1 | /* $Id: VMReq.cpp 85121 2020-07-08 19:33:26Z vboxsync $ */
|
---|
2 | /** @file
|
---|
3 | * VM - Virtual Machine
|
---|
4 | */
|
---|
5 |
|
---|
6 | /*
|
---|
7 | * Copyright (C) 2006-2020 Oracle Corporation
|
---|
8 | *
|
---|
9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
---|
10 | * available from http://www.virtualbox.org. This file is free software;
|
---|
11 | * you can redistribute it and/or modify it under the terms of the GNU
|
---|
12 | * General Public License (GPL) as published by the Free Software
|
---|
13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
---|
14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
---|
15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
---|
16 | */
|
---|
17 |
|
---|
18 |
|
---|
19 | /*********************************************************************************************************************************
|
---|
20 | * Header Files *
|
---|
21 | *********************************************************************************************************************************/
|
---|
22 | #define LOG_GROUP LOG_GROUP_VM
|
---|
23 | #include <VBox/vmm/mm.h>
|
---|
24 | #include <VBox/vmm/vmm.h>
|
---|
25 | #include "VMInternal.h"
|
---|
26 | #include <VBox/vmm/vm.h>
|
---|
27 | #include <VBox/vmm/uvm.h>
|
---|
28 |
|
---|
29 | #include <VBox/err.h>
|
---|
30 | #include <VBox/param.h>
|
---|
31 | #include <VBox/log.h>
|
---|
32 | #include <iprt/assert.h>
|
---|
33 | #include <iprt/asm.h>
|
---|
34 | #include <iprt/string.h>
|
---|
35 | #include <iprt/time.h>
|
---|
36 | #include <iprt/semaphore.h>
|
---|
37 | #include <iprt/thread.h>
|
---|
38 |
|
---|
39 |
|
---|
40 | /*********************************************************************************************************************************
|
---|
41 | * Internal Functions *
|
---|
42 | *********************************************************************************************************************************/
|
---|
43 | static int vmR3ReqProcessOne(PVMREQ pReq);
|
---|
44 |
|
---|
45 |
|
---|
46 | /**
|
---|
47 | * Convenience wrapper for VMR3ReqCallU.
|
---|
48 | *
|
---|
49 | * This assumes (1) you're calling a function that returns an VBox status code,
|
---|
50 | * (2) that you want it's return code on success, and (3) that you wish to wait
|
---|
51 | * for ever for it to return.
|
---|
52 | *
|
---|
53 | * @returns VBox status code. In the unlikely event that VMR3ReqCallVU fails,
|
---|
54 | * its status code is return. Otherwise, the status of pfnFunction is
|
---|
55 | * returned.
|
---|
56 | *
|
---|
57 | * @param pVM The cross context VM structure.
|
---|
58 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
59 | * one of the following special values:
|
---|
60 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
61 | * @param pfnFunction Pointer to the function to call.
|
---|
62 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
63 | * @param ... Function arguments.
|
---|
64 | *
|
---|
65 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
66 | * @internal
|
---|
67 | */
|
---|
68 | VMMR3_INT_DECL(int) VMR3ReqCallWait(PVM pVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
69 | {
|
---|
70 | PVMREQ pReq;
|
---|
71 | va_list va;
|
---|
72 | va_start(va, cArgs);
|
---|
73 | int rc = VMR3ReqCallVU(pVM->pUVM, idDstCpu, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VBOX_STATUS,
|
---|
74 | pfnFunction, cArgs, va);
|
---|
75 | va_end(va);
|
---|
76 | if (RT_SUCCESS(rc))
|
---|
77 | rc = pReq->iStatus;
|
---|
78 | VMR3ReqFree(pReq);
|
---|
79 | return rc;
|
---|
80 | }
|
---|
81 |
|
---|
82 |
|
---|
83 | /**
|
---|
84 | * Convenience wrapper for VMR3ReqCallU.
|
---|
85 | *
|
---|
86 | * This assumes (1) you're calling a function that returns an VBox status code,
|
---|
87 | * (2) that you want it's return code on success, and (3) that you wish to wait
|
---|
88 | * for ever for it to return.
|
---|
89 | *
|
---|
90 | * @returns VBox status code. In the unlikely event that VMR3ReqCallVU fails,
|
---|
91 | * its status code is return. Otherwise, the status of pfnFunction is
|
---|
92 | * returned.
|
---|
93 | *
|
---|
94 | * @param pUVM The user mode VM structure.
|
---|
95 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
96 | * one of the following special values:
|
---|
97 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
98 | * @param pfnFunction Pointer to the function to call.
|
---|
99 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
100 | * @param ... Function arguments.
|
---|
101 | *
|
---|
102 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
103 | * @internal
|
---|
104 | */
|
---|
105 | VMMR3DECL(int) VMR3ReqCallWaitU(PUVM pUVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
106 | {
|
---|
107 | PVMREQ pReq;
|
---|
108 | va_list va;
|
---|
109 | va_start(va, cArgs);
|
---|
110 | int rc = VMR3ReqCallVU(pUVM, idDstCpu, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VBOX_STATUS,
|
---|
111 | pfnFunction, cArgs, va);
|
---|
112 | va_end(va);
|
---|
113 | if (RT_SUCCESS(rc))
|
---|
114 | rc = pReq->iStatus;
|
---|
115 | VMR3ReqFree(pReq);
|
---|
116 | return rc;
|
---|
117 | }
|
---|
118 |
|
---|
119 |
|
---|
120 | /**
|
---|
121 | * Convenience wrapper for VMR3ReqCallU.
|
---|
122 | *
|
---|
123 | * This assumes (1) you're calling a function that returns an VBox status code
|
---|
124 | * and that you do not wish to wait for it to complete.
|
---|
125 | *
|
---|
126 | * @returns VBox status code returned by VMR3ReqCallVU.
|
---|
127 | *
|
---|
128 | * @param pVM The cross context VM structure.
|
---|
129 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
130 | * one of the following special values:
|
---|
131 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
132 | * @param pfnFunction Pointer to the function to call.
|
---|
133 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
134 | * @param ... Function arguments.
|
---|
135 | *
|
---|
136 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
137 | * @internal
|
---|
138 | */
|
---|
139 | VMMR3DECL(int) VMR3ReqCallNoWait(PVM pVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
140 | {
|
---|
141 | va_list va;
|
---|
142 | va_start(va, cArgs);
|
---|
143 | int rc = VMR3ReqCallVU(pVM->pUVM, idDstCpu, NULL, 0, VMREQFLAGS_VBOX_STATUS | VMREQFLAGS_NO_WAIT,
|
---|
144 | pfnFunction, cArgs, va);
|
---|
145 | va_end(va);
|
---|
146 | return rc;
|
---|
147 | }
|
---|
148 |
|
---|
149 |
|
---|
150 | /**
|
---|
151 | * Convenience wrapper for VMR3ReqCallU.
|
---|
152 | *
|
---|
153 | * This assumes (1) you're calling a function that returns an VBox status code
|
---|
154 | * and that you do not wish to wait for it to complete.
|
---|
155 | *
|
---|
156 | * @returns VBox status code returned by VMR3ReqCallVU.
|
---|
157 | *
|
---|
158 | * @param pUVM Pointer to the VM.
|
---|
159 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
160 | * one of the following special values:
|
---|
161 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
162 | * @param pfnFunction Pointer to the function to call.
|
---|
163 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
164 | * @param ... Function arguments.
|
---|
165 | *
|
---|
166 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
167 | */
|
---|
168 | VMMR3DECL(int) VMR3ReqCallNoWaitU(PUVM pUVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
169 | {
|
---|
170 | va_list va;
|
---|
171 | va_start(va, cArgs);
|
---|
172 | int rc = VMR3ReqCallVU(pUVM, idDstCpu, NULL, 0, VMREQFLAGS_VBOX_STATUS | VMREQFLAGS_NO_WAIT,
|
---|
173 | pfnFunction, cArgs, va);
|
---|
174 | va_end(va);
|
---|
175 | return rc;
|
---|
176 | }
|
---|
177 |
|
---|
178 |
|
---|
179 | /**
|
---|
180 | * Convenience wrapper for VMR3ReqCallU.
|
---|
181 | *
|
---|
182 | * This assumes (1) you're calling a function that returns void, and (2) that
|
---|
183 | * you wish to wait for ever for it to return.
|
---|
184 | *
|
---|
185 | * @returns VBox status code of VMR3ReqCallVU.
|
---|
186 | *
|
---|
187 | * @param pVM The cross context VM structure.
|
---|
188 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
189 | * one of the following special values:
|
---|
190 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
191 | * @param pfnFunction Pointer to the function to call.
|
---|
192 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
193 | * @param ... Function arguments.
|
---|
194 | *
|
---|
195 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
196 | * @internal
|
---|
197 | */
|
---|
198 | VMMR3_INT_DECL(int) VMR3ReqCallVoidWait(PVM pVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
199 | {
|
---|
200 | PVMREQ pReq;
|
---|
201 | va_list va;
|
---|
202 | va_start(va, cArgs);
|
---|
203 | int rc = VMR3ReqCallVU(pVM->pUVM, idDstCpu, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VOID,
|
---|
204 | pfnFunction, cArgs, va);
|
---|
205 | va_end(va);
|
---|
206 | VMR3ReqFree(pReq);
|
---|
207 | return rc;
|
---|
208 | }
|
---|
209 |
|
---|
210 |
|
---|
211 | /**
|
---|
212 | * Convenience wrapper for VMR3ReqCallU.
|
---|
213 | *
|
---|
214 | * This assumes (1) you're calling a function that returns void, and (2) that
|
---|
215 | * you wish to wait for ever for it to return.
|
---|
216 | *
|
---|
217 | * @returns VBox status code of VMR3ReqCallVU.
|
---|
218 | *
|
---|
219 | * @param pUVM Pointer to the VM.
|
---|
220 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
221 | * one of the following special values:
|
---|
222 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
223 | * @param pfnFunction Pointer to the function to call.
|
---|
224 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
225 | * @param ... Function arguments.
|
---|
226 | *
|
---|
227 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
228 | */
|
---|
229 | VMMR3DECL(int) VMR3ReqCallVoidWaitU(PUVM pUVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
230 | {
|
---|
231 | PVMREQ pReq;
|
---|
232 | va_list va;
|
---|
233 | va_start(va, cArgs);
|
---|
234 | int rc = VMR3ReqCallVU(pUVM, idDstCpu, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VOID,
|
---|
235 | pfnFunction, cArgs, va);
|
---|
236 | va_end(va);
|
---|
237 | VMR3ReqFree(pReq);
|
---|
238 | return rc;
|
---|
239 | }
|
---|
240 |
|
---|
241 |
|
---|
242 | /**
|
---|
243 | * Convenience wrapper for VMR3ReqCallU.
|
---|
244 | *
|
---|
245 | * This assumes (1) you're calling a function that returns void, and (2) that
|
---|
246 | * you do not wish to wait for it to complete.
|
---|
247 | *
|
---|
248 | * @returns VBox status code of VMR3ReqCallVU.
|
---|
249 | *
|
---|
250 | * @param pVM The cross context VM structure.
|
---|
251 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
252 | * one of the following special values:
|
---|
253 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
254 | * @param pfnFunction Pointer to the function to call.
|
---|
255 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
256 | * @param ... Function arguments.
|
---|
257 | *
|
---|
258 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
259 | * @internal
|
---|
260 | */
|
---|
261 | VMMR3DECL(int) VMR3ReqCallVoidNoWait(PVM pVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
262 | {
|
---|
263 | PVMREQ pReq;
|
---|
264 | va_list va;
|
---|
265 | va_start(va, cArgs);
|
---|
266 | int rc = VMR3ReqCallVU(pVM->pUVM, idDstCpu, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VOID | VMREQFLAGS_NO_WAIT,
|
---|
267 | pfnFunction, cArgs, va);
|
---|
268 | va_end(va);
|
---|
269 | VMR3ReqFree(pReq);
|
---|
270 | return rc;
|
---|
271 | }
|
---|
272 |
|
---|
273 |
|
---|
274 | /**
|
---|
275 | * Convenience wrapper for VMR3ReqCallU.
|
---|
276 | *
|
---|
277 | * This assumes (1) you're calling a function that returns an VBox status code,
|
---|
278 | * (2) that you want it's return code on success, (3) that you wish to wait for
|
---|
279 | * ever for it to return, and (4) that it's priority request that can be safely
|
---|
280 | * be handled during async suspend and power off.
|
---|
281 | *
|
---|
282 | * @returns VBox status code. In the unlikely event that VMR3ReqCallVU fails,
|
---|
283 | * its status code is return. Otherwise, the status of pfnFunction is
|
---|
284 | * returned.
|
---|
285 | *
|
---|
286 | * @param pVM The cross context VM structure.
|
---|
287 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
288 | * one of the following special values:
|
---|
289 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
290 | * @param pfnFunction Pointer to the function to call.
|
---|
291 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
292 | * @param ... Function arguments.
|
---|
293 | *
|
---|
294 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
295 | * @internal
|
---|
296 | */
|
---|
297 | VMMR3DECL(int) VMR3ReqPriorityCallWait(PVM pVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
298 | {
|
---|
299 | PVMREQ pReq;
|
---|
300 | va_list va;
|
---|
301 | va_start(va, cArgs);
|
---|
302 | int rc = VMR3ReqCallVU(pVM->pUVM, idDstCpu, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VBOX_STATUS | VMREQFLAGS_PRIORITY,
|
---|
303 | pfnFunction, cArgs, va);
|
---|
304 | va_end(va);
|
---|
305 | if (RT_SUCCESS(rc))
|
---|
306 | rc = pReq->iStatus;
|
---|
307 | VMR3ReqFree(pReq);
|
---|
308 | return rc;
|
---|
309 | }
|
---|
310 |
|
---|
311 |
|
---|
312 | /**
|
---|
313 | * Convenience wrapper for VMR3ReqCallU.
|
---|
314 | *
|
---|
315 | * This assumes (1) you're calling a function that returns an VBox status code,
|
---|
316 | * (2) that you want it's return code on success, (3) that you wish to wait for
|
---|
317 | * ever for it to return, and (4) that it's priority request that can be safely
|
---|
318 | * be handled during async suspend and power off.
|
---|
319 | *
|
---|
320 | * @returns VBox status code. In the unlikely event that VMR3ReqCallVU fails,
|
---|
321 | * its status code is return. Otherwise, the status of pfnFunction is
|
---|
322 | * returned.
|
---|
323 | *
|
---|
324 | * @param pUVM The user mode VM handle.
|
---|
325 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
326 | * one of the following special values:
|
---|
327 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
328 | * @param pfnFunction Pointer to the function to call.
|
---|
329 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
330 | * @param ... Function arguments.
|
---|
331 | *
|
---|
332 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
333 | */
|
---|
334 | VMMR3DECL(int) VMR3ReqPriorityCallWaitU(PUVM pUVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
335 | {
|
---|
336 | PVMREQ pReq;
|
---|
337 | va_list va;
|
---|
338 | va_start(va, cArgs);
|
---|
339 | int rc = VMR3ReqCallVU(pUVM, idDstCpu, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VBOX_STATUS | VMREQFLAGS_PRIORITY,
|
---|
340 | pfnFunction, cArgs, va);
|
---|
341 | va_end(va);
|
---|
342 | if (RT_SUCCESS(rc))
|
---|
343 | rc = pReq->iStatus;
|
---|
344 | VMR3ReqFree(pReq);
|
---|
345 | return rc;
|
---|
346 | }
|
---|
347 |
|
---|
348 |
|
---|
349 | /**
|
---|
350 | * Convenience wrapper for VMR3ReqCallU.
|
---|
351 | *
|
---|
352 | * This assumes (1) you're calling a function that returns void, (2) that you
|
---|
353 | * wish to wait for ever for it to return, and (3) that it's priority request
|
---|
354 | * that can be safely be handled during async suspend and power off.
|
---|
355 | *
|
---|
356 | * @returns VBox status code of VMR3ReqCallVU.
|
---|
357 | *
|
---|
358 | * @param pUVM The user mode VM handle.
|
---|
359 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
360 | * one of the following special values:
|
---|
361 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
362 | * @param pfnFunction Pointer to the function to call.
|
---|
363 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
364 | * @param ... Function arguments.
|
---|
365 | *
|
---|
366 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
367 | */
|
---|
368 | VMMR3DECL(int) VMR3ReqPriorityCallVoidWaitU(PUVM pUVM, VMCPUID idDstCpu, PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
369 | {
|
---|
370 | PVMREQ pReq;
|
---|
371 | va_list va;
|
---|
372 | va_start(va, cArgs);
|
---|
373 | int rc = VMR3ReqCallVU(pUVM, idDstCpu, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VOID | VMREQFLAGS_PRIORITY,
|
---|
374 | pfnFunction, cArgs, va);
|
---|
375 | va_end(va);
|
---|
376 | VMR3ReqFree(pReq);
|
---|
377 | return rc;
|
---|
378 | }
|
---|
379 |
|
---|
380 |
|
---|
381 | /**
|
---|
382 | * Allocate and queue a call request to a void function.
|
---|
383 | *
|
---|
384 | * If it's desired to poll on the completion of the request set cMillies
|
---|
385 | * to 0 and use VMR3ReqWait() to check for completion. In the other case
|
---|
386 | * use RT_INDEFINITE_WAIT.
|
---|
387 | * The returned request packet must be freed using VMR3ReqFree().
|
---|
388 | *
|
---|
389 | * @returns VBox status code.
|
---|
390 | * Will not return VERR_INTERRUPTED.
|
---|
391 | * @returns VERR_TIMEOUT if cMillies was reached without the packet being completed.
|
---|
392 | *
|
---|
393 | * @param pUVM Pointer to the user mode VM structure.
|
---|
394 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
395 | * one of the following special values:
|
---|
396 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
397 | * @param ppReq Where to store the pointer to the request.
|
---|
398 | * This will be NULL or a valid request pointer not matter what happens, unless fFlags
|
---|
399 | * contains VMREQFLAGS_NO_WAIT when it will be optional and always NULL.
|
---|
400 | * @param cMillies Number of milliseconds to wait for the request to
|
---|
401 | * be completed. Use RT_INDEFINITE_WAIT to only
|
---|
402 | * wait till it's completed.
|
---|
403 | * @param fFlags A combination of the VMREQFLAGS values.
|
---|
404 | * @param pfnFunction Pointer to the function to call.
|
---|
405 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
406 | * @param ... Function arguments.
|
---|
407 | *
|
---|
408 | * @remarks See remarks on VMR3ReqCallVU.
|
---|
409 | */
|
---|
410 | VMMR3DECL(int) VMR3ReqCallU(PUVM pUVM, VMCPUID idDstCpu, PVMREQ *ppReq, RTMSINTERVAL cMillies, uint32_t fFlags,
|
---|
411 | PFNRT pfnFunction, unsigned cArgs, ...)
|
---|
412 | {
|
---|
413 | va_list va;
|
---|
414 | va_start(va, cArgs);
|
---|
415 | int rc = VMR3ReqCallVU(pUVM, idDstCpu, ppReq, cMillies, fFlags, pfnFunction, cArgs, va);
|
---|
416 | va_end(va);
|
---|
417 | return rc;
|
---|
418 | }
|
---|
419 |
|
---|
420 |
|
---|
421 | /**
|
---|
422 | * Allocate and queue a call request.
|
---|
423 | *
|
---|
424 | * If it's desired to poll on the completion of the request set cMillies
|
---|
425 | * to 0 and use VMR3ReqWait() to check for completion. In the other case
|
---|
426 | * use RT_INDEFINITE_WAIT.
|
---|
427 | * The returned request packet must be freed using VMR3ReqFree().
|
---|
428 | *
|
---|
429 | * @returns VBox status code.
|
---|
430 | * Will not return VERR_INTERRUPTED.
|
---|
431 | * @returns VERR_TIMEOUT if cMillies was reached without the packet being completed.
|
---|
432 | *
|
---|
433 | * @param pUVM Pointer to the user mode VM structure.
|
---|
434 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
435 | * one of the following special values:
|
---|
436 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
437 | * @param ppReq Where to store the pointer to the request.
|
---|
438 | * This will be NULL or a valid request pointer not matter what happens, unless fFlags
|
---|
439 | * contains VMREQFLAGS_NO_WAIT when it will be optional and always NULL.
|
---|
440 | * @param cMillies Number of milliseconds to wait for the request to
|
---|
441 | * be completed. Use RT_INDEFINITE_WAIT to only
|
---|
442 | * wait till it's completed.
|
---|
443 | * @param pfnFunction Pointer to the function to call.
|
---|
444 | * @param fFlags A combination of the VMREQFLAGS values.
|
---|
445 | * @param cArgs Number of arguments following in the ellipsis.
|
---|
446 | * Stuff which differs in size from uintptr_t is gonna make trouble, so don't try!
|
---|
447 | * @param Args Argument vector.
|
---|
448 | *
|
---|
449 | * @remarks Caveats:
|
---|
450 | * - Do not pass anything which is larger than an uintptr_t.
|
---|
451 | * - 64-bit integers are larger than uintptr_t on 32-bit hosts.
|
---|
452 | * Pass integers > 32-bit by reference (pointers).
|
---|
453 | * - Don't use NULL since it should be the integer 0 in C++ and may
|
---|
454 | * therefore end up with garbage in the bits 63:32 on 64-bit
|
---|
455 | * hosts because 'int' is 32-bit.
|
---|
456 | * Use (void *)NULL or (uintptr_t)0 instead of NULL.
|
---|
457 | */
|
---|
458 | VMMR3DECL(int) VMR3ReqCallVU(PUVM pUVM, VMCPUID idDstCpu, PVMREQ *ppReq, RTMSINTERVAL cMillies, uint32_t fFlags,
|
---|
459 | PFNRT pfnFunction, unsigned cArgs, va_list Args)
|
---|
460 | {
|
---|
461 | LogFlow(("VMR3ReqCallV: idDstCpu=%u cMillies=%d fFlags=%#x pfnFunction=%p cArgs=%d\n", idDstCpu, cMillies, fFlags, pfnFunction, cArgs));
|
---|
462 |
|
---|
463 | /*
|
---|
464 | * Validate input.
|
---|
465 | */
|
---|
466 | AssertPtrReturn(pfnFunction, VERR_INVALID_POINTER);
|
---|
467 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
468 | AssertReturn(!(fFlags & ~(VMREQFLAGS_RETURN_MASK | VMREQFLAGS_NO_WAIT | VMREQFLAGS_POKE | VMREQFLAGS_PRIORITY)), VERR_INVALID_PARAMETER);
|
---|
469 | if (!(fFlags & VMREQFLAGS_NO_WAIT) || ppReq)
|
---|
470 | {
|
---|
471 | AssertPtrReturn(ppReq, VERR_INVALID_POINTER);
|
---|
472 | *ppReq = NULL;
|
---|
473 | }
|
---|
474 | PVMREQ pReq = NULL;
|
---|
475 | AssertMsgReturn(cArgs * sizeof(uintptr_t) <= sizeof(pReq->u.Internal.aArgs),
|
---|
476 | ("cArg=%d\n", cArgs),
|
---|
477 | VERR_TOO_MUCH_DATA);
|
---|
478 |
|
---|
479 | /*
|
---|
480 | * Allocate request
|
---|
481 | */
|
---|
482 | int rc = VMR3ReqAlloc(pUVM, &pReq, VMREQTYPE_INTERNAL, idDstCpu);
|
---|
483 | if (RT_FAILURE(rc))
|
---|
484 | return rc;
|
---|
485 |
|
---|
486 | /*
|
---|
487 | * Initialize the request data.
|
---|
488 | */
|
---|
489 | pReq->fFlags = fFlags;
|
---|
490 | pReq->u.Internal.pfn = pfnFunction;
|
---|
491 | pReq->u.Internal.cArgs = cArgs;
|
---|
492 | for (unsigned iArg = 0; iArg < cArgs; iArg++)
|
---|
493 | pReq->u.Internal.aArgs[iArg] = va_arg(Args, uintptr_t);
|
---|
494 |
|
---|
495 | /*
|
---|
496 | * Queue the request and return.
|
---|
497 | */
|
---|
498 | rc = VMR3ReqQueue(pReq, cMillies);
|
---|
499 | if ( RT_FAILURE(rc)
|
---|
500 | && rc != VERR_TIMEOUT)
|
---|
501 | {
|
---|
502 | VMR3ReqFree(pReq);
|
---|
503 | pReq = NULL;
|
---|
504 | }
|
---|
505 | if (!(fFlags & VMREQFLAGS_NO_WAIT))
|
---|
506 | {
|
---|
507 | *ppReq = pReq;
|
---|
508 | LogFlow(("VMR3ReqCallV: returns %Rrc *ppReq=%p\n", rc, pReq));
|
---|
509 | }
|
---|
510 | else
|
---|
511 | LogFlow(("VMR3ReqCallV: returns %Rrc\n", rc));
|
---|
512 | Assert(rc != VERR_INTERRUPTED);
|
---|
513 | return rc;
|
---|
514 | }
|
---|
515 |
|
---|
516 |
|
---|
517 | /**
|
---|
518 | * Joins the list pList with whatever is linked up at *pHead.
|
---|
519 | */
|
---|
520 | static void vmr3ReqJoinFreeSub(volatile PVMREQ *ppHead, PVMREQ pList)
|
---|
521 | {
|
---|
522 | for (unsigned cIterations = 0;; cIterations++)
|
---|
523 | {
|
---|
524 | PVMREQ pHead = ASMAtomicXchgPtrT(ppHead, pList, PVMREQ);
|
---|
525 | if (!pHead)
|
---|
526 | return;
|
---|
527 | PVMREQ pTail = pHead;
|
---|
528 | while (pTail->pNext)
|
---|
529 | pTail = pTail->pNext;
|
---|
530 | ASMAtomicWritePtr(&pTail->pNext, pList);
|
---|
531 | ASMCompilerBarrier();
|
---|
532 | if (ASMAtomicCmpXchgPtr(ppHead, pHead, pList))
|
---|
533 | return;
|
---|
534 | ASMAtomicWriteNullPtr(&pTail->pNext);
|
---|
535 | ASMCompilerBarrier();
|
---|
536 | if (ASMAtomicCmpXchgPtr(ppHead, pHead, NULL))
|
---|
537 | return;
|
---|
538 | pList = pHead;
|
---|
539 | Assert(cIterations != 32);
|
---|
540 | Assert(cIterations != 64);
|
---|
541 | }
|
---|
542 | }
|
---|
543 |
|
---|
544 |
|
---|
545 | /**
|
---|
546 | * Joins the list pList with whatever is linked up at *pHead.
|
---|
547 | */
|
---|
548 | static void vmr3ReqJoinFree(PVMINTUSERPERVM pVMInt, PVMREQ pList)
|
---|
549 | {
|
---|
550 | /*
|
---|
551 | * Split the list if it's too long.
|
---|
552 | */
|
---|
553 | unsigned cReqs = 1;
|
---|
554 | PVMREQ pTail = pList;
|
---|
555 | while (pTail->pNext)
|
---|
556 | {
|
---|
557 | if (cReqs++ > 25)
|
---|
558 | {
|
---|
559 | const uint32_t i = pVMInt->iReqFree;
|
---|
560 | vmr3ReqJoinFreeSub(&pVMInt->apReqFree[(i + 2) % RT_ELEMENTS(pVMInt->apReqFree)], pTail->pNext);
|
---|
561 |
|
---|
562 | pTail->pNext = NULL;
|
---|
563 | vmr3ReqJoinFreeSub(&pVMInt->apReqFree[(i + 2 + (i == pVMInt->iReqFree)) % RT_ELEMENTS(pVMInt->apReqFree)], pTail->pNext);
|
---|
564 | return;
|
---|
565 | }
|
---|
566 | pTail = pTail->pNext;
|
---|
567 | }
|
---|
568 | vmr3ReqJoinFreeSub(&pVMInt->apReqFree[(pVMInt->iReqFree + 2) % RT_ELEMENTS(pVMInt->apReqFree)], pList);
|
---|
569 | }
|
---|
570 |
|
---|
571 |
|
---|
572 | /**
|
---|
573 | * Allocates a request packet.
|
---|
574 | *
|
---|
575 | * The caller allocates a request packet, fills in the request data
|
---|
576 | * union and queues the request.
|
---|
577 | *
|
---|
578 | * @returns VBox status code.
|
---|
579 | *
|
---|
580 | * @param pUVM Pointer to the user mode VM structure.
|
---|
581 | * @param ppReq Where to store the pointer to the allocated packet.
|
---|
582 | * @param enmType Package type.
|
---|
583 | * @param idDstCpu The destination CPU(s). Either a specific CPU ID or
|
---|
584 | * one of the following special values:
|
---|
585 | * VMCPUID_ANY, VMCPUID_ANY_QUEUE, VMCPUID_ALL or VMCPUID_ALL_REVERSE.
|
---|
586 | */
|
---|
587 | VMMR3DECL(int) VMR3ReqAlloc(PUVM pUVM, PVMREQ *ppReq, VMREQTYPE enmType, VMCPUID idDstCpu)
|
---|
588 | {
|
---|
589 | /*
|
---|
590 | * Validate input.
|
---|
591 | */
|
---|
592 | AssertMsgReturn(enmType > VMREQTYPE_INVALID && enmType < VMREQTYPE_MAX,
|
---|
593 | ("Invalid package type %d valid range %d-%d inclusively.\n",
|
---|
594 | enmType, VMREQTYPE_INVALID + 1, VMREQTYPE_MAX - 1),
|
---|
595 | VERR_VM_REQUEST_INVALID_TYPE);
|
---|
596 | AssertPtrReturn(ppReq, VERR_INVALID_POINTER);
|
---|
597 | AssertMsgReturn( idDstCpu == VMCPUID_ANY
|
---|
598 | || idDstCpu == VMCPUID_ANY_QUEUE
|
---|
599 | || idDstCpu < pUVM->cCpus
|
---|
600 | || idDstCpu == VMCPUID_ALL
|
---|
601 | || idDstCpu == VMCPUID_ALL_REVERSE,
|
---|
602 | ("Invalid destination %u (max=%u)\n", idDstCpu, pUVM->cCpus), VERR_INVALID_PARAMETER);
|
---|
603 |
|
---|
604 | /*
|
---|
605 | * Try get a recycled packet.
|
---|
606 | * While this could all be solved with a single list with a lock, it's a sport
|
---|
607 | * of mine to avoid locks.
|
---|
608 | */
|
---|
609 | int cTries = RT_ELEMENTS(pUVM->vm.s.apReqFree) * 2;
|
---|
610 | while (--cTries >= 0)
|
---|
611 | {
|
---|
612 | PVMREQ volatile *ppHead = &pUVM->vm.s.apReqFree[ASMAtomicIncU32(&pUVM->vm.s.iReqFree) % RT_ELEMENTS(pUVM->vm.s.apReqFree)];
|
---|
613 | #if 0 /* sad, but this won't work safely because the reading of pReq->pNext. */
|
---|
614 | PVMREQ pNext = NULL;
|
---|
615 | PVMREQ pReq = *ppHead;
|
---|
616 | if ( pReq
|
---|
617 | && !ASMAtomicCmpXchgPtr(ppHead, (pNext = pReq->pNext), pReq)
|
---|
618 | && (pReq = *ppHead)
|
---|
619 | && !ASMAtomicCmpXchgPtr(ppHead, (pNext = pReq->pNext), pReq))
|
---|
620 | pReq = NULL;
|
---|
621 | if (pReq)
|
---|
622 | {
|
---|
623 | Assert(pReq->pNext == pNext); NOREF(pReq);
|
---|
624 | #else
|
---|
625 | PVMREQ pReq = ASMAtomicXchgPtrT(ppHead, NULL, PVMREQ);
|
---|
626 | if (pReq)
|
---|
627 | {
|
---|
628 | PVMREQ pNext = pReq->pNext;
|
---|
629 | if ( pNext
|
---|
630 | && !ASMAtomicCmpXchgPtr(ppHead, pNext, NULL))
|
---|
631 | {
|
---|
632 | STAM_COUNTER_INC(&pUVM->vm.s.StatReqAllocRaces);
|
---|
633 | vmr3ReqJoinFree(&pUVM->vm.s, pReq->pNext);
|
---|
634 | }
|
---|
635 | #endif
|
---|
636 | ASMAtomicDecU32(&pUVM->vm.s.cReqFree);
|
---|
637 |
|
---|
638 | /*
|
---|
639 | * Make sure the event sem is not signaled.
|
---|
640 | */
|
---|
641 | if (!pReq->fEventSemClear)
|
---|
642 | {
|
---|
643 | int rc = RTSemEventWait(pReq->EventSem, 0);
|
---|
644 | if (rc != VINF_SUCCESS && rc != VERR_TIMEOUT)
|
---|
645 | {
|
---|
646 | /*
|
---|
647 | * This shall not happen, but if it does we'll just destroy
|
---|
648 | * the semaphore and create a new one.
|
---|
649 | */
|
---|
650 | AssertMsgFailed(("rc=%Rrc from RTSemEventWait(%#x).\n", rc, pReq->EventSem));
|
---|
651 | RTSemEventDestroy(pReq->EventSem);
|
---|
652 | rc = RTSemEventCreate(&pReq->EventSem);
|
---|
653 | AssertRC(rc);
|
---|
654 | if (RT_FAILURE(rc))
|
---|
655 | return rc;
|
---|
656 | #if 0 /// @todo @bugref{4725} - def RT_LOCK_STRICT
|
---|
657 | for (VMCPUID idCpu = 0; idCpu < pUVM->cCpus; idCpu++)
|
---|
658 | RTSemEventAddSignaller(pReq->EventSem, pUVM->aCpus[idCpu].vm.s.ThreadEMT);
|
---|
659 | #endif
|
---|
660 | }
|
---|
661 | pReq->fEventSemClear = true;
|
---|
662 | }
|
---|
663 | else
|
---|
664 | Assert(RTSemEventWait(pReq->EventSem, 0) == VERR_TIMEOUT);
|
---|
665 |
|
---|
666 | /*
|
---|
667 | * Initialize the packet and return it.
|
---|
668 | */
|
---|
669 | Assert(pReq->enmType == VMREQTYPE_INVALID);
|
---|
670 | Assert(pReq->enmState == VMREQSTATE_FREE);
|
---|
671 | Assert(pReq->pUVM == pUVM);
|
---|
672 | ASMAtomicWriteNullPtr(&pReq->pNext);
|
---|
673 | pReq->enmState = VMREQSTATE_ALLOCATED;
|
---|
674 | pReq->iStatus = VERR_VM_REQUEST_STATUS_STILL_PENDING;
|
---|
675 | pReq->fFlags = VMREQFLAGS_VBOX_STATUS;
|
---|
676 | pReq->enmType = enmType;
|
---|
677 | pReq->idDstCpu = idDstCpu;
|
---|
678 |
|
---|
679 | *ppReq = pReq;
|
---|
680 | STAM_COUNTER_INC(&pUVM->vm.s.StatReqAllocRecycled);
|
---|
681 | LogFlow(("VMR3ReqAlloc: returns VINF_SUCCESS *ppReq=%p recycled\n", pReq));
|
---|
682 | return VINF_SUCCESS;
|
---|
683 | }
|
---|
684 | }
|
---|
685 |
|
---|
686 | /*
|
---|
687 | * Ok allocate one.
|
---|
688 | */
|
---|
689 | PVMREQ pReq = (PVMREQ)MMR3HeapAllocU(pUVM, MM_TAG_VM_REQ, sizeof(*pReq));
|
---|
690 | if (!pReq)
|
---|
691 | return VERR_NO_MEMORY;
|
---|
692 |
|
---|
693 | /*
|
---|
694 | * Create the semaphore.
|
---|
695 | */
|
---|
696 | int rc = RTSemEventCreate(&pReq->EventSem);
|
---|
697 | AssertRC(rc);
|
---|
698 | if (RT_FAILURE(rc))
|
---|
699 | {
|
---|
700 | MMR3HeapFree(pReq);
|
---|
701 | return rc;
|
---|
702 | }
|
---|
703 | #if 0 /// @todo @bugref{4725} - def RT_LOCK_STRICT
|
---|
704 | for (VMCPUID idCpu = 0; idCpu < pUVM->cCpus; idCpu++)
|
---|
705 | RTSemEventAddSignaller(pReq->EventSem, pUVM->aCpus[idCpu].vm.s.ThreadEMT);
|
---|
706 | #endif
|
---|
707 |
|
---|
708 | /*
|
---|
709 | * Initialize the packet and return it.
|
---|
710 | */
|
---|
711 | pReq->pNext = NULL;
|
---|
712 | pReq->pUVM = pUVM;
|
---|
713 | pReq->enmState = VMREQSTATE_ALLOCATED;
|
---|
714 | pReq->iStatus = VERR_VM_REQUEST_STATUS_STILL_PENDING;
|
---|
715 | pReq->fEventSemClear = true;
|
---|
716 | pReq->fFlags = VMREQFLAGS_VBOX_STATUS;
|
---|
717 | pReq->enmType = enmType;
|
---|
718 | pReq->idDstCpu = idDstCpu;
|
---|
719 |
|
---|
720 | *ppReq = pReq;
|
---|
721 | STAM_COUNTER_INC(&pUVM->vm.s.StatReqAllocNew);
|
---|
722 | LogFlow(("VMR3ReqAlloc: returns VINF_SUCCESS *ppReq=%p new\n", pReq));
|
---|
723 | return VINF_SUCCESS;
|
---|
724 | }
|
---|
725 |
|
---|
726 |
|
---|
727 | /**
|
---|
728 | * Free a request packet.
|
---|
729 | *
|
---|
730 | * @returns VBox status code.
|
---|
731 | *
|
---|
732 | * @param pReq Package to free.
|
---|
733 | * @remark The request packet must be in allocated or completed state!
|
---|
734 | */
|
---|
735 | VMMR3DECL(int) VMR3ReqFree(PVMREQ pReq)
|
---|
736 | {
|
---|
737 | /*
|
---|
738 | * Ignore NULL (all free functions should do this imho).
|
---|
739 | */
|
---|
740 | if (!pReq)
|
---|
741 | return VINF_SUCCESS;
|
---|
742 |
|
---|
743 | /*
|
---|
744 | * Check packet state.
|
---|
745 | */
|
---|
746 | switch (pReq->enmState)
|
---|
747 | {
|
---|
748 | case VMREQSTATE_ALLOCATED:
|
---|
749 | case VMREQSTATE_COMPLETED:
|
---|
750 | break;
|
---|
751 | default:
|
---|
752 | AssertMsgFailed(("Invalid state %d!\n", pReq->enmState));
|
---|
753 | return VERR_VM_REQUEST_STATE;
|
---|
754 | }
|
---|
755 |
|
---|
756 | /*
|
---|
757 | * Make it a free packet and put it into one of the free packet lists.
|
---|
758 | */
|
---|
759 | pReq->enmState = VMREQSTATE_FREE;
|
---|
760 | pReq->iStatus = VERR_VM_REQUEST_STATUS_FREED;
|
---|
761 | pReq->enmType = VMREQTYPE_INVALID;
|
---|
762 |
|
---|
763 | PUVM pUVM = pReq->pUVM;
|
---|
764 | STAM_COUNTER_INC(&pUVM->vm.s.StatReqFree);
|
---|
765 |
|
---|
766 | if (pUVM->vm.s.cReqFree < 128)
|
---|
767 | {
|
---|
768 | ASMAtomicIncU32(&pUVM->vm.s.cReqFree);
|
---|
769 | PVMREQ volatile *ppHead = &pUVM->vm.s.apReqFree[ASMAtomicIncU32(&pUVM->vm.s.iReqFree) % RT_ELEMENTS(pUVM->vm.s.apReqFree)];
|
---|
770 | PVMREQ pNext;
|
---|
771 | do
|
---|
772 | {
|
---|
773 | pNext = ASMAtomicUoReadPtrT(ppHead, PVMREQ);
|
---|
774 | ASMAtomicWritePtr(&pReq->pNext, pNext);
|
---|
775 | ASMCompilerBarrier();
|
---|
776 | } while (!ASMAtomicCmpXchgPtr(ppHead, pReq, pNext));
|
---|
777 | }
|
---|
778 | else
|
---|
779 | {
|
---|
780 | STAM_COUNTER_INC(&pReq->pUVM->vm.s.StatReqFreeOverflow);
|
---|
781 | RTSemEventDestroy(pReq->EventSem);
|
---|
782 | MMR3HeapFree(pReq);
|
---|
783 | }
|
---|
784 | return VINF_SUCCESS;
|
---|
785 | }
|
---|
786 |
|
---|
787 |
|
---|
788 | /**
|
---|
789 | * Queue a request.
|
---|
790 | *
|
---|
791 | * The quest must be allocated using VMR3ReqAlloc() and contain
|
---|
792 | * all the required data.
|
---|
793 | * If it's desired to poll on the completion of the request set cMillies
|
---|
794 | * to 0 and use VMR3ReqWait() to check for completion. In the other case
|
---|
795 | * use RT_INDEFINITE_WAIT.
|
---|
796 | *
|
---|
797 | * @returns VBox status code.
|
---|
798 | * Will not return VERR_INTERRUPTED.
|
---|
799 | * @returns VERR_TIMEOUT if cMillies was reached without the packet being completed.
|
---|
800 | *
|
---|
801 | * @param pReq The request to queue.
|
---|
802 | * @param cMillies Number of milliseconds to wait for the request to
|
---|
803 | * be completed. Use RT_INDEFINITE_WAIT to only
|
---|
804 | * wait till it's completed.
|
---|
805 | */
|
---|
806 | VMMR3DECL(int) VMR3ReqQueue(PVMREQ pReq, RTMSINTERVAL cMillies)
|
---|
807 | {
|
---|
808 | LogFlow(("VMR3ReqQueue: pReq=%p cMillies=%d\n", pReq, cMillies));
|
---|
809 | /*
|
---|
810 | * Verify the supplied package.
|
---|
811 | */
|
---|
812 | AssertMsgReturn(pReq->enmState == VMREQSTATE_ALLOCATED, ("%d\n", pReq->enmState), VERR_VM_REQUEST_STATE);
|
---|
813 | AssertMsgReturn( VALID_PTR(pReq->pUVM)
|
---|
814 | && !pReq->pNext
|
---|
815 | && pReq->EventSem != NIL_RTSEMEVENT,
|
---|
816 | ("Invalid request package! Anyone cooking their own packages???\n"),
|
---|
817 | VERR_VM_REQUEST_INVALID_PACKAGE);
|
---|
818 | AssertMsgReturn( pReq->enmType > VMREQTYPE_INVALID
|
---|
819 | && pReq->enmType < VMREQTYPE_MAX,
|
---|
820 | ("Invalid package type %d valid range %d-%d inclusively. This was verified on alloc too...\n",
|
---|
821 | pReq->enmType, VMREQTYPE_INVALID + 1, VMREQTYPE_MAX - 1),
|
---|
822 | VERR_VM_REQUEST_INVALID_TYPE);
|
---|
823 | Assert(!(pReq->fFlags & ~(VMREQFLAGS_RETURN_MASK | VMREQFLAGS_NO_WAIT | VMREQFLAGS_POKE | VMREQFLAGS_PRIORITY)));
|
---|
824 |
|
---|
825 | /*
|
---|
826 | * Are we the EMT or not?
|
---|
827 | * Also, store pVM (and fFlags) locally since pReq may be invalid after queuing it.
|
---|
828 | */
|
---|
829 | int rc = VINF_SUCCESS;
|
---|
830 | PUVM pUVM = ((VMREQ volatile *)pReq)->pUVM; /* volatile paranoia */
|
---|
831 | PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
|
---|
832 |
|
---|
833 | if (pReq->idDstCpu == VMCPUID_ALL)
|
---|
834 | {
|
---|
835 | /* One-by-one. */
|
---|
836 | Assert(!(pReq->fFlags & VMREQFLAGS_NO_WAIT));
|
---|
837 | for (unsigned i = 0; i < pUVM->cCpus; i++)
|
---|
838 | {
|
---|
839 | /* Reinit some members. */
|
---|
840 | pReq->enmState = VMREQSTATE_ALLOCATED;
|
---|
841 | pReq->idDstCpu = i;
|
---|
842 | rc = VMR3ReqQueue(pReq, cMillies);
|
---|
843 | if (RT_FAILURE(rc))
|
---|
844 | break;
|
---|
845 | }
|
---|
846 | }
|
---|
847 | else if (pReq->idDstCpu == VMCPUID_ALL_REVERSE)
|
---|
848 | {
|
---|
849 | /* One-by-one. */
|
---|
850 | Assert(!(pReq->fFlags & VMREQFLAGS_NO_WAIT));
|
---|
851 | for (int i = pUVM->cCpus-1; i >= 0; i--)
|
---|
852 | {
|
---|
853 | /* Reinit some members. */
|
---|
854 | pReq->enmState = VMREQSTATE_ALLOCATED;
|
---|
855 | pReq->idDstCpu = i;
|
---|
856 | rc = VMR3ReqQueue(pReq, cMillies);
|
---|
857 | if (RT_FAILURE(rc))
|
---|
858 | break;
|
---|
859 | }
|
---|
860 | }
|
---|
861 | else if ( pReq->idDstCpu != VMCPUID_ANY /* for a specific VMCPU? */
|
---|
862 | && pReq->idDstCpu != VMCPUID_ANY_QUEUE
|
---|
863 | && ( !pUVCpu /* and it's not the current thread. */
|
---|
864 | || pUVCpu->idCpu != pReq->idDstCpu))
|
---|
865 | {
|
---|
866 | VMCPUID idTarget = pReq->idDstCpu; Assert(idTarget < pUVM->cCpus);
|
---|
867 | PVMCPU pVCpu = pUVM->pVM->apCpusR3[idTarget];
|
---|
868 | unsigned fFlags = ((VMREQ volatile *)pReq)->fFlags; /* volatile paranoia */
|
---|
869 |
|
---|
870 | /* Fetch the right UVMCPU */
|
---|
871 | pUVCpu = &pUVM->aCpus[idTarget];
|
---|
872 |
|
---|
873 | /*
|
---|
874 | * Insert it.
|
---|
875 | */
|
---|
876 | volatile PVMREQ *ppQueueHead = pReq->fFlags & VMREQFLAGS_PRIORITY ? &pUVCpu->vm.s.pPriorityReqs : &pUVCpu->vm.s.pNormalReqs;
|
---|
877 | pReq->enmState = VMREQSTATE_QUEUED;
|
---|
878 | PVMREQ pNext;
|
---|
879 | do
|
---|
880 | {
|
---|
881 | pNext = ASMAtomicUoReadPtrT(ppQueueHead, PVMREQ);
|
---|
882 | ASMAtomicWritePtr(&pReq->pNext, pNext);
|
---|
883 | ASMCompilerBarrier();
|
---|
884 | } while (!ASMAtomicCmpXchgPtr(ppQueueHead, pReq, pNext));
|
---|
885 |
|
---|
886 | /*
|
---|
887 | * Notify EMT.
|
---|
888 | */
|
---|
889 | if (pUVM->pVM)
|
---|
890 | VMCPU_FF_SET(pVCpu, VMCPU_FF_REQUEST);
|
---|
891 | VMR3NotifyCpuFFU(pUVCpu, fFlags & VMREQFLAGS_POKE ? VMNOTIFYFF_FLAGS_POKE : 0);
|
---|
892 |
|
---|
893 | /*
|
---|
894 | * Wait and return.
|
---|
895 | */
|
---|
896 | if (!(fFlags & VMREQFLAGS_NO_WAIT))
|
---|
897 | rc = VMR3ReqWait(pReq, cMillies);
|
---|
898 | LogFlow(("VMR3ReqQueue: returns %Rrc\n", rc));
|
---|
899 | }
|
---|
900 | else if ( ( pReq->idDstCpu == VMCPUID_ANY
|
---|
901 | && !pUVCpu /* only EMT threads have a valid pointer stored in the TLS slot. */)
|
---|
902 | || pReq->idDstCpu == VMCPUID_ANY_QUEUE)
|
---|
903 | {
|
---|
904 | unsigned fFlags = ((VMREQ volatile *)pReq)->fFlags; /* volatile paranoia */
|
---|
905 |
|
---|
906 | /* Note: pUVCpu may or may not be NULL in the VMCPUID_ANY_QUEUE case; we don't care. */
|
---|
907 |
|
---|
908 | /*
|
---|
909 | * Insert it.
|
---|
910 | */
|
---|
911 | volatile PVMREQ *ppQueueHead = pReq->fFlags & VMREQFLAGS_PRIORITY ? &pUVM->vm.s.pPriorityReqs : &pUVM->vm.s.pNormalReqs;
|
---|
912 | pReq->enmState = VMREQSTATE_QUEUED;
|
---|
913 | PVMREQ pNext;
|
---|
914 | do
|
---|
915 | {
|
---|
916 | pNext = ASMAtomicUoReadPtrT(ppQueueHead, PVMREQ);
|
---|
917 | ASMAtomicWritePtr(&pReq->pNext, pNext);
|
---|
918 | ASMCompilerBarrier();
|
---|
919 | } while (!ASMAtomicCmpXchgPtr(ppQueueHead, pReq, pNext));
|
---|
920 |
|
---|
921 | /*
|
---|
922 | * Notify EMT.
|
---|
923 | */
|
---|
924 | if (pUVM->pVM)
|
---|
925 | VM_FF_SET(pUVM->pVM, VM_FF_REQUEST);
|
---|
926 | VMR3NotifyGlobalFFU(pUVM, fFlags & VMREQFLAGS_POKE ? VMNOTIFYFF_FLAGS_POKE : 0);
|
---|
927 |
|
---|
928 | /*
|
---|
929 | * Wait and return.
|
---|
930 | */
|
---|
931 | if (!(fFlags & VMREQFLAGS_NO_WAIT))
|
---|
932 | rc = VMR3ReqWait(pReq, cMillies);
|
---|
933 | LogFlow(("VMR3ReqQueue: returns %Rrc\n", rc));
|
---|
934 | }
|
---|
935 | else
|
---|
936 | {
|
---|
937 | Assert(pUVCpu);
|
---|
938 |
|
---|
939 | /*
|
---|
940 | * The requester was an EMT, just execute it.
|
---|
941 | */
|
---|
942 | pReq->enmState = VMREQSTATE_QUEUED;
|
---|
943 | rc = vmR3ReqProcessOne(pReq);
|
---|
944 | LogFlow(("VMR3ReqQueue: returns %Rrc (processed)\n", rc));
|
---|
945 | }
|
---|
946 | return rc;
|
---|
947 | }
|
---|
948 |
|
---|
949 |
|
---|
950 | /**
|
---|
951 | * Wait for a request to be completed.
|
---|
952 | *
|
---|
953 | * @returns VBox status code.
|
---|
954 | * @returns VERR_TIMEOUT if cMillies was reached without the packet being completed.
|
---|
955 | *
|
---|
956 | * @param pReq The request to wait for.
|
---|
957 | * @param cMillies Number of milliseconds to wait.
|
---|
958 | * Use RT_INDEFINITE_WAIT to only wait till it's completed.
|
---|
959 | */
|
---|
960 | VMMR3DECL(int) VMR3ReqWait(PVMREQ pReq, RTMSINTERVAL cMillies)
|
---|
961 | {
|
---|
962 | LogFlow(("VMR3ReqWait: pReq=%p cMillies=%d\n", pReq, cMillies));
|
---|
963 |
|
---|
964 | /*
|
---|
965 | * Verify the supplied package.
|
---|
966 | */
|
---|
967 | AssertMsgReturn( pReq->enmState == VMREQSTATE_QUEUED
|
---|
968 | || pReq->enmState == VMREQSTATE_PROCESSING
|
---|
969 | || pReq->enmState == VMREQSTATE_COMPLETED,
|
---|
970 | ("Invalid state %d\n", pReq->enmState),
|
---|
971 | VERR_VM_REQUEST_STATE);
|
---|
972 | AssertMsgReturn( VALID_PTR(pReq->pUVM)
|
---|
973 | && pReq->EventSem != NIL_RTSEMEVENT,
|
---|
974 | ("Invalid request package! Anyone cooking their own packages???\n"),
|
---|
975 | VERR_VM_REQUEST_INVALID_PACKAGE);
|
---|
976 | AssertMsgReturn( pReq->enmType > VMREQTYPE_INVALID
|
---|
977 | && pReq->enmType < VMREQTYPE_MAX,
|
---|
978 | ("Invalid package type %d valid range %d-%d inclusively. This was verified on alloc too...\n",
|
---|
979 | pReq->enmType, VMREQTYPE_INVALID + 1, VMREQTYPE_MAX - 1),
|
---|
980 | VERR_VM_REQUEST_INVALID_TYPE);
|
---|
981 |
|
---|
982 | /*
|
---|
983 | * Check for deadlock condition
|
---|
984 | */
|
---|
985 | PUVM pUVM = pReq->pUVM;
|
---|
986 | NOREF(pUVM);
|
---|
987 |
|
---|
988 | /*
|
---|
989 | * Wait on the package.
|
---|
990 | */
|
---|
991 | int rc;
|
---|
992 | if (cMillies != RT_INDEFINITE_WAIT)
|
---|
993 | rc = RTSemEventWait(pReq->EventSem, cMillies);
|
---|
994 | else
|
---|
995 | {
|
---|
996 | do
|
---|
997 | {
|
---|
998 | rc = RTSemEventWait(pReq->EventSem, RT_INDEFINITE_WAIT);
|
---|
999 | Assert(rc != VERR_TIMEOUT);
|
---|
1000 | } while ( pReq->enmState != VMREQSTATE_COMPLETED
|
---|
1001 | && pReq->enmState != VMREQSTATE_INVALID);
|
---|
1002 | }
|
---|
1003 | if (RT_SUCCESS(rc))
|
---|
1004 | ASMAtomicXchgSize(&pReq->fEventSemClear, true);
|
---|
1005 | if (pReq->enmState == VMREQSTATE_COMPLETED)
|
---|
1006 | rc = VINF_SUCCESS;
|
---|
1007 | LogFlow(("VMR3ReqWait: returns %Rrc\n", rc));
|
---|
1008 | Assert(rc != VERR_INTERRUPTED);
|
---|
1009 | return rc;
|
---|
1010 | }
|
---|
1011 |
|
---|
1012 |
|
---|
1013 | /**
|
---|
1014 | * Sets the relevant FF.
|
---|
1015 | *
|
---|
1016 | * @param pUVM Pointer to the user mode VM structure.
|
---|
1017 | * @param idDstCpu VMCPUID_ANY or the ID of the current CPU.
|
---|
1018 | */
|
---|
1019 | DECLINLINE(void) vmR3ReqSetFF(PUVM pUVM, VMCPUID idDstCpu)
|
---|
1020 | {
|
---|
1021 | if (RT_LIKELY(pUVM->pVM))
|
---|
1022 | {
|
---|
1023 | if (idDstCpu == VMCPUID_ANY)
|
---|
1024 | VM_FF_SET(pUVM->pVM, VM_FF_REQUEST);
|
---|
1025 | else
|
---|
1026 | VMCPU_FF_SET(pUVM->pVM->apCpusR3[idDstCpu], VMCPU_FF_REQUEST);
|
---|
1027 | }
|
---|
1028 | }
|
---|
1029 |
|
---|
1030 |
|
---|
1031 | /**
|
---|
1032 | * VMR3ReqProcessU helper that handles cases where there are more than one
|
---|
1033 | * pending request.
|
---|
1034 | *
|
---|
1035 | * @returns The oldest request.
|
---|
1036 | * @param pUVM Pointer to the user mode VM structure
|
---|
1037 | * @param idDstCpu VMCPUID_ANY or virtual CPU ID.
|
---|
1038 | * @param pReqList The list of requests.
|
---|
1039 | * @param ppReqs Pointer to the list head.
|
---|
1040 | */
|
---|
1041 | static PVMREQ vmR3ReqProcessUTooManyHelper(PUVM pUVM, VMCPUID idDstCpu, PVMREQ pReqList, PVMREQ volatile *ppReqs)
|
---|
1042 | {
|
---|
1043 | STAM_COUNTER_INC(&pUVM->vm.s.StatReqMoreThan1);
|
---|
1044 |
|
---|
1045 | /*
|
---|
1046 | * Chop off the last one (pReq).
|
---|
1047 | */
|
---|
1048 | PVMREQ pPrev;
|
---|
1049 | PVMREQ pReqRet = pReqList;
|
---|
1050 | do
|
---|
1051 | {
|
---|
1052 | pPrev = pReqRet;
|
---|
1053 | pReqRet = pReqRet->pNext;
|
---|
1054 | } while (pReqRet->pNext);
|
---|
1055 | ASMAtomicWriteNullPtr(&pPrev->pNext);
|
---|
1056 |
|
---|
1057 | /*
|
---|
1058 | * Push the others back onto the list (end of it).
|
---|
1059 | */
|
---|
1060 | Log2(("VMR3ReqProcess: Pushing back %p %p...\n", pReqList, pReqList->pNext));
|
---|
1061 | if (RT_UNLIKELY(!ASMAtomicCmpXchgPtr(ppReqs, pReqList, NULL)))
|
---|
1062 | {
|
---|
1063 | STAM_COUNTER_INC(&pUVM->vm.s.StatReqPushBackRaces);
|
---|
1064 | do
|
---|
1065 | {
|
---|
1066 | ASMNopPause();
|
---|
1067 | PVMREQ pReqList2 = ASMAtomicXchgPtrT(ppReqs, NULL, PVMREQ);
|
---|
1068 | if (pReqList2)
|
---|
1069 | {
|
---|
1070 | PVMREQ pLast = pReqList2;
|
---|
1071 | while (pLast->pNext)
|
---|
1072 | pLast = pLast->pNext;
|
---|
1073 | ASMAtomicWritePtr(&pLast->pNext, pReqList);
|
---|
1074 | pReqList = pReqList2;
|
---|
1075 | }
|
---|
1076 | } while (!ASMAtomicCmpXchgPtr(ppReqs, pReqList, NULL));
|
---|
1077 | }
|
---|
1078 |
|
---|
1079 | vmR3ReqSetFF(pUVM, idDstCpu);
|
---|
1080 | return pReqRet;
|
---|
1081 | }
|
---|
1082 |
|
---|
1083 |
|
---|
1084 | /**
|
---|
1085 | * Process pending request(s).
|
---|
1086 | *
|
---|
1087 | * This function is called from a forced action handler in the EMT
|
---|
1088 | * or from one of the EMT loops.
|
---|
1089 | *
|
---|
1090 | * @returns VBox status code.
|
---|
1091 | *
|
---|
1092 | * @param pUVM Pointer to the user mode VM structure.
|
---|
1093 | * @param idDstCpu Pass VMCPUID_ANY to process the common request queue
|
---|
1094 | * and the CPU ID for a CPU specific one. In the latter
|
---|
1095 | * case the calling thread must be the EMT of that CPU.
|
---|
1096 | * @param fPriorityOnly When set, only process the priority request queue.
|
---|
1097 | *
|
---|
1098 | * @note SMP safe (multiple EMTs trying to satisfy VM_FF_REQUESTs).
|
---|
1099 | *
|
---|
1100 | * @remarks This was made reentrant for async PDM handling, the debugger and
|
---|
1101 | * others.
|
---|
1102 | * @internal
|
---|
1103 | */
|
---|
1104 | VMMR3_INT_DECL(int) VMR3ReqProcessU(PUVM pUVM, VMCPUID idDstCpu, bool fPriorityOnly)
|
---|
1105 | {
|
---|
1106 | LogFlow(("VMR3ReqProcessU: (enmVMState=%d) idDstCpu=%d\n", pUVM->pVM ? pUVM->pVM->enmVMState : VMSTATE_CREATING, idDstCpu));
|
---|
1107 |
|
---|
1108 | /*
|
---|
1109 | * Determine which queues to process.
|
---|
1110 | */
|
---|
1111 | PVMREQ volatile *ppNormalReqs;
|
---|
1112 | PVMREQ volatile *ppPriorityReqs;
|
---|
1113 | if (idDstCpu == VMCPUID_ANY)
|
---|
1114 | {
|
---|
1115 | ppPriorityReqs = &pUVM->vm.s.pPriorityReqs;
|
---|
1116 | ppNormalReqs = !fPriorityOnly ? &pUVM->vm.s.pNormalReqs : ppPriorityReqs;
|
---|
1117 | }
|
---|
1118 | else
|
---|
1119 | {
|
---|
1120 | Assert(idDstCpu < pUVM->cCpus);
|
---|
1121 | Assert(pUVM->aCpus[idDstCpu].vm.s.NativeThreadEMT == RTThreadNativeSelf());
|
---|
1122 | ppPriorityReqs = &pUVM->aCpus[idDstCpu].vm.s.pPriorityReqs;
|
---|
1123 | ppNormalReqs = !fPriorityOnly ? &pUVM->aCpus[idDstCpu].vm.s.pNormalReqs : ppPriorityReqs;
|
---|
1124 | }
|
---|
1125 |
|
---|
1126 | /*
|
---|
1127 | * Process loop.
|
---|
1128 | *
|
---|
1129 | * We do not repeat the outer loop if we've got an informational status code
|
---|
1130 | * since that code needs processing by our caller (usually EM).
|
---|
1131 | */
|
---|
1132 | int rc = VINF_SUCCESS;
|
---|
1133 | for (;;)
|
---|
1134 | {
|
---|
1135 | /*
|
---|
1136 | * Get the pending requests.
|
---|
1137 | *
|
---|
1138 | * If there are more than one request, unlink the oldest and put the
|
---|
1139 | * rest back so that we're reentrant.
|
---|
1140 | */
|
---|
1141 | if (RT_LIKELY(pUVM->pVM))
|
---|
1142 | {
|
---|
1143 | if (idDstCpu == VMCPUID_ANY)
|
---|
1144 | VM_FF_CLEAR(pUVM->pVM, VM_FF_REQUEST);
|
---|
1145 | else
|
---|
1146 | VMCPU_FF_CLEAR(pUVM->pVM->apCpusR3[idDstCpu], VMCPU_FF_REQUEST);
|
---|
1147 | }
|
---|
1148 |
|
---|
1149 | PVMREQ pReq = ASMAtomicXchgPtrT(ppPriorityReqs, NULL, PVMREQ);
|
---|
1150 | if (pReq)
|
---|
1151 | {
|
---|
1152 | if (RT_UNLIKELY(pReq->pNext))
|
---|
1153 | pReq = vmR3ReqProcessUTooManyHelper(pUVM, idDstCpu, pReq, ppPriorityReqs);
|
---|
1154 | else if (ASMAtomicReadPtrT(ppNormalReqs, PVMREQ))
|
---|
1155 | vmR3ReqSetFF(pUVM, idDstCpu);
|
---|
1156 | }
|
---|
1157 | else
|
---|
1158 | {
|
---|
1159 | pReq = ASMAtomicXchgPtrT(ppNormalReqs, NULL, PVMREQ);
|
---|
1160 | if (!pReq)
|
---|
1161 | break;
|
---|
1162 | if (RT_UNLIKELY(pReq->pNext))
|
---|
1163 | pReq = vmR3ReqProcessUTooManyHelper(pUVM, idDstCpu, pReq, ppNormalReqs);
|
---|
1164 | }
|
---|
1165 |
|
---|
1166 | /*
|
---|
1167 | * Process the request
|
---|
1168 | */
|
---|
1169 | STAM_COUNTER_INC(&pUVM->vm.s.StatReqProcessed);
|
---|
1170 | int rc2 = vmR3ReqProcessOne(pReq);
|
---|
1171 | if ( rc2 >= VINF_EM_FIRST
|
---|
1172 | && rc2 <= VINF_EM_LAST)
|
---|
1173 | {
|
---|
1174 | rc = rc2;
|
---|
1175 | break;
|
---|
1176 | }
|
---|
1177 | }
|
---|
1178 |
|
---|
1179 | LogFlow(("VMR3ReqProcess: returns %Rrc (enmVMState=%d)\n", rc, pUVM->pVM ? pUVM->pVM->enmVMState : VMSTATE_CREATING));
|
---|
1180 | return rc;
|
---|
1181 | }
|
---|
1182 |
|
---|
1183 |
|
---|
1184 | /**
|
---|
1185 | * Process one request.
|
---|
1186 | *
|
---|
1187 | * @returns VBox status code.
|
---|
1188 | *
|
---|
1189 | * @param pReq Request packet to process.
|
---|
1190 | */
|
---|
1191 | static int vmR3ReqProcessOne(PVMREQ pReq)
|
---|
1192 | {
|
---|
1193 | LogFlow(("vmR3ReqProcessOne: pReq=%p type=%d fFlags=%#x\n", pReq, pReq->enmType, pReq->fFlags));
|
---|
1194 |
|
---|
1195 | /*
|
---|
1196 | * Process the request.
|
---|
1197 | */
|
---|
1198 | Assert(pReq->enmState == VMREQSTATE_QUEUED);
|
---|
1199 | pReq->enmState = VMREQSTATE_PROCESSING;
|
---|
1200 | int rcRet = VINF_SUCCESS; /* the return code of this function. */
|
---|
1201 | int rcReq = VERR_NOT_IMPLEMENTED; /* the request status. */
|
---|
1202 | switch (pReq->enmType)
|
---|
1203 | {
|
---|
1204 | /*
|
---|
1205 | * A packed down call frame.
|
---|
1206 | */
|
---|
1207 | case VMREQTYPE_INTERNAL:
|
---|
1208 | {
|
---|
1209 | uintptr_t *pauArgs = &pReq->u.Internal.aArgs[0];
|
---|
1210 | union
|
---|
1211 | {
|
---|
1212 | PFNRT pfn;
|
---|
1213 | DECLCALLBACKMEMBER(int, pfn00,(void));
|
---|
1214 | DECLCALLBACKMEMBER(int, pfn01,(uintptr_t));
|
---|
1215 | DECLCALLBACKMEMBER(int, pfn02,(uintptr_t, uintptr_t));
|
---|
1216 | DECLCALLBACKMEMBER(int, pfn03,(uintptr_t, uintptr_t, uintptr_t));
|
---|
1217 | DECLCALLBACKMEMBER(int, pfn04,(uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1218 | DECLCALLBACKMEMBER(int, pfn05,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1219 | DECLCALLBACKMEMBER(int, pfn06,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1220 | DECLCALLBACKMEMBER(int, pfn07,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1221 | DECLCALLBACKMEMBER(int, pfn08,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1222 | DECLCALLBACKMEMBER(int, pfn09,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1223 | DECLCALLBACKMEMBER(int, pfn10,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1224 | DECLCALLBACKMEMBER(int, pfn11,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1225 | DECLCALLBACKMEMBER(int, pfn12,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1226 | DECLCALLBACKMEMBER(int, pfn13,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1227 | DECLCALLBACKMEMBER(int, pfn14,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1228 | DECLCALLBACKMEMBER(int, pfn15,(uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t));
|
---|
1229 | } u;
|
---|
1230 | u.pfn = pReq->u.Internal.pfn;
|
---|
1231 | #ifdef RT_ARCH_AMD64
|
---|
1232 | switch (pReq->u.Internal.cArgs)
|
---|
1233 | {
|
---|
1234 | case 0: rcRet = u.pfn00(); break;
|
---|
1235 | case 1: rcRet = u.pfn01(pauArgs[0]); break;
|
---|
1236 | case 2: rcRet = u.pfn02(pauArgs[0], pauArgs[1]); break;
|
---|
1237 | case 3: rcRet = u.pfn03(pauArgs[0], pauArgs[1], pauArgs[2]); break;
|
---|
1238 | case 4: rcRet = u.pfn04(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3]); break;
|
---|
1239 | case 5: rcRet = u.pfn05(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4]); break;
|
---|
1240 | case 6: rcRet = u.pfn06(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5]); break;
|
---|
1241 | case 7: rcRet = u.pfn07(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5], pauArgs[6]); break;
|
---|
1242 | case 8: rcRet = u.pfn08(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5], pauArgs[6], pauArgs[7]); break;
|
---|
1243 | case 9: rcRet = u.pfn09(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5], pauArgs[6], pauArgs[7], pauArgs[8]); break;
|
---|
1244 | case 10: rcRet = u.pfn10(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5], pauArgs[6], pauArgs[7], pauArgs[8], pauArgs[9]); break;
|
---|
1245 | case 11: rcRet = u.pfn11(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5], pauArgs[6], pauArgs[7], pauArgs[8], pauArgs[9], pauArgs[10]); break;
|
---|
1246 | case 12: rcRet = u.pfn12(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5], pauArgs[6], pauArgs[7], pauArgs[8], pauArgs[9], pauArgs[10], pauArgs[11]); break;
|
---|
1247 | case 13: rcRet = u.pfn13(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5], pauArgs[6], pauArgs[7], pauArgs[8], pauArgs[9], pauArgs[10], pauArgs[11], pauArgs[12]); break;
|
---|
1248 | case 14: rcRet = u.pfn14(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5], pauArgs[6], pauArgs[7], pauArgs[8], pauArgs[9], pauArgs[10], pauArgs[11], pauArgs[12], pauArgs[13]); break;
|
---|
1249 | case 15: rcRet = u.pfn15(pauArgs[0], pauArgs[1], pauArgs[2], pauArgs[3], pauArgs[4], pauArgs[5], pauArgs[6], pauArgs[7], pauArgs[8], pauArgs[9], pauArgs[10], pauArgs[11], pauArgs[12], pauArgs[13], pauArgs[14]); break;
|
---|
1250 | default:
|
---|
1251 | AssertReleaseMsgFailed(("cArgs=%d\n", pReq->u.Internal.cArgs));
|
---|
1252 | rcRet = rcReq = VERR_VM_REQUEST_TOO_MANY_ARGS_IPE;
|
---|
1253 | break;
|
---|
1254 | }
|
---|
1255 | #else /* x86: */
|
---|
1256 | size_t cbArgs = pReq->u.Internal.cArgs * sizeof(uintptr_t);
|
---|
1257 | # ifdef __GNUC__
|
---|
1258 | __asm__ __volatile__("movl %%esp, %%edx\n\t"
|
---|
1259 | "subl %2, %%esp\n\t"
|
---|
1260 | "andl $0xfffffff0, %%esp\n\t"
|
---|
1261 | "shrl $2, %2\n\t"
|
---|
1262 | "movl %%esp, %%edi\n\t"
|
---|
1263 | "rep movsl\n\t"
|
---|
1264 | "movl %%edx, %%edi\n\t"
|
---|
1265 | "call *%%eax\n\t"
|
---|
1266 | "mov %%edi, %%esp\n\t"
|
---|
1267 | : "=a" (rcRet),
|
---|
1268 | "=S" (pauArgs),
|
---|
1269 | "=c" (cbArgs)
|
---|
1270 | : "0" (u.pfn),
|
---|
1271 | "1" (pauArgs),
|
---|
1272 | "2" (cbArgs)
|
---|
1273 | : "edi", "edx");
|
---|
1274 | # else
|
---|
1275 | __asm
|
---|
1276 | {
|
---|
1277 | xor edx, edx /* just mess it up. */
|
---|
1278 | mov eax, u.pfn
|
---|
1279 | mov ecx, cbArgs
|
---|
1280 | shr ecx, 2
|
---|
1281 | mov esi, pauArgs
|
---|
1282 | mov ebx, esp
|
---|
1283 | sub esp, cbArgs
|
---|
1284 | and esp, 0xfffffff0
|
---|
1285 | mov edi, esp
|
---|
1286 | rep movsd
|
---|
1287 | call eax
|
---|
1288 | mov esp, ebx
|
---|
1289 | mov rcRet, eax
|
---|
1290 | }
|
---|
1291 | # endif
|
---|
1292 | #endif /* x86 */
|
---|
1293 | if ((pReq->fFlags & (VMREQFLAGS_RETURN_MASK)) == VMREQFLAGS_VOID)
|
---|
1294 | rcRet = VINF_SUCCESS;
|
---|
1295 | rcReq = rcRet;
|
---|
1296 | break;
|
---|
1297 | }
|
---|
1298 |
|
---|
1299 | default:
|
---|
1300 | AssertMsgFailed(("pReq->enmType=%d\n", pReq->enmType));
|
---|
1301 | rcReq = VERR_NOT_IMPLEMENTED;
|
---|
1302 | break;
|
---|
1303 | }
|
---|
1304 |
|
---|
1305 | /*
|
---|
1306 | * Complete the request.
|
---|
1307 | */
|
---|
1308 | pReq->iStatus = rcReq;
|
---|
1309 | pReq->enmState = VMREQSTATE_COMPLETED;
|
---|
1310 | if (pReq->fFlags & VMREQFLAGS_NO_WAIT)
|
---|
1311 | {
|
---|
1312 | /* Free the packet, nobody is waiting. */
|
---|
1313 | LogFlow(("vmR3ReqProcessOne: Completed request %p: rcReq=%Rrc rcRet=%Rrc - freeing it\n",
|
---|
1314 | pReq, rcReq, rcRet));
|
---|
1315 | VMR3ReqFree(pReq);
|
---|
1316 | }
|
---|
1317 | else
|
---|
1318 | {
|
---|
1319 | /* Notify the waiter and him free up the packet. */
|
---|
1320 | LogFlow(("vmR3ReqProcessOne: Completed request %p: rcReq=%Rrc rcRet=%Rrc - notifying waiting thread\n",
|
---|
1321 | pReq, rcReq, rcRet));
|
---|
1322 | ASMAtomicXchgSize(&pReq->fEventSemClear, false);
|
---|
1323 | int rc2 = RTSemEventSignal(pReq->EventSem);
|
---|
1324 | if (RT_FAILURE(rc2))
|
---|
1325 | {
|
---|
1326 | AssertRC(rc2);
|
---|
1327 | rcRet = rc2;
|
---|
1328 | }
|
---|
1329 | }
|
---|
1330 |
|
---|
1331 | return rcRet;
|
---|
1332 | }
|
---|
1333 |
|
---|