direct-io.hg

annotate tools/libxc/xenctrl.h @ 12694:f7b7daed94d6

[LIBXC] Add new AP{I function xc_evtchn_bind_unbound_port().
Add a comment clarifying how this function differs from
xc_evtchn_alloc_unbound().
Signed-off-by: Keir Fraser <keir@xensource.com>
author kfraser@localhost.localdomain
date Fri Dec 01 14:25:36 2006 +0000 (2006-12-01)
parents 2ae4e4e89d6d
children 2dd4569e0640
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@11393 12 /* Tell the Xen public headers we are a user-space tools build. */
kaf24@11393 13 #ifndef __XEN_TOOLS__
kaf24@11393 14 #define __XEN_TOOLS__ 1
kaf24@11393 15 #endif
kaf24@11393 16
kaf24@9999 17 #include <stddef.h>
kaf24@3266 18 #include <stdint.h>
kaf24@2821 19 #include <xen/xen.h>
kfraser@11257 20 #include <xen/domctl.h>
kfraser@11257 21 #include <xen/sysctl.h>
vh249@6549 22 #include <xen/version.h>
kaf24@2821 23 #include <xen/event_channel.h>
kaf24@7196 24 #include <xen/sched.h>
smh22@7702 25 #include <xen/memory.h>
kaf24@5541 26 #include <xen/acm.h>
kaf24@9907 27 #include <xen/acm_ops.h>
kaf24@2787 28
kaf24@5914 29 #ifdef __ia64__
kaf24@5914 30 #define XC_PAGE_SHIFT 14
kaf24@5914 31 #else
kaf24@5914 32 #define XC_PAGE_SHIFT 12
kaf24@5914 33 #endif
kaf24@5914 34 #define XC_PAGE_SIZE (1UL << XC_PAGE_SHIFT)
kaf24@5914 35 #define XC_PAGE_MASK (~(XC_PAGE_SIZE-1))
kaf24@5914 36
kaf24@3961 37 /*
kaf24@3961 38 * DEFINITIONS FOR CPU BARRIERS
kaf24@9660 39 */
kaf24@3961 40
kaf24@3961 41 #if defined(__i386__)
kaf24@3966 42 #define mb() __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
kaf24@3966 43 #define rmb() __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
kaf24@3966 44 #define wmb() __asm__ __volatile__ ( "" : : : "memory")
kaf24@3961 45 #elif defined(__x86_64__)
kaf24@3966 46 #define mb() __asm__ __volatile__ ( "mfence" : : : "memory")
kaf24@3966 47 #define rmb() __asm__ __volatile__ ( "lfence" : : : "memory")
kaf24@3966 48 #define wmb() __asm__ __volatile__ ( "" : : : "memory")
kaf24@5914 49 #elif defined(__ia64__)
kfraser@12271 50 #define mb() __asm__ __volatile__ ("mf" ::: "memory")
kfraser@12271 51 #define rmb() __asm__ __volatile__ ("mf" ::: "memory")
kfraser@12271 52 #define wmb() __asm__ __volatile__ ("mf" ::: "memory")
kaf24@10687 53 #elif defined(__powerpc__)
kaf24@10687 54 /* XXX loosen these up later */
kaf24@10687 55 #define mb() __asm__ __volatile__ ("sync" : : : "memory")
kaf24@10687 56 #define rmb() __asm__ __volatile__ ("sync" : : : "memory") /* lwsync? */
kaf24@10687 57 #define wmb() __asm__ __volatile__ ("sync" : : : "memory") /* eieio? */
kaf24@3961 58 #else
kaf24@3961 59 #error "Define barriers"
kaf24@3961 60 #endif
kaf24@3961 61
kaf24@3961 62 /*
iap10@3443 63 * INITIALIZATION FUNCTIONS
kaf24@9660 64 */
iap10@3443 65
iap10@3443 66 /**
iap10@3443 67 * This function opens a handle to the hypervisor interface. This function can
iap10@3443 68 * be called multiple times within a single process. Multiple processes can
iap10@3443 69 * have an open hypervisor interface at the same time.
iap10@3443 70 *
iap10@3443 71 * Each call to this function should have a corresponding call to
iap10@3443 72 * xc_interface_close().
iap10@3443 73 *
iap10@3443 74 * This function can fail if the caller does not have superuser permission or
iap10@3443 75 * if a Xen-enabled kernel is not currently running.
iap10@3443 76 *
iap10@3443 77 * @return a handle to the hypervisor interface or -1 on failure
iap10@3443 78 */
mjw@1623 79 int xc_interface_open(void);
iap10@3443 80
iap10@3443 81 /**
iap10@3443 82 * This function closes an open hypervisor interface.
iap10@3443 83 *
iap10@3443 84 * This function can fail if the handle does not represent an open interface or
iap10@3443 85 * if there were problems closing the interface.
iap10@3443 86 *
iap10@3443 87 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 88 * @return 0 on success, -1 otherwise.
iap10@3443 89 */
mjw@1623 90 int xc_interface_close(int xc_handle);
mjw@1623 91
kaf24@3961 92 /*
kfraser@11672 93 * KERNEL INTERFACES
kfraser@11672 94 */
kfraser@11672 95
kfraser@11672 96 /*
kfraser@11672 97 * Resolve a kernel device name (e.g., "evtchn", "blktap0") into a kernel
kfraser@11672 98 * device number. Returns -1 on error (and sets errno).
kfraser@11672 99 */
kfraser@11672 100 int xc_find_device_number(const char *name);
kfraser@11672 101
kfraser@11672 102 /*
kaf24@4719 103 * DOMAIN DEBUGGING FUNCTIONS
kaf24@4719 104 */
kaf24@4719 105
kaf24@4719 106 typedef struct xc_core_header {
kaf24@4719 107 unsigned int xch_magic;
kaf24@4719 108 unsigned int xch_nr_vcpus;
kaf24@4719 109 unsigned int xch_nr_pages;
kaf24@4719 110 unsigned int xch_ctxt_offset;
kaf24@4719 111 unsigned int xch_index_offset;
kaf24@4719 112 unsigned int xch_pages_offset;
kaf24@4719 113 } xc_core_header_t;
kaf24@4719 114
kfraser@12224 115 #define XC_CORE_MAGIC 0xF00FEBED
kfraser@12224 116 #define XC_CORE_MAGIC_HVM 0xF00FEBEE
kaf24@4719 117
kfraser@11791 118 #ifdef __linux__
kfraser@11791 119
kfraser@11791 120 #include <sys/ptrace.h>
kfraser@11791 121 #include <thread_db.h>
kfraser@11791 122
kfraser@11774 123 typedef void (*thr_ev_handler_t)(long);
kfraser@11774 124
kfraser@11774 125 void xc_register_event_handler(
kfraser@11774 126 thr_ev_handler_t h,
kfraser@11774 127 td_event_e e);
kfraser@11774 128
kfraser@11774 129 long xc_ptrace(
kfraser@11774 130 int xc_handle,
kfraser@11774 131 enum __ptrace_request request,
kfraser@11774 132 uint32_t domid,
kfraser@11774 133 long addr,
kfraser@11774 134 long data);
kfraser@11774 135
kfraser@11774 136 int xc_waitdomain(
kfraser@11774 137 int xc_handle,
kfraser@11774 138 int domain,
kfraser@11774 139 int *status,
kfraser@11774 140 int options);
kfraser@11774 141
kfraser@11774 142 #endif /* __linux__ */
kaf24@4719 143
kaf24@4719 144 /*
iap10@3443 145 * DOMAIN MANAGEMENT FUNCTIONS
kaf24@3961 146 */
iap10@3443 147
kfraser@12224 148 typedef struct xc_dominfo {
kaf24@7378 149 uint32_t domid;
kaf24@7378 150 uint32_t ssidref;
kaf24@9660 151 unsigned int dying:1, crashed:1, shutdown:1,
kfraser@12224 152 paused:1, blocked:1, running:1,
kfraser@12224 153 hvm:1;
mjw@1623 154 unsigned int shutdown_reason; /* only meaningful if shutdown==1 */
mjw@1623 155 unsigned long nr_pages;
mjw@1623 156 unsigned long shared_info_frame;
kaf24@7378 157 uint64_t cpu_time;
mjw@1623 158 unsigned long max_memkb;
kaf24@7397 159 unsigned int nr_online_vcpus;
kaf24@7397 160 unsigned int max_vcpu_id;
kaf24@7378 161 xen_domain_handle_t handle;
mjw@1623 162 } xc_dominfo_t;
mjw@1623 163
kfraser@11257 164 typedef xen_domctl_getdomaininfo_t xc_domaininfo_t;
kaf24@9660 165 int xc_domain_create(int xc_handle,
kaf24@7339 166 uint32_t ssidref,
kaf24@7378 167 xen_domain_handle_t handle,
kfraser@12196 168 uint32_t flags,
kaf24@7339 169 uint32_t *pdomid);
iap10@3443 170
kaf24@4719 171
kaf24@9221 172 /* Functions to produce a dump of a given domain
kaf24@9221 173 * xc_domain_dumpcore - produces a dump to a specified file
kaf24@9221 174 * xc_domain_dumpcore_via_callback - produces a dump, using a specified
kaf24@9221 175 * callback function
kaf24@9221 176 */
kaf24@9660 177 int xc_domain_dumpcore(int xc_handle,
kaf24@7339 178 uint32_t domid,
cl349@4853 179 const char *corename);
kaf24@4719 180
kaf24@9221 181 /* Define the callback function type for xc_domain_dumpcore_via_callback.
kaf24@9221 182 *
kaf24@9221 183 * This function is called by the coredump code for every "write",
kaf24@9221 184 * and passes an opaque object for the use of the function and
kaf24@9221 185 * created by the caller of xc_domain_dumpcore_via_callback.
kaf24@9221 186 */
kaf24@9221 187 typedef int (dumpcore_rtn_t)(void *arg, char *buffer, unsigned int length);
kaf24@9221 188
kaf24@9660 189 int xc_domain_dumpcore_via_callback(int xc_handle,
kaf24@9221 190 uint32_t domid,
kaf24@9221 191 void *arg,
kaf24@9221 192 dumpcore_rtn_t dump_rtn);
kaf24@9221 193
kaf24@7354 194 /*
kaf24@7566 195 * This function sets the maximum number of vcpus that a domain may create.
kaf24@7354 196 *
kaf24@7354 197 * @parm xc_handle a handle to an open hypervisor interface.
kaf24@7354 198 * @parm domid the domain id in which vcpus are to be created.
kaf24@7354 199 * @parm max the maximum number of vcpus that the domain may create.
kaf24@7354 200 * @return 0 on success, -1 on failure.
kaf24@7354 201 */
kaf24@7354 202 int xc_domain_max_vcpus(int xc_handle,
kaf24@9660 203 uint32_t domid,
kaf24@7354 204 unsigned int max);
kaf24@4719 205
iap10@3443 206 /**
iap10@3443 207 * This function pauses a domain. A paused domain still exists in memory
iap10@3443 208 * however it does not receive any timeslices from the hypervisor.
iap10@3443 209 *
iap10@3443 210 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 211 * @parm domid the domain id to pause
iap10@3443 212 * @return 0 on success, -1 on failure.
iap10@3443 213 */
kaf24@9660 214 int xc_domain_pause(int xc_handle,
kaf24@7339 215 uint32_t domid);
iap10@3443 216 /**
iap10@3443 217 * This function unpauses a domain. The domain should have been previously
iap10@3443 218 * paused.
iap10@3443 219 *
iap10@3443 220 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 221 * @parm domid the domain id to unpause
iap10@3443 222 * return 0 on success, -1 on failure
iap10@3443 223 */
kaf24@9660 224 int xc_domain_unpause(int xc_handle,
kaf24@7339 225 uint32_t domid);
iap10@3443 226
iap10@3443 227 /**
iap10@3443 228 * This function will destroy a domain. Destroying a domain removes the domain
iap10@3443 229 * completely from memory. This function should be called after sending the
iap10@3443 230 * domain a SHUTDOWN control message to free up the domain resources.
iap10@3443 231 *
iap10@3443 232 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 233 * @parm domid the domain id to destroy
iap10@3443 234 * @return 0 on success, -1 on failure
iap10@3443 235 */
kaf24@9660 236 int xc_domain_destroy(int xc_handle,
kaf24@7339 237 uint32_t domid);
kaf24@8500 238
kaf24@9560 239 /**
kaf24@9560 240 * This function will shutdown a domain. This is intended for use in
kaf24@9560 241 * fully-virtualized domains where this operation is analogous to the
kaf24@9560 242 * sched_op operations in a paravirtualized domain. The caller is
kaf24@9560 243 * expected to give the reason for the shutdown.
kaf24@9560 244 *
kaf24@9560 245 * @parm xc_handle a handle to an open hypervisor interface
kaf24@9560 246 * @parm domid the domain id to destroy
kaf24@9560 247 * @parm reason is the reason (SHUTDOWN_xxx) for the shutdown
kaf24@9560 248 * @return 0 on success, -1 on failure
kaf24@9560 249 */
kaf24@9660 250 int xc_domain_shutdown(int xc_handle,
kaf24@9560 251 uint32_t domid,
kaf24@9560 252 int reason);
kaf24@9560 253
kaf24@8500 254 int xc_vcpu_setaffinity(int xc_handle,
kaf24@8500 255 uint32_t domid,
kaf24@8500 256 int vcpu,
kfraser@11257 257 uint64_t cpumap);
kfraser@11257 258 int xc_vcpu_getaffinity(int xc_handle,
kfraser@11257 259 uint32_t domid,
kfraser@11257 260 int vcpu,
kfraser@11257 261 uint64_t *cpumap);
kaf24@7378 262
iap10@3443 263 /**
dsteklof@5498 264 * This function will return information about one or more domains. It is
dsteklof@5498 265 * designed to iterate over the list of domains. If a single domain is
dsteklof@5498 266 * requested, this function will return the next domain in the list - if
dsteklof@5498 267 * one exists. It is, therefore, important in this case to make sure the
dsteklof@5498 268 * domain requested was the one returned.
iap10@3443 269 *
iap10@3443 270 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 271 * @parm first_domid the first domain to enumerate information from. Domains
iap10@3443 272 * are currently enumerate in order of creation.
iap10@3443 273 * @parm max_doms the number of elements in info
iap10@3443 274 * @parm info an array of max_doms size that will contain the information for
iap10@3443 275 * the enumerated domains.
iap10@3443 276 * @return the number of domains enumerated or -1 on error
iap10@3443 277 */
mjw@1623 278 int xc_domain_getinfo(int xc_handle,
kaf24@9660 279 uint32_t first_domid,
mjw@1623 280 unsigned int max_doms,
mjw@1623 281 xc_dominfo_t *info);
iap10@3443 282
kaf24@8381 283
kaf24@8381 284 /**
kaf24@8500 285 * This function will set the execution context for the specified vcpu.
kaf24@8381 286 *
kaf24@8381 287 * @parm xc_handle a handle to an open hypervisor interface
kaf24@8381 288 * @parm domid the domain to set the vcpu context for
kaf24@8381 289 * @parm vcpu the vcpu number for the context
kaf24@8381 290 * @parm ctxt pointer to the the cpu context with the values to set
kaf24@8381 291 * @return the number of domains enumerated or -1 on error
kaf24@8381 292 */
kaf24@8500 293 int xc_vcpu_setcontext(int xc_handle,
kaf24@8500 294 uint32_t domid,
kaf24@8500 295 uint32_t vcpu,
kaf24@8500 296 vcpu_guest_context_t *ctxt);
iap10@3443 297 /**
kaf24@5699 298 * This function will return information about one or more domains, using a
kaf24@5699 299 * single hypercall. The domain information will be stored into the supplied
kaf24@5699 300 * array of xc_domaininfo_t structures.
kaf24@5699 301 *
kaf24@5699 302 * @parm xc_handle a handle to an open hypervisor interface
kaf24@5699 303 * @parm first_domain the first domain to enumerate information from.
kaf24@5699 304 * Domains are currently enumerate in order of creation.
kaf24@5699 305 * @parm max_domains the number of elements in info
kaf24@5699 306 * @parm info an array of max_doms size that will contain the information for
kaf24@5699 307 * the enumerated domains.
kaf24@5699 308 * @return the number of domains enumerated or -1 on error
kaf24@5699 309 */
kaf24@5699 310 int xc_domain_getinfolist(int xc_handle,
kaf24@7339 311 uint32_t first_domain,
kaf24@5699 312 unsigned int max_domains,
kaf24@5699 313 xc_domaininfo_t *info);
kaf24@5699 314
kaf24@5699 315 /**
emellor@7404 316 * This function returns information about the execution context of a
emellor@7404 317 * particular vcpu of a domain.
iap10@3443 318 *
iap10@3443 319 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 320 * @parm domid the domain to get information from
emellor@7404 321 * @parm vcpu the vcpu number
iap10@3443 322 * @parm ctxt a pointer to a structure to store the execution context of the
iap10@3443 323 * domain
iap10@3443 324 * @return 0 on success, -1 on failure
iap10@3443 325 */
kaf24@8500 326 int xc_vcpu_getcontext(int xc_handle,
kaf24@7339 327 uint32_t domid,
kaf24@7339 328 uint32_t vcpu,
cl349@4853 329 vcpu_guest_context_t *ctxt);
cl349@4849 330
kfraser@11257 331 typedef xen_domctl_getvcpuinfo_t xc_vcpuinfo_t;
kaf24@8500 332 int xc_vcpu_getinfo(int xc_handle,
kaf24@8500 333 uint32_t domid,
kaf24@8500 334 uint32_t vcpu,
kaf24@8500 335 xc_vcpuinfo_t *info);
kaf24@7397 336
gm281@2236 337 int xc_domain_setcpuweight(int xc_handle,
kaf24@7339 338 uint32_t domid,
gm281@2236 339 float weight);
kaf24@2787 340 long long xc_domain_get_cpu_usage(int xc_handle,
mafetter@3435 341 domid_t domid,
mafetter@3435 342 int vcpu);
mjw@1623 343
kaf24@9660 344 int xc_domain_sethandle(int xc_handle, uint32_t domid,
kaf24@7379 345 xen_domain_handle_t handle);
kaf24@2787 346
kfraser@11257 347 typedef xen_domctl_shadow_op_stats_t xc_shadow_op_stats_t;
mjw@1623 348 int xc_shadow_control(int xc_handle,
kaf24@9660 349 uint32_t domid,
mjw@1623 350 unsigned int sop,
mjw@1623 351 unsigned long *dirty_bitmap,
mjw@1623 352 unsigned long pages,
tdeegan@11151 353 unsigned long *mb,
tdeegan@11151 354 uint32_t mode,
kfraser@11257 355 xc_shadow_op_stats_t *stats);
mjw@1623 356
sd386@3449 357 int xc_sedf_domain_set(int xc_handle,
kaf24@7339 358 uint32_t domid,
kaf24@7339 359 uint64_t period, uint64_t slice,
kaf24@7339 360 uint64_t latency, uint16_t extratime,
kaf24@7339 361 uint16_t weight);
sd386@3449 362
sd386@3449 363 int xc_sedf_domain_get(int xc_handle,
kaf24@7339 364 uint32_t domid,
kaf24@7339 365 uint64_t* period, uint64_t *slice,
kaf24@7339 366 uint64_t *latency, uint16_t *extratime,
kaf24@7339 367 uint16_t *weight);
sd386@3449 368
kaf24@10174 369 int xc_sched_credit_domain_set(int xc_handle,
kaf24@10174 370 uint32_t domid,
kfraser@11257 371 struct xen_domctl_sched_credit *sdom);
ack@10168 372
kaf24@10174 373 int xc_sched_credit_domain_get(int xc_handle,
kaf24@10174 374 uint32_t domid,
kfraser@11257 375 struct xen_domctl_sched_credit *sdom);
ack@10168 376
kaf24@3961 377 /*
iap10@3443 378 * EVENT CHANNEL FUNCTIONS
kaf24@3961 379 */
iap10@3443 380
iap10@3443 381 /**
iap10@3443 382 * This function allocates an unbound port. Ports are named endpoints used for
iap10@3443 383 * interdomain communication. This function is most useful in opening a
iap10@3443 384 * well-known port within a domain to receive events on.
kfraser@12694 385 *
kfraser@12694 386 * NOTE: If you are allocating a *local* unbound port, you probably want to
kfraser@12694 387 * use xc_evtchn_bind_unbound_port(). This function is intended for allocating
kfraser@12694 388 * ports *only* during domain creation.
iap10@3443 389 *
iap10@3443 390 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7223 391 * @parm dom the ID of the local domain (the 'allocatee')
kaf24@7237 392 * @parm remote_dom the ID of the domain who will later bind
kaf24@7237 393 * @return allocated port (in @dom) on success, -1 on failure
iap10@3443 394 */
kaf24@2713 395 int xc_evtchn_alloc_unbound(int xc_handle,
kaf24@7339 396 uint32_t dom,
kaf24@7339 397 uint32_t remote_dom);
iap10@3443 398
mjw@1623 399 int xc_physdev_pci_access_modify(int xc_handle,
kaf24@7339 400 uint32_t domid,
mjw@1623 401 int bus,
mjw@1623 402 int dev,
mjw@1623 403 int func,
mjw@1623 404 int enable);
mjw@1623 405
mjw@1623 406 int xc_readconsolering(int xc_handle,
kaf24@5327 407 char **pbuffer,
kaf24@9660 408 unsigned int *pnr_chars,
mjw@1623 409 int clear);
mjw@1623 410
kfraser@11257 411 typedef xen_sysctl_physinfo_t xc_physinfo_t;
mjw@1623 412 int xc_physinfo(int xc_handle,
mjw@1623 413 xc_physinfo_t *info);
mjw@1623 414
gm281@2236 415 int xc_sched_id(int xc_handle,
gm281@2236 416 int *sched_id);
gm281@2236 417
mjw@1623 418 int xc_domain_setmaxmem(int xc_handle,
kaf24@9660 419 uint32_t domid,
kaf24@3231 420 unsigned int max_memkb);
mjw@1623 421
kaf24@10474 422 int xc_domain_set_time_offset(int xc_handle,
kaf24@10474 423 uint32_t domid,
kaf24@10474 424 int32_t time_offset_seconds);
kaf24@10474 425
cl349@5045 426 int xc_domain_memory_increase_reservation(int xc_handle,
kaf24@9660 427 uint32_t domid,
iap10@6688 428 unsigned long nr_extents,
iap10@6682 429 unsigned int extent_order,
iap10@6688 430 unsigned int address_bits,
kaf24@10276 431 xen_pfn_t *extent_start);
iap10@6688 432
iap10@6688 433 int xc_domain_memory_decrease_reservation(int xc_handle,
kaf24@9660 434 uint32_t domid,
iap10@6688 435 unsigned long nr_extents,
iap10@6688 436 unsigned int extent_order,
kaf24@10276 437 xen_pfn_t *extent_start);
iap10@6688 438
kaf24@8856 439 int xc_domain_memory_populate_physmap(int xc_handle,
kaf24@8856 440 uint32_t domid,
kaf24@8856 441 unsigned long nr_extents,
kaf24@8856 442 unsigned int extent_order,
kaf24@8856 443 unsigned int address_bits,
kaf24@10276 444 xen_pfn_t *extent_start);
kaf24@8856 445
kaf24@7624 446 int xc_domain_ioport_permission(int xc_handle,
kaf24@7624 447 uint32_t domid,
kaf24@8121 448 uint32_t first_port,
kaf24@8121 449 uint32_t nr_ports,
kaf24@8121 450 uint32_t allow_access);
kaf24@7624 451
kaf24@8460 452 int xc_domain_irq_permission(int xc_handle,
kaf24@8460 453 uint32_t domid,
kaf24@8460 454 uint8_t pirq,
kaf24@8460 455 uint8_t allow_access);
kaf24@8460 456
kaf24@8460 457 int xc_domain_iomem_permission(int xc_handle,
kaf24@8460 458 uint32_t domid,
kaf24@8736 459 unsigned long first_mfn,
kaf24@8736 460 unsigned long nr_mfns,
kaf24@8460 461 uint8_t allow_access);
kaf24@8460 462
kaf24@10266 463 unsigned long xc_make_page_below_4G(int xc_handle, uint32_t domid,
kaf24@10266 464 unsigned long mfn);
kaf24@10266 465
kfraser@11257 466 typedef xen_sysctl_perfc_desc_t xc_perfc_desc_t;
kfraser@11257 467 typedef xen_sysctl_perfc_val_t xc_perfc_val_t;
kaf24@10953 468 /* IMPORTANT: The caller is responsible for mlock()'ing the @desc and @val
kaf24@10953 469 arrays. */
kaf24@3231 470 int xc_perfc_control(int xc_handle,
kaf24@7339 471 uint32_t op,
kaf24@10953 472 xc_perfc_desc_t *desc,
kaf24@10953 473 xc_perfc_val_t *val,
kaf24@10953 474 int *nbr_desc,
kaf24@10953 475 int *nbr_val);
mjw@1623 476
iap10@3443 477 /**
iap10@3443 478 * Memory maps a range within one domain to a local address range. Mappings
iap10@3443 479 * should be unmapped with munmap and should follow the same rules as mmap
rusty@4866 480 * regarding page alignment. Returns NULL on failure.
iap10@3443 481 *
iap10@3443 482 * In Linux, the ring queue for the control channel is accessible by mapping
iap10@3443 483 * the shared_info_frame (from xc_domain_getinfo()) + 2048. The structure
iap10@3443 484 * stored there is of type control_if_t.
iap10@3443 485 *
iap10@3443 486 * @parm xc_handle a handle on an open hypervisor interface
iap10@3443 487 * @parm dom the domain to map memory from
iap10@3443 488 * @parm size the amount of memory to map (in multiples of page size)
iap10@3443 489 * @parm prot same flag as in mmap().
iap10@3443 490 * @parm mfn the frame address to map.
iap10@3443 491 */
kaf24@7339 492 void *xc_map_foreign_range(int xc_handle, uint32_t dom,
iap10@2325 493 int size, int prot,
iap10@2325 494 unsigned long mfn );
iap10@2325 495
kaf24@7339 496 void *xc_map_foreign_batch(int xc_handle, uint32_t dom, int prot,
kaf24@10276 497 xen_pfn_t *arr, int num );
iap10@2325 498
Ian@8435 499 /**
Ian@8435 500 * Translates a virtual address in the context of a given domain and
Ian@8435 501 * vcpu returning the machine page frame number of the associated
Ian@8435 502 * page.
Ian@8435 503 *
Ian@8435 504 * @parm xc_handle a handle on an open hypervisor interface
Ian@8435 505 * @parm dom the domain to perform the translation in
Ian@8435 506 * @parm vcpu the vcpu to perform the translation on
Ian@8435 507 * @parm virt the virtual address to translate
Ian@8435 508 */
Ian@8435 509 unsigned long xc_translate_foreign_address(int xc_handle, uint32_t dom,
kaf24@9221 510 int vcpu, unsigned long long virt);
Ian@8435 511
kaf24@10276 512 int xc_get_pfn_list(int xc_handle, uint32_t domid, xen_pfn_t *pfn_buf,
cl349@4853 513 unsigned long max_pfns);
iap10@3390 514
awilliam@12005 515 unsigned long xc_ia64_fpsr_default(void);
awilliam@12005 516
kaf24@7339 517 int xc_ia64_get_pfn_list(int xc_handle, uint32_t domid,
kaf24@10276 518 xen_pfn_t *pfn_buf,
kaf24@7339 519 unsigned int start_page, unsigned int nr_pages);
kaf24@5914 520
djm@7536 521 int xc_copy_to_domain_page(int xc_handle, uint32_t domid,
kaf24@9221 522 unsigned long dst_pfn, const char *src_page);
djm@7536 523
kaf24@7786 524 int xc_clear_domain_page(int xc_handle, uint32_t domid,
kaf24@7786 525 unsigned long dst_pfn);
kaf24@7786 526
kaf24@7339 527 long xc_get_max_pages(int xc_handle, uint32_t domid);
djm@6856 528
cl349@6389 529 int xc_mmuext_op(int xc_handle, struct mmuext_op *op, unsigned int nr_ops,
kaf24@9221 530 domid_t dom);
cl349@6389 531
kaf24@6468 532 int xc_memory_op(int xc_handle, int cmd, void *arg);
cl349@6389 533
kaf24@7339 534 int xc_get_pfn_type_batch(int xc_handle, uint32_t dom,
kaf24@7339 535 int num, unsigned long *arr);
cl349@6389 536
cl349@6389 537
kaf24@5318 538 /* Get current total pages allocated to a domain. */
kaf24@7339 539 long xc_get_tot_pages(int xc_handle, uint32_t domid);
kaf24@5318 540
kaf24@7566 541
kaf24@7566 542 /*
kaf24@7566 543 * Trace Buffer Operations
kaf24@7566 544 */
kaf24@7566 545
kaf24@7566 546 /**
kaf24@9996 547 * xc_tbuf_enable - enable tracing buffers
kaf24@7566 548 *
kaf24@7566 549 * @parm xc_handle a handle to an open hypervisor interface
kaf24@9996 550 * @parm cnt size of tracing buffers to create (in pages)
kaf24@9996 551 * @parm mfn location to store mfn of the trace buffers to
kaf24@9996 552 * @parm size location to store the size (in bytes) of a trace buffer to
kaf24@9996 553 *
kaf24@9996 554 * Gets the machine address of the trace pointer area and the size of the
kaf24@9996 555 * per CPU buffers.
kaf24@7566 556 */
kfraser@12485 557 int xc_tbuf_enable(int xc_handle, unsigned long pages,
kfraser@12485 558 unsigned long *mfn, unsigned long *size);
kaf24@9996 559
kaf24@9996 560 /*
kaf24@9996 561 * Disable tracing buffers.
kaf24@9996 562 */
kaf24@9996 563 int xc_tbuf_disable(int xc_handle);
kaf24@7566 564
kaf24@7566 565 /**
kaf24@7571 566 * This function sets the size of the trace buffers. Setting the size
kaf24@7571 567 * is currently a one-shot operation that may be performed either at boot
kaf24@7571 568 * time or via this interface, not both. The buffer size must be set before
kaf24@7571 569 * enabling tracing.
kaf24@7566 570 *
kaf24@7566 571 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7566 572 * @parm size the size in pages per cpu for the trace buffers
kaf24@7566 573 * @return 0 on success, -1 on failure.
kaf24@7566 574 */
kaf24@9996 575 int xc_tbuf_set_size(int xc_handle, unsigned long size);
kaf24@7566 576
kaf24@7566 577 /**
kaf24@9660 578 * This function retrieves the current size of the trace buffers.
kaf24@7566 579 * Note that the size returned is in terms of bytes, not pages.
kaf24@7566 580
kaf24@7566 581 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7566 582 * @parm size will contain the size in bytes for the trace buffers
kaf24@7566 583 * @return 0 on success, -1 on failure.
kaf24@7566 584 */
kaf24@9996 585 int xc_tbuf_get_size(int xc_handle, unsigned long *size);
kaf24@9907 586
kaf24@9907 587 int xc_tbuf_set_cpu_mask(int xc_handle, uint32_t mask);
kaf24@9907 588
kaf24@9907 589 int xc_tbuf_set_evt_mask(int xc_handle, uint32_t mask);
kaf24@7566 590
kfraser@11257 591 int xc_domctl(int xc_handle, struct xen_domctl *domctl);
kfraser@11257 592 int xc_sysctl(int xc_handle, struct xen_sysctl *sysctl);
cwc22@3985 593
vh249@6549 594 int xc_version(int xc_handle, int cmd, void *arg);
vh249@6549 595
cl349@6389 596 /*
cl349@6389 597 * MMU updates.
cl349@6389 598 */
cl349@6389 599 #define MAX_MMU_UPDATES 1024
cl349@6389 600 struct xc_mmu {
cl349@6389 601 mmu_update_t updates[MAX_MMU_UPDATES];
cl349@6389 602 int idx;
cl349@6389 603 domid_t subject;
cl349@6389 604 };
cl349@6389 605 typedef struct xc_mmu xc_mmu_t;
cl349@6389 606 xc_mmu_t *xc_init_mmu_updates(int xc_handle, domid_t dom);
kaf24@9660 607 int xc_add_mmu_update(int xc_handle, xc_mmu_t *mmu,
iap10@6680 608 unsigned long long ptr, unsigned long long val);
cl349@6389 609 int xc_finish_mmu_updates(int xc_handle, xc_mmu_t *mmu);
cl349@6389 610
kfraser@12485 611 int xc_acm_op(int xc_handle, int cmd, void *arg, unsigned long arg_size);
kaf24@9907 612
kaf24@10355 613 /*
kaf24@10355 614 * Return a handle to the event channel driver, or -1 on failure, in which case
kaf24@10355 615 * errno will be set appropriately.
kaf24@10355 616 */
kaf24@10355 617 int xc_evtchn_open(void);
kaf24@10355 618
kaf24@10355 619 /*
kaf24@10355 620 * Close a handle previously allocated with xc_evtchn_open().
kaf24@10355 621 */
kaf24@10355 622 int xc_evtchn_close(int xce_handle);
kaf24@10355 623
kaf24@10355 624 /*
kaf24@10355 625 * Return an fd that can be select()ed on for further calls to
kaf24@10355 626 * xc_evtchn_pending().
kaf24@10355 627 */
kaf24@10355 628 int xc_evtchn_fd(int xce_handle);
kaf24@10355 629
kaf24@10355 630 /*
kaf24@10355 631 * Notify the given event channel. Returns -1 on failure, in which case
kaf24@10355 632 * errno will be set appropriately.
kaf24@10355 633 */
kaf24@10355 634 int xc_evtchn_notify(int xce_handle, evtchn_port_t port);
kaf24@10355 635
kaf24@10355 636 /*
kfraser@12694 637 * Returns a new event port awaiting interdomain connection from the given
kfraser@12694 638 * domain ID, or -1 on failure, in which case errno will be set appropriately.
kfraser@12694 639 */
kfraser@12694 640 evtchn_port_t xc_evtchn_bind_unbound_port(int xce_handle, int domid);
kfraser@12694 641
kfraser@12694 642 /*
kaf24@10355 643 * Returns a new event port bound to the remote port for the given domain ID,
kaf24@10355 644 * or -1 on failure, in which case errno will be set appropriately.
kaf24@10355 645 */
kaf24@10355 646 evtchn_port_t xc_evtchn_bind_interdomain(int xce_handle, int domid,
kaf24@10355 647 evtchn_port_t remote_port);
kaf24@10355 648
kaf24@10355 649 /*
kaf24@10355 650 * Unbind the given event channel. Returns -1 on failure, in which case errno
kaf24@10355 651 * will be set appropriately.
kaf24@10355 652 */
kaf24@10355 653 int xc_evtchn_unbind(int xce_handle, evtchn_port_t port);
kaf24@10355 654
kaf24@10355 655 /*
kaf24@10355 656 * Bind an event channel to the given VIRQ. Returns the event channel bound to
kaf24@10355 657 * the VIRQ, or -1 on failure, in which case errno will be set appropriately.
kaf24@10355 658 */
kaf24@10355 659 evtchn_port_t xc_evtchn_bind_virq(int xce_handle, unsigned int virq);
kaf24@10355 660
kaf24@10355 661 /*
kaf24@10355 662 * Return the next event channel to become pending, or -1 on failure, in which
kaf24@10355 663 * case errno will be set appropriately.
kaf24@10355 664 */
kaf24@10355 665 evtchn_port_t xc_evtchn_pending(int xce_handle);
kaf24@10355 666
kaf24@10355 667 /*
kaf24@10355 668 * Unmask the given event channel. Returns -1 on failure, in which case errno
kaf24@10355 669 * will be set appropriately.
kaf24@10355 670 */
kaf24@10355 671 int xc_evtchn_unmask(int xce_handle, evtchn_port_t port);
kaf24@10355 672
kfraser@12504 673 int xc_hvm_set_pci_intx_level(
kfraser@12694 674 int xc_handle, domid_t dom,
kfraser@12504 675 uint8_t domain, uint8_t bus, uint8_t device, uint8_t intx,
kfraser@12504 676 unsigned int level);
kfraser@12504 677 int xc_hvm_set_isa_irq_level(
kfraser@12694 678 int xc_handle, domid_t dom,
kfraser@12504 679 uint8_t isa_irq,
kfraser@12504 680 unsigned int level);
kfraser@12504 681
kfraser@12504 682 int xc_hvm_set_pci_link_route(
kfraser@12694 683 int xc_handle, domid_t dom, uint8_t link, uint8_t isa_irq);
kfraser@12275 684
cl349@6389 685 #endif