1221828Sgrehan/*- 2221828Sgrehan * Copyright (c) 2011 NetApp, Inc. 3221828Sgrehan * All rights reserved. 4221828Sgrehan * 5221828Sgrehan * Redistribution and use in source and binary forms, with or without 6221828Sgrehan * modification, are permitted provided that the following conditions 7221828Sgrehan * are met: 8221828Sgrehan * 1. Redistributions of source code must retain the above copyright 9221828Sgrehan * notice, this list of conditions and the following disclaimer. 10221828Sgrehan * 2. Redistributions in binary form must reproduce the above copyright 11221828Sgrehan * notice, this list of conditions and the following disclaimer in the 12221828Sgrehan * documentation and/or other materials provided with the distribution. 13221828Sgrehan * 14221828Sgrehan * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 15221828Sgrehan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16221828Sgrehan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17221828Sgrehan * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 18221828Sgrehan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19221828Sgrehan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20221828Sgrehan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21221828Sgrehan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22221828Sgrehan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23221828Sgrehan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24221828Sgrehan * SUCH DAMAGE. 25221828Sgrehan * 26221828Sgrehan * $FreeBSD: stable/11/lib/libvmmapi/vmmapi.c 348201 2019-05-23 21:23:18Z rgrimes $ 27221828Sgrehan */ 28221828Sgrehan 29221828Sgrehan#include <sys/cdefs.h> 30221828Sgrehan__FBSDID("$FreeBSD: stable/11/lib/libvmmapi/vmmapi.c 348201 2019-05-23 21:23:18Z rgrimes $"); 31221828Sgrehan 32266933Sneel#include <sys/param.h> 33221828Sgrehan#include <sys/sysctl.h> 34221828Sgrehan#include <sys/ioctl.h> 35221828Sgrehan#include <sys/mman.h> 36266708Sneel#include <sys/_iovec.h> 37266933Sneel#include <sys/cpuset.h> 38221828Sgrehan 39269008Sneel#include <x86/segments.h> 40221828Sgrehan#include <machine/specialreg.h> 41221828Sgrehan 42282558Sneel#include <errno.h> 43221828Sgrehan#include <stdio.h> 44221828Sgrehan#include <stdlib.h> 45221828Sgrehan#include <assert.h> 46221828Sgrehan#include <string.h> 47221828Sgrehan#include <fcntl.h> 48221828Sgrehan#include <unistd.h> 49221828Sgrehan 50256176Sneel#include <libutil.h> 51256176Sneel 52221828Sgrehan#include <machine/vmm.h> 53221828Sgrehan#include <machine/vmm_dev.h> 54221828Sgrehan 55221828Sgrehan#include "vmmapi.h" 56221828Sgrehan 57256176Sneel#define MB (1024 * 1024UL) 58248477Sneel#define GB (1024 * 1024 * 1024UL) 59248477Sneel 60284539Sneel/* 61284539Sneel * Size of the guard region before and after the virtual address space 62284539Sneel * mapping the guest physical memory. This must be a multiple of the 63284539Sneel * superpage size for performance reasons. 64284539Sneel */ 65284539Sneel#define VM_MMAP_GUARD_SIZE (4 * MB) 66284539Sneel 67284539Sneel#define PROT_RW (PROT_READ | PROT_WRITE) 68284539Sneel#define PROT_ALL (PROT_READ | PROT_WRITE | PROT_EXEC) 69284539Sneel 70221828Sgrehanstruct vmctx { 71221828Sgrehan int fd; 72248477Sneel uint32_t lowmem_limit; 73265951Sneel int memflags; 74248477Sneel size_t lowmem; 75248477Sneel size_t highmem; 76284539Sneel char *baseaddr; 77221828Sgrehan char *name; 78221828Sgrehan}; 79221828Sgrehan 80221828Sgrehan#define CREATE(x) sysctlbyname("hw.vmm.create", NULL, NULL, (x), strlen((x))) 81221828Sgrehan#define DESTROY(x) sysctlbyname("hw.vmm.destroy", NULL, NULL, (x), strlen((x))) 82221828Sgrehan 83221828Sgrehanstatic int 84221828Sgrehanvm_device_open(const char *name) 85221828Sgrehan{ 86336161Saraujo int fd, len; 87336161Saraujo char *vmfile; 88221828Sgrehan 89221828Sgrehan len = strlen("/dev/vmm/") + strlen(name) + 1; 90221828Sgrehan vmfile = malloc(len); 91221828Sgrehan assert(vmfile != NULL); 92221828Sgrehan snprintf(vmfile, len, "/dev/vmm/%s", name); 93221828Sgrehan 94336161Saraujo /* Open the device file */ 95336161Saraujo fd = open(vmfile, O_RDWR, 0); 96221828Sgrehan 97221828Sgrehan free(vmfile); 98336161Saraujo return (fd); 99221828Sgrehan} 100221828Sgrehan 101221828Sgrehanint 102221828Sgrehanvm_create(const char *name) 103221828Sgrehan{ 104221828Sgrehan 105221828Sgrehan return (CREATE((char *)name)); 106221828Sgrehan} 107221828Sgrehan 108221828Sgrehanstruct vmctx * 109221828Sgrehanvm_open(const char *name) 110221828Sgrehan{ 111221828Sgrehan struct vmctx *vm; 112221828Sgrehan 113221828Sgrehan vm = malloc(sizeof(struct vmctx) + strlen(name) + 1); 114221828Sgrehan assert(vm != NULL); 115221828Sgrehan 116221828Sgrehan vm->fd = -1; 117265951Sneel vm->memflags = 0; 118248477Sneel vm->lowmem_limit = 3 * GB; 119221828Sgrehan vm->name = (char *)(vm + 1); 120221828Sgrehan strcpy(vm->name, name); 121221828Sgrehan 122221828Sgrehan if ((vm->fd = vm_device_open(vm->name)) < 0) 123221828Sgrehan goto err; 124221828Sgrehan 125221828Sgrehan return (vm); 126221828Sgrehanerr: 127221828Sgrehan vm_destroy(vm); 128221828Sgrehan return (NULL); 129221828Sgrehan} 130221828Sgrehan 131221828Sgrehanvoid 132221828Sgrehanvm_destroy(struct vmctx *vm) 133221828Sgrehan{ 134221828Sgrehan assert(vm != NULL); 135221828Sgrehan 136221828Sgrehan if (vm->fd >= 0) 137221828Sgrehan close(vm->fd); 138241178Sneel DESTROY(vm->name); 139241178Sneel 140221828Sgrehan free(vm); 141221828Sgrehan} 142221828Sgrehan 143221828Sgrehanint 144256176Sneelvm_parse_memsize(const char *optarg, size_t *ret_memsize) 145256176Sneel{ 146256176Sneel char *endptr; 147256176Sneel size_t optval; 148256176Sneel int error; 149256176Sneel 150256176Sneel optval = strtoul(optarg, &endptr, 0); 151256176Sneel if (*optarg != '\0' && *endptr == '\0') { 152256176Sneel /* 153256176Sneel * For the sake of backward compatibility if the memory size 154256176Sneel * specified on the command line is less than a megabyte then 155256176Sneel * it is interpreted as being in units of MB. 156256176Sneel */ 157256176Sneel if (optval < MB) 158256176Sneel optval *= MB; 159256176Sneel *ret_memsize = optval; 160256176Sneel error = 0; 161256176Sneel } else 162256176Sneel error = expand_number(optarg, ret_memsize); 163256176Sneel 164256176Sneel return (error); 165256176Sneel} 166256176Sneel 167248477Sneeluint32_t 168248477Sneelvm_get_lowmem_limit(struct vmctx *ctx) 169221828Sgrehan{ 170248477Sneel 171248477Sneel return (ctx->lowmem_limit); 172248477Sneel} 173248477Sneel 174248477Sneelvoid 175248477Sneelvm_set_lowmem_limit(struct vmctx *ctx, uint32_t limit) 176248477Sneel{ 177248477Sneel 178248477Sneel ctx->lowmem_limit = limit; 179248477Sneel} 180248477Sneel 181265951Sneelvoid 182265951Sneelvm_set_memflags(struct vmctx *ctx, int flags) 183265951Sneel{ 184265951Sneel 185265951Sneel ctx->memflags = flags; 186265951Sneel} 187265951Sneel 188284539Sneelint 189284539Sneelvm_get_memflags(struct vmctx *ctx) 190284539Sneel{ 191284539Sneel 192284539Sneel return (ctx->memflags); 193284539Sneel} 194284539Sneel 195284539Sneel/* 196284539Sneel * Map segment 'segid' starting at 'off' into guest address range [gpa,gpa+len). 197284539Sneel */ 198284539Sneelint 199284539Sneelvm_mmap_memseg(struct vmctx *ctx, vm_paddr_t gpa, int segid, vm_ooffset_t off, 200284539Sneel size_t len, int prot) 201284539Sneel{ 202284539Sneel struct vm_memmap memmap; 203284539Sneel int error, flags; 204284539Sneel 205284539Sneel memmap.gpa = gpa; 206284539Sneel memmap.segid = segid; 207284539Sneel memmap.segoff = off; 208284539Sneel memmap.len = len; 209284539Sneel memmap.prot = prot; 210284539Sneel memmap.flags = 0; 211284539Sneel 212284539Sneel if (ctx->memflags & VM_MEM_F_WIRED) 213284539Sneel memmap.flags |= VM_MEMMAP_F_WIRED; 214284539Sneel 215284539Sneel /* 216284539Sneel * If this mapping already exists then don't create it again. This 217284539Sneel * is the common case for SYSMEM mappings created by bhyveload(8). 218284539Sneel */ 219284539Sneel error = vm_mmap_getnext(ctx, &gpa, &segid, &off, &len, &prot, &flags); 220284539Sneel if (error == 0 && gpa == memmap.gpa) { 221284539Sneel if (segid != memmap.segid || off != memmap.segoff || 222284539Sneel prot != memmap.prot || flags != memmap.flags) { 223284539Sneel errno = EEXIST; 224284539Sneel return (-1); 225284539Sneel } else { 226284539Sneel return (0); 227284539Sneel } 228284539Sneel } 229284539Sneel 230284539Sneel error = ioctl(ctx->fd, VM_MMAP_MEMSEG, &memmap); 231284539Sneel return (error); 232284539Sneel} 233284539Sneel 234284539Sneelint 235284539Sneelvm_mmap_getnext(struct vmctx *ctx, vm_paddr_t *gpa, int *segid, 236284539Sneel vm_ooffset_t *segoff, size_t *len, int *prot, int *flags) 237284539Sneel{ 238284539Sneel struct vm_memmap memmap; 239284539Sneel int error; 240284539Sneel 241284539Sneel bzero(&memmap, sizeof(struct vm_memmap)); 242284539Sneel memmap.gpa = *gpa; 243284539Sneel error = ioctl(ctx->fd, VM_MMAP_GETNEXT, &memmap); 244284539Sneel if (error == 0) { 245284539Sneel *gpa = memmap.gpa; 246284539Sneel *segid = memmap.segid; 247284539Sneel *segoff = memmap.segoff; 248284539Sneel *len = memmap.len; 249284539Sneel *prot = memmap.prot; 250284539Sneel *flags = memmap.flags; 251284539Sneel } 252284539Sneel return (error); 253284539Sneel} 254284539Sneel 255284539Sneel/* 256284539Sneel * Return 0 if the segments are identical and non-zero otherwise. 257284539Sneel * 258284539Sneel * This is slightly complicated by the fact that only device memory segments 259284539Sneel * are named. 260284539Sneel */ 261248477Sneelstatic int 262284539Sneelcmpseg(size_t len, const char *str, size_t len2, const char *str2) 263248477Sneel{ 264221828Sgrehan 265284539Sneel if (len == len2) { 266284539Sneel if ((!str && !str2) || (str && str2 && !strcmp(str, str2))) 267284539Sneel return (0); 268284539Sneel } 269284539Sneel return (-1); 270284539Sneel} 271284539Sneel 272284539Sneelstatic int 273284539Sneelvm_alloc_memseg(struct vmctx *ctx, int segid, size_t len, const char *name) 274284539Sneel{ 275284539Sneel struct vm_memseg memseg; 276284539Sneel size_t n; 277284539Sneel int error; 278284539Sneel 279221828Sgrehan /* 280284539Sneel * If the memory segment has already been created then just return. 281284539Sneel * This is the usual case for the SYSMEM segment created by userspace 282284539Sneel * loaders like bhyveload(8). 283221828Sgrehan */ 284284539Sneel error = vm_get_memseg(ctx, segid, &memseg.len, memseg.name, 285284539Sneel sizeof(memseg.name)); 286284539Sneel if (error) 287284539Sneel return (error); 288284539Sneel 289284539Sneel if (memseg.len != 0) { 290284539Sneel if (cmpseg(len, name, memseg.len, VM_MEMSEG_NAME(&memseg))) { 291284539Sneel errno = EINVAL; 292284539Sneel return (-1); 293284539Sneel } else { 294284539Sneel return (0); 295284539Sneel } 296221828Sgrehan } 297284539Sneel 298284539Sneel bzero(&memseg, sizeof(struct vm_memseg)); 299284539Sneel memseg.segid = segid; 300284539Sneel memseg.len = len; 301284539Sneel if (name != NULL) { 302284539Sneel n = strlcpy(memseg.name, name, sizeof(memseg.name)); 303284539Sneel if (n >= sizeof(memseg.name)) { 304284539Sneel errno = ENAMETOOLONG; 305284539Sneel return (-1); 306284539Sneel } 307284539Sneel } 308284539Sneel 309284539Sneel error = ioctl(ctx->fd, VM_ALLOC_MEMSEG, &memseg); 310221828Sgrehan return (error); 311221828Sgrehan} 312221828Sgrehan 313248477Sneelint 314284539Sneelvm_get_memseg(struct vmctx *ctx, int segid, size_t *lenp, char *namebuf, 315284539Sneel size_t bufsize) 316221828Sgrehan{ 317284539Sneel struct vm_memseg memseg; 318284539Sneel size_t n; 319248477Sneel int error; 320221828Sgrehan 321284539Sneel memseg.segid = segid; 322284539Sneel error = ioctl(ctx->fd, VM_GET_MEMSEG, &memseg); 323284539Sneel if (error == 0) { 324284539Sneel *lenp = memseg.len; 325284539Sneel n = strlcpy(namebuf, memseg.name, bufsize); 326284539Sneel if (n >= bufsize) { 327284539Sneel errno = ENAMETOOLONG; 328284539Sneel error = -1; 329284539Sneel } 330284539Sneel } 331284539Sneel return (error); 332284539Sneel} 333248477Sneel 334284539Sneelstatic int 335284539Sneelsetup_memory_segment(struct vmctx *ctx, vm_paddr_t gpa, size_t len, char *base) 336284539Sneel{ 337284539Sneel char *ptr; 338284539Sneel int error, flags; 339284539Sneel 340284539Sneel /* Map 'len' bytes starting at 'gpa' in the guest address space */ 341284539Sneel error = vm_mmap_memseg(ctx, gpa, VM_SYSMEM, gpa, len, PROT_ALL); 342284539Sneel if (error) 343284539Sneel return (error); 344284539Sneel 345284539Sneel flags = MAP_SHARED | MAP_FIXED; 346284539Sneel if ((ctx->memflags & VM_MEM_F_INCORE) == 0) 347284539Sneel flags |= MAP_NOCORE; 348284539Sneel 349284539Sneel /* mmap into the process address space on the host */ 350284539Sneel ptr = mmap(base + gpa, len, PROT_RW, flags, ctx->fd, gpa); 351284539Sneel if (ptr == MAP_FAILED) 352284539Sneel return (-1); 353284539Sneel 354284539Sneel return (0); 355284539Sneel} 356284539Sneel 357284539Sneelint 358284539Sneelvm_setup_memory(struct vmctx *ctx, size_t memsize, enum vm_mmap_style vms) 359284539Sneel{ 360284539Sneel size_t objsize, len; 361284539Sneel vm_paddr_t gpa; 362284539Sneel char *baseaddr, *ptr; 363340534Sjhb int error; 364284539Sneel 365284539Sneel assert(vms == VM_MMAP_ALL); 366284539Sneel 367248477Sneel /* 368248477Sneel * If 'memsize' cannot fit entirely in the 'lowmem' segment then 369248477Sneel * create another 'highmem' segment above 4GB for the remainder. 370248477Sneel */ 371248477Sneel if (memsize > ctx->lowmem_limit) { 372248477Sneel ctx->lowmem = ctx->lowmem_limit; 373284539Sneel ctx->highmem = memsize - ctx->lowmem_limit; 374284539Sneel objsize = 4*GB + ctx->highmem; 375248477Sneel } else { 376248477Sneel ctx->lowmem = memsize; 377248477Sneel ctx->highmem = 0; 378284539Sneel objsize = ctx->lowmem; 379248477Sneel } 380248477Sneel 381284539Sneel error = vm_alloc_memseg(ctx, VM_SYSMEM, objsize, NULL); 382284539Sneel if (error) 383284539Sneel return (error); 384284539Sneel 385284539Sneel /* 386284539Sneel * Stake out a contiguous region covering the guest physical memory 387284539Sneel * and the adjoining guard regions. 388284539Sneel */ 389284539Sneel len = VM_MMAP_GUARD_SIZE + objsize + VM_MMAP_GUARD_SIZE; 390340534Sjhb ptr = mmap(NULL, len, PROT_NONE, MAP_GUARD | MAP_ALIGNED_SUPER, -1, 0); 391284539Sneel if (ptr == MAP_FAILED) 392284539Sneel return (-1); 393284539Sneel 394284539Sneel baseaddr = ptr + VM_MMAP_GUARD_SIZE; 395284539Sneel if (ctx->highmem > 0) { 396284539Sneel gpa = 4*GB; 397284539Sneel len = ctx->highmem; 398284539Sneel error = setup_memory_segment(ctx, gpa, len, baseaddr); 399248477Sneel if (error) 400248477Sneel return (error); 401248477Sneel } 402248477Sneel 403284539Sneel if (ctx->lowmem > 0) { 404284539Sneel gpa = 0; 405284539Sneel len = ctx->lowmem; 406284539Sneel error = setup_memory_segment(ctx, gpa, len, baseaddr); 407248477Sneel if (error) 408248477Sneel return (error); 409248477Sneel } 410248477Sneel 411284539Sneel ctx->baseaddr = baseaddr; 412284539Sneel 413248477Sneel return (0); 414221828Sgrehan} 415221828Sgrehan 416284688Sneel/* 417284688Sneel * Returns a non-NULL pointer if [gaddr, gaddr+len) is entirely contained in 418284688Sneel * the lowmem or highmem regions. 419284688Sneel * 420284688Sneel * In particular return NULL if [gaddr, gaddr+len) falls in guest MMIO region. 421284688Sneel * The instruction emulation code depends on this behavior. 422284688Sneel */ 423248477Sneelvoid * 424248477Sneelvm_map_gpa(struct vmctx *ctx, vm_paddr_t gaddr, size_t len) 425248477Sneel{ 426248477Sneel 427284688Sneel if (ctx->lowmem > 0) { 428309647Sglebius if (gaddr < ctx->lowmem && len <= ctx->lowmem && 429309647Sglebius gaddr + len <= ctx->lowmem) 430284688Sneel return (ctx->baseaddr + gaddr); 431284688Sneel } 432248477Sneel 433284688Sneel if (ctx->highmem > 0) { 434309647Sglebius if (gaddr >= 4*GB) { 435309647Sglebius if (gaddr < 4*GB + ctx->highmem && 436309647Sglebius len <= ctx->highmem && 437309647Sglebius gaddr + len <= 4*GB + ctx->highmem) 438309647Sglebius return (ctx->baseaddr + gaddr); 439309647Sglebius } 440284688Sneel } 441284688Sneel 442284688Sneel return (NULL); 443248477Sneel} 444248477Sneel 445267811Sneelsize_t 446267811Sneelvm_get_lowmem_size(struct vmctx *ctx) 447267811Sneel{ 448267811Sneel 449267811Sneel return (ctx->lowmem); 450267811Sneel} 451267811Sneel 452267811Sneelsize_t 453267811Sneelvm_get_highmem_size(struct vmctx *ctx) 454267811Sneel{ 455267811Sneel 456267811Sneel return (ctx->highmem); 457267811Sneel} 458267811Sneel 459284539Sneelvoid * 460284539Sneelvm_create_devmem(struct vmctx *ctx, int segid, const char *name, size_t len) 461284539Sneel{ 462284539Sneel char pathname[MAXPATHLEN]; 463284539Sneel size_t len2; 464284539Sneel char *base, *ptr; 465284539Sneel int fd, error, flags; 466284539Sneel 467284539Sneel fd = -1; 468284539Sneel ptr = MAP_FAILED; 469284539Sneel if (name == NULL || strlen(name) == 0) { 470284539Sneel errno = EINVAL; 471284539Sneel goto done; 472284539Sneel } 473284539Sneel 474284539Sneel error = vm_alloc_memseg(ctx, segid, len, name); 475284539Sneel if (error) 476284539Sneel goto done; 477284539Sneel 478285218Sneel strlcpy(pathname, "/dev/vmm.io/", sizeof(pathname)); 479284539Sneel strlcat(pathname, ctx->name, sizeof(pathname)); 480284539Sneel strlcat(pathname, ".", sizeof(pathname)); 481284539Sneel strlcat(pathname, name, sizeof(pathname)); 482284539Sneel 483284539Sneel fd = open(pathname, O_RDWR); 484284539Sneel if (fd < 0) 485284539Sneel goto done; 486284539Sneel 487284539Sneel /* 488284539Sneel * Stake out a contiguous region covering the device memory and the 489284539Sneel * adjoining guard regions. 490284539Sneel */ 491284539Sneel len2 = VM_MMAP_GUARD_SIZE + len + VM_MMAP_GUARD_SIZE; 492340534Sjhb base = mmap(NULL, len2, PROT_NONE, MAP_GUARD | MAP_ALIGNED_SUPER, -1, 493340534Sjhb 0); 494284539Sneel if (base == MAP_FAILED) 495284539Sneel goto done; 496284539Sneel 497284539Sneel flags = MAP_SHARED | MAP_FIXED; 498284539Sneel if ((ctx->memflags & VM_MEM_F_INCORE) == 0) 499284539Sneel flags |= MAP_NOCORE; 500284539Sneel 501284539Sneel /* mmap the devmem region in the host address space */ 502284539Sneel ptr = mmap(base + VM_MMAP_GUARD_SIZE, len, PROT_RW, flags, fd, 0); 503284539Sneeldone: 504284539Sneel if (fd >= 0) 505284539Sneel close(fd); 506284539Sneel return (ptr); 507284539Sneel} 508284539Sneel 509221828Sgrehanint 510221828Sgrehanvm_set_desc(struct vmctx *ctx, int vcpu, int reg, 511221828Sgrehan uint64_t base, uint32_t limit, uint32_t access) 512221828Sgrehan{ 513221828Sgrehan int error; 514221828Sgrehan struct vm_seg_desc vmsegdesc; 515221828Sgrehan 516221828Sgrehan bzero(&vmsegdesc, sizeof(vmsegdesc)); 517221828Sgrehan vmsegdesc.cpuid = vcpu; 518221828Sgrehan vmsegdesc.regnum = reg; 519221828Sgrehan vmsegdesc.desc.base = base; 520221828Sgrehan vmsegdesc.desc.limit = limit; 521221828Sgrehan vmsegdesc.desc.access = access; 522221828Sgrehan 523221828Sgrehan error = ioctl(ctx->fd, VM_SET_SEGMENT_DESCRIPTOR, &vmsegdesc); 524221828Sgrehan return (error); 525221828Sgrehan} 526221828Sgrehan 527221828Sgrehanint 528221828Sgrehanvm_get_desc(struct vmctx *ctx, int vcpu, int reg, 529221828Sgrehan uint64_t *base, uint32_t *limit, uint32_t *access) 530221828Sgrehan{ 531221828Sgrehan int error; 532221828Sgrehan struct vm_seg_desc vmsegdesc; 533221828Sgrehan 534221828Sgrehan bzero(&vmsegdesc, sizeof(vmsegdesc)); 535221828Sgrehan vmsegdesc.cpuid = vcpu; 536221828Sgrehan vmsegdesc.regnum = reg; 537221828Sgrehan 538221828Sgrehan error = ioctl(ctx->fd, VM_GET_SEGMENT_DESCRIPTOR, &vmsegdesc); 539221828Sgrehan if (error == 0) { 540221828Sgrehan *base = vmsegdesc.desc.base; 541221828Sgrehan *limit = vmsegdesc.desc.limit; 542221828Sgrehan *access = vmsegdesc.desc.access; 543221828Sgrehan } 544221828Sgrehan return (error); 545221828Sgrehan} 546221828Sgrehan 547221828Sgrehanint 548269008Sneelvm_get_seg_desc(struct vmctx *ctx, int vcpu, int reg, struct seg_desc *seg_desc) 549269008Sneel{ 550269008Sneel int error; 551269008Sneel 552269008Sneel error = vm_get_desc(ctx, vcpu, reg, &seg_desc->base, &seg_desc->limit, 553269008Sneel &seg_desc->access); 554269008Sneel return (error); 555269008Sneel} 556269008Sneel 557269008Sneelint 558221828Sgrehanvm_set_register(struct vmctx *ctx, int vcpu, int reg, uint64_t val) 559221828Sgrehan{ 560221828Sgrehan int error; 561221828Sgrehan struct vm_register vmreg; 562221828Sgrehan 563221828Sgrehan bzero(&vmreg, sizeof(vmreg)); 564221828Sgrehan vmreg.cpuid = vcpu; 565221828Sgrehan vmreg.regnum = reg; 566221828Sgrehan vmreg.regval = val; 567221828Sgrehan 568221828Sgrehan error = ioctl(ctx->fd, VM_SET_REGISTER, &vmreg); 569221828Sgrehan return (error); 570221828Sgrehan} 571221828Sgrehan 572221828Sgrehanint 573221828Sgrehanvm_get_register(struct vmctx *ctx, int vcpu, int reg, uint64_t *ret_val) 574221828Sgrehan{ 575221828Sgrehan int error; 576221828Sgrehan struct vm_register vmreg; 577221828Sgrehan 578221828Sgrehan bzero(&vmreg, sizeof(vmreg)); 579221828Sgrehan vmreg.cpuid = vcpu; 580221828Sgrehan vmreg.regnum = reg; 581221828Sgrehan 582221828Sgrehan error = ioctl(ctx->fd, VM_GET_REGISTER, &vmreg); 583221828Sgrehan *ret_val = vmreg.regval; 584221828Sgrehan return (error); 585221828Sgrehan} 586221828Sgrehan 587221828Sgrehanint 588277310Sneelvm_run(struct vmctx *ctx, int vcpu, struct vm_exit *vmexit) 589221828Sgrehan{ 590221828Sgrehan int error; 591221828Sgrehan struct vm_run vmrun; 592221828Sgrehan 593221828Sgrehan bzero(&vmrun, sizeof(vmrun)); 594221828Sgrehan vmrun.cpuid = vcpu; 595221828Sgrehan 596221828Sgrehan error = ioctl(ctx->fd, VM_RUN, &vmrun); 597221828Sgrehan bcopy(&vmrun.vm_exit, vmexit, sizeof(struct vm_exit)); 598221828Sgrehan return (error); 599221828Sgrehan} 600221828Sgrehan 601263780Sneelint 602265062Sneelvm_suspend(struct vmctx *ctx, enum vm_suspend_how how) 603263780Sneel{ 604265062Sneel struct vm_suspend vmsuspend; 605263780Sneel 606265062Sneel bzero(&vmsuspend, sizeof(vmsuspend)); 607265062Sneel vmsuspend.how = how; 608265062Sneel return (ioctl(ctx->fd, VM_SUSPEND, &vmsuspend)); 609263780Sneel} 610263780Sneel 611267216Sneelint 612267216Sneelvm_reinit(struct vmctx *ctx) 613267216Sneel{ 614267216Sneel 615267216Sneel return (ioctl(ctx->fd, VM_REINIT, 0)); 616267216Sneel} 617267216Sneel 618277310Sneelint 619277310Sneelvm_inject_exception(struct vmctx *ctx, int vcpu, int vector, int errcode_valid, 620277310Sneel uint32_t errcode, int restart_instruction) 621221828Sgrehan{ 622262506Sneel struct vm_exception exc; 623221828Sgrehan 624262506Sneel exc.cpuid = vcpu; 625262506Sneel exc.vector = vector; 626277310Sneel exc.error_code = errcode; 627277310Sneel exc.error_code_valid = errcode_valid; 628277310Sneel exc.restart_instruction = restart_instruction; 629221828Sgrehan 630262506Sneel return (ioctl(ctx->fd, VM_INJECT_EXCEPTION, &exc)); 631221828Sgrehan} 632221828Sgrehan 633221828Sgrehanint 634239026Sneelvm_apicid2vcpu(struct vmctx *ctx, int apicid) 635239026Sneel{ 636239026Sneel /* 637239026Sneel * The apic id associated with the 'vcpu' has the same numerical value 638239026Sneel * as the 'vcpu' itself. 639239026Sneel */ 640239026Sneel return (apicid); 641239026Sneel} 642239026Sneel 643239026Sneelint 644221828Sgrehanvm_lapic_irq(struct vmctx *ctx, int vcpu, int vector) 645221828Sgrehan{ 646221828Sgrehan struct vm_lapic_irq vmirq; 647221828Sgrehan 648221828Sgrehan bzero(&vmirq, sizeof(vmirq)); 649221828Sgrehan vmirq.cpuid = vcpu; 650221828Sgrehan vmirq.vector = vector; 651221828Sgrehan 652221828Sgrehan return (ioctl(ctx->fd, VM_LAPIC_IRQ, &vmirq)); 653221828Sgrehan} 654221828Sgrehan 655221828Sgrehanint 656259779Sjhbvm_lapic_local_irq(struct vmctx *ctx, int vcpu, int vector) 657259779Sjhb{ 658259779Sjhb struct vm_lapic_irq vmirq; 659259779Sjhb 660259779Sjhb bzero(&vmirq, sizeof(vmirq)); 661259779Sjhb vmirq.cpuid = vcpu; 662259779Sjhb vmirq.vector = vector; 663259779Sjhb 664259779Sjhb return (ioctl(ctx->fd, VM_LAPIC_LOCAL_IRQ, &vmirq)); 665259779Sjhb} 666259779Sjhb 667259779Sjhbint 668259482Sneelvm_lapic_msi(struct vmctx *ctx, uint64_t addr, uint64_t msg) 669259482Sneel{ 670259482Sneel struct vm_lapic_msi vmmsi; 671259482Sneel 672259482Sneel bzero(&vmmsi, sizeof(vmmsi)); 673259482Sneel vmmsi.addr = addr; 674259482Sneel vmmsi.msg = msg; 675259482Sneel 676259482Sneel return (ioctl(ctx->fd, VM_LAPIC_MSI, &vmmsi)); 677259482Sneel} 678259482Sneel 679259482Sneelint 680258075Sneelvm_ioapic_assert_irq(struct vmctx *ctx, int irq) 681258075Sneel{ 682258075Sneel struct vm_ioapic_irq ioapic_irq; 683258075Sneel 684258075Sneel bzero(&ioapic_irq, sizeof(struct vm_ioapic_irq)); 685258075Sneel ioapic_irq.irq = irq; 686258075Sneel 687258075Sneel return (ioctl(ctx->fd, VM_IOAPIC_ASSERT_IRQ, &ioapic_irq)); 688258075Sneel} 689258075Sneel 690258075Sneelint 691258075Sneelvm_ioapic_deassert_irq(struct vmctx *ctx, int irq) 692258075Sneel{ 693258075Sneel struct vm_ioapic_irq ioapic_irq; 694258075Sneel 695258075Sneel bzero(&ioapic_irq, sizeof(struct vm_ioapic_irq)); 696258075Sneel ioapic_irq.irq = irq; 697258075Sneel 698258075Sneel return (ioctl(ctx->fd, VM_IOAPIC_DEASSERT_IRQ, &ioapic_irq)); 699258075Sneel} 700258075Sneel 701258075Sneelint 702258494Sneelvm_ioapic_pulse_irq(struct vmctx *ctx, int irq) 703258494Sneel{ 704258494Sneel struct vm_ioapic_irq ioapic_irq; 705258494Sneel 706258494Sneel bzero(&ioapic_irq, sizeof(struct vm_ioapic_irq)); 707258494Sneel ioapic_irq.irq = irq; 708258494Sneel 709258494Sneel return (ioctl(ctx->fd, VM_IOAPIC_PULSE_IRQ, &ioapic_irq)); 710258494Sneel} 711258494Sneel 712258494Sneelint 713261268Sjhbvm_ioapic_pincount(struct vmctx *ctx, int *pincount) 714261268Sjhb{ 715261268Sjhb 716261268Sjhb return (ioctl(ctx->fd, VM_IOAPIC_PINCOUNT, pincount)); 717261268Sjhb} 718261268Sjhb 719261268Sjhbint 720263035Stychonvm_isa_assert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq) 721263035Stychon{ 722263035Stychon struct vm_isa_irq isa_irq; 723263035Stychon 724263035Stychon bzero(&isa_irq, sizeof(struct vm_isa_irq)); 725263035Stychon isa_irq.atpic_irq = atpic_irq; 726263035Stychon isa_irq.ioapic_irq = ioapic_irq; 727263035Stychon 728263035Stychon return (ioctl(ctx->fd, VM_ISA_ASSERT_IRQ, &isa_irq)); 729263035Stychon} 730263035Stychon 731263035Stychonint 732263035Stychonvm_isa_deassert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq) 733263035Stychon{ 734263035Stychon struct vm_isa_irq isa_irq; 735263035Stychon 736263035Stychon bzero(&isa_irq, sizeof(struct vm_isa_irq)); 737263035Stychon isa_irq.atpic_irq = atpic_irq; 738263035Stychon isa_irq.ioapic_irq = ioapic_irq; 739263035Stychon 740263035Stychon return (ioctl(ctx->fd, VM_ISA_DEASSERT_IRQ, &isa_irq)); 741263035Stychon} 742263035Stychon 743263035Stychonint 744263035Stychonvm_isa_pulse_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq) 745263035Stychon{ 746263035Stychon struct vm_isa_irq isa_irq; 747266125Sjhb 748263035Stychon bzero(&isa_irq, sizeof(struct vm_isa_irq)); 749263035Stychon isa_irq.atpic_irq = atpic_irq; 750263035Stychon isa_irq.ioapic_irq = ioapic_irq; 751263035Stychon 752263035Stychon return (ioctl(ctx->fd, VM_ISA_PULSE_IRQ, &isa_irq)); 753263035Stychon} 754263035Stychon 755263035Stychonint 756266125Sjhbvm_isa_set_irq_trigger(struct vmctx *ctx, int atpic_irq, 757266125Sjhb enum vm_intr_trigger trigger) 758266125Sjhb{ 759266125Sjhb struct vm_isa_irq_trigger isa_irq_trigger; 760266125Sjhb 761266125Sjhb bzero(&isa_irq_trigger, sizeof(struct vm_isa_irq_trigger)); 762266125Sjhb isa_irq_trigger.atpic_irq = atpic_irq; 763266125Sjhb isa_irq_trigger.trigger = trigger; 764266125Sjhb 765266125Sjhb return (ioctl(ctx->fd, VM_ISA_SET_IRQ_TRIGGER, &isa_irq_trigger)); 766266125Sjhb} 767266125Sjhb 768266125Sjhbint 769221828Sgrehanvm_inject_nmi(struct vmctx *ctx, int vcpu) 770221828Sgrehan{ 771221828Sgrehan struct vm_nmi vmnmi; 772221828Sgrehan 773221828Sgrehan bzero(&vmnmi, sizeof(vmnmi)); 774221828Sgrehan vmnmi.cpuid = vcpu; 775221828Sgrehan 776221828Sgrehan return (ioctl(ctx->fd, VM_INJECT_NMI, &vmnmi)); 777221828Sgrehan} 778221828Sgrehan 779241486Sneelstatic struct { 780241486Sneel const char *name; 781241486Sneel int type; 782241486Sneel} capstrmap[] = { 783241486Sneel { "hlt_exit", VM_CAP_HALT_EXIT }, 784241486Sneel { "mtrap_exit", VM_CAP_MTRAP_EXIT }, 785241486Sneel { "pause_exit", VM_CAP_PAUSE_EXIT }, 786241486Sneel { "unrestricted_guest", VM_CAP_UNRESTRICTED_GUEST }, 787256645Sneel { "enable_invpcid", VM_CAP_ENABLE_INVPCID }, 788241486Sneel { 0 } 789241486Sneel}; 790241486Sneel 791221828Sgrehanint 792221828Sgrehanvm_capability_name2type(const char *capname) 793221828Sgrehan{ 794221828Sgrehan int i; 795221828Sgrehan 796221828Sgrehan for (i = 0; capstrmap[i].name != NULL && capname != NULL; i++) { 797221828Sgrehan if (strcmp(capstrmap[i].name, capname) == 0) 798221828Sgrehan return (capstrmap[i].type); 799221828Sgrehan } 800221828Sgrehan 801221828Sgrehan return (-1); 802221828Sgrehan} 803221828Sgrehan 804241486Sneelconst char * 805241486Sneelvm_capability_type2name(int type) 806241486Sneel{ 807241486Sneel int i; 808241486Sneel 809241486Sneel for (i = 0; capstrmap[i].name != NULL; i++) { 810241486Sneel if (capstrmap[i].type == type) 811241486Sneel return (capstrmap[i].name); 812241486Sneel } 813241486Sneel 814241486Sneel return (NULL); 815241486Sneel} 816241486Sneel 817221828Sgrehanint 818221828Sgrehanvm_get_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap, 819221828Sgrehan int *retval) 820221828Sgrehan{ 821221828Sgrehan int error; 822221828Sgrehan struct vm_capability vmcap; 823221828Sgrehan 824221828Sgrehan bzero(&vmcap, sizeof(vmcap)); 825221828Sgrehan vmcap.cpuid = vcpu; 826221828Sgrehan vmcap.captype = cap; 827221828Sgrehan 828221828Sgrehan error = ioctl(ctx->fd, VM_GET_CAPABILITY, &vmcap); 829221828Sgrehan *retval = vmcap.capval; 830221828Sgrehan return (error); 831221828Sgrehan} 832221828Sgrehan 833221828Sgrehanint 834221828Sgrehanvm_set_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap, int val) 835221828Sgrehan{ 836221828Sgrehan struct vm_capability vmcap; 837221828Sgrehan 838221828Sgrehan bzero(&vmcap, sizeof(vmcap)); 839221828Sgrehan vmcap.cpuid = vcpu; 840221828Sgrehan vmcap.captype = cap; 841221828Sgrehan vmcap.capval = val; 842336161Saraujo 843221828Sgrehan return (ioctl(ctx->fd, VM_SET_CAPABILITY, &vmcap)); 844221828Sgrehan} 845221828Sgrehan 846221828Sgrehanint 847221828Sgrehanvm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func) 848221828Sgrehan{ 849221828Sgrehan struct vm_pptdev pptdev; 850221828Sgrehan 851221828Sgrehan bzero(&pptdev, sizeof(pptdev)); 852221828Sgrehan pptdev.bus = bus; 853221828Sgrehan pptdev.slot = slot; 854221828Sgrehan pptdev.func = func; 855221828Sgrehan 856221828Sgrehan return (ioctl(ctx->fd, VM_BIND_PPTDEV, &pptdev)); 857221828Sgrehan} 858221828Sgrehan 859221828Sgrehanint 860221828Sgrehanvm_unassign_pptdev(struct vmctx *ctx, int bus, int slot, int func) 861221828Sgrehan{ 862221828Sgrehan struct vm_pptdev pptdev; 863221828Sgrehan 864221828Sgrehan bzero(&pptdev, sizeof(pptdev)); 865221828Sgrehan pptdev.bus = bus; 866221828Sgrehan pptdev.slot = slot; 867221828Sgrehan pptdev.func = func; 868221828Sgrehan 869221828Sgrehan return (ioctl(ctx->fd, VM_UNBIND_PPTDEV, &pptdev)); 870221828Sgrehan} 871221828Sgrehan 872221828Sgrehanint 873221828Sgrehanvm_map_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func, 874221828Sgrehan vm_paddr_t gpa, size_t len, vm_paddr_t hpa) 875221828Sgrehan{ 876221828Sgrehan struct vm_pptdev_mmio pptmmio; 877221828Sgrehan 878221828Sgrehan bzero(&pptmmio, sizeof(pptmmio)); 879221828Sgrehan pptmmio.bus = bus; 880221828Sgrehan pptmmio.slot = slot; 881221828Sgrehan pptmmio.func = func; 882221828Sgrehan pptmmio.gpa = gpa; 883221828Sgrehan pptmmio.len = len; 884221828Sgrehan pptmmio.hpa = hpa; 885221828Sgrehan 886221828Sgrehan return (ioctl(ctx->fd, VM_MAP_PPTDEV_MMIO, &pptmmio)); 887221828Sgrehan} 888221828Sgrehan 889221828Sgrehanint 890259537Sneelvm_setup_pptdev_msi(struct vmctx *ctx, int vcpu, int bus, int slot, int func, 891259537Sneel uint64_t addr, uint64_t msg, int numvec) 892221828Sgrehan{ 893221828Sgrehan struct vm_pptdev_msi pptmsi; 894221828Sgrehan 895221828Sgrehan bzero(&pptmsi, sizeof(pptmsi)); 896221828Sgrehan pptmsi.vcpu = vcpu; 897221828Sgrehan pptmsi.bus = bus; 898221828Sgrehan pptmsi.slot = slot; 899221828Sgrehan pptmsi.func = func; 900259482Sneel pptmsi.msg = msg; 901259482Sneel pptmsi.addr = addr; 902221828Sgrehan pptmsi.numvec = numvec; 903221828Sgrehan 904221828Sgrehan return (ioctl(ctx->fd, VM_PPTDEV_MSI, &pptmsi)); 905221828Sgrehan} 906221828Sgrehan 907234761Sgrehanint 908259537Sneelvm_setup_pptdev_msix(struct vmctx *ctx, int vcpu, int bus, int slot, int func, 909259537Sneel int idx, uint64_t addr, uint64_t msg, uint32_t vector_control) 910234761Sgrehan{ 911234761Sgrehan struct vm_pptdev_msix pptmsix; 912234761Sgrehan 913234761Sgrehan bzero(&pptmsix, sizeof(pptmsix)); 914234761Sgrehan pptmsix.vcpu = vcpu; 915234761Sgrehan pptmsix.bus = bus; 916234761Sgrehan pptmsix.slot = slot; 917234761Sgrehan pptmsix.func = func; 918234761Sgrehan pptmsix.idx = idx; 919234761Sgrehan pptmsix.msg = msg; 920234761Sgrehan pptmsix.addr = addr; 921234761Sgrehan pptmsix.vector_control = vector_control; 922234761Sgrehan 923234761Sgrehan return ioctl(ctx->fd, VM_PPTDEV_MSIX, &pptmsix); 924234761Sgrehan} 925234761Sgrehan 926221828Sgrehanuint64_t * 927221828Sgrehanvm_get_stats(struct vmctx *ctx, int vcpu, struct timeval *ret_tv, 928221828Sgrehan int *ret_entries) 929221828Sgrehan{ 930221828Sgrehan int error; 931221828Sgrehan 932221828Sgrehan static struct vm_stats vmstats; 933221828Sgrehan 934221828Sgrehan vmstats.cpuid = vcpu; 935221828Sgrehan 936221828Sgrehan error = ioctl(ctx->fd, VM_STATS, &vmstats); 937221828Sgrehan if (error == 0) { 938221828Sgrehan if (ret_entries) 939221828Sgrehan *ret_entries = vmstats.num_entries; 940221828Sgrehan if (ret_tv) 941221828Sgrehan *ret_tv = vmstats.tv; 942221828Sgrehan return (vmstats.statbuf); 943221828Sgrehan } else 944221828Sgrehan return (NULL); 945221828Sgrehan} 946221828Sgrehan 947221828Sgrehanconst char * 948221828Sgrehanvm_get_stat_desc(struct vmctx *ctx, int index) 949221828Sgrehan{ 950221828Sgrehan static struct vm_stat_desc statdesc; 951221828Sgrehan 952221828Sgrehan statdesc.index = index; 953221828Sgrehan if (ioctl(ctx->fd, VM_STAT_DESC, &statdesc) == 0) 954221828Sgrehan return (statdesc.desc); 955221828Sgrehan else 956221828Sgrehan return (NULL); 957221828Sgrehan} 958221828Sgrehan 959240922Sneelint 960240922Sneelvm_get_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state *state) 961240922Sneel{ 962240922Sneel int error; 963240922Sneel struct vm_x2apic x2apic; 964240922Sneel 965240922Sneel bzero(&x2apic, sizeof(x2apic)); 966240922Sneel x2apic.cpuid = vcpu; 967240922Sneel 968240922Sneel error = ioctl(ctx->fd, VM_GET_X2APIC_STATE, &x2apic); 969240922Sneel *state = x2apic.state; 970240922Sneel return (error); 971240922Sneel} 972240922Sneel 973240922Sneelint 974240922Sneelvm_set_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state state) 975240922Sneel{ 976240922Sneel int error; 977240922Sneel struct vm_x2apic x2apic; 978240922Sneel 979240922Sneel bzero(&x2apic, sizeof(x2apic)); 980240922Sneel x2apic.cpuid = vcpu; 981240922Sneel x2apic.state = state; 982240922Sneel 983240922Sneel error = ioctl(ctx->fd, VM_SET_X2APIC_STATE, &x2apic); 984240922Sneel 985240922Sneel return (error); 986240922Sneel} 987240922Sneel 988221828Sgrehan/* 989221828Sgrehan * From Intel Vol 3a: 990221828Sgrehan * Table 9-1. IA-32 Processor States Following Power-up, Reset or INIT 991221828Sgrehan */ 992221828Sgrehanint 993221828Sgrehanvcpu_reset(struct vmctx *vmctx, int vcpu) 994221828Sgrehan{ 995221828Sgrehan int error; 996221828Sgrehan uint64_t rflags, rip, cr0, cr4, zero, desc_base, rdx; 997221828Sgrehan uint32_t desc_access, desc_limit; 998221828Sgrehan uint16_t sel; 999221828Sgrehan 1000221828Sgrehan zero = 0; 1001221828Sgrehan 1002221828Sgrehan rflags = 0x2; 1003221828Sgrehan error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RFLAGS, rflags); 1004221828Sgrehan if (error) 1005221828Sgrehan goto done; 1006221828Sgrehan 1007221828Sgrehan rip = 0xfff0; 1008221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RIP, rip)) != 0) 1009221828Sgrehan goto done; 1010221828Sgrehan 1011221828Sgrehan cr0 = CR0_NE; 1012221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_CR0, cr0)) != 0) 1013221828Sgrehan goto done; 1014221828Sgrehan 1015221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_CR3, zero)) != 0) 1016221828Sgrehan goto done; 1017221828Sgrehan 1018239025Sneel cr4 = 0; 1019221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_CR4, cr4)) != 0) 1020221828Sgrehan goto done; 1021221828Sgrehan 1022221828Sgrehan /* 1023221828Sgrehan * CS: present, r/w, accessed, 16-bit, byte granularity, usable 1024221828Sgrehan */ 1025221828Sgrehan desc_base = 0xffff0000; 1026221828Sgrehan desc_limit = 0xffff; 1027221828Sgrehan desc_access = 0x0093; 1028221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_CS, 1029221828Sgrehan desc_base, desc_limit, desc_access); 1030221828Sgrehan if (error) 1031221828Sgrehan goto done; 1032221828Sgrehan 1033221828Sgrehan sel = 0xf000; 1034221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_CS, sel)) != 0) 1035221828Sgrehan goto done; 1036221828Sgrehan 1037221828Sgrehan /* 1038221828Sgrehan * SS,DS,ES,FS,GS: present, r/w, accessed, 16-bit, byte granularity 1039221828Sgrehan */ 1040221828Sgrehan desc_base = 0; 1041221828Sgrehan desc_limit = 0xffff; 1042221828Sgrehan desc_access = 0x0093; 1043221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_SS, 1044221828Sgrehan desc_base, desc_limit, desc_access); 1045221828Sgrehan if (error) 1046221828Sgrehan goto done; 1047221828Sgrehan 1048221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_DS, 1049221828Sgrehan desc_base, desc_limit, desc_access); 1050221828Sgrehan if (error) 1051221828Sgrehan goto done; 1052221828Sgrehan 1053221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_ES, 1054221828Sgrehan desc_base, desc_limit, desc_access); 1055221828Sgrehan if (error) 1056221828Sgrehan goto done; 1057221828Sgrehan 1058221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_FS, 1059221828Sgrehan desc_base, desc_limit, desc_access); 1060221828Sgrehan if (error) 1061221828Sgrehan goto done; 1062221828Sgrehan 1063221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_GS, 1064221828Sgrehan desc_base, desc_limit, desc_access); 1065221828Sgrehan if (error) 1066221828Sgrehan goto done; 1067221828Sgrehan 1068221828Sgrehan sel = 0; 1069221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_SS, sel)) != 0) 1070221828Sgrehan goto done; 1071221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_DS, sel)) != 0) 1072221828Sgrehan goto done; 1073221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_ES, sel)) != 0) 1074221828Sgrehan goto done; 1075221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_FS, sel)) != 0) 1076221828Sgrehan goto done; 1077221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_GS, sel)) != 0) 1078221828Sgrehan goto done; 1079221828Sgrehan 1080221828Sgrehan /* General purpose registers */ 1081221828Sgrehan rdx = 0xf00; 1082221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RAX, zero)) != 0) 1083221828Sgrehan goto done; 1084221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RBX, zero)) != 0) 1085221828Sgrehan goto done; 1086221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RCX, zero)) != 0) 1087221828Sgrehan goto done; 1088221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RDX, rdx)) != 0) 1089221828Sgrehan goto done; 1090221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RSI, zero)) != 0) 1091221828Sgrehan goto done; 1092221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RDI, zero)) != 0) 1093221828Sgrehan goto done; 1094221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RBP, zero)) != 0) 1095221828Sgrehan goto done; 1096221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_RSP, zero)) != 0) 1097221828Sgrehan goto done; 1098221828Sgrehan 1099221828Sgrehan /* GDTR, IDTR */ 1100221828Sgrehan desc_base = 0; 1101221828Sgrehan desc_limit = 0xffff; 1102221828Sgrehan desc_access = 0; 1103221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_GDTR, 1104221828Sgrehan desc_base, desc_limit, desc_access); 1105221828Sgrehan if (error != 0) 1106221828Sgrehan goto done; 1107221828Sgrehan 1108221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_IDTR, 1109221828Sgrehan desc_base, desc_limit, desc_access); 1110221828Sgrehan if (error != 0) 1111221828Sgrehan goto done; 1112221828Sgrehan 1113221828Sgrehan /* TR */ 1114221828Sgrehan desc_base = 0; 1115221828Sgrehan desc_limit = 0xffff; 1116221828Sgrehan desc_access = 0x0000008b; 1117221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_TR, 0, 0, desc_access); 1118221828Sgrehan if (error) 1119221828Sgrehan goto done; 1120221828Sgrehan 1121221828Sgrehan sel = 0; 1122221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_TR, sel)) != 0) 1123221828Sgrehan goto done; 1124221828Sgrehan 1125221828Sgrehan /* LDTR */ 1126221828Sgrehan desc_base = 0; 1127221828Sgrehan desc_limit = 0xffff; 1128221828Sgrehan desc_access = 0x00000082; 1129221828Sgrehan error = vm_set_desc(vmctx, vcpu, VM_REG_GUEST_LDTR, desc_base, 1130221828Sgrehan desc_limit, desc_access); 1131221828Sgrehan if (error) 1132221828Sgrehan goto done; 1133221828Sgrehan 1134221828Sgrehan sel = 0; 1135221828Sgrehan if ((error = vm_set_register(vmctx, vcpu, VM_REG_GUEST_LDTR, 0)) != 0) 1136221828Sgrehan goto done; 1137221828Sgrehan 1138221828Sgrehan /* XXX cr2, debug registers */ 1139221828Sgrehan 1140221828Sgrehan error = 0; 1141221828Sgrehandone: 1142221828Sgrehan return (error); 1143221828Sgrehan} 1144256072Sneel 1145256072Sneelint 1146256072Sneelvm_get_gpa_pmap(struct vmctx *ctx, uint64_t gpa, uint64_t *pte, int *num) 1147256072Sneel{ 1148256072Sneel int error, i; 1149256072Sneel struct vm_gpa_pte gpapte; 1150256072Sneel 1151256072Sneel bzero(&gpapte, sizeof(gpapte)); 1152256072Sneel gpapte.gpa = gpa; 1153256072Sneel 1154256072Sneel error = ioctl(ctx->fd, VM_GET_GPA_PMAP, &gpapte); 1155256072Sneel 1156256072Sneel if (error == 0) { 1157256072Sneel *num = gpapte.ptenum; 1158256072Sneel for (i = 0; i < gpapte.ptenum; i++) 1159256072Sneel pte[i] = gpapte.pte[i]; 1160256072Sneel } 1161256072Sneel 1162256072Sneel return (error); 1163256072Sneel} 1164258579Sneel 1165258579Sneelint 1166258579Sneelvm_get_hpet_capabilities(struct vmctx *ctx, uint32_t *capabilities) 1167258579Sneel{ 1168258579Sneel int error; 1169258579Sneel struct vm_hpet_cap cap; 1170258579Sneel 1171258579Sneel bzero(&cap, sizeof(struct vm_hpet_cap)); 1172258579Sneel error = ioctl(ctx->fd, VM_GET_HPET_CAPABILITIES, &cap); 1173258579Sneel if (capabilities != NULL) 1174258579Sneel *capabilities = cap.capabilities; 1175258579Sneel return (error); 1176258579Sneel} 1177266633Sneel 1178282558Sneelint 1179282558Sneelvm_gla2gpa(struct vmctx *ctx, int vcpu, struct vm_guest_paging *paging, 1180282558Sneel uint64_t gla, int prot, uint64_t *gpa, int *fault) 1181266633Sneel{ 1182266633Sneel struct vm_gla2gpa gg; 1183266633Sneel int error; 1184266633Sneel 1185266633Sneel bzero(&gg, sizeof(struct vm_gla2gpa)); 1186266633Sneel gg.vcpuid = vcpu; 1187266633Sneel gg.prot = prot; 1188266633Sneel gg.gla = gla; 1189266633Sneel gg.paging = *paging; 1190266633Sneel 1191266633Sneel error = ioctl(ctx->fd, VM_GLA2GPA, &gg); 1192266633Sneel if (error == 0) { 1193266633Sneel *fault = gg.fault; 1194266633Sneel *gpa = gg.gpa; 1195266633Sneel } 1196266633Sneel return (error); 1197266633Sneel} 1198266633Sneel 1199266633Sneel#ifndef min 1200266633Sneel#define min(a,b) (((a) < (b)) ? (a) : (b)) 1201266633Sneel#endif 1202266633Sneel 1203266633Sneelint 1204269008Sneelvm_copy_setup(struct vmctx *ctx, int vcpu, struct vm_guest_paging *paging, 1205282558Sneel uint64_t gla, size_t len, int prot, struct iovec *iov, int iovcnt, 1206282558Sneel int *fault) 1207266633Sneel{ 1208277359Sneel void *va; 1209266633Sneel uint64_t gpa; 1210282558Sneel int error, i, n, off; 1211266633Sneel 1212266708Sneel for (i = 0; i < iovcnt; i++) { 1213266708Sneel iov[i].iov_base = 0; 1214266708Sneel iov[i].iov_len = 0; 1215266708Sneel } 1216266708Sneel 1217266633Sneel while (len) { 1218266708Sneel assert(iovcnt > 0); 1219282558Sneel error = vm_gla2gpa(ctx, vcpu, paging, gla, prot, &gpa, fault); 1220282558Sneel if (error || *fault) 1221282558Sneel return (error); 1222266633Sneel 1223266633Sneel off = gpa & PAGE_MASK; 1224266633Sneel n = min(len, PAGE_SIZE - off); 1225266708Sneel 1226277359Sneel va = vm_map_gpa(ctx, gpa, n); 1227277359Sneel if (va == NULL) 1228282558Sneel return (EFAULT); 1229277359Sneel 1230277359Sneel iov->iov_base = va; 1231266708Sneel iov->iov_len = n; 1232266708Sneel iov++; 1233266708Sneel iovcnt--; 1234266708Sneel 1235266708Sneel gla += n; 1236266708Sneel len -= n; 1237266708Sneel } 1238266708Sneel return (0); 1239266708Sneel} 1240266708Sneel 1241266708Sneelvoid 1242277359Sneelvm_copy_teardown(struct vmctx *ctx, int vcpu, struct iovec *iov, int iovcnt) 1243277359Sneel{ 1244277359Sneel 1245277359Sneel return; 1246277359Sneel} 1247277359Sneel 1248277359Sneelvoid 1249266708Sneelvm_copyin(struct vmctx *ctx, int vcpu, struct iovec *iov, void *vp, size_t len) 1250266708Sneel{ 1251266708Sneel const char *src; 1252266708Sneel char *dst; 1253266708Sneel size_t n; 1254266708Sneel 1255266708Sneel dst = vp; 1256266708Sneel while (len) { 1257266708Sneel assert(iov->iov_len); 1258266708Sneel n = min(len, iov->iov_len); 1259277359Sneel src = iov->iov_base; 1260266633Sneel bcopy(src, dst, n); 1261266633Sneel 1262266708Sneel iov++; 1263266633Sneel dst += n; 1264266633Sneel len -= n; 1265266633Sneel } 1266266633Sneel} 1267266633Sneel 1268266708Sneelvoid 1269266708Sneelvm_copyout(struct vmctx *ctx, int vcpu, const void *vp, struct iovec *iov, 1270266708Sneel size_t len) 1271266633Sneel{ 1272266708Sneel const char *src; 1273266708Sneel char *dst; 1274266708Sneel size_t n; 1275266633Sneel 1276266633Sneel src = vp; 1277266633Sneel while (len) { 1278266708Sneel assert(iov->iov_len); 1279266708Sneel n = min(len, iov->iov_len); 1280277359Sneel dst = iov->iov_base; 1281266633Sneel bcopy(src, dst, n); 1282266633Sneel 1283266708Sneel iov++; 1284266633Sneel src += n; 1285266633Sneel len -= n; 1286266633Sneel } 1287266633Sneel} 1288266933Sneel 1289266933Sneelstatic int 1290266933Sneelvm_get_cpus(struct vmctx *ctx, int which, cpuset_t *cpus) 1291266933Sneel{ 1292266933Sneel struct vm_cpuset vm_cpuset; 1293266933Sneel int error; 1294266933Sneel 1295266933Sneel bzero(&vm_cpuset, sizeof(struct vm_cpuset)); 1296266933Sneel vm_cpuset.which = which; 1297266933Sneel vm_cpuset.cpusetsize = sizeof(cpuset_t); 1298266933Sneel vm_cpuset.cpus = cpus; 1299266933Sneel 1300266933Sneel error = ioctl(ctx->fd, VM_GET_CPUS, &vm_cpuset); 1301266933Sneel return (error); 1302266933Sneel} 1303266933Sneel 1304266933Sneelint 1305266933Sneelvm_active_cpus(struct vmctx *ctx, cpuset_t *cpus) 1306266933Sneel{ 1307266933Sneel 1308266933Sneel return (vm_get_cpus(ctx, VM_ACTIVE_CPUS, cpus)); 1309266933Sneel} 1310266933Sneel 1311266933Sneelint 1312266933Sneelvm_suspended_cpus(struct vmctx *ctx, cpuset_t *cpus) 1313266933Sneel{ 1314266933Sneel 1315266933Sneel return (vm_get_cpus(ctx, VM_SUSPENDED_CPUS, cpus)); 1316266933Sneel} 1317266933Sneel 1318266933Sneelint 1319266933Sneelvm_activate_cpu(struct vmctx *ctx, int vcpu) 1320266933Sneel{ 1321266933Sneel struct vm_activate_cpu ac; 1322266933Sneel int error; 1323266933Sneel 1324266933Sneel bzero(&ac, sizeof(struct vm_activate_cpu)); 1325266933Sneel ac.vcpuid = vcpu; 1326266933Sneel error = ioctl(ctx->fd, VM_ACTIVATE_CPU, &ac); 1327266933Sneel return (error); 1328266933Sneel} 1329268889Sneel 1330268889Sneelint 1331268889Sneelvm_get_intinfo(struct vmctx *ctx, int vcpu, uint64_t *info1, uint64_t *info2) 1332268889Sneel{ 1333268889Sneel struct vm_intinfo vmii; 1334268889Sneel int error; 1335268889Sneel 1336268889Sneel bzero(&vmii, sizeof(struct vm_intinfo)); 1337268889Sneel vmii.vcpuid = vcpu; 1338268889Sneel error = ioctl(ctx->fd, VM_GET_INTINFO, &vmii); 1339268889Sneel if (error == 0) { 1340268889Sneel *info1 = vmii.info1; 1341268889Sneel *info2 = vmii.info2; 1342268889Sneel } 1343268889Sneel return (error); 1344268889Sneel} 1345268889Sneel 1346268889Sneelint 1347268889Sneelvm_set_intinfo(struct vmctx *ctx, int vcpu, uint64_t info1) 1348268889Sneel{ 1349268889Sneel struct vm_intinfo vmii; 1350268889Sneel int error; 1351268889Sneel 1352268889Sneel bzero(&vmii, sizeof(struct vm_intinfo)); 1353268889Sneel vmii.vcpuid = vcpu; 1354268889Sneel vmii.info1 = info1; 1355268889Sneel error = ioctl(ctx->fd, VM_SET_INTINFO, &vmii); 1356268889Sneel return (error); 1357268889Sneel} 1358276428Sneel 1359276428Sneelint 1360276428Sneelvm_rtc_write(struct vmctx *ctx, int offset, uint8_t value) 1361276428Sneel{ 1362276428Sneel struct vm_rtc_data rtcdata; 1363276428Sneel int error; 1364276428Sneel 1365276428Sneel bzero(&rtcdata, sizeof(struct vm_rtc_data)); 1366276428Sneel rtcdata.offset = offset; 1367276428Sneel rtcdata.value = value; 1368276428Sneel error = ioctl(ctx->fd, VM_RTC_WRITE, &rtcdata); 1369276428Sneel return (error); 1370276428Sneel} 1371276428Sneel 1372276428Sneelint 1373276428Sneelvm_rtc_read(struct vmctx *ctx, int offset, uint8_t *retval) 1374276428Sneel{ 1375276428Sneel struct vm_rtc_data rtcdata; 1376276428Sneel int error; 1377276428Sneel 1378276428Sneel bzero(&rtcdata, sizeof(struct vm_rtc_data)); 1379276428Sneel rtcdata.offset = offset; 1380276428Sneel error = ioctl(ctx->fd, VM_RTC_READ, &rtcdata); 1381276428Sneel if (error == 0) 1382276428Sneel *retval = rtcdata.value; 1383276428Sneel return (error); 1384276428Sneel} 1385276428Sneel 1386276428Sneelint 1387276428Sneelvm_rtc_settime(struct vmctx *ctx, time_t secs) 1388276428Sneel{ 1389276428Sneel struct vm_rtc_time rtctime; 1390276428Sneel int error; 1391276428Sneel 1392276428Sneel bzero(&rtctime, sizeof(struct vm_rtc_time)); 1393276428Sneel rtctime.secs = secs; 1394276428Sneel error = ioctl(ctx->fd, VM_RTC_SETTIME, &rtctime); 1395276428Sneel return (error); 1396276428Sneel} 1397276428Sneel 1398276428Sneelint 1399276428Sneelvm_rtc_gettime(struct vmctx *ctx, time_t *secs) 1400276428Sneel{ 1401276428Sneel struct vm_rtc_time rtctime; 1402276428Sneel int error; 1403276428Sneel 1404276428Sneel bzero(&rtctime, sizeof(struct vm_rtc_time)); 1405276428Sneel error = ioctl(ctx->fd, VM_RTC_GETTIME, &rtctime); 1406276428Sneel if (error == 0) 1407276428Sneel *secs = rtctime.secs; 1408276428Sneel return (error); 1409276428Sneel} 1410277310Sneel 1411277310Sneelint 1412277310Sneelvm_restart_instruction(void *arg, int vcpu) 1413277310Sneel{ 1414277310Sneel struct vmctx *ctx = arg; 1415277310Sneel 1416277310Sneel return (ioctl(ctx->fd, VM_RESTART_INSTRUCTION, &vcpu)); 1417277310Sneel} 1418320866Sgrehan 1419320866Sgrehanint 1420348201Srgrimesvm_set_topology(struct vmctx *ctx, 1421348201Srgrimes uint16_t sockets, uint16_t cores, uint16_t threads, uint16_t maxcpus) 1422348201Srgrimes{ 1423348201Srgrimes struct vm_cpu_topology topology; 1424348201Srgrimes 1425348201Srgrimes bzero(&topology, sizeof (struct vm_cpu_topology)); 1426348201Srgrimes topology.sockets = sockets; 1427348201Srgrimes topology.cores = cores; 1428348201Srgrimes topology.threads = threads; 1429348201Srgrimes topology.maxcpus = maxcpus; 1430348201Srgrimes return (ioctl(ctx->fd, VM_SET_TOPOLOGY, &topology)); 1431348201Srgrimes} 1432348201Srgrimes 1433348201Srgrimesint 1434348201Srgrimesvm_get_topology(struct vmctx *ctx, 1435348201Srgrimes uint16_t *sockets, uint16_t *cores, uint16_t *threads, uint16_t *maxcpus) 1436348201Srgrimes{ 1437348201Srgrimes struct vm_cpu_topology topology; 1438348201Srgrimes int error; 1439348201Srgrimes 1440348201Srgrimes bzero(&topology, sizeof (struct vm_cpu_topology)); 1441348201Srgrimes error = ioctl(ctx->fd, VM_GET_TOPOLOGY, &topology); 1442348201Srgrimes if (error == 0) { 1443348201Srgrimes *sockets = topology.sockets; 1444348201Srgrimes *cores = topology.cores; 1445348201Srgrimes *threads = topology.threads; 1446348201Srgrimes *maxcpus = topology.maxcpus; 1447348201Srgrimes } 1448348201Srgrimes return (error); 1449348201Srgrimes} 1450348201Srgrimes 1451348201Srgrimesint 1452320866Sgrehanvm_get_device_fd(struct vmctx *ctx) 1453320866Sgrehan{ 1454320866Sgrehan 1455320866Sgrehan return (ctx->fd); 1456320866Sgrehan} 1457320866Sgrehan 1458320866Sgrehanconst cap_ioctl_t * 1459320866Sgrehanvm_get_ioctls(size_t *len) 1460320866Sgrehan{ 1461320866Sgrehan cap_ioctl_t *cmds; 1462320866Sgrehan /* keep in sync with machine/vmm_dev.h */ 1463320866Sgrehan static const cap_ioctl_t vm_ioctl_cmds[] = { VM_RUN, VM_SUSPEND, VM_REINIT, 1464320866Sgrehan VM_ALLOC_MEMSEG, VM_GET_MEMSEG, VM_MMAP_MEMSEG, VM_MMAP_MEMSEG, 1465320866Sgrehan VM_MMAP_GETNEXT, VM_SET_REGISTER, VM_GET_REGISTER, 1466320866Sgrehan VM_SET_SEGMENT_DESCRIPTOR, VM_GET_SEGMENT_DESCRIPTOR, 1467320866Sgrehan VM_INJECT_EXCEPTION, VM_LAPIC_IRQ, VM_LAPIC_LOCAL_IRQ, 1468320866Sgrehan VM_LAPIC_MSI, VM_IOAPIC_ASSERT_IRQ, VM_IOAPIC_DEASSERT_IRQ, 1469320866Sgrehan VM_IOAPIC_PULSE_IRQ, VM_IOAPIC_PINCOUNT, VM_ISA_ASSERT_IRQ, 1470320866Sgrehan VM_ISA_DEASSERT_IRQ, VM_ISA_PULSE_IRQ, VM_ISA_SET_IRQ_TRIGGER, 1471320866Sgrehan VM_SET_CAPABILITY, VM_GET_CAPABILITY, VM_BIND_PPTDEV, 1472320866Sgrehan VM_UNBIND_PPTDEV, VM_MAP_PPTDEV_MMIO, VM_PPTDEV_MSI, 1473320866Sgrehan VM_PPTDEV_MSIX, VM_INJECT_NMI, VM_STATS, VM_STAT_DESC, 1474320866Sgrehan VM_SET_X2APIC_STATE, VM_GET_X2APIC_STATE, 1475320866Sgrehan VM_GET_HPET_CAPABILITIES, VM_GET_GPA_PMAP, VM_GLA2GPA, 1476320866Sgrehan VM_ACTIVATE_CPU, VM_GET_CPUS, VM_SET_INTINFO, VM_GET_INTINFO, 1477320866Sgrehan VM_RTC_WRITE, VM_RTC_READ, VM_RTC_SETTIME, VM_RTC_GETTIME, 1478348201Srgrimes VM_RESTART_INSTRUCTION, VM_SET_TOPOLOGY, VM_GET_TOPOLOGY }; 1479320866Sgrehan 1480320866Sgrehan if (len == NULL) { 1481320866Sgrehan cmds = malloc(sizeof(vm_ioctl_cmds)); 1482320866Sgrehan if (cmds == NULL) 1483320866Sgrehan return (NULL); 1484320866Sgrehan bcopy(vm_ioctl_cmds, cmds, sizeof(vm_ioctl_cmds)); 1485320866Sgrehan return (cmds); 1486320866Sgrehan } 1487320866Sgrehan 1488320866Sgrehan *len = nitems(vm_ioctl_cmds); 1489320866Sgrehan return (NULL); 1490320866Sgrehan} 1491