direct-io.hg

annotate tools/libxc/xenctrl.h @ 9660:74ee53209cca

Fix whitespace in libxc. Tabs are manually fixed.
Trailing whitespace removed with:
perl -p -i -e 's/\s+$/\n/g' tools/libxc/*.[ch]

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
author kaf24@firebug.cl.cam.ac.uk
date Sat Apr 15 10:07:31 2006 +0100 (2006-04-15)
parents b128f55ca05c
children 24dbb153ab39
rev   line source
mjw@1623 1 /******************************************************************************
cl349@6388 2 * xenctrl.h
kaf24@9660 3 *
mjw@1623 4 * A library for low-level access to the Xen control interfaces.
kaf24@9660 5 *
kaf24@2787 6 * Copyright (c) 2003-2004, K A Fraser.
mjw@1623 7 */
mjw@1623 8
cl349@6389 9 #ifndef XENCTRL_H
cl349@6389 10 #define XENCTRL_H
mjw@1623 11
kaf24@3266 12 #include <stdint.h>
kaf24@4719 13 #include <sys/ptrace.h>
kaf24@2821 14 #include <xen/xen.h>
kaf24@2821 15 #include <xen/dom0_ops.h>
vh249@6549 16 #include <xen/version.h>
kaf24@2821 17 #include <xen/event_channel.h>
kaf24@7196 18 #include <xen/sched.h>
kaf24@2821 19 #include <xen/sched_ctl.h>
smh22@7702 20 #include <xen/memory.h>
kaf24@5541 21 #include <xen/acm.h>
kaf24@2787 22
kaf24@5914 23 #ifdef __ia64__
kaf24@5914 24 #define XC_PAGE_SHIFT 14
kaf24@5914 25 #else
kaf24@5914 26 #define XC_PAGE_SHIFT 12
kaf24@5914 27 #endif
kaf24@5914 28 #define XC_PAGE_SIZE (1UL << XC_PAGE_SHIFT)
kaf24@5914 29 #define XC_PAGE_MASK (~(XC_PAGE_SIZE-1))
kaf24@5914 30
kaf24@3961 31 /*
kaf24@3961 32 * DEFINITIONS FOR CPU BARRIERS
kaf24@9660 33 */
kaf24@3961 34
kaf24@3961 35 #if defined(__i386__)
kaf24@3966 36 #define mb() __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
kaf24@3966 37 #define rmb() __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
kaf24@3966 38 #define wmb() __asm__ __volatile__ ( "" : : : "memory")
kaf24@3961 39 #elif defined(__x86_64__)
kaf24@3966 40 #define mb() __asm__ __volatile__ ( "mfence" : : : "memory")
kaf24@3966 41 #define rmb() __asm__ __volatile__ ( "lfence" : : : "memory")
kaf24@3966 42 #define wmb() __asm__ __volatile__ ( "" : : : "memory")
kaf24@5914 43 #elif defined(__ia64__)
kaf24@5914 44 /* FIXME */
kaf24@5914 45 #define mb()
kaf24@5914 46 #define rmb()
kaf24@5914 47 #define wmb()
kaf24@3961 48 #else
kaf24@3961 49 #error "Define barriers"
kaf24@3961 50 #endif
kaf24@3961 51
kaf24@3961 52 /*
iap10@3443 53 * INITIALIZATION FUNCTIONS
kaf24@9660 54 */
iap10@3443 55
iap10@3443 56 /**
iap10@3443 57 * This function opens a handle to the hypervisor interface. This function can
iap10@3443 58 * be called multiple times within a single process. Multiple processes can
iap10@3443 59 * have an open hypervisor interface at the same time.
iap10@3443 60 *
iap10@3443 61 * Each call to this function should have a corresponding call to
iap10@3443 62 * xc_interface_close().
iap10@3443 63 *
iap10@3443 64 * This function can fail if the caller does not have superuser permission or
iap10@3443 65 * if a Xen-enabled kernel is not currently running.
iap10@3443 66 *
iap10@3443 67 * @return a handle to the hypervisor interface or -1 on failure
iap10@3443 68 */
mjw@1623 69 int xc_interface_open(void);
iap10@3443 70
iap10@3443 71 /**
iap10@3443 72 * This function closes an open hypervisor interface.
iap10@3443 73 *
iap10@3443 74 * This function can fail if the handle does not represent an open interface or
iap10@3443 75 * if there were problems closing the interface.
iap10@3443 76 *
iap10@3443 77 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 78 * @return 0 on success, -1 otherwise.
iap10@3443 79 */
mjw@1623 80 int xc_interface_close(int xc_handle);
mjw@1623 81
kaf24@3961 82 /*
kaf24@4719 83 * DOMAIN DEBUGGING FUNCTIONS
kaf24@4719 84 */
kaf24@4719 85
kaf24@4719 86 typedef struct xc_core_header {
kaf24@4719 87 unsigned int xch_magic;
kaf24@4719 88 unsigned int xch_nr_vcpus;
kaf24@4719 89 unsigned int xch_nr_pages;
kaf24@4719 90 unsigned int xch_ctxt_offset;
kaf24@4719 91 unsigned int xch_index_offset;
kaf24@4719 92 unsigned int xch_pages_offset;
kaf24@4719 93 } xc_core_header_t;
kaf24@4719 94
kaf24@9145 95 #define XC_CORE_MAGIC 0xF00FEBED
kaf24@4719 96
kaf24@6941 97 long xc_ptrace_core(
kaf24@6941 98 int xc_handle,
kaf24@9660 99 enum __ptrace_request request,
kaf24@9660 100 uint32_t domid,
kaf24@9660 101 long addr,
kaf24@9143 102 long data,
kaf24@9143 103 vcpu_guest_context_t *ctxt);
kaf24@9143 104 void * map_domain_va_core(
kaf24@9660 105 unsigned long domfd,
kaf24@9660 106 int cpu,
kaf24@9143 107 void *guest_va,
kaf24@9143 108 vcpu_guest_context_t *ctxt);
kaf24@6941 109 int xc_waitdomain_core(
kaf24@6941 110 int xc_handle,
kaf24@9660 111 int domain,
kaf24@9660 112 int *status,
kaf24@9143 113 int options,
kaf24@9143 114 vcpu_guest_context_t *ctxt);
kaf24@4719 115
kaf24@4719 116 /*
iap10@3443 117 * DOMAIN MANAGEMENT FUNCTIONS
kaf24@3961 118 */
iap10@3443 119
mjw@1623 120 typedef struct {
kaf24@7378 121 uint32_t domid;
kaf24@7378 122 uint32_t ssidref;
kaf24@9660 123 unsigned int dying:1, crashed:1, shutdown:1,
mjw@1623 124 paused:1, blocked:1, running:1;
mjw@1623 125 unsigned int shutdown_reason; /* only meaningful if shutdown==1 */
mjw@1623 126 unsigned long nr_pages;
mjw@1623 127 unsigned long shared_info_frame;
kaf24@7378 128 uint64_t cpu_time;
mjw@1623 129 unsigned long max_memkb;
kaf24@7397 130 unsigned int nr_online_vcpus;
kaf24@7397 131 unsigned int max_vcpu_id;
kaf24@7378 132 xen_domain_handle_t handle;
mjw@1623 133 } xc_dominfo_t;
mjw@1623 134
kaf24@2787 135 typedef dom0_getdomaininfo_t xc_domaininfo_t;
kaf24@9660 136 int xc_domain_create(int xc_handle,
kaf24@7339 137 uint32_t ssidref,
kaf24@7378 138 xen_domain_handle_t handle,
kaf24@7339 139 uint32_t *pdomid);
iap10@3443 140
kaf24@4719 141
kaf24@9221 142 /* Functions to produce a dump of a given domain
kaf24@9221 143 * xc_domain_dumpcore - produces a dump to a specified file
kaf24@9221 144 * xc_domain_dumpcore_via_callback - produces a dump, using a specified
kaf24@9221 145 * callback function
kaf24@9221 146 */
kaf24@9660 147 int xc_domain_dumpcore(int xc_handle,
kaf24@7339 148 uint32_t domid,
cl349@4853 149 const char *corename);
kaf24@4719 150
kaf24@9221 151 /* Define the callback function type for xc_domain_dumpcore_via_callback.
kaf24@9221 152 *
kaf24@9221 153 * This function is called by the coredump code for every "write",
kaf24@9221 154 * and passes an opaque object for the use of the function and
kaf24@9221 155 * created by the caller of xc_domain_dumpcore_via_callback.
kaf24@9221 156 */
kaf24@9221 157 typedef int (dumpcore_rtn_t)(void *arg, char *buffer, unsigned int length);
kaf24@9221 158
kaf24@9660 159 int xc_domain_dumpcore_via_callback(int xc_handle,
kaf24@9221 160 uint32_t domid,
kaf24@9221 161 void *arg,
kaf24@9221 162 dumpcore_rtn_t dump_rtn);
kaf24@9221 163
kaf24@7354 164 /*
kaf24@7566 165 * This function sets the maximum number of vcpus that a domain may create.
kaf24@7354 166 *
kaf24@7354 167 * @parm xc_handle a handle to an open hypervisor interface.
kaf24@7354 168 * @parm domid the domain id in which vcpus are to be created.
kaf24@7354 169 * @parm max the maximum number of vcpus that the domain may create.
kaf24@7354 170 * @return 0 on success, -1 on failure.
kaf24@7354 171 */
kaf24@7354 172 int xc_domain_max_vcpus(int xc_handle,
kaf24@9660 173 uint32_t domid,
kaf24@7354 174 unsigned int max);
kaf24@4719 175
iap10@3443 176 /**
iap10@3443 177 * This function pauses a domain. A paused domain still exists in memory
iap10@3443 178 * however it does not receive any timeslices from the hypervisor.
iap10@3443 179 *
iap10@3443 180 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 181 * @parm domid the domain id to pause
iap10@3443 182 * @return 0 on success, -1 on failure.
iap10@3443 183 */
kaf24@9660 184 int xc_domain_pause(int xc_handle,
kaf24@7339 185 uint32_t domid);
iap10@3443 186 /**
iap10@3443 187 * This function unpauses a domain. The domain should have been previously
iap10@3443 188 * paused.
iap10@3443 189 *
iap10@3443 190 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 191 * @parm domid the domain id to unpause
iap10@3443 192 * return 0 on success, -1 on failure
iap10@3443 193 */
kaf24@9660 194 int xc_domain_unpause(int xc_handle,
kaf24@7339 195 uint32_t domid);
iap10@3443 196
iap10@3443 197 /**
iap10@3443 198 * This function will destroy a domain. Destroying a domain removes the domain
iap10@3443 199 * completely from memory. This function should be called after sending the
iap10@3443 200 * domain a SHUTDOWN control message to free up the domain resources.
iap10@3443 201 *
iap10@3443 202 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 203 * @parm domid the domain id to destroy
iap10@3443 204 * @return 0 on success, -1 on failure
iap10@3443 205 */
kaf24@9660 206 int xc_domain_destroy(int xc_handle,
kaf24@7339 207 uint32_t domid);
kaf24@8500 208
kaf24@9560 209 /**
kaf24@9560 210 * This function will shutdown a domain. This is intended for use in
kaf24@9560 211 * fully-virtualized domains where this operation is analogous to the
kaf24@9560 212 * sched_op operations in a paravirtualized domain. The caller is
kaf24@9560 213 * expected to give the reason for the shutdown.
kaf24@9560 214 *
kaf24@9560 215 * @parm xc_handle a handle to an open hypervisor interface
kaf24@9560 216 * @parm domid the domain id to destroy
kaf24@9560 217 * @parm reason is the reason (SHUTDOWN_xxx) for the shutdown
kaf24@9560 218 * @return 0 on success, -1 on failure
kaf24@9560 219 */
kaf24@9660 220 int xc_domain_shutdown(int xc_handle,
kaf24@9560 221 uint32_t domid,
kaf24@9560 222 int reason);
kaf24@9560 223
kaf24@8500 224 int xc_vcpu_setaffinity(int xc_handle,
kaf24@8500 225 uint32_t domid,
kaf24@8500 226 int vcpu,
kaf24@8500 227 cpumap_t cpumap);
kaf24@7378 228
iap10@3443 229 /**
dsteklof@5498 230 * This function will return information about one or more domains. It is
dsteklof@5498 231 * designed to iterate over the list of domains. If a single domain is
dsteklof@5498 232 * requested, this function will return the next domain in the list - if
dsteklof@5498 233 * one exists. It is, therefore, important in this case to make sure the
dsteklof@5498 234 * domain requested was the one returned.
iap10@3443 235 *
iap10@3443 236 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 237 * @parm first_domid the first domain to enumerate information from. Domains
iap10@3443 238 * are currently enumerate in order of creation.
iap10@3443 239 * @parm max_doms the number of elements in info
iap10@3443 240 * @parm info an array of max_doms size that will contain the information for
iap10@3443 241 * the enumerated domains.
iap10@3443 242 * @return the number of domains enumerated or -1 on error
iap10@3443 243 */
mjw@1623 244 int xc_domain_getinfo(int xc_handle,
kaf24@9660 245 uint32_t first_domid,
mjw@1623 246 unsigned int max_doms,
mjw@1623 247 xc_dominfo_t *info);
iap10@3443 248
kaf24@8381 249
kaf24@8381 250 /**
kaf24@8500 251 * This function will set the execution context for the specified vcpu.
kaf24@8381 252 *
kaf24@8381 253 * @parm xc_handle a handle to an open hypervisor interface
kaf24@8381 254 * @parm domid the domain to set the vcpu context for
kaf24@8381 255 * @parm vcpu the vcpu number for the context
kaf24@8381 256 * @parm ctxt pointer to the the cpu context with the values to set
kaf24@8381 257 * @return the number of domains enumerated or -1 on error
kaf24@8381 258 */
kaf24@8500 259 int xc_vcpu_setcontext(int xc_handle,
kaf24@8500 260 uint32_t domid,
kaf24@8500 261 uint32_t vcpu,
kaf24@8500 262 vcpu_guest_context_t *ctxt);
iap10@3443 263 /**
kaf24@5699 264 * This function will return information about one or more domains, using a
kaf24@5699 265 * single hypercall. The domain information will be stored into the supplied
kaf24@5699 266 * array of xc_domaininfo_t structures.
kaf24@5699 267 *
kaf24@5699 268 * @parm xc_handle a handle to an open hypervisor interface
kaf24@5699 269 * @parm first_domain the first domain to enumerate information from.
kaf24@5699 270 * Domains are currently enumerate in order of creation.
kaf24@5699 271 * @parm max_domains the number of elements in info
kaf24@5699 272 * @parm info an array of max_doms size that will contain the information for
kaf24@5699 273 * the enumerated domains.
kaf24@5699 274 * @return the number of domains enumerated or -1 on error
kaf24@5699 275 */
kaf24@5699 276 int xc_domain_getinfolist(int xc_handle,
kaf24@7339 277 uint32_t first_domain,
kaf24@5699 278 unsigned int max_domains,
kaf24@5699 279 xc_domaininfo_t *info);
kaf24@5699 280
kaf24@5699 281 /**
emellor@7404 282 * This function returns information about the execution context of a
emellor@7404 283 * particular vcpu of a domain.
iap10@3443 284 *
iap10@3443 285 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 286 * @parm domid the domain to get information from
emellor@7404 287 * @parm vcpu the vcpu number
iap10@3443 288 * @parm ctxt a pointer to a structure to store the execution context of the
iap10@3443 289 * domain
iap10@3443 290 * @return 0 on success, -1 on failure
iap10@3443 291 */
kaf24@8500 292 int xc_vcpu_getcontext(int xc_handle,
kaf24@7339 293 uint32_t domid,
kaf24@7339 294 uint32_t vcpu,
cl349@4853 295 vcpu_guest_context_t *ctxt);
cl349@4849 296
kaf24@7397 297 typedef dom0_getvcpuinfo_t xc_vcpuinfo_t;
kaf24@8500 298 int xc_vcpu_getinfo(int xc_handle,
kaf24@8500 299 uint32_t domid,
kaf24@8500 300 uint32_t vcpu,
kaf24@8500 301 xc_vcpuinfo_t *info);
kaf24@7397 302
gm281@2236 303 int xc_domain_setcpuweight(int xc_handle,
kaf24@7339 304 uint32_t domid,
gm281@2236 305 float weight);
kaf24@2787 306 long long xc_domain_get_cpu_usage(int xc_handle,
mafetter@3435 307 domid_t domid,
mafetter@3435 308 int vcpu);
mjw@1623 309
kaf24@9660 310 int xc_domain_sethandle(int xc_handle, uint32_t domid,
kaf24@7379 311 xen_domain_handle_t handle);
kaf24@2787 312
kaf24@2787 313 typedef dom0_shadow_control_stats_t xc_shadow_control_stats_t;
mjw@1623 314 int xc_shadow_control(int xc_handle,
kaf24@9660 315 uint32_t domid,
mjw@1623 316 unsigned int sop,
mjw@1623 317 unsigned long *dirty_bitmap,
mjw@1623 318 unsigned long pages,
mjw@1623 319 xc_shadow_control_stats_t *stats);
mjw@1623 320
mjw@1623 321 int xc_bvtsched_global_set(int xc_handle,
mjw@1623 322 unsigned long ctx_allow);
mjw@1623 323
mjw@1623 324 int xc_bvtsched_domain_set(int xc_handle,
kaf24@7339 325 uint32_t domid,
kaf24@7339 326 uint32_t mcuadv,
gm281@2058 327 int warpback,
kaf24@7339 328 int32_t warpvalue,
gm281@2058 329 long long warpl,
gm281@2058 330 long long warpu);
mjw@1623 331
mjw@1623 332 int xc_bvtsched_global_get(int xc_handle,
mjw@1623 333 unsigned long *ctx_allow);
mjw@1623 334
mjw@1623 335 int xc_bvtsched_domain_get(int xc_handle,
kaf24@7339 336 uint32_t domid,
kaf24@7339 337 uint32_t *mcuadv,
gm281@2058 338 int *warpback,
kaf24@7339 339 int32_t *warpvalue,
gm281@2058 340 long long *warpl,
gm281@2058 341 long long *warpu);
mjw@1623 342
sd386@3449 343 int xc_sedf_domain_set(int xc_handle,
kaf24@7339 344 uint32_t domid,
kaf24@7339 345 uint64_t period, uint64_t slice,
kaf24@7339 346 uint64_t latency, uint16_t extratime,
kaf24@7339 347 uint16_t weight);
sd386@3449 348
sd386@3449 349 int xc_sedf_domain_get(int xc_handle,
kaf24@7339 350 uint32_t domid,
kaf24@7339 351 uint64_t* period, uint64_t *slice,
kaf24@7339 352 uint64_t *latency, uint16_t *extratime,
kaf24@7339 353 uint16_t *weight);
sd386@3449 354
kaf24@2787 355 typedef evtchn_status_t xc_evtchn_status_t;
iap10@3443 356
kaf24@3961 357 /*
iap10@3443 358 * EVENT CHANNEL FUNCTIONS
kaf24@3961 359 */
iap10@3443 360
iap10@3443 361 /**
iap10@3443 362 * This function allocates an unbound port. Ports are named endpoints used for
iap10@3443 363 * interdomain communication. This function is most useful in opening a
iap10@3443 364 * well-known port within a domain to receive events on.
iap10@3443 365 *
iap10@3443 366 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7223 367 * @parm dom the ID of the local domain (the 'allocatee')
kaf24@7237 368 * @parm remote_dom the ID of the domain who will later bind
kaf24@7237 369 * @return allocated port (in @dom) on success, -1 on failure
iap10@3443 370 */
kaf24@2713 371 int xc_evtchn_alloc_unbound(int xc_handle,
kaf24@7339 372 uint32_t dom,
kaf24@7339 373 uint32_t remote_dom);
iap10@3443 374
mjw@1623 375 int xc_evtchn_status(int xc_handle,
kaf24@7339 376 uint32_t dom, /* may be DOMID_SELF */
kaf24@8151 377 evtchn_port_t port,
mjw@1623 378 xc_evtchn_status_t *status);
mjw@1623 379
mjw@1623 380 int xc_physdev_pci_access_modify(int xc_handle,
kaf24@7339 381 uint32_t domid,
mjw@1623 382 int bus,
mjw@1623 383 int dev,
mjw@1623 384 int func,
mjw@1623 385 int enable);
mjw@1623 386
mjw@1623 387 int xc_readconsolering(int xc_handle,
kaf24@5327 388 char **pbuffer,
kaf24@9660 389 unsigned int *pnr_chars,
mjw@1623 390 int clear);
mjw@1623 391
kaf24@2787 392 typedef dom0_physinfo_t xc_physinfo_t;
mjw@1623 393 int xc_physinfo(int xc_handle,
mjw@1623 394 xc_physinfo_t *info);
mjw@1623 395
gm281@2236 396 int xc_sched_id(int xc_handle,
gm281@2236 397 int *sched_id);
gm281@2236 398
mjw@1623 399 int xc_domain_setmaxmem(int xc_handle,
kaf24@9660 400 uint32_t domid,
kaf24@3231 401 unsigned int max_memkb);
mjw@1623 402
cl349@5045 403 int xc_domain_memory_increase_reservation(int xc_handle,
kaf24@9660 404 uint32_t domid,
iap10@6688 405 unsigned long nr_extents,
iap10@6682 406 unsigned int extent_order,
iap10@6688 407 unsigned int address_bits,
kaf24@9221 408 unsigned long *extent_start);
iap10@6688 409
iap10@6688 410 int xc_domain_memory_decrease_reservation(int xc_handle,
kaf24@9660 411 uint32_t domid,
iap10@6688 412 unsigned long nr_extents,
iap10@6688 413 unsigned int extent_order,
kaf24@9221 414 unsigned long *extent_start);
iap10@6688 415
kaf24@8856 416 int xc_domain_memory_populate_physmap(int xc_handle,
kaf24@8856 417 uint32_t domid,
kaf24@8856 418 unsigned long nr_extents,
kaf24@8856 419 unsigned int extent_order,
kaf24@8856 420 unsigned int address_bits,
kaf24@8856 421 unsigned long *extent_start);
kaf24@8856 422
kaf24@8856 423 int xc_domain_translate_gpfn_list(int xc_handle,
kaf24@8856 424 uint32_t domid,
kaf24@8856 425 unsigned long nr_gpfns,
kaf24@8856 426 unsigned long *gpfn_list,
kaf24@8856 427 unsigned long *mfn_list);
kaf24@8856 428
kaf24@7624 429 int xc_domain_ioport_permission(int xc_handle,
kaf24@7624 430 uint32_t domid,
kaf24@8121 431 uint32_t first_port,
kaf24@8121 432 uint32_t nr_ports,
kaf24@8121 433 uint32_t allow_access);
kaf24@7624 434
kaf24@8460 435 int xc_domain_irq_permission(int xc_handle,
kaf24@8460 436 uint32_t domid,
kaf24@8460 437 uint8_t pirq,
kaf24@8460 438 uint8_t allow_access);
kaf24@8460 439
kaf24@8460 440 int xc_domain_iomem_permission(int xc_handle,
kaf24@8460 441 uint32_t domid,
kaf24@8736 442 unsigned long first_mfn,
kaf24@8736 443 unsigned long nr_mfns,
kaf24@8460 444 uint8_t allow_access);
kaf24@8460 445
kaf24@9660 446 unsigned long xc_make_page_below_4G(int xc_handle, uint32_t domid,
kaf24@9221 447 unsigned long mfn);
cl349@5045 448
kaf24@3231 449 typedef dom0_perfc_desc_t xc_perfc_desc_t;
kaf24@3231 450 /* IMPORTANT: The caller is responsible for mlock()'ing the @desc array. */
kaf24@3231 451 int xc_perfc_control(int xc_handle,
kaf24@7339 452 uint32_t op,
kaf24@3231 453 xc_perfc_desc_t *desc);
mjw@1623 454
rneugeba@3963 455 /* read/write msr */
rneugeba@3963 456 long long xc_msr_read(int xc_handle, int cpu_mask, int msr);
rneugeba@3963 457 int xc_msr_write(int xc_handle, int cpu_mask, int msr, unsigned int low,
rneugeba@3963 458 unsigned int high);
rneugeba@3963 459
iap10@3443 460 /**
iap10@3443 461 * Memory maps a range within one domain to a local address range. Mappings
iap10@3443 462 * should be unmapped with munmap and should follow the same rules as mmap
rusty@4866 463 * regarding page alignment. Returns NULL on failure.
iap10@3443 464 *
iap10@3443 465 * In Linux, the ring queue for the control channel is accessible by mapping
iap10@3443 466 * the shared_info_frame (from xc_domain_getinfo()) + 2048. The structure
iap10@3443 467 * stored there is of type control_if_t.
iap10@3443 468 *
iap10@3443 469 * @parm xc_handle a handle on an open hypervisor interface
iap10@3443 470 * @parm dom the domain to map memory from
iap10@3443 471 * @parm size the amount of memory to map (in multiples of page size)
iap10@3443 472 * @parm prot same flag as in mmap().
iap10@3443 473 * @parm mfn the frame address to map.
iap10@3443 474 */
kaf24@7339 475 void *xc_map_foreign_range(int xc_handle, uint32_t dom,
iap10@2325 476 int size, int prot,
iap10@2325 477 unsigned long mfn );
iap10@2325 478
kaf24@7339 479 void *xc_map_foreign_batch(int xc_handle, uint32_t dom, int prot,
iap10@2325 480 unsigned long *arr, int num );
iap10@2325 481
Ian@8435 482 /**
Ian@8435 483 * Translates a virtual address in the context of a given domain and
Ian@8435 484 * vcpu returning the machine page frame number of the associated
Ian@8435 485 * page.
Ian@8435 486 *
Ian@8435 487 * @parm xc_handle a handle on an open hypervisor interface
Ian@8435 488 * @parm dom the domain to perform the translation in
Ian@8435 489 * @parm vcpu the vcpu to perform the translation on
Ian@8435 490 * @parm virt the virtual address to translate
Ian@8435 491 */
Ian@8435 492 unsigned long xc_translate_foreign_address(int xc_handle, uint32_t dom,
kaf24@9221 493 int vcpu, unsigned long long virt);
Ian@8435 494
kaf24@9660 495 int xc_get_pfn_list(int xc_handle, uint32_t domid, unsigned long *pfn_buf,
cl349@4853 496 unsigned long max_pfns);
iap10@3390 497
kaf24@7339 498 int xc_ia64_get_pfn_list(int xc_handle, uint32_t domid,
kaf24@9660 499 unsigned long *pfn_buf,
kaf24@7339 500 unsigned int start_page, unsigned int nr_pages);
kaf24@5914 501
djm@7536 502 int xc_copy_to_domain_page(int xc_handle, uint32_t domid,
kaf24@9221 503 unsigned long dst_pfn, const char *src_page);
djm@7536 504
kaf24@7786 505 int xc_clear_domain_page(int xc_handle, uint32_t domid,
kaf24@7786 506 unsigned long dst_pfn);
kaf24@7786 507
djm@7536 508 int xc_ia64_copy_to_domain_pages(int xc_handle, uint32_t domid,
djm@7536 509 void* src_page, unsigned long dst_pfn, int nr_pages);
djm@7536 510
kaf24@7339 511 long xc_get_max_pages(int xc_handle, uint32_t domid);
djm@6856 512
cl349@6389 513 int xc_mmuext_op(int xc_handle, struct mmuext_op *op, unsigned int nr_ops,
kaf24@9221 514 domid_t dom);
cl349@6389 515
kaf24@6468 516 int xc_memory_op(int xc_handle, int cmd, void *arg);
cl349@6389 517
kaf24@7339 518 int xc_get_pfn_type_batch(int xc_handle, uint32_t dom,
kaf24@7339 519 int num, unsigned long *arr);
cl349@6389 520
cl349@6389 521
kaf24@5318 522 /* Get current total pages allocated to a domain. */
kaf24@7339 523 long xc_get_tot_pages(int xc_handle, uint32_t domid);
kaf24@5318 524
kaf24@7566 525
kaf24@7566 526 /*
kaf24@7566 527 * Trace Buffer Operations
kaf24@7566 528 */
kaf24@7566 529
kaf24@7566 530 /**
kaf24@7566 531 * This function enables or disables tracing. Trace buffer memory must
kaf24@7566 532 * be already allocated by setting the size to a non-zero value, otherwise
kaf24@7566 533 * tracing cannot be enabled.
kaf24@7566 534 *
kaf24@7566 535 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7566 536 * @parm enable the desired action, 1 for enable, 0 for disable
kaf24@7566 537 * @return 0 on success, -1 on failure.
kaf24@7566 538 */
kaf24@7566 539 int xc_tbuf_enable(int xc_handle, int enable);
kaf24@7566 540
kaf24@7566 541 /**
kaf24@7571 542 * This function sets the size of the trace buffers. Setting the size
kaf24@7571 543 * is currently a one-shot operation that may be performed either at boot
kaf24@7571 544 * time or via this interface, not both. The buffer size must be set before
kaf24@7571 545 * enabling tracing.
kaf24@7566 546 *
kaf24@7566 547 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7566 548 * @parm size the size in pages per cpu for the trace buffers
kaf24@7566 549 * @return 0 on success, -1 on failure.
kaf24@7566 550 */
kaf24@7566 551 int xc_tbuf_set_size(int xc_handle, uint32_t size);
kaf24@7566 552
kaf24@7566 553 /**
kaf24@9660 554 * This function retrieves the current size of the trace buffers.
kaf24@7566 555 * Note that the size returned is in terms of bytes, not pages.
kaf24@7566 556
kaf24@7566 557 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7566 558 * @parm size will contain the size in bytes for the trace buffers
kaf24@7566 559 * @return 0 on success, -1 on failure.
kaf24@7566 560 */
kaf24@7566 561 int xc_tbuf_get_size(int xc_handle, uint32_t *size);
kaf24@7566 562
kaf24@7566 563
kaf24@5318 564 /* Execute a privileged dom0 operation. */
kaf24@5318 565 int xc_dom0_op(int xc_handle, dom0_op_t *op);
cwc22@3985 566
vh249@6549 567 int xc_version(int xc_handle, int cmd, void *arg);
vh249@6549 568
cl349@6389 569 /*
cl349@6389 570 * MMU updates.
cl349@6389 571 */
cl349@6389 572 #define MAX_MMU_UPDATES 1024
cl349@6389 573 struct xc_mmu {
cl349@6389 574 mmu_update_t updates[MAX_MMU_UPDATES];
cl349@6389 575 int idx;
cl349@6389 576 domid_t subject;
cl349@6389 577 };
cl349@6389 578 typedef struct xc_mmu xc_mmu_t;
cl349@6389 579 xc_mmu_t *xc_init_mmu_updates(int xc_handle, domid_t dom);
kaf24@9660 580 int xc_add_mmu_update(int xc_handle, xc_mmu_t *mmu,
iap10@6680 581 unsigned long long ptr, unsigned long long val);
cl349@6389 582 int xc_finish_mmu_updates(int xc_handle, xc_mmu_t *mmu);
cl349@6389 583
cl349@6389 584 #endif