TestBoxHelper.cpp@ 71214

Last change on this file since 71214 was 69794, checked in by vboxsync, 7 years ago
testboxscript/TestBoxHelper.cpp: Use kern.hv_support to detect nested paging on darwin.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 27.8 KB

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1	/* $Id: TestBoxHelper.cpp 69794 2017-11-21 14:48:12Z vboxsync $ */
2	/** @file
3	* VirtualBox Validation Kit - Testbox C Helper Utility.
4	*/
5
6	/*
7	* Copyright (C) 2012-2017 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	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27
28	/*********************************************************************************************************************************
29	* Header Files *
30	*********************************************************************************************************************************/
31	#include <iprt/buildconfig.h>
32	#include <iprt/env.h>
33	#include <iprt/file.h>
34	#include <iprt/path.h>
35	#include <iprt/getopt.h>
36	#include <iprt/initterm.h>
37	#include <iprt/mem.h>
38	#include <iprt/message.h>
39	#include <iprt/mp.h>
40	#include <iprt/string.h>
41	#include <iprt/stream.h>
42	#include <iprt/system.h>
43
44	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
45	# include <iprt/x86.h>
46	# include <iprt/asm-amd64-x86.h>
47	#endif
48
49	#ifdef RT_OS_DARWIN
50	# include <sys/types.h>
51	# include <sys/sysctl.h>
52	#endif
53
54
55
56	/**
57	* Does one free space wipe, using the given filename.
58	*
59	* @returns RTEXITCODE_SUCCESS on success, RTEXITCODE_FAILURE on failure (fully
60	* bitched).
61	* @param pszFilename The filename to use for wiping free space. Will be
62	* replaced and afterwards deleted.
63	* @param pvFiller The filler block buffer.
64	* @param cbFiller The size of the filler block buffer.
65	* @param cbMinLeftOpt When to stop wiping.
66	*/
67	static RTEXITCODE doOneFreeSpaceWipe(const char pszFilename, void const pvFiller, size_t cbFiller, uint64_t cbMinLeftOpt)
68	{
69	/*
70	* Open the file.
71	*/
72	RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
73	RTFILE hFile = NIL_RTFILE;
74	int rc = RTFileOpen(&hFile, pszFilename,
75	RTFILE_O_WRITE \| RTFILE_O_DENY_NONE \| RTFILE_O_CREATE_REPLACE \| (0775 << RTFILE_O_CREATE_MODE_SHIFT));
76	if (RT_SUCCESS(rc))
77	{
78	/*
79	* Query the amount of available free space. Figure out which API we should use.
80	*/
81	RTFOFF cbTotal = 0;
82	RTFOFF cbFree = 0;
83	rc = RTFileQueryFsSizes(hFile, &cbTotal, &cbFree, NULL, NULL);
84	bool const fFileHandleApiSupported = rc != VERR_NOT_SUPPORTED && rc != VERR_NOT_IMPLEMENTED;
85	if (!fFileHandleApiSupported)
86	rc = RTFsQuerySizes(pszFilename, &cbTotal, &cbFree, NULL, NULL);
87	if (RT_SUCCESS(rc))
88	{
89	RTPrintf("%s: %'9RTfoff MiB out of %'9RTfoff are free\n", pszFilename, cbFree / _1M, cbTotal / _1M);
90
91	/*
92	* Start filling up the free space, down to the last 32MB.
93	*/
94	uint64_t const nsStart = RTTimeNanoTS(); /* for speed calcs */
95	uint64_t nsStat = nsStart; /* for speed calcs */
96	uint64_t cbStatWritten = 0; /* for speed calcs */
97	RTFOFF const cbMinLeft = RT_MAX(cbMinLeftOpt, cbFiller * 2);
98	RTFOFF cbLeftToWrite = cbFree - cbMinLeft;
99	uint64_t cbWritten = 0;
100	uint32_t iLoop = 0;
101	while (cbLeftToWrite >= (RTFOFF)cbFiller)
102	{
103	rc = RTFileWrite(hFile, pvFiller, cbFiller, NULL);
104	if (RT_FAILURE(rc))
105	{
106	if (rc == VERR_DISK_FULL)
107	RTPrintf("%s: Disk full after writing %'9RU64 MiB\n", pszFilename, cbWritten / _1M);
108	else
109	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "%s: Write error after %'RU64 bytes: %Rrc\n",
110	pszFilename, cbWritten, rc);
111	break;
112	}
113
114	/* Flush every now and then as we approach a completely full disk. */
115	if (cbLeftToWrite <= _1G && (iLoop & (cbLeftToWrite > _128M ? 15 : 3)) == 0)
116	RTFileFlush(hFile);
117
118	/*
119	* Advance and maybe recheck the amount of free space.
120	*/
121	cbWritten += cbFiller;
122	cbLeftToWrite -= (ssize_t)cbFiller;
123	iLoop++;
124	if ((iLoop & (16 - 1)) == 0 \|\| cbLeftToWrite < _256M)
125	{
126	RTFOFF cbFreeUpdated;
127	if (fFileHandleApiSupported)
128	rc = RTFileQueryFsSizes(hFile, NULL, &cbFreeUpdated, NULL, NULL);
129	else
130	rc = RTFsQuerySizes(pszFilename, NULL, &cbFreeUpdated, NULL, NULL);
131	if (RT_SUCCESS(rc))
132	{
133	cbFree = cbFreeUpdated;
134	cbLeftToWrite = cbFree - cbMinLeft;
135	}
136	else
137	{
138	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "%s: Failed to query free space after %'RU64 bytes: %Rrc\n",
139	pszFilename, cbWritten, rc);
140	break;
141	}
142	if ((iLoop & (512 - 1)) == 0)
143	{
144	uint64_t const nsNow = RTTimeNanoTS();
145	uint64_t cNsInterval = nsNow - nsStat;
146	uint64_t cbInterval = cbWritten - cbStatWritten;
147	uint64_t cbIntervalPerSec = cbInterval ? (uint64_t)(cbInterval / (cNsInterval / (double)RT_NS_1SEC)) : 0;
148
149	RTPrintf("%s: %'9RTfoff MiB out of %'9RTfoff are free after writing %'9RU64 MiB (%'5RU64 MiB/s)\n",
150	pszFilename, cbFree / _1M, cbTotal / _1M, cbWritten / _1M, cbIntervalPerSec / _1M);
151	nsStat = nsNow;
152	cbStatWritten = cbWritten;
153	}
154	}
155	}
156
157	/*
158	* Now flush the file and then reduce the size a little before closing
159	* it so the system won't entirely run out of space. The flush should
160	* ensure the data has actually hit the disk.
161	*/
162	rc = RTFileFlush(hFile);
163	if (RT_FAILURE(rc))
164	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "%s: Flush failed at %'RU64 bytes: %Rrc\n", pszFilename, cbWritten, rc);
165
166	uint64_t cbReduced = cbWritten > _512M ? cbWritten - _512M : cbWritten / 2;
167	rc = RTFileSetSize(hFile, cbReduced);
168	if (RT_FAILURE(rc))
169	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "%s: Failed to reduce file size from %'RU64 to %'RU64 bytes: %Rrc\n",
170	pszFilename, cbWritten, cbReduced, rc);
171
172	/* Issue a summary statements. */
173	uint64_t cNsElapsed = RTTimeNanoTS() - nsStart;
174	uint64_t cbPerSec = cbWritten ? (uint64_t)(cbWritten / (cNsElapsed / (double)RT_NS_1SEC)) : 0;
175	RTPrintf("%s: Wrote %'RU64 MiB in %'RU64 s, avg %'RU64 MiB/s.\n",
176	pszFilename, cbWritten / _1M, cNsElapsed / RT_NS_1SEC, cbPerSec / _1M);
177	}
178	else
179	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "%s: Initial free space query failed: %Rrc \n", pszFilename, rc);
180
181	RTFileClose(hFile);
182
183	/*
184	* Delete the file.
185	*/
186	rc = RTFileDelete(pszFilename);
187	if (RT_FAILURE(rc))
188	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "%s: Delete failed: %Rrc !!\n", pszFilename, rc);
189	}
190	else
191	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "%s: Open failed: %Rrc\n", pszFilename, rc);
192	return rcExit;
193	}
194
195
196	/**
197	* Wipes free space on one or more volumes by creating large files.
198	*/
199	static RTEXITCODE handlerWipeFreeSpace(int argc, char **argv)
200	{
201	/*
202	* Parse arguments.
203	*/
204	const char *apszDefFiles[2] = { "./wipefree.spc", NULL };
205	bool fAll = false;
206	uint32_t u32Filler = UINT32_C(0xf6f6f6f6);
207	uint64_t cbMinLeftOpt = _32M;
208
209	static RTGETOPTDEF const s_aOptions[] =
210	{
211	{ "--all", 'a', RTGETOPT_REQ_NOTHING },
212	{ "--filler", 'f', RTGETOPT_REQ_UINT32 },
213	{ "--min-free", 'm', RTGETOPT_REQ_UINT64 },
214	};
215	RTGETOPTSTATE State;
216	RTGetOptInit(&State, argc, argv, &s_aOptions[0], RT_ELEMENTS(s_aOptions), 1, RTGETOPTINIT_FLAGS_OPTS_FIRST);
217	RTGETOPTUNION ValueUnion;
218	int chOpt;
219	while ( (chOpt = RTGetOpt(&State, &ValueUnion)) != 0
220	&& chOpt != VINF_GETOPT_NOT_OPTION)
221	{
222	switch (chOpt)
223	{
224	case 'a':
225	fAll = true;
226	break;
227	case 'f':
228	u32Filler = ValueUnion.u32;
229	break;
230	case 'm':
231	cbMinLeftOpt = ValueUnion.u64;
232	break;
233	case 'h':
234	RTPrintf("usage: wipefrespace [options] [filename1 [..]]\n"
235	"\n"
236	"Options:\n"
237	" -a, --all\n"
238	" Try do the free space wiping on all seemingly relevant file systems.\n"
239	" Changes the meaning of the filenames "
240	" This is not yet implemented\n"
241	" -p, --filler <32-bit value>\n"
242	" What to fill the blocks we write with.\n"
243	" Default: 0xf6f6f6f6\n"
244	" -m, --min-free <64-bit byte count>\n"
245	" Specifies when to stop in terms of free disk space (in bytes).\n"
246	" Default: 32MB\n"
247	"\n"
248	"Zero or more names of files to do the free space wiping thru can be given.\n"
249	"When --all is NOT used, each of the files are used to do free space wiping on\n"
250	"the volume they will live on. However, when --all is in effect the files are\n"
251	"appended to the volume mountpoints and only the first that can be created will\n"
252	"be used. Files (used ones) will be removed when done.\n"
253	"\n"
254	"If no filename is given, the default is: %s\n"
255	, apszDefFiles[0]);
256	return RTEXITCODE_SUCCESS;
257
258	default:
259	return RTGetOptPrintError(chOpt, &ValueUnion);
260	}
261	}
262
263	char **papszFiles;
264	if (chOpt == 0)
265	papszFiles = (char **)apszDefFiles;
266	else
267	papszFiles = RTGetOptNonOptionArrayPtr(&State);
268
269	/*
270	* Allocate and prep a memory which we'll write over and over again.
271	*/
272	uint32_t cbFiller = _2M;
273	uint32_t pu32Filler = (uint32_t )RTMemPageAlloc(cbFiller);
274	while (!pu32Filler)
275	{
276	cbFiller <<= 1;
277	if (cbFiller >= _4K)
278	pu32Filler = (uint32_t *)RTMemPageAlloc(cbFiller);
279	else
280	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTMemPageAlloc failed for sizes between 4KB and 2MB!\n");
281	}
282	for (uint32_t i = 0; i < cbFiller / sizeof(pu32Filler[0]); i++)
283	pu32Filler[i] = u32Filler;
284
285	/*
286	* Do the requested work.
287	*/
288	RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
289	if (!fAll)
290	{
291	for (uint32_t iFile = 0; papszFiles[iFile] != NULL; iFile++)
292	{
293	RTEXITCODE rcExit2 = doOneFreeSpaceWipe(papszFiles[iFile], pu32Filler, cbFiller, cbMinLeftOpt);
294	if (rcExit2 != RTEXITCODE_SUCCESS && rcExit == RTEXITCODE_SUCCESS)
295	rcExit = rcExit2;
296	}
297	}
298	else
299	{
300	/*
301	* Reject --all for now.
302	*/
303	rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "The --all option is not yet implemented!\n");
304	}
305
306	RTMemPageFree(pu32Filler, cbFiller);
307	return rcExit;
308	}
309
310
311	/**
312	* Generates a kind of report of the hardware, software and whatever else we
313	* think might be useful to know about the testbox.
314	*/
315	static RTEXITCODE handlerReport(int argc, char **argv)
316	{
317	NOREF(argc); NOREF(argv);
318
319	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
320	/*
321	* For now, a simple CPUID dump. Need to figure out how to share code
322	* like this with other bits, putting it in IPRT.
323	*/
324	RTPrintf("CPUID Dump\n"
325	"Leaf eax ebx ecx edx\n"
326	"---------------------------------------------\n");
327	static uint32_t const s_auRanges[] =
328	{
329	UINT32_C(0x00000000),
330	UINT32_C(0x80000000),
331	UINT32_C(0x80860000),
332	UINT32_C(0xc0000000),
333	UINT32_C(0x40000000),
334	};
335	for (uint32_t iRange = 0; iRange < RT_ELEMENTS(s_auRanges); iRange++)
336	{
337	uint32_t const uFirst = s_auRanges[iRange];
338
339	uint32_t uEax, uEbx, uEcx, uEdx;
340	ASMCpuIdExSlow(uFirst, 0, 0, 0, &uEax, &uEbx, &uEcx, &uEdx);
341	if (uEax >= uFirst && uEax < uFirst + 100)
342	{
343	uint32_t const cLeafs = RT_MIN(uEax - uFirst + 1, 32);
344	for (uint32_t iLeaf = 0; iLeaf < cLeafs; iLeaf++)
345	{
346	uint32_t uLeaf = uFirst + iLeaf;
347	ASMCpuIdExSlow(uLeaf, 0, 0, 0, &uEax, &uEbx, &uEcx, &uEdx);
348
349	/* Clear APIC IDs to avoid submitting new reports all the time. */
350	if (uLeaf == 1)
351	uEbx &= UINT32_C(0x00ffffff);
352	if (uLeaf == 0xb)
353	uEdx = 0;
354	if (uLeaf == 0x8000001e)
355	uEax = 0;
356
357	/* Clear some other node/cpu/core/thread ids. */
358	if (uLeaf == 0x8000001e)
359	{
360	uEbx &= UINT32_C(0xffffff00);
361	uEcx &= UINT32_C(0xffffff00);
362	}
363
364	RTPrintf("%08x: %08x %08x %08x %08x\n", uLeaf, uEax, uEbx, uEcx, uEdx);
365	}
366	}
367	}
368	RTPrintf("\n");
369
370	/*
371	* DMI info.
372	*/
373	RTPrintf("DMI Info\n"
374	"--------\n");
375	static const struct { const char *pszName; RTSYSDMISTR enmDmiStr; } s_aDmiStrings[] =
376	{
377	{ "Product Name", RTSYSDMISTR_PRODUCT_NAME },
378	{ "Product version", RTSYSDMISTR_PRODUCT_VERSION },
379	{ "Product UUID", RTSYSDMISTR_PRODUCT_UUID },
380	{ "Product Serial", RTSYSDMISTR_PRODUCT_SERIAL },
381	{ "System Manufacturer", RTSYSDMISTR_MANUFACTURER },
382	};
383	for (uint32_t iDmiString = 0; iDmiString < RT_ELEMENTS(s_aDmiStrings); iDmiString++)
384	{
385	char szTmp[4096];
386	RT_ZERO(szTmp);
387	int rc = RTSystemQueryDmiString(s_aDmiStrings[iDmiString].enmDmiStr, szTmp, sizeof(szTmp) - 1);
388	if (RT_SUCCESS(rc))
389	RTPrintf("%25s: %s\n", s_aDmiStrings[iDmiString].pszName, RTStrStrip(szTmp));
390	else
391	RTPrintf("%25s: %s [rc=%Rrc]\n", s_aDmiStrings[iDmiString].pszName, RTStrStrip(szTmp), rc);
392	}
393	RTPrintf("\n");
394
395	#else
396	#endif
397
398	/*
399	* Dump the environment.
400	*/
401	RTPrintf("Environment\n"
402	"-----------\n");
403	RTENV hEnv;
404	int rc = RTEnvClone(&hEnv, RTENV_DEFAULT);
405	if (RT_SUCCESS(rc))
406	{
407	uint32_t cVars = RTEnvCountEx(hEnv);
408	for (uint32_t iVar = 0; iVar < cVars; iVar++)
409	{
410	char szVar[1024];
411	char szValue[16384];
412	rc = RTEnvGetByIndexEx(hEnv, iVar, szVar, sizeof(szVar), szValue, sizeof(szValue));
413
414	/* zap the value of variables that are subject to change. */
415	if ( (RT_SUCCESS(rc) \|\| rc == VERR_BUFFER_OVERFLOW)
416	&& ( !strcmp(szVar, "TESTBOX_SCRIPT_REV")
417	\|\| !strcmp(szVar, "TESTBOX_ID")
418	\|\| !strcmp(szVar, "TESTBOX_SCRATCH_SIZE")
419	\|\| !strcmp(szVar, "TESTBOX_TIMEOUT")
420	\|\| !strcmp(szVar, "TESTBOX_TIMEOUT_ABS")
421	\|\| !strcmp(szVar, "TESTBOX_TEST_SET_ID")
422	)
423	)
424	strcpy(szValue, "<volatile>");
425
426	if (RT_SUCCESS(rc))
427	RTPrintf("%25s=%s\n", szVar, szValue);
428	else if (rc == VERR_BUFFER_OVERFLOW)
429	RTPrintf("%25s=%s [VERR_BUFFER_OVERFLOW]\n", szVar, szValue);
430	else
431	RTPrintf("rc=%Rrc\n", rc);
432	}
433	RTEnvDestroy(hEnv);
434	}
435
436	/** @todo enumerate volumes and whatnot. */
437
438	int cch = RTPrintf("\n");
439	return cch > 0 ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
440	}
441
442
443	/** Print the total memory size in bytes. */
444	static RTEXITCODE handlerMemSize(int argc, char **argv)
445	{
446	NOREF(argc); NOREF(argv);
447
448	uint64_t cb;
449	int rc = RTSystemQueryTotalRam(&cb);
450	if (RT_SUCCESS(rc))
451	{
452	int cch = RTPrintf("%llu\n", cb);
453	return cch > 0 ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
454	}
455	RTPrintf("%Rrc\n", rc);
456	return RTEXITCODE_FAILURE;
457	}
458
459	typedef enum { HWVIRTTYPE_NONE, HWVIRTTYPE_VTX, HWVIRTTYPE_AMDV } HWVIRTTYPE;
460	static HWVIRTTYPE isHwVirtSupported(void)
461	{
462	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
463	uint32_t uEax, uEbx, uEcx, uEdx;
464
465	/* VT-x */
466	ASMCpuId(0x00000000, &uEax, &uEbx, &uEcx, &uEdx);
467	if (ASMIsValidStdRange(uEax))
468	{
469	ASMCpuId(0x00000001, &uEax, &uEbx, &uEcx, &uEdx);
470	if (uEcx & X86_CPUID_FEATURE_ECX_VMX)
471	return HWVIRTTYPE_VTX;
472	}
473
474	/* AMD-V */
475	ASMCpuId(0x80000000, &uEax, &uEbx, &uEcx, &uEdx);
476	if (ASMIsValidExtRange(uEax))
477	{
478	ASMCpuId(0x80000001, &uEax, &uEbx, &uEcx, &uEdx);
479	if (uEcx & X86_CPUID_AMD_FEATURE_ECX_SVM)
480	return HWVIRTTYPE_AMDV;
481	}
482	#endif
483
484	return HWVIRTTYPE_NONE;
485	}
486
487	/** Print the 'true' if VT-x or AMD-v is supported, 'false' it not. */
488	static RTEXITCODE handlerCpuHwVirt(int argc, char **argv)
489	{
490	NOREF(argc); NOREF(argv);
491	int cch = RTPrintf(isHwVirtSupported() != HWVIRTTYPE_NONE ? "true\n" : "false\n");
492	return cch > 0 ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
493	}
494
495
496	/** Print the 'true' if nested paging is supported, 'false' if not and
497	* 'dunno' if we cannot tell. */
498	static RTEXITCODE handlerCpuNestedPaging(int argc, char **argv)
499	{
500	NOREF(argc); NOREF(argv);
501	HWVIRTTYPE enmHwVirt = isHwVirtSupported();
502	int fSupported = -1;
503
504	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
505	if (enmHwVirt == HWVIRTTYPE_AMDV)
506	{
507	uint32_t uEax, uEbx, uEcx, uEdx;
508	ASMCpuId(0x80000000, &uEax, &uEbx, &uEcx, &uEdx);
509	if (ASMIsValidExtRange(uEax) && uEax >= 0x8000000a)
510	{
511	ASMCpuId(0x8000000a, &uEax, &uEbx, &uEcx, &uEdx);
512	if (uEdx & RT_BIT(0) /* AMD_CPUID_SVM_FEATURE_EDX_NESTED_PAGING */)
513	fSupported = 1;
514	else
515	fSupported = 0;
516	}
517	}
518	# if defined(RT_OS_LINUX)
519	else if (enmHwVirt == HWVIRTTYPE_VTX)
520	{
521	/*
522	* For Intel there is no generic way to query EPT support but on
523	* Linux we can resort to checking for the EPT flag in /proc/cpuinfo
524	*/
525	RTFILE hFileCpu;
526	int rc = RTFileOpen(&hFileCpu, "/proc/cpuinfo", RTFILE_O_OPEN \| RTFILE_O_READ \| RTFILE_O_DENY_NONE);
527	if (RT_SUCCESS(rc))
528	{
529	/*
530	* Read enough to fit the first CPU entry in, we only check the first
531	* CPU as all the others should have the same features.
532	*/
533	char szBuf[_4K];
534	size_t cbRead = 0;
535
536	RT_ZERO(szBuf); /* Ensure proper termination. */
537	rc = RTFileRead(hFileCpu, &szBuf[0], sizeof(szBuf) - 1, &cbRead);
538	if (RT_SUCCESS(rc))
539	{
540	/* Look for the start of the flags section. */
541	char *pszStrFlags = RTStrStr(&szBuf[0], "flags");
542	if (pszStrFlags)
543	{
544	/* Look for the end as indicated by new line. */
545	char *pszEnd = pszStrFlags;
546	while ( *pszEnd != '\0'
547	&& *pszEnd != '\n')
548	pszEnd++;
549	pszEnd = '\0'; / Cut off everything after the flags section. */
550
551	/*
552	* Search for the ept flag indicating support and the absence meaning
553	* not supported.
554	*/
555	if (RTStrStr(pszStrFlags, "ept"))
556	fSupported = 1;
557	else
558	fSupported = 0;
559	}
560	}
561	RTFileClose(hFileCpu);
562	}
563	}
564	# elif defined(RT_OS_DARWIN)
565	else if (enmHwVirt == HWVIRTTYPE_VTX)
566	{
567	/*
568	* The kern.hv_support parameter indicates support for the hypervisor API in the
569	* kernel, which in turn is documented require nested paging and unrestricted
570	* guest mode. So, if it's there and set we've got nested paging. Howeber, if
571	* it's there and clear we have not definite answer as it might be due to lack
572	* of unrestricted guest mode support.
573	*/
574	int32_t fHvSupport = 0;
575	size_t cbOld = sizeof(fHvSupport);
576	if (sysctlbyname("kern.hv_support", &fHvSupport, &cbOld, NULL, 0) == 0)
577	{
578	if (fHvSupport != 0)
579	fSupported = true;
580	}
581	}
582	# endif
583	#endif
584
585	int cch = RTPrintf(fSupported == 1 ? "true\n" : fSupported == 0 ? "false\n" : "dunno\n");
586	return cch > 0 ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
587	}
588
589
590	/** Print the 'true' if long mode guests are supported, 'false' if not and
591	* 'dunno' if we cannot tell. */
592	static RTEXITCODE handlerCpuLongMode(int argc, char **argv)
593	{
594	NOREF(argc); NOREF(argv);
595	HWVIRTTYPE enmHwVirt = isHwVirtSupported();
596	int fSupported = 0;
597
598	if (enmHwVirt != HWVIRTTYPE_NONE)
599	{
600	#if defined(RT_ARCH_AMD64)
601	fSupported = 1; /* We're running long mode, so it must be supported. */
602
603	#elif defined(RT_ARCH_X86)
604	# ifdef RT_OS_DARWIN
605	/* On darwin, we just ask the kernel via sysctl. Rules are a bit different here. */
606	int f64bitCapable = 0;
607	size_t cbParameter = sizeof(f64bitCapable);
608	int rc = sysctlbyname("hw.cpu64bit_capable", &f64bitCapable, &cbParameter, NULL, NULL);
609	if (rc != -1)
610	fSupported = f64bitCapable != 0;
611	else
612	# endif
613	{
614	/* PAE and HwVirt are required */
615	uint32_t uEax, uEbx, uEcx, uEdx;
616	ASMCpuId(0x00000000, &uEax, &uEbx, &uEcx, &uEdx);
617	if (ASMIsValidStdRange(uEax))
618	{
619	ASMCpuId(0x00000001, &uEax, &uEbx, &uEcx, &uEdx);
620	if (uEdx & X86_CPUID_FEATURE_EDX_PAE)
621	{
622	/* AMD will usually advertise long mode in 32-bit mode. Intel OTOH,
623	won't necessarily do so. */
624	ASMCpuId(0x80000000, &uEax, &uEbx, &uEcx, &uEdx);
625	if (ASMIsValidExtRange(uEax))
626	{
627	ASMCpuId(0x80000001, &uEax, &uEbx, &uEcx, &uEdx);
628	if (uEdx & X86_CPUID_EXT_FEATURE_EDX_LONG_MODE)
629	fSupported = 1;
630	else if (enmHwVirt != HWVIRTTYPE_AMDV)
631	fSupported = -1;
632	}
633	}
634	}
635	}
636	#endif
637	}
638
639	int cch = RTPrintf(fSupported == 1 ? "true\n" : fSupported == 0 ? "false\n" : "dunno\n");
640	return cch > 0 ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
641	}
642
643
644	/** Print the CPU 'revision', if available. */
645	static RTEXITCODE handlerCpuRevision(int argc, char **argv)
646	{
647	NOREF(argc); NOREF(argv);
648
649	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
650	uint32_t uEax, uEbx, uEcx, uEdx;
651	ASMCpuId(0, &uEax, &uEbx, &uEcx, &uEdx);
652	if (ASMIsValidStdRange(uEax) && uEax >= 1)
653	{
654	uint32_t uEax1 = ASMCpuId_EAX(1);
655	uint32_t uVersion = (ASMGetCpuFamily(uEax1) << 24)
656	\| (ASMGetCpuModel(uEax1, ASMIsIntelCpuEx(uEbx, uEcx, uEdx)) << 8)
657	\| ASMGetCpuStepping(uEax1);
658	int cch = RTPrintf("%#x\n", uVersion);
659	return cch > 0 ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
660	}
661	#endif
662	return RTEXITCODE_FAILURE;
663	}
664
665
666	/** Print the CPU name, if available. */
667	static RTEXITCODE handlerCpuName(int argc, char **argv)
668	{
669	NOREF(argc); NOREF(argv);
670
671	char szTmp[1024];
672	int rc = RTMpGetDescription(NIL_RTCPUID, szTmp, sizeof(szTmp));
673	if (RT_SUCCESS(rc))
674	{
675	int cch = RTPrintf("%s\n", RTStrStrip(szTmp));
676	return cch > 0 ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
677	}
678	return RTEXITCODE_FAILURE;
679	}
680
681
682	/** Print the CPU vendor name, 'GenuineIntel' and such. */
683	static RTEXITCODE handlerCpuVendor(int argc, char **argv)
684	{
685	NOREF(argc); NOREF(argv);
686
687	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
688	uint32_t uEax, uEbx, uEcx, uEdx;
689	ASMCpuId(0, &uEax, &uEbx, &uEcx, &uEdx);
690	int cch = RTPrintf("%.04s%.04s%.04s\n", &uEbx, &uEdx, &uEcx);
691	#else
692	int cch = RTPrintf("%s\n", RTBldCfgTargetArch());
693	#endif
694	return cch > 0 ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
695	}
696
697
698
699	int main(int argc, char **argv)
700	{
701	int rc = RTR3InitExe(argc, &argv, 0);
702	if (RT_FAILURE(rc))
703	return RTMsgInitFailure(rc);
704
705	/*
706	* The first argument is a command. Figure out which and call its handler.
707	*/
708	static const struct
709	{
710	const char *pszCommand;
711	RTEXITCODE (pfnHandler)(int argc, char *argv);
712	bool fNoArgs;
713	} s_aHandlers[] =
714	{
715	{ "cpuvendor", handlerCpuVendor, true },
716	{ "cpuname", handlerCpuName, true },
717	{ "cpurevision", handlerCpuRevision, true },
718	{ "cpuhwvirt", handlerCpuHwVirt, true },
719	{ "nestedpaging", handlerCpuNestedPaging, true },
720	{ "longmode", handlerCpuLongMode, true },
721	{ "memsize", handlerMemSize, true },
722	{ "report", handlerReport, true },
723	{ "wipefreespace", handlerWipeFreeSpace, false }
724	};
725
726	if (argc < 2)
727	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "expected command as the first argument");
728
729	for (unsigned i = 0; i < RT_ELEMENTS(s_aHandlers); i++)
730	{
731	if (!strcmp(argv[1], s_aHandlers[i].pszCommand))
732	{
733	if ( s_aHandlers[i].fNoArgs
734	&& argc != 2)
735	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "the command '%s' does not take any arguments", argv[1]);
736	return s_aHandlers[i].pfnHandler(argc - 1, argv + 1);
737	}
738	}
739
740	/*
741	* Help or version query?
742	*/
743	for (int i = 1; i < argc; i++)
744	if ( !strcmp(argv[i], "--help")
745	\|\| !strcmp(argv[i], "-h")
746	\|\| !strcmp(argv[i], "-?")
747	\|\| !strcmp(argv[i], "help") )
748	{
749	RTPrintf("usage: %s <cmd> [cmd specific args]\n"
750	"\n"
751	"commands:\n", argv[0]);
752	for (unsigned j = 0; j < RT_ELEMENTS(s_aHandlers); j++)
753	RTPrintf(" %s\n", s_aHandlers[j].pszCommand);
754	return RTEXITCODE_FAILURE;
755	}
756	else if ( !strcmp(argv[i], "--version")
757	\|\| !strcmp(argv[i], "-V") )
758	{
759	RTPrintf("%sr%u", RTBldCfgVersion(), RTBldCfgRevision());
760	return argc == 2 ? RTEXITCODE_SUCCESS : RTEXITCODE_FAILURE;
761	}
762
763	/*
764	* Syntax error.
765	*/
766	return RTMsgErrorExit(RTEXITCODE_SYNTAX, "unknown command '%s'", argv[1]);
767	}
768

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source: vbox/trunk/src/VBox/ValidationKit/testboxscript/TestBoxHelper.cpp@ 71214

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