direct-io.hg

annotate tools/libxc/xenctrl.h @ 6688:5db85ba1c4e0

Improved "PGDs must be under 4GB" handling for PAE.
Signed-off-by: ian@xensource.com
author iap10@freefall.cl.cam.ac.uk
date Thu Sep 08 17:36:23 2005 +0000 (2005-09-08)
parents 12ff9c954ace
children 3bde4219c681
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>
iap10@3390 13
kaf24@3266 14 typedef uint8_t u8;
kaf24@3266 15 typedef uint16_t u16;
kaf24@3266 16 typedef uint32_t u32;
kaf24@3266 17 typedef uint64_t u64;
kaf24@3266 18 typedef int8_t s8;
kaf24@3266 19 typedef int16_t s16;
kaf24@3266 20 typedef int32_t s32;
kaf24@3266 21 typedef int64_t s64;
mjw@1623 22
kaf24@4719 23 #include <sys/ptrace.h>
kaf24@2821 24 #include <xen/xen.h>
kaf24@2821 25 #include <xen/dom0_ops.h>
vh249@6549 26 #include <xen/version.h>
kaf24@2821 27 #include <xen/event_channel.h>
kaf24@2821 28 #include <xen/sched_ctl.h>
kaf24@5541 29 #include <xen/acm.h>
kaf24@2787 30
kaf24@5914 31 #ifdef __ia64__
kaf24@5914 32 #define XC_PAGE_SHIFT 14
kaf24@5914 33 #else
kaf24@5914 34 #define XC_PAGE_SHIFT 12
kaf24@5914 35 #endif
kaf24@5914 36 #define XC_PAGE_SIZE (1UL << XC_PAGE_SHIFT)
kaf24@5914 37 #define XC_PAGE_MASK (~(XC_PAGE_SIZE-1))
kaf24@5914 38
kaf24@3961 39 /*
kaf24@3961 40 * DEFINITIONS FOR CPU BARRIERS
kaf24@3961 41 */
kaf24@3961 42
kaf24@3961 43 #if defined(__i386__)
kaf24@3966 44 #define mb() __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
kaf24@3966 45 #define rmb() __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
kaf24@3966 46 #define wmb() __asm__ __volatile__ ( "" : : : "memory")
kaf24@3961 47 #elif defined(__x86_64__)
kaf24@3966 48 #define mb() __asm__ __volatile__ ( "mfence" : : : "memory")
kaf24@3966 49 #define rmb() __asm__ __volatile__ ( "lfence" : : : "memory")
kaf24@3966 50 #define wmb() __asm__ __volatile__ ( "" : : : "memory")
kaf24@5914 51 #elif defined(__ia64__)
kaf24@5914 52 /* FIXME */
kaf24@5914 53 #define mb()
kaf24@5914 54 #define rmb()
kaf24@5914 55 #define wmb()
kaf24@3961 56 #else
kaf24@3961 57 #error "Define barriers"
kaf24@3961 58 #endif
kaf24@3961 59
kaf24@3961 60 /*
iap10@3443 61 * INITIALIZATION FUNCTIONS
kaf24@3961 62 */
iap10@3443 63
iap10@3443 64 /**
iap10@3443 65 * This function opens a handle to the hypervisor interface. This function can
iap10@3443 66 * be called multiple times within a single process. Multiple processes can
iap10@3443 67 * have an open hypervisor interface at the same time.
iap10@3443 68 *
iap10@3443 69 * Each call to this function should have a corresponding call to
iap10@3443 70 * xc_interface_close().
iap10@3443 71 *
iap10@3443 72 * This function can fail if the caller does not have superuser permission or
iap10@3443 73 * if a Xen-enabled kernel is not currently running.
iap10@3443 74 *
iap10@3443 75 * @return a handle to the hypervisor interface or -1 on failure
iap10@3443 76 */
mjw@1623 77 int xc_interface_open(void);
iap10@3443 78
iap10@3443 79 /**
iap10@3443 80 * This function closes an open hypervisor interface.
iap10@3443 81 *
iap10@3443 82 * This function can fail if the handle does not represent an open interface or
iap10@3443 83 * if there were problems closing the interface.
iap10@3443 84 *
iap10@3443 85 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 86 * @return 0 on success, -1 otherwise.
iap10@3443 87 */
mjw@1623 88 int xc_interface_close(int xc_handle);
mjw@1623 89
kaf24@3961 90 /*
kaf24@4719 91 * DOMAIN DEBUGGING FUNCTIONS
kaf24@4719 92 */
kaf24@4719 93
kaf24@4719 94 typedef struct xc_core_header {
kaf24@4719 95 unsigned int xch_magic;
kaf24@4719 96 unsigned int xch_nr_vcpus;
kaf24@4719 97 unsigned int xch_nr_pages;
kaf24@4719 98 unsigned int xch_ctxt_offset;
kaf24@4719 99 unsigned int xch_index_offset;
kaf24@4719 100 unsigned int xch_pages_offset;
kaf24@4719 101 } xc_core_header_t;
kaf24@4719 102
kaf24@4719 103
kaf24@4719 104 long xc_ptrace(enum __ptrace_request request,
cl349@4853 105 u32 domid,
cl349@4853 106 long addr,
cl349@4853 107 long data);
kaf24@4719 108
kaf24@4719 109 long xc_ptrace_core(enum __ptrace_request request,
cl349@4853 110 u32 domid,
cl349@4853 111 long addr,
cl349@4853 112 long data);
kaf24@4719 113
kaf24@4719 114 int xc_waitdomain(int domain,
cl349@4853 115 int *status,
cl349@4853 116 int options);
kaf24@4719 117
kaf24@4719 118 int xc_waitdomain_core(int domain,
cl349@4853 119 int *status,
cl349@4853 120 int options);
kaf24@4719 121
kaf24@4719 122 /*
iap10@3443 123 * DOMAIN MANAGEMENT FUNCTIONS
kaf24@3961 124 */
iap10@3443 125
mjw@1623 126 typedef struct {
mjw@1623 127 u32 domid;
smh22@5514 128 u32 ssidref;
mjw@1623 129 unsigned int dying:1, crashed:1, shutdown:1,
mjw@1623 130 paused:1, blocked:1, running:1;
mjw@1623 131 unsigned int shutdown_reason; /* only meaningful if shutdown==1 */
mjw@1623 132 unsigned long nr_pages;
mjw@1623 133 unsigned long shared_info_frame;
mjw@1623 134 u64 cpu_time;
mjw@1623 135 unsigned long max_memkb;
cl349@4853 136 unsigned int vcpus;
cl349@4847 137 s32 vcpu_to_cpu[MAX_VIRT_CPUS];
cl349@4845 138 cpumap_t cpumap[MAX_VIRT_CPUS];
mjw@1623 139 } xc_dominfo_t;
mjw@1623 140
kaf24@2787 141 typedef dom0_getdomaininfo_t xc_domaininfo_t;
mjw@1623 142 int xc_domain_create(int xc_handle,
smh22@5514 143 u32 ssidref,
mjw@1623 144 u32 *pdomid);
iap10@3443 145
kaf24@4719 146
kaf24@4719 147 int xc_domain_dumpcore(int xc_handle,
cl349@4853 148 u32 domid,
cl349@4853 149 const char *corename);
kaf24@4719 150
kaf24@4719 151
iap10@3443 152 /**
iap10@3443 153 * This function pauses a domain. A paused domain still exists in memory
iap10@3443 154 * however it does not receive any timeslices from the hypervisor.
iap10@3443 155 *
iap10@3443 156 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 157 * @parm domid the domain id to pause
iap10@3443 158 * @return 0 on success, -1 on failure.
iap10@3443 159 */
mjw@1623 160 int xc_domain_pause(int xc_handle,
mjw@1623 161 u32 domid);
iap10@3443 162 /**
iap10@3443 163 * This function unpauses a domain. The domain should have been previously
iap10@3443 164 * paused.
iap10@3443 165 *
iap10@3443 166 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 167 * @parm domid the domain id to unpause
iap10@3443 168 * return 0 on success, -1 on failure
iap10@3443 169 */
mjw@1623 170 int xc_domain_unpause(int xc_handle,
mjw@1623 171 u32 domid);
iap10@3443 172
iap10@3443 173 /**
iap10@3443 174 * This function will destroy a domain. Destroying a domain removes the domain
iap10@3443 175 * completely from memory. This function should be called after sending the
iap10@3443 176 * domain a SHUTDOWN control message to free up the domain resources.
iap10@3443 177 *
iap10@3443 178 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 179 * @parm domid the domain id to destroy
iap10@3443 180 * @return 0 on success, -1 on failure
iap10@3443 181 */
mjw@1623 182 int xc_domain_destroy(int xc_handle,
mjw@1623 183 u32 domid);
mjw@1623 184 int xc_domain_pincpu(int xc_handle,
mjw@1623 185 u32 domid,
cl349@4845 186 int vcpu,
cl349@4845 187 cpumap_t *cpumap);
iap10@3443 188 /**
dsteklof@5498 189 * This function will return information about one or more domains. It is
dsteklof@5498 190 * designed to iterate over the list of domains. If a single domain is
dsteklof@5498 191 * requested, this function will return the next domain in the list - if
dsteklof@5498 192 * one exists. It is, therefore, important in this case to make sure the
dsteklof@5498 193 * domain requested was the one returned.
iap10@3443 194 *
iap10@3443 195 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 196 * @parm first_domid the first domain to enumerate information from. Domains
iap10@3443 197 * are currently enumerate in order of creation.
iap10@3443 198 * @parm max_doms the number of elements in info
iap10@3443 199 * @parm info an array of max_doms size that will contain the information for
iap10@3443 200 * the enumerated domains.
iap10@3443 201 * @return the number of domains enumerated or -1 on error
iap10@3443 202 */
mjw@1623 203 int xc_domain_getinfo(int xc_handle,
mjw@1623 204 u32 first_domid,
mjw@1623 205 unsigned int max_doms,
mjw@1623 206 xc_dominfo_t *info);
iap10@3443 207
iap10@3443 208 /**
kaf24@5699 209 * This function will return information about one or more domains, using a
kaf24@5699 210 * single hypercall. The domain information will be stored into the supplied
kaf24@5699 211 * array of xc_domaininfo_t structures.
kaf24@5699 212 *
kaf24@5699 213 * @parm xc_handle a handle to an open hypervisor interface
kaf24@5699 214 * @parm first_domain the first domain to enumerate information from.
kaf24@5699 215 * Domains are currently enumerate in order of creation.
kaf24@5699 216 * @parm max_domains the number of elements in info
kaf24@5699 217 * @parm info an array of max_doms size that will contain the information for
kaf24@5699 218 * the enumerated domains.
kaf24@5699 219 * @return the number of domains enumerated or -1 on error
kaf24@5699 220 */
kaf24@5699 221 int xc_domain_getinfolist(int xc_handle,
kaf24@5699 222 u32 first_domain,
kaf24@5699 223 unsigned int max_domains,
kaf24@5699 224 xc_domaininfo_t *info);
kaf24@5699 225
kaf24@5699 226 /**
iap10@3443 227 * This function returns information about one domain. This information is
iap10@3443 228 * more detailed than the information from xc_domain_getinfo().
iap10@3443 229 *
iap10@3443 230 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 231 * @parm domid the domain to get information from
iap10@3443 232 * @parm info a pointer to an xc_domaininfo_t to store the domain information
iap10@3443 233 * @parm ctxt a pointer to a structure to store the execution context of the
iap10@3443 234 * domain
iap10@3443 235 * @return 0 on success, -1 on failure
iap10@3443 236 */
cl349@4849 237 int xc_domain_get_vcpu_context(int xc_handle,
cl349@4853 238 u32 domid,
cl349@4853 239 u32 vcpu,
cl349@4853 240 vcpu_guest_context_t *ctxt);
cl349@4849 241
gm281@2236 242 int xc_domain_setcpuweight(int xc_handle,
gm281@2236 243 u32 domid,
gm281@2236 244 float weight);
kaf24@2787 245 long long xc_domain_get_cpu_usage(int xc_handle,
mafetter@3435 246 domid_t domid,
mafetter@3435 247 int vcpu);
mjw@1623 248
kaf24@2787 249
kaf24@2787 250 typedef dom0_shadow_control_stats_t xc_shadow_control_stats_t;
mjw@1623 251 int xc_shadow_control(int xc_handle,
mjw@1623 252 u32 domid,
mjw@1623 253 unsigned int sop,
mjw@1623 254 unsigned long *dirty_bitmap,
mjw@1623 255 unsigned long pages,
mjw@1623 256 xc_shadow_control_stats_t *stats);
mjw@1623 257
mjw@1623 258 int xc_bvtsched_global_set(int xc_handle,
mjw@1623 259 unsigned long ctx_allow);
mjw@1623 260
mjw@1623 261 int xc_bvtsched_domain_set(int xc_handle,
mjw@1623 262 u32 domid,
gm281@2058 263 u32 mcuadv,
gm281@2058 264 int warpback,
gm281@2058 265 s32 warpvalue,
gm281@2058 266 long long warpl,
gm281@2058 267 long long warpu);
mjw@1623 268
mjw@1623 269 int xc_bvtsched_global_get(int xc_handle,
mjw@1623 270 unsigned long *ctx_allow);
mjw@1623 271
mjw@1623 272 int xc_bvtsched_domain_get(int xc_handle,
mjw@1623 273 u32 domid,
gm281@2058 274 u32 *mcuadv,
gm281@2058 275 int *warpback,
gm281@2058 276 s32 *warpvalue,
gm281@2058 277 long long *warpl,
gm281@2058 278 long long *warpu);
mjw@1623 279
sd386@3449 280 int xc_sedf_domain_set(int xc_handle,
sd386@3449 281 u32 domid,
sd386@3573 282 u64 period, u64 slice, u64 latency, u16 extratime, u16 weight);
sd386@3449 283
sd386@3449 284 int xc_sedf_domain_get(int xc_handle,
sd386@3449 285 u32 domid,
sd386@3573 286 u64* period, u64 *slice, u64 *latency, u16 *extratime, u16* weight);
sd386@3449 287
kaf24@2787 288 typedef evtchn_status_t xc_evtchn_status_t;
iap10@3443 289
kaf24@3961 290 /*
iap10@3443 291 * EVENT CHANNEL FUNCTIONS
kaf24@3961 292 */
iap10@3443 293
iap10@3443 294 /**
iap10@3443 295 * This function allocates an unbound port. Ports are named endpoints used for
iap10@3443 296 * interdomain communication. This function is most useful in opening a
iap10@3443 297 * well-known port within a domain to receive events on.
iap10@3443 298 *
iap10@3443 299 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 300 * @parm dom the ID of the domain. This maybe DOMID_SELF
iap10@3443 301 * @parm port a pointer to a port. This is an in/out parameter. If *port is
iap10@3443 302 * 0, then a new port will be assigned, if port is > 0 then that
iap10@3443 303 * port is allocated if the port is unallocated.
iap10@3443 304 * @return 0 on success, -1 on failure
iap10@3443 305 */
kaf24@2713 306 int xc_evtchn_alloc_unbound(int xc_handle,
kaf24@2713 307 u32 dom,
kaf24@2713 308 int *port);
iap10@3443 309
iap10@3443 310 /**
iap10@3443 311 * This function creates a pair of ports between two domains. A port can only
iap10@3443 312 * be bound once within a domain.
iap10@3443 313 *
iap10@3443 314 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 315 * @parm dom1 one of the two domains to connect. Can be DOMID_SELF.
iap10@3443 316 * @parm dom2 the other domain to connect. Can be DOMID_SELF.
iap10@3443 317 * @parm port1 an in/out parameter. If > 0, then try to connect *port. If
iap10@3443 318 * 0, then allocate a new port and store the port in *port.
iap10@3443 319 * @parm port2 the port connected on port2. This parameter behaves the same
iap10@3443 320 * way as port1.
iap10@3443 321 * @return 0 on success, -1 on error.
iap10@3443 322 */
mjw@1623 323 int xc_evtchn_bind_interdomain(int xc_handle,
iap10@3443 324 u32 dom1,
iap10@3443 325 u32 dom2,
mjw@1623 326 int *port1,
mjw@1623 327 int *port2);
mjw@1623 328 int xc_evtchn_bind_virq(int xc_handle,
mjw@1623 329 int virq,
mjw@1623 330 int *port);
iap10@3443 331
iap10@3443 332 /**
iap10@3443 333 * This function will close a single port on an event channel.
iap10@3443 334 *
iap10@3443 335 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 336 * @parm dom the domain that the port exists on. May be DOMID_SELF.
iap10@3443 337 * @parm port the port to close
iap10@3443 338 * @return 0 on success, -1 on error
iap10@3443 339 */
mjw@1623 340 int xc_evtchn_close(int xc_handle,
mjw@1623 341 u32 dom, /* may be DOMID_SELF */
mjw@1623 342 int port);
iap10@3443 343
iap10@3443 344 /**
iap10@3443 345 * This function generates a notify event on a bound port.
iap10@3443 346 *
iap10@3443 347 * Notifies can be read within Linux by opening /dev/xen/evtchn and reading
iap10@3443 348 * a 16 bit value. The result will be the port the event occurred on. When
iap10@3443 349 * events occur, the port is masked until the 16 bit port value is written back
iap10@3443 350 * to the file. When /dev/xen/evtchn is opened, it has to be bound via an
iap10@3443 351 * ioctl to each port to listen on. The ioctl for binding is _IO('E', 2). The
iap10@3443 352 * parameter is the port to listen on.
iap10@3443 353 *
iap10@3443 354 * @parm xc_handle a handle to an open hypervisor interface
iap10@3443 355 * @parm local_port the port to generate the notify on
iap10@3443 356 * @return 0 on success, -1 on error
iap10@3443 357 */
mjw@1623 358 int xc_evtchn_send(int xc_handle,
mjw@1623 359 int local_port);
mjw@1623 360 int xc_evtchn_status(int xc_handle,
mjw@1623 361 u32 dom, /* may be DOMID_SELF */
mjw@1623 362 int port,
mjw@1623 363 xc_evtchn_status_t *status);
mjw@1623 364
mjw@1623 365 int xc_physdev_pci_access_modify(int xc_handle,
mjw@1623 366 u32 domid,
mjw@1623 367 int bus,
mjw@1623 368 int dev,
mjw@1623 369 int func,
mjw@1623 370 int enable);
mjw@1623 371
mjw@1623 372 int xc_readconsolering(int xc_handle,
kaf24@5327 373 char **pbuffer,
kaf24@5327 374 unsigned int *pnr_chars,
mjw@1623 375 int clear);
mjw@1623 376
kaf24@2787 377 typedef dom0_physinfo_t xc_physinfo_t;
mjw@1623 378 int xc_physinfo(int xc_handle,
mjw@1623 379 xc_physinfo_t *info);
mjw@1623 380
gm281@2236 381 int xc_sched_id(int xc_handle,
gm281@2236 382 int *sched_id);
gm281@2236 383
mjw@1623 384 int xc_domain_setmaxmem(int xc_handle,
kaf24@3231 385 u32 domid,
kaf24@3231 386 unsigned int max_memkb);
mjw@1623 387
cl349@5045 388 int xc_domain_memory_increase_reservation(int xc_handle,
cl349@5045 389 u32 domid,
iap10@6688 390 unsigned long nr_extents,
iap10@6682 391 unsigned int extent_order,
iap10@6688 392 unsigned int address_bits,
iap10@6688 393 unsigned long *extent_start);
iap10@6688 394
iap10@6688 395 int xc_domain_memory_decrease_reservation(int xc_handle,
iap10@6688 396 u32 domid,
iap10@6688 397 unsigned long nr_extents,
iap10@6688 398 unsigned int extent_order,
iap10@6688 399 unsigned long *extent_start);
iap10@6688 400
iap10@6688 401 unsigned long xc_make_page_below_4G(int xc_handle, u32 domid,
iap10@6688 402 unsigned long mfn);
cl349@5045 403
kaf24@3231 404 typedef dom0_perfc_desc_t xc_perfc_desc_t;
kaf24@3231 405 /* IMPORTANT: The caller is responsible for mlock()'ing the @desc array. */
kaf24@3231 406 int xc_perfc_control(int xc_handle,
kaf24@3231 407 u32 op,
kaf24@3231 408 xc_perfc_desc_t *desc);
mjw@1623 409
rneugeba@3963 410 /* read/write msr */
rneugeba@3963 411 long long xc_msr_read(int xc_handle, int cpu_mask, int msr);
rneugeba@3963 412 int xc_msr_write(int xc_handle, int cpu_mask, int msr, unsigned int low,
rneugeba@3963 413 unsigned int high);
rneugeba@3963 414
iap10@3443 415 /**
iap10@3443 416 * Memory maps a range within one domain to a local address range. Mappings
iap10@3443 417 * should be unmapped with munmap and should follow the same rules as mmap
rusty@4866 418 * regarding page alignment. Returns NULL on failure.
iap10@3443 419 *
iap10@3443 420 * In Linux, the ring queue for the control channel is accessible by mapping
iap10@3443 421 * the shared_info_frame (from xc_domain_getinfo()) + 2048. The structure
iap10@3443 422 * stored there is of type control_if_t.
iap10@3443 423 *
iap10@3443 424 * @parm xc_handle a handle on an open hypervisor interface
iap10@3443 425 * @parm dom the domain to map memory from
iap10@3443 426 * @parm size the amount of memory to map (in multiples of page size)
iap10@3443 427 * @parm prot same flag as in mmap().
iap10@3443 428 * @parm mfn the frame address to map.
iap10@3443 429 */
iap10@2325 430 void *xc_map_foreign_range(int xc_handle, u32 dom,
iap10@2325 431 int size, int prot,
iap10@2325 432 unsigned long mfn );
iap10@2325 433
iap10@2325 434 void *xc_map_foreign_batch(int xc_handle, u32 dom, int prot,
iap10@2325 435 unsigned long *arr, int num );
iap10@2325 436
iap10@3390 437 int xc_get_pfn_list(int xc_handle, u32 domid, unsigned long *pfn_buf,
cl349@4853 438 unsigned long max_pfns);
iap10@3390 439
kaf24@5914 440 int xc_ia64_get_pfn_list(int xc_handle, u32 domid, unsigned long *pfn_buf,
kaf24@5914 441 unsigned int start_page, unsigned int nr_pages);
kaf24@5914 442
cl349@6389 443 int xc_mmuext_op(int xc_handle, struct mmuext_op *op, unsigned int nr_ops,
cl349@6389 444 domid_t dom);
cl349@6389 445
kaf24@6468 446 int xc_memory_op(int xc_handle, int cmd, void *arg);
cl349@6389 447
cl349@6389 448 int xc_get_pfn_type_batch(int xc_handle, u32 dom, int num, unsigned long *arr);
cl349@6389 449
cl349@6389 450
cwc22@3985 451 /*\
cwc22@3985 452 * GRANT TABLE FUNCTIONS
cwc22@3985 453 \*/
cwc22@3985 454
cwc22@3985 455 /**
cwc22@3985 456 * This function opens a handle to the more restricted grant table hypervisor
cwc22@3985 457 * interface. This may be used where the standard interface is not
cwc22@3985 458 * available because the domain is not privileged.
cwc22@3985 459 * This function can be called multiple times within a single process.
cwc22@3985 460 * Multiple processes can have an open hypervisor interface at the same time.
cwc22@3985 461 *
cwc22@3985 462 * Each call to this function should have a corresponding call to
cwc22@3985 463 * xc_grant_interface_close().
cwc22@3985 464 *
cwc22@3985 465 * This function can fail if a Xen-enabled kernel is not currently running.
cwc22@3985 466 *
cwc22@3985 467 * @return a handle to the hypervisor grant table interface or -1 on failure
cwc22@3985 468 */
cwc22@3985 469 int xc_grant_interface_open(void);
cwc22@3985 470
cwc22@3985 471 /**
cwc22@3985 472 * This function closes an open grant table hypervisor interface.
cwc22@3985 473 *
cwc22@3985 474 * This function can fail if the handle does not represent an open interface or
cwc22@3985 475 * if there were problems closing the interface.
cwc22@3985 476 *
cwc22@3985 477 * @parm xc_handle a handle to an open grant table hypervisor interface
cwc22@3985 478 * @return 0 on success, -1 otherwise.
cwc22@3985 479 */
cwc22@3985 480 int xc_grant_interface_close(int xc_handle);
cwc22@3985 481
kaf24@6281 482 int xc_gnttab_map_grant_ref(int xc_handle,
kaf24@6281 483 u64 host_virt_addr,
kaf24@6281 484 u32 dom,
kaf24@6281 485 u16 ref,
kaf24@6281 486 u16 flags,
kaf24@6281 487 s16 *handle,
kaf24@6281 488 u64 *dev_bus_addr);
cwc22@3985 489
kaf24@6281 490 int xc_gnttab_unmap_grant_ref(int xc_handle,
kaf24@6281 491 u64 host_virt_addr,
kaf24@6281 492 u64 dev_bus_addr,
kaf24@6281 493 u16 handle,
kaf24@6281 494 s16 *status);
cwc22@3985 495
cwc22@3985 496 int xc_gnttab_setup_table(int xc_handle,
cwc22@3985 497 u32 dom,
cwc22@3985 498 u16 nr_frames,
cwc22@3985 499 s16 *status,
kaf24@6281 500 unsigned long **frame_list);
cwc22@3985 501
cwc22@3985 502 /* Grant debug builds only: */
cwc22@3985 503 int xc_gnttab_dump_table(int xc_handle,
cwc22@3985 504 u32 dom,
cwc22@3985 505 s16 *status);
cwc22@3985 506
kaf24@5318 507 /* Get current total pages allocated to a domain. */
kaf24@5318 508 long xc_get_tot_pages(int xc_handle, u32 domid);
kaf24@5318 509
kaf24@5318 510 /* Execute a privileged dom0 operation. */
kaf24@5318 511 int xc_dom0_op(int xc_handle, dom0_op_t *op);
cwc22@3985 512
vh249@6549 513 int xc_version(int xc_handle, int cmd, void *arg);
vh249@6549 514
cl349@5748 515 /* Initializes the store (for dom0)
cl349@5748 516 remote_port should be the remote end of a bound interdomain channel between
cl349@5748 517 the store and dom0.
cl349@5748 518
cl349@5748 519 This function returns a shared frame that should be passed to
cl349@5748 520 xs_introduce_domain
cl349@5748 521 */
cl349@5748 522 long xc_init_store(int xc_handle, int remote_port);
cl349@5748 523
cl349@6389 524 /*
cl349@6389 525 * MMU updates.
cl349@6389 526 */
cl349@6389 527 #define MAX_MMU_UPDATES 1024
cl349@6389 528 struct xc_mmu {
cl349@6389 529 mmu_update_t updates[MAX_MMU_UPDATES];
cl349@6389 530 int idx;
cl349@6389 531 domid_t subject;
cl349@6389 532 };
cl349@6389 533 typedef struct xc_mmu xc_mmu_t;
cl349@6389 534 xc_mmu_t *xc_init_mmu_updates(int xc_handle, domid_t dom);
cl349@6389 535 int xc_add_mmu_update(int xc_handle, xc_mmu_t *mmu,
iap10@6680 536 unsigned long long ptr, unsigned long long val);
cl349@6389 537 int xc_finish_mmu_updates(int xc_handle, xc_mmu_t *mmu);
cl349@6389 538
cl349@6389 539 #endif