_t va) 530 { 531 532 return ((va >> PDRSHIFT) & ((1ul << NPDEPGSHIFT) - 1)); 533 } 534 535 static __inline vm_pindex_t 536 pmap_pdpe_index(vm_offset_t va) 537 { 538 539 return ((va >> PDPSHIFT) & ((1ul << NPDPEPGSHIFT) - 1)); 540 } 541 542 static __inline vm_pindex_t 543 pmap_pml4e_index(vm_offset_t va) 544 { 545 546 return ((va >> PML4SHIFT) & ((1ul << NPML4EPGSHIFT) - 1)); 547 } 548 549 static __inline vm_pindex_t 550 pmap_pml5e_index(vm_offset_t va) 551 { 552 553 return ((va >> PML5SHIFT) & ((1ul << NPML5EPGSHIFT) - 1)); 554 } 555 556 #endif /* !LOCORE */ 557 558 #endif /* !_MACHINE_PMAP_H_ */ 559 560 #endif /* __i386__ */ 561