direct-io.hg

annotate tools/libxc/xenctrl.h @ 8121:58d46463413e

GNTTABOP_map_grant_ref returns error status and handle as
separate fields. Update callers for new interface. Also
use int16_t as standard error code type on all public
interfaces.

Signed-off-by: Keir Fraser <keir@xensource.com>
author kaf24@firebug.cl.cam.ac.uk
date Wed Nov 30 17:24:27 2005 +0100 (2005-11-30)
parents 20bd6f55b813
children f5b119533cc8
rev   line source
mjw@1623 1 /******************************************************************************
cl349@6388 2 * xenctrl.h
mjw@1623 3 *
mjw@1623 4 * A library for low-level access to the Xen control interfaces.
mjw@1623 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>
kaf24@8121 16 #include <xen/grant_table.h>
vh249@6549 17 #include <xen/version.h>
kaf24@2821 18 #include <xen/event_channel.h>
kaf24@7196 19 #include <xen/sched.h>
kaf24@2821 20 #include <xen/sched_ctl.h>
smh22@7702 21 #include <xen/memory.h>
kaf24@5541 22 #include <xen/acm.h>
kaf24@2787 23
kaf24@5914 24 #ifdef __ia64__
kaf24@5914 25 #define XC_PAGE_SHIFT 14
kaf24@5914 26 #else
kaf24@5914 27 #define XC_PAGE_SHIFT 12
kaf24@5914 28 #endif
kaf24@5914 29 #define XC_PAGE_SIZE (1UL << XC_PAGE_SHIFT)
kaf24@5914 30 #define XC_PAGE_MASK (~(XC_PAGE_SIZE-1))
kaf24@5914 31
kaf24@3961 32 /*
kaf24@3961 33 * DEFINITIONS FOR CPU BARRIERS
kaf24@3961 34 */
kaf24@3961 35
kaf24@3961 36 #if defined(__i386__)
kaf24@3966 37 #define mb() __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
kaf24@3966 38 #define rmb() __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
kaf24@3966 39 #define wmb() __asm__ __volatile__ ( "" : : : "memory")
kaf24@3961 40 #elif defined(__x86_64__)
kaf24@3966 41 #define mb() __asm__ __volatile__ ( "mfence" : : : "memory")
kaf24@3966 42 #define rmb() __asm__ __volatile__ ( "lfence" : : : "memory")
kaf24@3966 43 #define wmb() __asm__ __volatile__ ( "" : : : "memory")
kaf24@5914 44 #elif defined(__ia64__)
kaf24@5914 45 /* FIXME */
kaf24@5914 46 #define mb()
kaf24@5914 47 #define rmb()
kaf24@5914 48 #define wmb()
kaf24@3961 49 #else
kaf24@3961 50 #error "Define barriers"
kaf24@3961 51 #endif
kaf24@3961 52
kaf24@3961 53 /*
iap10@3443 54 * INITIALIZATION FUNCTIONS
kaf24@3961 55 */
iap10@3443 56
iap10@3443 57 /**
iap10@3443 58 * This function opens a handle to the hypervisor interface. This function can
iap10@3443 59 * be called multiple times within a single process. Multiple processes can
iap10@3443 60 * have an open hypervisor interface at the same time.
iap10@3443 61 *
iap10@3443 62 * Each call to this function should have a corresponding call to
iap10@3443 63 * xc_interface_close().
iap10@3443 64 *
iap10@3443 65 * This function can fail if the caller does not have superuser permission or
iap10@3443 66 * if a Xen-enabled kernel is not currently running.
iap10@3443 67 *
iap10@3443 68 * @return a handle to the hypervisor interface or -1 on failure
iap10@3443 69 */
mjw@1623 70 int xc_interface_open(void);
iap10@3443 71
iap10@3443 72 /**
iap10@3443 73 * This function closes an open hypervisor interface.
iap10@3443 74 *
iap10@3443 75 * This function can fail if the handle does not represent an open interface or
iap10@3443 76 * if there were problems closing the interface.
iap10@3443 77 *
iap10@3443 78 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 79 * @return 0 on success, -1 otherwise.
iap10@3443 80 */
mjw@1623 81 int xc_interface_close(int xc_handle);
mjw@1623 82
kaf24@3961 83 /*
kaf24@4719 84 * DOMAIN DEBUGGING FUNCTIONS
kaf24@4719 85 */
kaf24@4719 86
kaf24@4719 87 typedef struct xc_core_header {
kaf24@4719 88 unsigned int xch_magic;
kaf24@4719 89 unsigned int xch_nr_vcpus;
kaf24@4719 90 unsigned int xch_nr_pages;
kaf24@4719 91 unsigned int xch_ctxt_offset;
kaf24@4719 92 unsigned int xch_index_offset;
kaf24@4719 93 unsigned int xch_pages_offset;
kaf24@4719 94 } xc_core_header_t;
kaf24@4719 95
kaf24@4719 96
kaf24@6941 97 long xc_ptrace(
kaf24@6941 98 int xc_handle,
kaf24@6941 99 enum __ptrace_request request,
kaf24@7339 100 uint32_t domid,
kaf24@6941 101 long addr,
kaf24@6941 102 long data);
kaf24@4719 103
kaf24@6941 104 long xc_ptrace_core(
kaf24@6941 105 int xc_handle,
kaf24@6941 106 enum __ptrace_request request,
kaf24@7339 107 uint32_t domid,
kaf24@6941 108 long addr,
kaf24@6941 109 long data);
kaf24@4719 110
kaf24@6941 111 int xc_waitdomain(
kaf24@6941 112 int xc_handle,
kaf24@6941 113 int domain,
kaf24@6941 114 int *status,
kaf24@6941 115 int options);
kaf24@4719 116
kaf24@6941 117 int xc_waitdomain_core(
kaf24@6941 118 int xc_handle,
kaf24@6941 119 int domain,
kaf24@6941 120 int *status,
kaf24@6941 121 int options);
kaf24@4719 122
kaf24@4719 123 /*
iap10@3443 124 * DOMAIN MANAGEMENT FUNCTIONS
kaf24@3961 125 */
iap10@3443 126
mjw@1623 127 typedef struct {
kaf24@7378 128 uint32_t domid;
kaf24@7378 129 uint32_t ssidref;
mjw@1623 130 unsigned int dying:1, crashed:1, shutdown:1,
mjw@1623 131 paused:1, blocked:1, running:1;
mjw@1623 132 unsigned int shutdown_reason; /* only meaningful if shutdown==1 */
mjw@1623 133 unsigned long nr_pages;
mjw@1623 134 unsigned long shared_info_frame;
kaf24@7378 135 uint64_t cpu_time;
mjw@1623 136 unsigned long max_memkb;
kaf24@7397 137 unsigned int nr_online_vcpus;
kaf24@7397 138 unsigned int max_vcpu_id;
kaf24@7378 139 xen_domain_handle_t handle;
mjw@1623 140 } xc_dominfo_t;
mjw@1623 141
kaf24@2787 142 typedef dom0_getdomaininfo_t xc_domaininfo_t;
mjw@1623 143 int xc_domain_create(int xc_handle,
kaf24@7339 144 uint32_t ssidref,
kaf24@7378 145 xen_domain_handle_t handle,
kaf24@7339 146 uint32_t *pdomid);
iap10@3443 147
kaf24@4719 148
kaf24@4719 149 int xc_domain_dumpcore(int xc_handle,
kaf24@7339 150 uint32_t domid,
cl349@4853 151 const char *corename);
kaf24@4719 152
kaf24@7354 153 /*
kaf24@7566 154 * This function sets the maximum number of vcpus that a domain may create.
kaf24@7354 155 *
kaf24@7354 156 * @parm xc_handle a handle to an open hypervisor interface.
kaf24@7354 157 * @parm domid the domain id in which vcpus are to be created.
kaf24@7354 158 * @parm max the maximum number of vcpus that the domain may create.
kaf24@7354 159 * @return 0 on success, -1 on failure.
kaf24@7354 160 */
kaf24@7354 161 int xc_domain_max_vcpus(int xc_handle,
kaf24@7354 162 uint32_t domid,
kaf24@7354 163 unsigned int max);
kaf24@4719 164
iap10@3443 165 /**
iap10@3443 166 * This function pauses a domain. A paused domain still exists in memory
iap10@3443 167 * however it does not receive any timeslices from the hypervisor.
iap10@3443 168 *
iap10@3443 169 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 170 * @parm domid the domain id to pause
iap10@3443 171 * @return 0 on success, -1 on failure.
iap10@3443 172 */
mjw@1623 173 int xc_domain_pause(int xc_handle,
kaf24@7339 174 uint32_t domid);
iap10@3443 175 /**
iap10@3443 176 * This function unpauses a domain. The domain should have been previously
iap10@3443 177 * paused.
iap10@3443 178 *
iap10@3443 179 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 180 * @parm domid the domain id to unpause
iap10@3443 181 * return 0 on success, -1 on failure
iap10@3443 182 */
mjw@1623 183 int xc_domain_unpause(int xc_handle,
kaf24@7339 184 uint32_t domid);
iap10@3443 185
iap10@3443 186 /**
iap10@3443 187 * This function will destroy a domain. Destroying a domain removes the domain
iap10@3443 188 * completely from memory. This function should be called after sending the
iap10@3443 189 * domain a SHUTDOWN control message to free up the domain resources.
iap10@3443 190 *
iap10@3443 191 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 192 * @parm domid the domain id to destroy
iap10@3443 193 * @return 0 on success, -1 on failure
iap10@3443 194 */
mjw@1623 195 int xc_domain_destroy(int xc_handle,
kaf24@7339 196 uint32_t domid);
mjw@1623 197 int xc_domain_pincpu(int xc_handle,
kaf24@7339 198 uint32_t domid,
cl349@4845 199 int vcpu,
kaf24@7378 200 cpumap_t cpumap);
kaf24@7378 201
iap10@3443 202 /**
dsteklof@5498 203 * This function will return information about one or more domains. It is
dsteklof@5498 204 * designed to iterate over the list of domains. If a single domain is
dsteklof@5498 205 * requested, this function will return the next domain in the list - if
dsteklof@5498 206 * one exists. It is, therefore, important in this case to make sure the
dsteklof@5498 207 * domain requested was the one returned.
iap10@3443 208 *
iap10@3443 209 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 210 * @parm first_domid the first domain to enumerate information from. Domains
iap10@3443 211 * are currently enumerate in order of creation.
iap10@3443 212 * @parm max_doms the number of elements in info
iap10@3443 213 * @parm info an array of max_doms size that will contain the information for
iap10@3443 214 * the enumerated domains.
iap10@3443 215 * @return the number of domains enumerated or -1 on error
iap10@3443 216 */
mjw@1623 217 int xc_domain_getinfo(int xc_handle,
kaf24@7339 218 uint32_t first_domid,
mjw@1623 219 unsigned int max_doms,
mjw@1623 220 xc_dominfo_t *info);
iap10@3443 221
iap10@3443 222 /**
kaf24@5699 223 * This function will return information about one or more domains, using a
kaf24@5699 224 * single hypercall. The domain information will be stored into the supplied
kaf24@5699 225 * array of xc_domaininfo_t structures.
kaf24@5699 226 *
kaf24@5699 227 * @parm xc_handle a handle to an open hypervisor interface
kaf24@5699 228 * @parm first_domain the first domain to enumerate information from.
kaf24@5699 229 * Domains are currently enumerate in order of creation.
kaf24@5699 230 * @parm max_domains the number of elements in info
kaf24@5699 231 * @parm info an array of max_doms size that will contain the information for
kaf24@5699 232 * the enumerated domains.
kaf24@5699 233 * @return the number of domains enumerated or -1 on error
kaf24@5699 234 */
kaf24@5699 235 int xc_domain_getinfolist(int xc_handle,
kaf24@7339 236 uint32_t first_domain,
kaf24@5699 237 unsigned int max_domains,
kaf24@5699 238 xc_domaininfo_t *info);
kaf24@5699 239
kaf24@5699 240 /**
emellor@7404 241 * This function returns information about the execution context of a
emellor@7404 242 * particular vcpu of a domain.
iap10@3443 243 *
iap10@3443 244 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 245 * @parm domid the domain to get information from
emellor@7404 246 * @parm vcpu the vcpu number
iap10@3443 247 * @parm ctxt a pointer to a structure to store the execution context of the
iap10@3443 248 * domain
iap10@3443 249 * @return 0 on success, -1 on failure
iap10@3443 250 */
cl349@4849 251 int xc_domain_get_vcpu_context(int xc_handle,
kaf24@7339 252 uint32_t domid,
kaf24@7339 253 uint32_t vcpu,
cl349@4853 254 vcpu_guest_context_t *ctxt);
cl349@4849 255
kaf24@7397 256 typedef dom0_getvcpuinfo_t xc_vcpuinfo_t;
kaf24@7397 257 int xc_domain_get_vcpu_info(int xc_handle,
kaf24@7397 258 uint32_t domid,
kaf24@7397 259 uint32_t vcpu,
kaf24@7397 260 xc_vcpuinfo_t *info);
kaf24@7397 261
kaf24@7397 262
gm281@2236 263 int xc_domain_setcpuweight(int xc_handle,
kaf24@7339 264 uint32_t domid,
gm281@2236 265 float weight);
kaf24@2787 266 long long xc_domain_get_cpu_usage(int xc_handle,
mafetter@3435 267 domid_t domid,
mafetter@3435 268 int vcpu);
mjw@1623 269
kaf24@7379 270 int xc_domain_sethandle(int xc_handle, uint32_t domid,
kaf24@7379 271 xen_domain_handle_t handle);
kaf24@2787 272
kaf24@2787 273 typedef dom0_shadow_control_stats_t xc_shadow_control_stats_t;
mjw@1623 274 int xc_shadow_control(int xc_handle,
kaf24@7339 275 uint32_t domid,
mjw@1623 276 unsigned int sop,
mjw@1623 277 unsigned long *dirty_bitmap,
mjw@1623 278 unsigned long pages,
mjw@1623 279 xc_shadow_control_stats_t *stats);
mjw@1623 280
mjw@1623 281 int xc_bvtsched_global_set(int xc_handle,
mjw@1623 282 unsigned long ctx_allow);
mjw@1623 283
mjw@1623 284 int xc_bvtsched_domain_set(int xc_handle,
kaf24@7339 285 uint32_t domid,
kaf24@7339 286 uint32_t mcuadv,
gm281@2058 287 int warpback,
kaf24@7339 288 int32_t warpvalue,
gm281@2058 289 long long warpl,
gm281@2058 290 long long warpu);
mjw@1623 291
mjw@1623 292 int xc_bvtsched_global_get(int xc_handle,
mjw@1623 293 unsigned long *ctx_allow);
mjw@1623 294
mjw@1623 295 int xc_bvtsched_domain_get(int xc_handle,
kaf24@7339 296 uint32_t domid,
kaf24@7339 297 uint32_t *mcuadv,
gm281@2058 298 int *warpback,
kaf24@7339 299 int32_t *warpvalue,
gm281@2058 300 long long *warpl,
gm281@2058 301 long long *warpu);
mjw@1623 302
sd386@3449 303 int xc_sedf_domain_set(int xc_handle,
kaf24@7339 304 uint32_t domid,
kaf24@7339 305 uint64_t period, uint64_t slice,
kaf24@7339 306 uint64_t latency, uint16_t extratime,
kaf24@7339 307 uint16_t weight);
sd386@3449 308
sd386@3449 309 int xc_sedf_domain_get(int xc_handle,
kaf24@7339 310 uint32_t domid,
kaf24@7339 311 uint64_t* period, uint64_t *slice,
kaf24@7339 312 uint64_t *latency, uint16_t *extratime,
kaf24@7339 313 uint16_t *weight);
sd386@3449 314
kaf24@2787 315 typedef evtchn_status_t xc_evtchn_status_t;
iap10@3443 316
kaf24@3961 317 /*
iap10@3443 318 * EVENT CHANNEL FUNCTIONS
kaf24@3961 319 */
iap10@3443 320
iap10@3443 321 /**
iap10@3443 322 * This function allocates an unbound port. Ports are named endpoints used for
iap10@3443 323 * interdomain communication. This function is most useful in opening a
iap10@3443 324 * well-known port within a domain to receive events on.
iap10@3443 325 *
iap10@3443 326 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7223 327 * @parm dom the ID of the local domain (the 'allocatee')
kaf24@7237 328 * @parm remote_dom the ID of the domain who will later bind
kaf24@7237 329 * @return allocated port (in @dom) on success, -1 on failure
iap10@3443 330 */
kaf24@2713 331 int xc_evtchn_alloc_unbound(int xc_handle,
kaf24@7339 332 uint32_t dom,
kaf24@7339 333 uint32_t remote_dom);
iap10@3443 334
mjw@1623 335 int xc_evtchn_status(int xc_handle,
kaf24@7339 336 uint32_t dom, /* may be DOMID_SELF */
mjw@1623 337 int port,
mjw@1623 338 xc_evtchn_status_t *status);
mjw@1623 339
mjw@1623 340 int xc_physdev_pci_access_modify(int xc_handle,
kaf24@7339 341 uint32_t domid,
mjw@1623 342 int bus,
mjw@1623 343 int dev,
mjw@1623 344 int func,
mjw@1623 345 int enable);
mjw@1623 346
mjw@1623 347 int xc_readconsolering(int xc_handle,
kaf24@5327 348 char **pbuffer,
kaf24@5327 349 unsigned int *pnr_chars,
mjw@1623 350 int clear);
mjw@1623 351
kaf24@2787 352 typedef dom0_physinfo_t xc_physinfo_t;
mjw@1623 353 int xc_physinfo(int xc_handle,
mjw@1623 354 xc_physinfo_t *info);
mjw@1623 355
gm281@2236 356 int xc_sched_id(int xc_handle,
gm281@2236 357 int *sched_id);
gm281@2236 358
mjw@1623 359 int xc_domain_setmaxmem(int xc_handle,
kaf24@7339 360 uint32_t domid,
kaf24@3231 361 unsigned int max_memkb);
mjw@1623 362
cl349@5045 363 int xc_domain_memory_increase_reservation(int xc_handle,
kaf24@7339 364 uint32_t domid,
iap10@6688 365 unsigned long nr_extents,
iap10@6682 366 unsigned int extent_order,
iap10@6688 367 unsigned int address_bits,
iap10@6688 368 unsigned long *extent_start);
iap10@6688 369
iap10@6688 370 int xc_domain_memory_decrease_reservation(int xc_handle,
kaf24@7339 371 uint32_t domid,
iap10@6688 372 unsigned long nr_extents,
iap10@6688 373 unsigned int extent_order,
iap10@6688 374 unsigned long *extent_start);
iap10@6688 375
kaf24@7624 376 int xc_domain_ioport_permission(int xc_handle,
kaf24@7624 377 uint32_t domid,
kaf24@8121 378 uint32_t first_port,
kaf24@8121 379 uint32_t nr_ports,
kaf24@8121 380 uint32_t allow_access);
kaf24@7624 381
kaf24@7339 382 unsigned long xc_make_page_below_4G(int xc_handle, uint32_t domid,
iap10@6688 383 unsigned long mfn);
cl349@5045 384
kaf24@3231 385 typedef dom0_perfc_desc_t xc_perfc_desc_t;
kaf24@3231 386 /* IMPORTANT: The caller is responsible for mlock()'ing the @desc array. */
kaf24@3231 387 int xc_perfc_control(int xc_handle,
kaf24@7339 388 uint32_t op,
kaf24@3231 389 xc_perfc_desc_t *desc);
mjw@1623 390
rneugeba@3963 391 /* read/write msr */
rneugeba@3963 392 long long xc_msr_read(int xc_handle, int cpu_mask, int msr);
rneugeba@3963 393 int xc_msr_write(int xc_handle, int cpu_mask, int msr, unsigned int low,
rneugeba@3963 394 unsigned int high);
rneugeba@3963 395
iap10@3443 396 /**
iap10@3443 397 * Memory maps a range within one domain to a local address range. Mappings
iap10@3443 398 * should be unmapped with munmap and should follow the same rules as mmap
rusty@4866 399 * regarding page alignment. Returns NULL on failure.
iap10@3443 400 *
iap10@3443 401 * In Linux, the ring queue for the control channel is accessible by mapping
iap10@3443 402 * the shared_info_frame (from xc_domain_getinfo()) + 2048. The structure
iap10@3443 403 * stored there is of type control_if_t.
iap10@3443 404 *
iap10@3443 405 * @parm xc_handle a handle on an open hypervisor interface
iap10@3443 406 * @parm dom the domain to map memory from
iap10@3443 407 * @parm size the amount of memory to map (in multiples of page size)
iap10@3443 408 * @parm prot same flag as in mmap().
iap10@3443 409 * @parm mfn the frame address to map.
iap10@3443 410 */
kaf24@7339 411 void *xc_map_foreign_range(int xc_handle, uint32_t dom,
iap10@2325 412 int size, int prot,
iap10@2325 413 unsigned long mfn );
iap10@2325 414
kaf24@7339 415 void *xc_map_foreign_batch(int xc_handle, uint32_t dom, int prot,
iap10@2325 416 unsigned long *arr, int num );
iap10@2325 417
kaf24@7339 418 int xc_get_pfn_list(int xc_handle, uint32_t domid, unsigned long *pfn_buf,
cl349@4853 419 unsigned long max_pfns);
iap10@3390 420
kaf24@7339 421 int xc_ia64_get_pfn_list(int xc_handle, uint32_t domid,
kaf24@7339 422 unsigned long *pfn_buf,
kaf24@7339 423 unsigned int start_page, unsigned int nr_pages);
kaf24@5914 424
djm@7536 425 int xc_copy_to_domain_page(int xc_handle, uint32_t domid,
djm@7536 426 unsigned long dst_pfn, void *src_page);
djm@7536 427
kaf24@7786 428 int xc_clear_domain_page(int xc_handle, uint32_t domid,
kaf24@7786 429 unsigned long dst_pfn);
kaf24@7786 430
djm@7536 431 int xc_ia64_copy_to_domain_pages(int xc_handle, uint32_t domid,
djm@7536 432 void* src_page, unsigned long dst_pfn, int nr_pages);
djm@7536 433
kaf24@7339 434 long xc_get_max_pages(int xc_handle, uint32_t domid);
djm@6856 435
cl349@6389 436 int xc_mmuext_op(int xc_handle, struct mmuext_op *op, unsigned int nr_ops,
cl349@6389 437 domid_t dom);
cl349@6389 438
kaf24@6468 439 int xc_memory_op(int xc_handle, int cmd, void *arg);
cl349@6389 440
kaf24@7339 441 int xc_get_pfn_type_batch(int xc_handle, uint32_t dom,
kaf24@7339 442 int num, unsigned long *arr);
cl349@6389 443
cl349@6389 444
cwc22@3985 445 /*\
cwc22@3985 446 * GRANT TABLE FUNCTIONS
cwc22@3985 447 \*/
cwc22@3985 448
cwc22@3985 449 /**
cwc22@3985 450 * This function opens a handle to the more restricted grant table hypervisor
cwc22@3985 451 * interface. This may be used where the standard interface is not
cwc22@3985 452 * available because the domain is not privileged.
cwc22@3985 453 * This function can be called multiple times within a single process.
cwc22@3985 454 * Multiple processes can have an open hypervisor interface at the same time.
cwc22@3985 455 *
cwc22@3985 456 * Each call to this function should have a corresponding call to
cwc22@3985 457 * xc_grant_interface_close().
cwc22@3985 458 *
cwc22@3985 459 * This function can fail if a Xen-enabled kernel is not currently running.
cwc22@3985 460 *
cwc22@3985 461 * @return a handle to the hypervisor grant table interface or -1 on failure
cwc22@3985 462 */
cwc22@3985 463 int xc_grant_interface_open(void);
cwc22@3985 464
cwc22@3985 465 /**
cwc22@3985 466 * This function closes an open grant table hypervisor interface.
cwc22@3985 467 *
cwc22@3985 468 * This function can fail if the handle does not represent an open interface or
cwc22@3985 469 * if there were problems closing the interface.
cwc22@3985 470 *
cwc22@3985 471 * @parm xc_handle a handle to an open grant table hypervisor interface
cwc22@3985 472 * @return 0 on success, -1 otherwise.
cwc22@3985 473 */
cwc22@3985 474 int xc_grant_interface_close(int xc_handle);
cwc22@3985 475
kaf24@7339 476 int xc_gnttab_map_grant_ref(int xc_handle,
kaf24@7339 477 uint64_t host_virt_addr,
kaf24@7339 478 uint32_t dom,
kaf24@8121 479 grant_ref_t ref,
kaf24@7339 480 uint16_t flags,
kaf24@8121 481 int16_t *status,
kaf24@8121 482 grant_handle_t *handle,
kaf24@7339 483 uint64_t *dev_bus_addr);
cwc22@3985 484
kaf24@6281 485 int xc_gnttab_unmap_grant_ref(int xc_handle,
kaf24@7339 486 uint64_t host_virt_addr,
kaf24@7339 487 uint64_t dev_bus_addr,
kaf24@8121 488 grant_handle_t handle,
kaf24@7339 489 int16_t *status);
cwc22@3985 490
cwc22@3985 491 int xc_gnttab_setup_table(int xc_handle,
kaf24@7339 492 uint32_t dom,
kaf24@7339 493 uint16_t nr_frames,
kaf24@7339 494 int16_t *status,
kaf24@6281 495 unsigned long **frame_list);
cwc22@3985 496
cwc22@3985 497 /* Grant debug builds only: */
cwc22@3985 498 int xc_gnttab_dump_table(int xc_handle,
kaf24@7339 499 uint32_t dom,
kaf24@7339 500 int16_t *status);
cwc22@3985 501
kaf24@5318 502 /* Get current total pages allocated to a domain. */
kaf24@7339 503 long xc_get_tot_pages(int xc_handle, uint32_t domid);
kaf24@5318 504
kaf24@7566 505
kaf24@7566 506 /*
kaf24@7566 507 * Trace Buffer Operations
kaf24@7566 508 */
kaf24@7566 509
kaf24@7566 510 /**
kaf24@7566 511 * This function enables or disables tracing. Trace buffer memory must
kaf24@7566 512 * be already allocated by setting the size to a non-zero value, otherwise
kaf24@7566 513 * tracing cannot be enabled.
kaf24@7566 514 *
kaf24@7566 515 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7566 516 * @parm enable the desired action, 1 for enable, 0 for disable
kaf24@7566 517 * @return 0 on success, -1 on failure.
kaf24@7566 518 */
kaf24@7566 519 int xc_tbuf_enable(int xc_handle, int enable);
kaf24@7566 520
kaf24@7566 521 /**
kaf24@7571 522 * This function sets the size of the trace buffers. Setting the size
kaf24@7571 523 * is currently a one-shot operation that may be performed either at boot
kaf24@7571 524 * time or via this interface, not both. The buffer size must be set before
kaf24@7571 525 * enabling tracing.
kaf24@7566 526 *
kaf24@7566 527 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7566 528 * @parm size the size in pages per cpu for the trace buffers
kaf24@7566 529 * @return 0 on success, -1 on failure.
kaf24@7566 530 */
kaf24@7566 531 int xc_tbuf_set_size(int xc_handle, uint32_t size);
kaf24@7566 532
kaf24@7566 533 /**
kaf24@7566 534 * This function retrieves the current size of the trace buffers.
kaf24@7566 535 * Note that the size returned is in terms of bytes, not pages.
kaf24@7566 536
kaf24@7566 537 * @parm xc_handle a handle to an open hypervisor interface
kaf24@7566 538 * @parm size will contain the size in bytes for the trace buffers
kaf24@7566 539 * @return 0 on success, -1 on failure.
kaf24@7566 540 */
kaf24@7566 541 int xc_tbuf_get_size(int xc_handle, uint32_t *size);
kaf24@7566 542
kaf24@7566 543
kaf24@5318 544 /* Execute a privileged dom0 operation. */
kaf24@5318 545 int xc_dom0_op(int xc_handle, dom0_op_t *op);
cwc22@3985 546
vh249@6549 547 int xc_version(int xc_handle, int cmd, void *arg);
vh249@6549 548
cl349@6389 549 /*
cl349@6389 550 * MMU updates.
cl349@6389 551 */
cl349@6389 552 #define MAX_MMU_UPDATES 1024
cl349@6389 553 struct xc_mmu {
cl349@6389 554 mmu_update_t updates[MAX_MMU_UPDATES];
cl349@6389 555 int idx;
cl349@6389 556 domid_t subject;
cl349@6389 557 };
cl349@6389 558 typedef struct xc_mmu xc_mmu_t;
cl349@6389 559 xc_mmu_t *xc_init_mmu_updates(int xc_handle, domid_t dom);
cl349@6389 560 int xc_add_mmu_update(int xc_handle, xc_mmu_t *mmu,
iap10@6680 561 unsigned long long ptr, unsigned long long val);
cl349@6389 562 int xc_finish_mmu_updates(int xc_handle, xc_mmu_t *mmu);
cl349@6389 563
cl349@6389 564 #endif