DevSmc.cpp@ 75593

Last change on this file since 75593 was 71776, checked in by vboxsync, 7 years ago
DevSmc: assert on I/O port registration sanity.
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1	/* $Id: DevSmc.cpp 71776 2018-04-09 14:58:05Z vboxsync $ */
2	/** @file
3	* DevSmc - Apple System Management Controller.
4	*
5	* The SMC is controlling power, fans, take measurements (voltage, temperature,
6	* fan speed, ++), and lock Mac OS X to Apple hardware. For more details see:
7	* - http://en.wikipedia.org/wiki/System_Management_Controller
8	* - http://www.parhelia.ch/blog/statics/k3_keys.html
9	* - http://www.nosuchcon.org/talks/D1_02_Alex_Ninjas_and_Harry_Potter.pdf
10	*/
11
12	/*
13	* Copyright (C) 2013-2017 Oracle Corporation
14	*
15	* This file is part of VirtualBox Open Source Edition (OSE), as
16	* available from http://www.virtualbox.org. This file is free software;
17	* you can redistribute it and/or modify it under the terms of the GNU
18	* General Public License (GPL) as published by the Free Software
19	* Foundation, in version 2 as it comes in the "COPYING" file of the
20	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
21	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
22	*/
23
24
25	/*********************************************************************************************************************************
26	* Header Files *
27	*********************************************************************************************************************************/
28	#define LOG_GROUP LOG_GROUP_DEV_SMC
29	#include <VBox/vmm/pdmdev.h>
30	#include <VBox/log.h>
31	#include <VBox/err.h>
32	#include <iprt/assert.h>
33	#include <iprt/string.h>
34	#ifdef IN_RING0
35	# include <iprt/asm-amd64-x86.h>
36	# include <iprt/once.h>
37	#endif
38	#if defined(RT_OS_DARWIN) && defined(IN_RING3)
39	# include "IOKit/IOKitLib.h"
40	#endif
41
42	#include "VBoxDD.h"
43
44
45	/*********************************************************************************************************************************
46	* Defined Constants And Macros *
47	*********************************************************************************************************************************/
48	/** The current version of the saved state. */
49	#define SMC_SAVED_STATE_VERSION 1 /** @todo later 2 */
50	/** Empty saved state version. */
51	#define SMC_SAVED_STATE_VERSION_BAKA 1
52
53	/** The ring-0 operation number that attempts to get OSK0 and OSK1 from the real
54	* SMC. */
55	#define SMC_CALLR0_READ_OSK 1
56
57
58	/** @name Apple SMC port and register definitions.
59	* @{ */
60
61	/** The first Apple SMC port. */
62	#define SMC_PORT_FIRST 0x0300
63	/** The number of registers (also ports). */
64	#define SMC_REG_COUNT 0x0020
65
66	/** The data register. */
67	#define SMC_REG_DATA 0x00
68	#define SMC_PORT_DATA (SMC_PORT_FIRST + SMC_REG_DATA)
69
70	/** The command register. */
71	#define SMC_REG_CMD 0x04
72	#define SMC_PORT_CMD (SMC_PORT_FIRST + SMC_REG_CMD)
73
74	/** Status code register. */
75	#define SMC_REG_STATUS_CODE 0x1e
76	#define SMC_PORT_STATUS_CODE (SMC_PORT_FIRST + SMC_REG_STATUS_CODE)
77	/** @} */
78
79	/** @name Apple SMC Commands.
80	* @{ */
81	#define SMC_CMD_GET_KEY_VALUE 0x10
82	#define SMC_CMD_PUT_KEY 0x11
83	#define SMC_CMD_GET_KEY_BY_INDEX 0x12
84	#define SMC_CMD_GET_KEY_INFO 0x13
85	/** @} */
86
87	/** @name Apple SMC Status Codes.
88	* @{ */
89	#define SMC_STATUS_CD_SUCCESS UINT8_C(0x00)
90	#define SMC_STATUS_CD_COMM_COLLISION UINT8_C(0x80)
91	#define SMC_STATUS_CD_SPURIOUS_DATA UINT8_C(0x81)
92	#define SMC_STATUS_CD_BAD_COMMAND UINT8_C(0x82)
93	#define SMC_STATUS_CD_BAD_PARAMETER UINT8_C(0x83)
94	#define SMC_STATUS_CD_KEY_NOT_FOUND UINT8_C(0x84)
95	#define SMC_STATUS_CD_KEY_NOT_READABLE UINT8_C(0x85)
96	#define SMC_STATUS_CD_KEY_NOT_WRITABLE UINT8_C(0x86)
97	#define SMC_STATUS_CD_KEY_SIZE_MISMATCH UINT8_C(0x87)
98	#define SMC_STATUS_CD_FRAMING_ERROR UINT8_C(0x88)
99	#define SMC_STATUS_CD_BAD_ARGUMENT_ERROR UINT8_C(0x89)
100	#define SMC_STATUS_CD_TIMEOUT_ERROR UINT8_C(0xb7)
101	#define SMC_STATUS_CD_KEY_INDEX_RANGE_ERROR UINT8_C(0xb8)
102	#define SMC_STATUS_CD_BAD_FUNC_PARAMETER UINT8_C(0xc0)
103	#define SMC_STATUS_CD_EVENT_BUFF_WRONG_ORDER UINT8_C(0x??)
104	#define SMC_STATUS_CD_EVENT_BUFF_READ_ERROR UINT8_C(0x??)
105	#define SMC_STATUS_CD_DEVICE_ACCESS_ERROR UINT8_C(0xc7)
106	#define SMC_STATUS_CD_UNSUPPORTED_FEATURE UINT8_C(0xcb)
107	#define SMC_STATUS_CD_SMB_ACCESS_ERROR UINT8_C(0xcc)
108	/** @} */
109
110	/** @name Apple SMC Key Attributes.
111	* @{ */
112	#define SMC_KEY_ATTR_PRIVATE UINT8_C(0x01)
113	#define SMC_KEY_ATTR_UKN_0x02 UINT8_C(0x02)
114	#define SMC_KEY_ATTR_UKN_0x04 UINT8_C(0x04)
115	#define SMC_KEY_ATTR_CONST UINT8_C(0x08)
116	#define SMC_KEY_ATTR_FUNCTION UINT8_C(0x10)
117	#define SMC_KEY_ATTR_UKN_0x20 UINT8_C(0x20)
118	#define SMC_KEY_ATTR_WRITE UINT8_C(0x40)
119	#define SMC_KEY_ATTR_READ UINT8_C(0x80)
120	/** @} */
121
122
123	/** The index of the first enumerable key in g_aSmcKeys. */
124	#define SMC_KEYIDX_FIRST_ENUM 2
125
126	/** Macro for emitting a static DEVSMC4CHID initializer. */
127	#define SMC4CH(a_sz4) { { a_sz4[0], a_sz4[1], a_sz4[2], a_sz4[3] } }
128
129	/**
130	* Macro for comparing DEVSMC4CHID with a string value.
131	* @returns true if equal, false if not.
132	*/
133	#define SMC4CH_EQ(a_pSmcKey, a_sz4) ( (a_pSmcKey)->u32 == RT_MAKE_U32_FROM_U8(a_sz4[0], a_sz4[1], a_sz4[2], a_sz4[3]) )
134
135	/** Indicates the we want a 2.x SMC. */
136	#define VBOX_WITH_SMC_2_x
137
138
139	/*********************************************************************************************************************************
140	* Structures and Typedefs *
141	*********************************************************************************************************************************/
142
143	/**
144	* 4 char identifier
145	*/
146	typedef union DEVSMC4CHID
147	{
148	/** Byte view. */
149	uint8_t ab[4];
150	/** 32-bit unsigned integer view. */
151	uint32_t u32;
152	} DEVSMC4CHID;
153
154
155	/**
156	* Current key data area for communicating with the guest.
157	*/
158	typedef struct DEVSMCCURKEY
159	{
160	/** The key. */
161	DEVSMC4CHID Key;
162	/** The data type. */
163	DEVSMC4CHID Type;
164	/** Key attributes. */
165	uint8_t fAttr;
166	/** The value length. */
167	uint8_t cbValue;
168	uint8_t abAlignment[2];
169	/**
170	* The value union. 32 bytes is probably sufficient here, but we provide a
171	* little more room since it doesn't cost us anything. */
172	union
173	{
174	/** Byte view. */
175	uint8_t ab[128];
176	/** 16-bit view. */
177	uint16_t u16;
178	/** 32-bit view. */
179	uint32_t u32;
180	} Value;
181	} DEVSMCCURKEY;
182	AssertCompileSize(DEVSMCCURKEY, 128+12);
183	/** Pointer to the current key buffer. */
184	typedef DEVSMCCURKEY *PDEVSMCCURKEY;
185	/** Const pointer to the current key buffer. */
186	typedef DEVSMCCURKEY const *PCDEVSMCCURKEY;
187
188
189	/**
190	* The device
191	*/
192	typedef struct DEVSMC
193	{
194	/** The current command (SMC_PORT_CMD write). */
195	uint8_t bCmd;
196	/** Current key offset. */
197	uint8_t offKey;
198	/** Current value offset. */
199	uint8_t offValue;
200	/** Number of keys in the aKeys array. */
201	uint8_t cKeys;
202
203	/** The current key data the user is accessing. */
204	DEVSMCCURKEY CurKey;
205
206	/**
207	* Generic read/write register values.
208	*
209	* The DATA register entry is not used at all. The CMD register entry contains
210	* the state value.
211	*/
212	union
213	{
214	/** Index register view. */
215	uint8_t abRegsRW[SMC_REG_COUNT];
216	/** Named register view. */
217	struct
218	{
219	uint8_t abUnknown0[0x04];
220	/** The current state (SMC_PORT_CMD read). */
221	uint8_t bState;
222	uint8_t abUnknown1[0x1e - 0x05];
223	/** The current status code (SMC_PORT_STATUS_CODE). */
224	uint8_t bStatusCode;
225	uint8_t abUnknown2[1];
226	} s;
227	} u;
228
229	/** @name Key data.
230	* @{ */
231	/** OSK0 and OSK1. */
232	char szOsk0And1[64+1];
233	/** $Num - unknown function. */
234	uint8_t bDollaryNumber;
235	/** MSSD - shutdown reason. */
236	uint8_t bShutdownReason;
237	/** NATJ - Ninja action timer job. */
238	uint8_t bNinjaActionTimerJob;
239	/** @} */
240	} DEVSMC;
241	#ifndef _MSC_VER
242	AssertCompileMembersAtSameOffset(DEVSMC, u.abRegsRW[SMC_REG_CMD], DEVSMC, u.s.bState);
243	AssertCompileMembersAtSameOffset(DEVSMC, u.abRegsRW[SMC_REG_STATUS_CODE], DEVSMC, u.s.bStatusCode);
244	#endif
245
246	/** Pointer to the SMC state. */
247	typedef DEVSMC *PDEVSMC;
248
249	#ifndef VBOX_DEVICE_STRUCT_TESTCASE
250
251
252	/**
253	* Method for retriving the key value and/or optionally also attributes.
254	*
255	* @returns Apple SMC Status Code.
256	* @param pThis The SMC instance data.
257	* @param pCurKey The current key structure (input / output).
258	* @param bCmd The current command (mostly for getters that also
259	* provides attributes or type info).
260	* @param pKeyDesc Pointer to the key descriptor so that the getter can
261	* service more than once key.
262	*/
263	typedef DECLCALLBACK(uint8_t) DEVSMCKEYGETTER(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd,
264	struct DEVSMCKEYDESC const *pKeyDesc);
265
266	/**
267	* Method for setting the key value.
268	*
269	* @returns Apple SMC Status Code.
270	* @param pThis The SMC instance data.
271	* @param pCurKey The current key structure (input / output).
272	* @param bCmd The current command (currently not relevant).
273	* @param pKeyDesc Pointer to the key descriptor so that the getter can
274	* service more than once key.
275	*/
276	typedef DECLCALLBACK(uint8_t) DEVSMCKEYPUTTER(PDEVSMC pThis, PCDEVSMCCURKEY pCurKey, uint8_t bCmd,
277	struct DEVSMCKEYDESC const *pKeyDesc);
278
279	/**
280	* Key descriptor.
281	*/
282	typedef struct DEVSMCKEYDESC
283	{
284	/** The key 4 character identifier. */
285	DEVSMC4CHID Key;
286	/** Type 4 character identifier. 0 means the getter will set it dynamically. */
287	DEVSMC4CHID Type;
288	/** Getter method, see DEVSMCKEYPUTTER. */
289	DEVSMCKEYGETTER *pfnGet;
290	/** Putter method, see DEVSMCKEYPUTTER. */
291	DEVSMCKEYPUTTER *pfnPut;
292	/** The keyvalue size. If 0 the pfnGet/pfnPut will define/check the size. */
293	uint8_t cbValue;
294	/** Attributes. 0 means the getter will set it dynamically. */
295	uint8_t fAttr;
296	} DEVSMCKEYDESC;
297	/** Pointer to a constant SMC key descriptor. */
298	typedef DEVSMCKEYDESC const *PCDEVSMCKEYDESC;
299
300
301	/*********************************************************************************************************************************
302	* Internal Functions *
303	*********************************************************************************************************************************/
304	#ifdef IN_RING3
305	static DEVSMCKEYGETTER scmKeyGetOSKs;
306	static DEVSMCKEYGETTER scmKeyGetKeyCount;
307	static DEVSMCKEYGETTER scmKeyGetRevision;
308	# ifdef VBOX_WITH_SMC_2_x
309	static DEVSMCKEYGETTER scmKeyGetDollarAddress;
310	static DEVSMCKEYGETTER scmKeyGetDollarNumber;
311	static DEVSMCKEYPUTTER scmKeyPutDollarNumber;
312	# endif
313	static DEVSMCKEYGETTER scmKeyGetShutdownReason;
314	static DEVSMCKEYPUTTER scmKeyPutShutdownReason;
315	static DEVSMCKEYGETTER scmKeyGetNinjaTimerAction;
316	static DEVSMCKEYPUTTER scmKeyPutNinjaTimerAction;
317	static DEVSMCKEYGETTER scmKeyGetOne;
318	static DEVSMCKEYGETTER scmKeyGetZero;
319	#endif
320
321
322	/*********************************************************************************************************************************
323	* Global Variables *
324	*********************************************************************************************************************************/
325	#ifdef IN_RING3
326	/**
327	* Apple SMC key descriptor table.
328	*/
329	static const DEVSMCKEYDESC g_aSmcKeys[] =
330	{
331	/* Non-enum keys first. */
332	{ SMC4CH("OSK0"), SMC4CH("ch8*"), scmKeyGetOSKs, NULL, 32, SMC_KEY_ATTR_READ \| SMC_KEY_ATTR_FUNCTION },
333	{ SMC4CH("OSK1"), SMC4CH("ch8*"), scmKeyGetOSKs, NULL, 32, SMC_KEY_ATTR_READ \| SMC_KEY_ATTR_FUNCTION },
334
335	/* The first enum key is the #KEY value. */
336	{ SMC4CH("#KEY"), SMC4CH("ui32"), scmKeyGetKeyCount, NULL, 4, SMC_KEY_ATTR_READ },
337	# ifdef VBOX_WITH_SMC_2_x
338	{ SMC4CH("$Adr"), SMC4CH("ui32"), scmKeyGetDollarAddress, NULL, 4, SMC_KEY_ATTR_READ },
339	{ SMC4CH("$Num"), SMC4CH("ui8 "), scmKeyGetDollarNumber, scmKeyPutDollarNumber, 1, SMC_KEY_ATTR_READ \| SMC_KEY_ATTR_WRITE \| SMC_KEY_ATTR_PRIVATE },
340	{ SMC4CH("BEMB"), SMC4CH("flag"), scmKeyGetOne, NULL, 1, SMC_KEY_ATTR_READ },
341	# else
342	{ SMC4CH("LSOF"), SMC4CH("flag"), scmKeyGetZero, NULL, 1, SMC_KEY_ATTR_READ },
343	# endif
344	{ SMC4CH("MSSD"), SMC4CH("si8 "), scmKeyGetShutdownReason, scmKeyPutShutdownReason, 1, SMC_KEY_ATTR_READ \| SMC_KEY_ATTR_WRITE \| SMC_KEY_ATTR_PRIVATE },
345	/* MSDS is not present on MacPro3,1 nor MacBookPro10,1, so returning not found is fine. */
346	# ifdef VBOX_WITH_SMC_2_x
347	{ SMC4CH("MSTf"), SMC4CH("ui8 "), scmKeyGetZero, NULL, 1, SMC_KEY_ATTR_READ },
348	# endif
349	{ SMC4CH("NATJ"), SMC4CH("ui8 "), scmKeyGetNinjaTimerAction, scmKeyPutNinjaTimerAction, 1, SMC_KEY_ATTR_READ \| SMC_KEY_ATTR_WRITE \| SMC_KEY_ATTR_PRIVATE },
350	{ SMC4CH("REV "), SMC4CH("{rev"), scmKeyGetRevision, NULL, 6, SMC_KEY_ATTR_READ },
351	/** @todo MSSP, NTOK and more. */
352	};
353	#endif
354
355	#ifdef IN_RING0
356	/** Do once for the SMC ring-0 static data (g_abOsk0And1, g_fHaveOsk). */
357	static RTONCE g_SmcR0Once = RTONCE_INITIALIZER;
358	/** Indicates whether we've successfully queried the OSK* keys. */
359	static bool g_fHaveOsk = false;
360	/** The OSK0 and OSK1 values. */
361	static uint8_t g_abOsk0And1[32+32];
362
363
364	/**
365	* Waits for the specified state on the host SMC.
366	*
367	* @returns success indicator.
368	* @param bState The desired state.
369	* @param pszWhat What we're currently doing. For the log.
370	*/
371	static bool devR0SmcWaitHostState(uint8_t bState, const char *pszWhat)
372	{
373	uint8_t bCurState = 0; /* (MSC is potentially uninitialized) */
374	for (uint32_t cMsSleep = 1; cMsSleep <= 64; cMsSleep <<= 1)
375	{
376	RTThreadSleep(cMsSleep);
377	bCurState = ASMInU16(SMC_PORT_CMD);
378	if ((bCurState & 0xf) == bState)
379	return true;
380	}
381
382	LogRel(("devR0Smc: %s: bCurState=%#x, wanted %#x.\n", pszWhat, bCurState, bState));
383	#if 0
384	uint8_t bCurStatus2 = ASMInU8(SMC_PORT_STATUS_CODE);
385	uint8_t bCurStatus3 = ASMInU8(SMC_PORT_STATUS_CODE);
386	uint16_t wCurStatus3 = ASMInU16(SMC_PORT_STATUS_CODE);
387	uint32_t dwCurStatus3 = ASMInU32(SMC_PORT_STATUS_CODE);
388	LogRel(("SMC: status2=%#x status3=%#x w=%#x dw=%#x\n", bCurStatus2, bCurStatus3, wCurStatus3, dwCurStatus3));
389	#endif
390	return false;
391	}
392
393
394	/**
395	* Reads a key by name from the host SMC.
396	*
397	* @returns success indicator.
398	* @param pszName The key name, must be exactly 4 chars long.
399	* @param pbBuf The output buffer.
400	* @param cbBuf The buffer size. Max 32 bytes.
401	*/
402	static bool devR0SmcQueryHostKey(const char pszName, uint8_t pbBuf, size_t cbBuf)
403	{
404	Assert(strlen(pszName) == 4);
405	Assert(cbBuf <= 32);
406	Assert(cbBuf > 0);
407
408	/*
409	* Issue the READ command.
410	*/
411	uint32_t cMsSleep = 1;
412	for (;;)
413	{
414	ASMOutU32(SMC_PORT_CMD, SMC_CMD_GET_KEY_VALUE);
415	RTThreadSleep(cMsSleep);
416	uint8_t bCurState = ASMInU8(SMC_PORT_CMD);
417	if ((bCurState & 0xf) == 0xc)
418	break;
419	cMsSleep <<= 1;
420	if (cMsSleep > 64)
421	{
422	LogRel(("devR0Smc: %s: bCurState=%#x, wanted %#x.\n", "cmd", bCurState, 0xc));
423	return false;
424	}
425	}
426
427	/*
428	* Send it the key.
429	*/
430	for (unsigned off = 0; off < 4; off++)
431	{
432	ASMOutU8(SMC_PORT_DATA, pszName[off]);
433	if (!devR0SmcWaitHostState(4, "key"))
434	return false;
435	}
436
437	/*
438	* The desired amount of output.
439	*/
440	ASMOutU8(SMC_PORT_DATA, (uint8_t)cbBuf);
441
442	/*
443	* Read the output.
444	*/
445	for (size_t off = 0; off < cbBuf; off++)
446	{
447	if (!devR0SmcWaitHostState(5, off ? "data" : "len"))
448	return false;
449	pbBuf[off] = ASMInU8(SMC_PORT_DATA);
450	}
451
452	LogRel(("SMC: pbBuf=%.*s\n", cbBuf, pbBuf));
453	return true;
454	}
455
456
457	/**
458	* RTOnce callback that initializes g_fHaveOsk and g_abOsk0And1.
459	*
460	* @returns VINF_SUCCESS.
461	* @param pvUserIgnored Ignored.
462	*/
463	static DECLCALLBACK(int) devR0SmcInitOnce(void *pvUserIgnored)
464	{
465	g_fHaveOsk = devR0SmcQueryHostKey("OSK0", &g_abOsk0And1[0], 32)
466	&& devR0SmcQueryHostKey("OSK1", &g_abOsk0And1[32], 32);
467
468	#if 0
469	/*
470	* Dump the device registers.
471	*/
472	for (uint16_t uPort = 0x300; uPort < 0x320; uPort ++)
473	LogRel(("SMC: %#06x=%#010x w={%#06x, %#06x}, b={%#04x %#04x %#04x %#04x}\n", uPort,
474	ASMInU32(uPort), ASMInU16(uPort), ASMInU16(uPort + 2),
475	ASMInU8(uPort), ASMInU8(uPort + 1), ASMInU8(uPort +2), ASMInU8(uPort + 3) ));
476	#endif
477
478	NOREF(pvUserIgnored);
479	return VINF_SUCCESS;
480	}
481
482
483	/**
484	* @callback_method_impl{FNPDMDEVREQHANDLERR0}
485	*/
486	PDMBOTHCBDECL(int) devR0SmcReqHandler(PPDMDEVINS pDevIns, uint32_t uOperation, uint64_t u64Arg)
487	{
488	PDEVSMC pThis = PDMINS_2_DATA(pDevIns, PDEVSMC);
489	int rc = VERR_INVALID_FUNCTION;
490	RT_NOREF_PV(u64Arg);
491
492	if (uOperation == SMC_CALLR0_READ_OSK)
493	{
494	rc = RTOnce(&g_SmcR0Once, devR0SmcInitOnce, NULL);
495	if ( RT_SUCCESS(rc)
496	&& g_fHaveOsk)
497	{
498	AssertCompile(sizeof(g_abOsk0And1) + 1 == sizeof(pThis->szOsk0And1));
499	memcpy(pThis->szOsk0And1, g_abOsk0And1, sizeof(pThis->szOsk0And1) - 1);
500	pThis->szOsk0And1[sizeof(pThis->szOsk0And1) - 1] = '\0';
501	}
502	}
503	return rc;
504	}
505
506	#endif /* IN_RING0 */
507
508	#if defined(IN_RING3) && defined(RT_OS_DARWIN)
509
510	/**
511	* Preferred method to retrieve the SMC key.
512	*
513	* @param pabKey where to store the key.
514	* @param cbKey size of the buffer.
515	*/
516	static int getSmcKeyOs(char *pabKey, uint32_t cbKey)
517	{
518	/*
519	* Method as described in Amit Singh's article:
520	* http://osxbook.com/book/bonus/chapter7/tpmdrmmyth/
521	*/
522	typedef struct
523	{
524	uint32_t key;
525	uint8_t pad0[22];
526	uint32_t datasize;
527	uint8_t pad1[10];
528	uint8_t cmd;
529	uint32_t pad2;
530	uint8_t data[32];
531	} AppleSMCBuffer;
532
533	AssertReturn(cbKey >= 65, VERR_INTERNAL_ERROR);
534
535	io_service_t service = IOServiceGetMatchingService(kIOMasterPortDefault,
536	IOServiceMatching("AppleSMC"));
537	if (!service)
538	return VERR_NOT_FOUND;
539
540	io_connect_t port = (io_connect_t)0;
541	kern_return_t kr = IOServiceOpen(service, mach_task_self(), 0, &port);
542	IOObjectRelease(service);
543
544	if (kr != kIOReturnSuccess)
545	return RTErrConvertFromDarwin(kr);
546
547	AppleSMCBuffer inputStruct = { 0, {0}, 32, {0}, 5, };
548	AppleSMCBuffer outputStruct;
549	size_t cbOutputStruct = sizeof(outputStruct);
550
551	for (int i = 0; i < 2; i++)
552	{
553	inputStruct.key = (uint32_t)(i == 0 ? 'OSK0' : 'OSK1');
554	kr = IOConnectCallStructMethod((mach_port_t)port,
555	(uint32_t)2,
556	(const void *)&inputStruct,
557	sizeof(inputStruct),
558	(void *)&outputStruct,
559	&cbOutputStruct);
560	if (kr != kIOReturnSuccess)
561	{
562	IOServiceClose(port);
563	return RTErrConvertFromDarwin(kr);
564	}
565
566	for (int j = 0; j < 32; j++)
567	pabKey[j + i*32] = outputStruct.data[j];
568	}
569
570	IOServiceClose(port);
571
572	pabKey[64] = 0;
573
574	return VINF_SUCCESS;
575	}
576
577	#endif /* IN_RING3 && RT_OS_DARWIN */
578
579	#ifdef IN_RING3 /* For now. */
580
581	/** @callback_method_impl{DEVSMCKEYGETTER, OSK0 and OSK1} */
582	static uint8_t scmKeyGetOSKs(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
583	{
584	RT_NOREF1(bCmd);
585	Assert(SMC4CH_EQ(&pKeyDesc->Key, "OSK0") \|\| SMC4CH_EQ(&pKeyDesc->Key, "OSK1"));
586	const char *pszSrc = pThis->szOsk0And1;
587	if (SMC4CH_EQ(&pKeyDesc->Key, "OSK1"))
588	pszSrc += 32;
589	memcpy(pCurKey->Value.ab, pszSrc, 32);
590	return SMC_STATUS_CD_SUCCESS;
591	}
592
593
594	/** @callback_method_impl{DEVSMCKEYGETTER, \#KEY} */
595	static uint8_t scmKeyGetKeyCount(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
596	{
597	RT_NOREF3(pThis, bCmd, pKeyDesc);
598	Assert(pKeyDesc == &g_aSmcKeys[SMC_KEYIDX_FIRST_ENUM]);
599	uint32_t cKeys = RT_ELEMENTS(g_aSmcKeys) - SMC_KEYIDX_FIRST_ENUM;
600	pCurKey->Value.u32 = RT_H2BE_U32(cKeys);
601	return SMC_STATUS_CD_SUCCESS;
602	}
603
604
605	/** @callback_method_impl{DEVSMCKEYGETTER, REV - Source revision.} */
606	static uint8_t scmKeyGetRevision(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
607	{
608	RT_NOREF3(pThis, bCmd, pKeyDesc);
609	#ifdef VBOX_WITH_SMC_2_x
610	pCurKey->Value.ab[0] = 0x02;
611	pCurKey->Value.ab[1] = 0x03;
612	pCurKey->Value.ab[2] = 0x0f;
613	pCurKey->Value.ab[3] = 0x00;
614	pCurKey->Value.ab[4] = 0x00;
615	pCurKey->Value.ab[5] = 0x35;
616	#else
617	pCurKey->Value.ab[0] = 0x01;
618	pCurKey->Value.ab[1] = 0x25;
619	pCurKey->Value.ab[2] = 0x0f;
620	pCurKey->Value.ab[3] = 0x00;
621	pCurKey->Value.ab[4] = 0x00;
622	pCurKey->Value.ab[5] = 0x04;
623	#endif
624	return SMC_STATUS_CD_SUCCESS;
625	}
626
627	#ifdef VBOX_WITH_SMC_2_x
628
629	/** @callback_method_impl{DEVSMCKEYGETTER, $Adr - SMC address.} */
630	static uint8_t scmKeyGetDollarAddress(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
631	{
632	RT_NOREF3(pThis, bCmd, pKeyDesc);
633	pCurKey->Value.u32 = RT_H2BE_U32(SMC_PORT_FIRST);
634	return VINF_SUCCESS;
635	}
636
637
638	/** @callback_method_impl{DEVSMCKEYGETTER, $Num - Some kind of number.} */
639	static uint8_t scmKeyGetDollarNumber(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
640	{
641	RT_NOREF2(bCmd, pKeyDesc);
642	pCurKey->Value.ab[0] = pThis->bDollaryNumber;
643	return VINF_SUCCESS;
644	}
645
646	/** @callback_method_impl{DEVSMCKEYPUTTER, $Num - Some kind of number.} */
647	static uint8_t scmKeyPutDollarNumber(PDEVSMC pThis, PCDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
648	{
649	RT_NOREF2(bCmd, pKeyDesc);
650	Log(("scmKeyPutDollarNumber: %#x -> %#x\n", pThis->bDollaryNumber, pCurKey->Value.ab[0]));
651	pThis->bDollaryNumber = pCurKey->Value.ab[0];
652	return VINF_SUCCESS;
653	}
654
655	#endif /* VBOX_WITH_SMC_2_x */
656
657	/** @callback_method_impl{DEVSMCKEYGETTER, MSSD - Machine Shutdown reason.} */
658	static uint8_t scmKeyGetShutdownReason(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
659	{
660	RT_NOREF2(bCmd, pKeyDesc);
661	pCurKey->Value.ab[0] = pThis->bShutdownReason;
662	return SMC_STATUS_CD_SUCCESS;
663	}
664
665
666	/** @callback_method_impl{DEVSMCKEYPUTTER, MSSD - Machine Shutdown reason.} */
667	static uint8_t scmKeyPutShutdownReason(PDEVSMC pThis, PCDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
668	{
669	RT_NOREF2(bCmd, pKeyDesc);
670	Log(("scmKeyPutShutdownReason: %#x -> %#x\n", pThis->bShutdownReason, pCurKey->Value.ab[0]));
671	pThis->bShutdownReason = pCurKey->Value.ab[0];
672	return SMC_STATUS_CD_SUCCESS;
673	}
674
675
676	/** @callback_method_impl{DEVSMCKEYGETTER, MSSD - Ninja timer action job.} */
677	static uint8_t scmKeyGetNinjaTimerAction(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
678	{
679	RT_NOREF2(bCmd, pKeyDesc);
680	pCurKey->Value.ab[0] = pThis->bNinjaActionTimerJob;
681	return SMC_STATUS_CD_SUCCESS;
682	}
683
684
685	/** @callback_method_impl{DEVSMCKEYPUTTER, NATJ - Ninja timer action job.} */
686	static uint8_t scmKeyPutNinjaTimerAction(PDEVSMC pThis, PCDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
687	{
688	RT_NOREF2(bCmd, pKeyDesc);
689	Log(("scmKeyPutNinjaTimerAction: %#x -> %#x\n", pThis->bNinjaActionTimerJob, pCurKey->Value.ab[0]));
690	pThis->bNinjaActionTimerJob = pCurKey->Value.ab[0];
691	return SMC_STATUS_CD_SUCCESS;
692	}
693
694	#ifdef VBOX_WITH_SMC_2_x
695
696	/** @callback_method_impl{DEVSMCKEYGETTER, Generic one getter.} */
697	static uint8_t scmKeyGetOne(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
698	{
699	RT_NOREF2(pThis, bCmd);
700	memset(&pCurKey->Value.ab[0], 0, pKeyDesc->cbValue);
701	pCurKey->Value.ab[pKeyDesc->cbValue - 1] = 1;
702	return SMC_STATUS_CD_SUCCESS;
703	}
704
705	#endif /* VBOX_WITH_SMC_2_x */
706
707	/** @callback_method_impl{DEVSMCKEYGETTER, Generic zero getter.} */
708	static uint8_t scmKeyGetZero(PDEVSMC pThis, PDEVSMCCURKEY pCurKey, uint8_t bCmd, PCDEVSMCKEYDESC pKeyDesc)
709	{
710	RT_NOREF2(pThis, bCmd);
711	memset(&pCurKey->Value.ab[0], 0, pKeyDesc->cbValue);
712	return SMC_STATUS_CD_SUCCESS;
713	}
714
715
716	/**
717	* Looks up a key and copies its value and attributes into the CurKey.
718	*
719	* @returns Key index on success, UINT32_MAX on failure.
720	* @param uKeyValue The key value (DEVSMC4CHID.u32).
721	*/
722	static uint32_t smcKeyLookup(uint32_t uKeyValue)
723	{
724	uint32_t iKey = RT_ELEMENTS(g_aSmcKeys);
725	while (iKey-- > 0)
726	if (g_aSmcKeys[iKey].Key.u32 == uKeyValue)
727	return iKey;
728	return UINT32_MAX;
729	}
730
731
732	/**
733	* Looks up a key and copies its value and attributes into the CurKey.
734	*
735	* @returns Apple SMC Status Code.
736	* @param pThis The SMC instance data.
737	*/
738	static uint8_t smcKeyGetByName(PDEVSMC pThis)
739	{
740	uint8_t bRc;
741	#ifdef LOG_ENABLED
742	uint32_t const uKeyValueLog = RT_H2LE_U32(pThis->CurKey.Key.u32);
743	#endif
744	uint32_t iKey = smcKeyLookup(pThis->CurKey.Key.u32);
745	if (iKey != UINT32_MAX)
746	{
747	if ( g_aSmcKeys[iKey].cbValue == pThis->CurKey.cbValue
748	\|\| !g_aSmcKeys[iKey].cbValue)
749	{
750	pThis->CurKey.Type = g_aSmcKeys[iKey].Type;
751	pThis->CurKey.fAttr = g_aSmcKeys[iKey].fAttr;
752	RT_ZERO(pThis->CurKey.Value);
753	if (g_aSmcKeys[iKey].pfnGet)
754	{
755	bRc = g_aSmcKeys[iKey].pfnGet(pThis, &pThis->CurKey, pThis->bCmd, &g_aSmcKeys[iKey]);
756	if (bRc == SMC_STATUS_CD_SUCCESS)
757	{
758	LogFlow(("smcKeyGetByName: key=%4.4s value=%.*Rhxs\n",
759	&uKeyValueLog, pThis->CurKey.cbValue, &pThis->CurKey.Value));
760	return SMC_STATUS_CD_SUCCESS;
761	}
762
763	Log(("smcKeyGetByName: key=%4.4s getter failed! bRc=%#x\n", &uKeyValueLog, bRc));
764	}
765	else
766	{
767	Log(("smcKeyGetByName: key=%4.4s is not readable!\n", &uKeyValueLog));
768	bRc = SMC_STATUS_CD_KEY_NOT_READABLE;
769	}
770	}
771	else
772	{
773	Log(("smcKeyGetByName: Wrong value size; user=%#x smc=%#x key=%4.4s !\n",
774	pThis->CurKey.cbValue, g_aSmcKeys[iKey].cbValue, &uKeyValueLog));
775	bRc = SMC_STATUS_CD_KEY_SIZE_MISMATCH;
776	}
777	}
778	else
779	{
780	Log(("smcKeyGetByName: Key not found! key=%4.4s size=%#x\n", &uKeyValueLog, pThis->CurKey.cbValue));
781	bRc = SMC_STATUS_CD_KEY_NOT_FOUND;
782	}
783
784	RT_ZERO(pThis->CurKey);
785	return bRc;
786	}
787
788
789	/**
790	* Looks up a key by index and copies its name (and attributes) into the CurKey.
791	*
792	* @returns Apple SMC Status Code.
793	* @param pThis The SMC instance data.
794	*/
795	static uint8_t smcKeyGetByIndex(PDEVSMC pThis)
796	{
797	uint8_t bRc;
798	uint32_t iKey = RT_BE2H_U32(pThis->CurKey.Key.u32);
799	if (iKey < RT_ELEMENTS(g_aSmcKeys) - SMC_KEYIDX_FIRST_ENUM)
800	{
801	pThis->CurKey.Key = g_aSmcKeys[iKey].Key;
802	pThis->CurKey.Type = g_aSmcKeys[iKey].Type;
803	pThis->CurKey.fAttr = g_aSmcKeys[iKey].fAttr;
804	pThis->CurKey.cbValue = g_aSmcKeys[iKey].cbValue;
805	RT_ZERO(pThis->CurKey.Value);
806	Log(("smcKeyGetByIndex: %#x -> %c%c%c%c\n", iKey,
807	pThis->CurKey.Key.ab[3], pThis->CurKey.Key.ab[2], pThis->CurKey.Key.ab[1], pThis->CurKey.Key.ab[0]));
808	bRc = SMC_STATUS_CD_SUCCESS;
809	}
810	else
811	{
812	Log(("smcKeyGetByIndex: Key out or range: %#x, max %#x\n", iKey, RT_ELEMENTS(g_aSmcKeys) - SMC_KEYIDX_FIRST_ENUM));
813	bRc = SMC_STATUS_CD_KEY_NOT_FOUND;
814	}
815	return bRc;
816	}
817
818
819	/**
820	* Looks up a key by index and copies its attributes into the CurKey.
821	*
822	* @returns Apple SMC Status Code.
823	* @param pThis The SMC instance data.
824	*/
825	static uint8_t smcKeyGetAttrByName(PDEVSMC pThis)
826	{
827	uint8_t bRc;
828	#ifdef LOG_ENABLED
829	uint32_t const uKeyValueLog = RT_H2LE_U32(pThis->CurKey.Key.u32);
830	#endif
831	uint32_t iKey = smcKeyLookup(pThis->CurKey.Key.u32);
832	if (iKey != UINT32_MAX)
833	{
834	pThis->CurKey.Type = g_aSmcKeys[iKey].Type;
835	pThis->CurKey.fAttr = g_aSmcKeys[iKey].fAttr;
836	pThis->CurKey.cbValue = g_aSmcKeys[iKey].cbValue;
837	RT_ZERO(pThis->CurKey.Value);
838	if (g_aSmcKeys[iKey].cbValue)
839	bRc = SMC_STATUS_CD_SUCCESS;
840	else
841	bRc = g_aSmcKeys[iKey].pfnGet(pThis, &pThis->CurKey, pThis->bCmd, &g_aSmcKeys[iKey]);
842	if (bRc == SMC_STATUS_CD_SUCCESS)
843	{
844	LogFlow(("smcKeyGetAttrByName: key=%4.4s value=%.*Rhxs\n",
845	&uKeyValueLog, pThis->CurKey.cbValue, &pThis->CurKey.Value));
846	return SMC_STATUS_CD_SUCCESS;
847	}
848
849	Log(("smcKeyGetAttrByName: key=%4.4s getter failed! bRc=%#x\n", &uKeyValueLog, bRc));
850	}
851	else
852	{
853	Log(("smcKeyGetAttrByName: Key not found! key=%4.4s size=%#x\n", &uKeyValueLog, pThis->CurKey.cbValue));
854	bRc = SMC_STATUS_CD_KEY_NOT_FOUND;
855	}
856
857	RT_ZERO(pThis->CurKey);
858	return bRc;
859	}
860
861
862	static uint8_t smcKeyPutPrepare(PDEVSMC pThis)
863	{
864	RT_NOREF1(pThis);
865	return 0;
866	}
867
868	static uint8_t smcKeyPutValue(PDEVSMC pThis)
869	{
870	RT_NOREF1(pThis);
871	return 0;
872	}
873
874
875	/**
876	* Data register read.
877	*
878	* @returns VINF_SUCCESS or VINF_IOM_R3_IOPORT_WRITE.
879	* @param uReg The register number.
880	* @param pbValue Where to return the value.
881	*/
882	static int smcRegData_r(PDEVSMC pThis, uint8_t uReg, uint8_t *pbValue)
883	{
884	RT_NOREF1(uReg);
885	switch (pThis->bCmd)
886	{
887	case SMC_CMD_GET_KEY_VALUE:
888	if ( pThis->u.s.bState == 0x05
889	&& pThis->offValue < pThis->CurKey.cbValue)
890	{
891	*pbValue = pThis->CurKey.Value.ab[pThis->offValue];
892	if (++pThis->offValue >= pThis->CurKey.cbValue)
893	pThis->u.s.bState = 0x00;
894	pThis->u.s.bStatusCode = SMC_STATUS_CD_SUCCESS;
895	}
896	else
897	{
898	Log(("smcRegData_r: Reading too much or at wrong time during SMC_CMD_GET_KEY_INFO! bState=%#x offValue=%#x\n",
899	pThis->u.s.bState, pThis->offValue));
900	pThis->u.s.bState = 0x00;
901	pThis->u.s.bStatusCode = SMC_STATUS_CD_SPURIOUS_DATA; /** @todo check status code */
902	}
903	break;
904
905	case SMC_CMD_GET_KEY_INFO:
906	if ( pThis->u.s.bState == 0x05
907	&& pThis->offValue < 6)
908	{
909	if (pThis->offValue == 0)
910	*pbValue = pThis->CurKey.cbValue;
911	else if (pThis->offValue < 1 + 4)
912	*pbValue = pThis->CurKey.Type.ab[pThis->offValue - 1];
913	else
914	*pbValue = pThis->CurKey.fAttr;
915	if (++pThis->offValue >= 6)
916	pThis->u.s.bState = 0x00;
917	pThis->u.s.bStatusCode = SMC_STATUS_CD_SUCCESS;
918	}
919	else
920	{
921	Log(("smcRegData_r: Reading too much or at wrong time during SMC_CMD_GET_KEY_INFO! bState=%#x offValue=%#x\n",
922	pThis->u.s.bState, pThis->offValue));
923	pThis->u.s.bState = 0x00;
924	pThis->u.s.bStatusCode = SMC_STATUS_CD_SPURIOUS_DATA; /** @todo check status code */
925	}
926	break;
927
928	case SMC_CMD_GET_KEY_BY_INDEX:
929	if ( pThis->u.s.bState == 0x05
930	&& pThis->offValue < sizeof(pThis->CurKey.Key))
931	{
932	*pbValue = pThis->CurKey.Key.ab[pThis->offValue];
933	if (++pThis->offValue >= sizeof(pThis->CurKey.Key))
934	pThis->u.s.bState = 0x00;
935	pThis->u.s.bStatusCode = SMC_STATUS_CD_SUCCESS;
936	}
937	else
938	{
939	Log(("smcRegData_r: Reading too much or at wrong time during GET_KEY_BY_INDEX! bState=%#x offValue=%#x\n",
940	pThis->u.s.bState, pThis->offValue));
941	pThis->u.s.bState = 0x00;
942	pThis->u.s.bStatusCode = SMC_STATUS_CD_SPURIOUS_DATA; /** @todo check status code */
943	}
944	break;
945
946	case SMC_CMD_PUT_KEY:
947	Log(("smcRegData_r: Attempting to read data during PUT_KEY!\n"));
948	*pbValue = 0xff;
949	pThis->u.s.bState = 0;
950	pThis->u.s.bStatusCode = SMC_STATUS_CD_SPURIOUS_DATA;
951	break;
952
953	default:
954	Log(("smcRegData_r: Unknown command attempts reading data\n"));
955	*pbValue = 0xff;
956	pThis->u.s.bState = 0;
957	pThis->u.s.bStatusCode = SMC_STATUS_CD_SPURIOUS_DATA;
958	break;
959	}
960
961	return VINF_SUCCESS;
962	}
963
964
965	/**
966	* Data register write.
967	*
968	* @returns VINF_SUCCESS or VINF_IOM_R3_IOPORT_WRITE.
969	* @param uReg The register number.
970	* @param bValue The value being written.
971	*/
972	static int smcRegData_w(PDEVSMC pThis, uint8_t uReg, uint8_t bValue)
973	{
974	RT_NOREF1(uReg);
975	switch (pThis->bCmd)
976	{
977	/*
978	* Get or put key value.
979	*
980	* 5 bytes written, first 4 is the key the 5th is the value size. In
981	* the case of a put the value bytes are then written, while a get will
982	* read the value bytes.
983	*/
984	case SMC_CMD_GET_KEY_VALUE:
985	case SMC_CMD_PUT_KEY:
986	if (pThis->offKey < 4)
987	{
988	/* Key byte. */
989	pThis->CurKey.Key.ab[pThis->offKey++] = bValue;
990	pThis->u.s.bState = 0x04;
991	pThis->u.s.bStatusCode = SMC_STATUS_CD_SUCCESS;
992	}
993	else if (pThis->offKey == 4)
994	{
995	/* Data length. */
996	pThis->u.s.bState = 0;
997	if (bValue <= sizeof(pThis->CurKey.Value))
998	{
999	pThis->CurKey.cbValue = bValue;
1000	pThis->offKey = 5;
1001	Assert(pThis->offValue == 0);
1002
1003	if (pThis->bCmd == SMC_CMD_GET_KEY_VALUE)
1004	pThis->u.s.bStatusCode = smcKeyGetByName(pThis);
1005	else
1006	pThis->u.s.bStatusCode = smcKeyPutPrepare(pThis);
1007	if (pThis->u.s.bStatusCode == SMC_STATUS_CD_SUCCESS)
1008	pThis->u.s.bState = 0x05;
1009	}
1010	else
1011	{
1012	Log(("smcRegData_w: Guest attempts to get/put too many value bytes: %#x (max %#x)!\n",
1013	bValue, sizeof(pThis->CurKey.Value)));
1014	pThis->u.s.bStatusCode = SMC_STATUS_CD_KEY_SIZE_MISMATCH; /** @todo check this case! */
1015	}
1016	}
1017	else if ( pThis->bCmd == SMC_CMD_PUT_KEY
1018	&& pThis->offValue < pThis->CurKey.cbValue)
1019	{
1020	/* More value bytes for put key action. */
1021	pThis->CurKey.Value.ab[pThis->offValue++] = bValue;
1022	if (pThis->offValue != pThis->CurKey.cbValue)
1023	pThis->u.s.bState = 0x05;
1024	else
1025	{
1026	pThis->u.s.bState = 0x00;
1027	pThis->u.s.bStatusCode = smcKeyPutValue(pThis);
1028	}
1029	}
1030	else
1031	{
1032	Log(("smcRegData_w: Writing too much data on %s command!\n", pThis->bCmd == SMC_CMD_PUT_KEY ? "put" : "get"));
1033	pThis->u.s.bState = 0x00;
1034	pThis->u.s.bStatusCode = SMC_STATUS_CD_SPURIOUS_DATA;
1035	}
1036	break;
1037
1038	/*
1039	* Get key info and key by index seems to take action after the last
1040	* key char is written. They then both go into a data reading phase.
1041	*/
1042	case SMC_CMD_GET_KEY_INFO:
1043	case SMC_CMD_GET_KEY_BY_INDEX:
1044	if (pThis->offKey < 4)
1045	{
1046	pThis->CurKey.Key.ab[pThis->offKey] = bValue;
1047	if (++pThis->offKey == 4)
1048	{
1049	if (pThis->bCmd == SMC_CMD_GET_KEY_BY_INDEX)
1050	pThis->u.s.bStatusCode = smcKeyGetByIndex(pThis);
1051	else
1052	pThis->u.s.bStatusCode = smcKeyGetAttrByName(pThis);
1053	pThis->u.s.bState = pThis->u.s.bStatusCode == SMC_STATUS_CD_SUCCESS ? 0x05 : 0x00;
1054	}
1055	else
1056	{
1057	pThis->u.s.bState = 0x04;
1058	pThis->u.s.bStatusCode = SMC_STATUS_CD_SUCCESS;
1059	}
1060	}
1061	else
1062	{
1063	Log(("smcRegData_w: Writing data beyond 5th byte on get %s command!\n",
1064	pThis->bCmd == SMC_CMD_GET_KEY_INFO ? "info" : "by index"));
1065	pThis->u.s.bState = 0x00;
1066	pThis->u.s.bStatusCode = SMC_STATUS_CD_SPURIOUS_DATA;
1067	}
1068	break;
1069
1070	default:
1071	Log(("smcRegData_w: Unknown command %#x!\n", bValue));
1072	pThis->u.s.bState = 0x00; /** @todo Check statuses with real HW. */
1073	pThis->u.s.bStatusCode = SMC_STATUS_CD_BAD_COMMAND;
1074	break;
1075	}
1076	return VINF_SUCCESS;
1077	}
1078
1079
1080	/**
1081	* Command register write.
1082	*
1083	* @returns VINF_SUCCESS or VINF_IOM_R3_IOPORT_WRITE.
1084	* @param uReg The register number.
1085	* @param bValue The value being written.
1086	*/
1087	static int smcRegCmd_w(PDEVSMC pThis, uint8_t uReg, uint8_t bValue)
1088	{
1089	LogFlow(("smcRegCmd_w: New command: %#x (old=%#x)\n", bValue, pThis->bCmd)); NOREF(uReg);
1090
1091	pThis->bCmd = bValue;
1092
1093	/* Validate the command. */
1094	switch (bValue)
1095	{
1096	case SMC_CMD_GET_KEY_VALUE:
1097	case SMC_CMD_PUT_KEY:
1098	case SMC_CMD_GET_KEY_BY_INDEX:
1099	case SMC_CMD_GET_KEY_INFO:
1100	pThis->u.s.bState = 0x0c;
1101	pThis->u.s.bStatusCode = SMC_STATUS_CD_SUCCESS;
1102	break;
1103
1104	default:
1105	Log(("SMC: Unknown command %#x!\n", bValue));
1106	pThis->u.s.bState = 0x00; /** @todo Check state with real HW. */
1107	pThis->u.s.bStatusCode = SMC_STATUS_CD_BAD_COMMAND;
1108	break;
1109	}
1110
1111	/* Reset the value/key related state. */
1112	pThis->offKey = 0;
1113	pThis->offValue = 0;
1114	pThis->CurKey.Key.u32 = 0;
1115	pThis->CurKey.cbValue = 0;
1116
1117	return VINF_SUCCESS;
1118	}
1119
1120
1121	/**
1122	* Generic register write.
1123	*
1124	* @returns VINF_SUCCESS or VINF_IOM_R3_IOPORT_WRITE.
1125	* @param uReg The register number.
1126	* @param bValue The value being written.
1127	*/
1128	static int smcRegGen_w(PDEVSMC pThis, uint8_t uReg, uint8_t bValue)
1129	{
1130	Log(("smcRegGen_w: %#04x: %#x -> %#x (write)\n", uReg, pThis->u.abRegsRW[uReg], bValue));
1131	pThis->u.abRegsRW[uReg] = bValue;
1132	return VINF_SUCCESS;
1133	}
1134
1135
1136	/**
1137	* Read from register that isn't writable and reads as 0xFF.
1138	*
1139	* @returns VINF_SUCCESS or VINF_IOM_R3_IOPORT_WRITE.
1140	* @param uReg The register number.
1141	* @param pbValue Where to return the value.
1142	*/
1143	static int smcRegGen_r(PDEVSMC pThis, uint8_t uReg, uint8_t *pbValue)
1144	{
1145	Log(("smcRegGen_r: %#04x: %#x (read)\n", uReg, pThis->u.abRegsRW[uReg]));
1146	*pbValue = pThis->u.abRegsRW[uReg];
1147	return VINF_SUCCESS;
1148	}
1149
1150
1151	/**
1152	* Write to register that isn't writable and reads as 0xFF.
1153	*
1154	* @returns VINF_SUCCESS or VINF_IOM_R3_IOPORT_WRITE.
1155	* @param uReg The register number.
1156	* @param bValue The value being written.
1157	*/
1158	static int smcRegFF_w(PDEVSMC pThis, uint8_t uReg, uint8_t bValue)
1159	{
1160	RT_NOREF3(pThis, uReg, bValue);
1161	Log(("SMC: %#04x: Writing %#x to unknown register!\n", uReg, bValue));
1162	return VINF_SUCCESS;
1163	}
1164
1165
1166	/**
1167	* Read from register that isn't writable and reads as 0xFF.
1168	*
1169	* @returns VINF_SUCCESS or VINF_IOM_R3_IOPORT_WRITE.
1170	* @param uReg The register number.
1171	* @param pbValue Where to return the value.
1172	*/
1173	static int smcRegFF_r(PDEVSMC pThis, uint8_t uReg, uint8_t *pbValue)
1174	{
1175	RT_NOREF2(pThis, uReg);
1176	Log(("SMC: %#04x: Reading from unknown register!\n", uReg));
1177	*pbValue = 0xff;
1178	return VINF_SUCCESS;
1179	}
1180
1181
1182
1183	/**
1184	* SMC register handlers (indexed by relative I/O port).
1185	*
1186	* The device seems to be all byte registers and will split wider
1187	* accesses between registers like if it was MMIO. To better illustrate it
1188	* here is the output of the code in devR0SmcInitOnce on a MacPro3,1:
1189	* @verbatim
1190	* SMC: 0x0300=0xffffff63 w={0xff63, 0xffff}, b={0x63 0xff 0xff 0xff}
1191	* SMC: 0x0301=0x0cffffff w={0xffff, 0x0cff}, b={0xff 0xff 0xff 0x0c}
1192	* SMC: 0x0302=0xff0cffff w={0xffff, 0xff0c}, b={0xff 0xff 0x0c 0xff}
1193	* SMC: 0x0303=0xffff0cff w={0x0cff, 0xffff}, b={0xff 0x0c 0xff 0xff}
1194	* SMC: 0x0304=0xffffff0c w={0xff0c, 0xffff}, b={0x0c 0xff 0xff 0xff}
1195	* SMC: 0x0305=0xffffffff w={0xffff, 0xffff}, b={0xff 0xff 0xff 0xff}
1196	* SMC: 0x0306=0xffffffff w={0xffff, 0xffff}, b={0xff 0xff 0xff 0xff}
1197	* SMC: 0x0307=0xffffffff w={0xffff, 0xffff}, b={0xff 0xff 0xff 0xff}
1198	* SMC: 0x0308=0xffffffff w={0xffff, 0xffff}, b={0xff 0xff 0xff 0xff}
1199	* SMC: 0x0309=0xffffffff w={0xffff, 0xffff}, b={0xff 0xff 0xff 0xff}
1200	* SMC: 0x030a=0xffffffff w={0xffff, 0xffff}, b={0xff 0xff 0xff 0xff}
1201	* SMC: 0x030b=0xffffffff w={0xffff, 0xffff}, b={0xff 0xff 0xff 0xff}
1202	* SMC: 0x030c=0xffffffff w={0xffff, 0xffff}, b={0xff 0xff 0xff 0xff}
1203	* SMC: 0x030d=0x00ffffff w={0xffff, 0x00ff}, b={0xff 0xff 0xff 0x00}
1204	* SMC: 0x030e=0x0000ffff w={0xffff, 0x0000}, b={0xff 0xff 0x00 0x00}
1205	* SMC: 0x030f=0x000000ff w={0x00ff, 0x0000}, b={0xff 0x00 0x00 0x00}
1206	* SMC: 0x0310=0x00000000 w={0x0000, 0x0000}, b={0x00 0x00 0x00 0x00}
1207	* SMC: 0x0311=0x00000000 w={0x0000, 0x0000}, b={0x00 0x00 0x00 0x00}
1208	* SMC: 0x0312=0x00000000 w={0x0000, 0x0000}, b={0x00 0x00 0x00 0x00}
1209	* SMC: 0x0313=0x00000000 w={0x0000, 0x0000}, b={0x00 0x00 0x00 0x00}
1210	* SMC: 0x0314=0x00000000 w={0x0000, 0x0000}, b={0x00 0x00 0x00 0x00}
1211	* SMC: 0x0315=0x00000000 w={0x0000, 0x0000}, b={0x00 0x00 0x00 0x00}
1212	* SMC: 0x0316=0x00000000 w={0x0000, 0x0000}, b={0x00 0x00 0x00 0x00}
1213	* SMC: 0x0317=0x00000000 w={0x0000, 0x0000}, b={0x00 0x00 0x00 0x00}
1214	* SMC: 0x0318=0x00000000 w={0x0000, 0x0000}, b={0x00 0x00 0x00 0x00}
1215	* SMC: 0x0319=0xbe000000 w={0x0000, 0xbe00}, b={0x00 0x00 0x00 0xbe}
1216	* SMC: 0x031a=0xbabe0000 w={0x0000, 0xbabe}, b={0x00 0x00 0xbe 0xba}
1217	* SMC: 0x031b=0x00babe00 w={0xbe00, 0x00ba}, b={0x00 0xbe 0xba 0x00}
1218	* SMC: 0x031c=0xbe00babe w={0xbabe, 0xbe00}, b={0xbe 0xba 0x00 0xbe}
1219	* SMC: 0x031d=0xffbe00ba w={0x00ba, 0xffbe}, b={0xba 0x00 0xbe 0xff}
1220	* SMC: 0x031e=0xffffbe00 w={0xbe00, 0xffff}, b={0x00 0xbe 0xff 0xff}
1221	* SMC: 0x031f=0xffffffbe w={0xffbe, 0xffff}, b={0xbe 0xff 0xff 0xff}
1222	* @endverbatim
1223	*
1224	* The last dword is writable (0xbeXXbabe) where in the register at 0x1e is some
1225	* kind of status register for qualifying search failures and the like and will
1226	* be cleared under certain conditions. The whole dword can be written and read
1227	* back unchanged, according to my experiments. The 0x00 and 0x04 registers
1228	* does not read back what is written.
1229	*
1230	* My guess is that the 0xff values indicates ports that are not writable and
1231	* hardwired to 0xff, while the other values indicates ports that can be written
1232	* to and normally read back as written. I'm not going to push my luck too far
1233	* wrt to exact behavior until I see the guest using the registers.
1234	*/
1235	static const struct
1236	{
1237	int (*pfnWrite)(PDEVSMC pThis, uint8_t uReg, uint8_t bValue);
1238	int (pfnRead)(PDEVSMC pThis, uint8_t uReg, uint8_t pbValue);
1239	} g_aSmcRegs[SMC_REG_COUNT] =
1240	{
1241	/* [0x00] = */ { smcRegData_w, smcRegData_r },
1242	/* [0x01] = */ { smcRegFF_w, smcRegFF_r },
1243	/* [0x02] = */ { smcRegFF_w, smcRegFF_r },
1244	/* [0x03] = */ { smcRegFF_w, smcRegFF_r },
1245	/* [0x04] = */ { smcRegCmd_w, smcRegGen_r },
1246	/* [0x05] = */ { smcRegFF_w, smcRegFF_r },
1247	/* [0x06] = */ { smcRegFF_w, smcRegFF_r },
1248	/* [0x07] = */ { smcRegFF_w, smcRegFF_r },
1249	/* [0x08] = */ { smcRegFF_w, smcRegFF_r },
1250	/* [0x09] = */ { smcRegFF_w, smcRegFF_r },
1251	/* [0x0a] = */ { smcRegFF_w, smcRegFF_r },
1252	/* [0x0b] = */ { smcRegFF_w, smcRegFF_r },
1253	/* [0x0c] = */ { smcRegFF_w, smcRegFF_r },
1254	/* [0x0d] = */ { smcRegFF_w, smcRegFF_r },
1255	/* [0x0e] = */ { smcRegFF_w, smcRegFF_r },
1256	/* [0x0f] = */ { smcRegFF_w, smcRegFF_r },
1257	/* [0x10] = */ { smcRegGen_w, smcRegGen_r },
1258	/* [0x11] = */ { smcRegGen_w, smcRegGen_r },
1259	/* [0x12] = */ { smcRegGen_w, smcRegGen_r },
1260	/* [0x13] = */ { smcRegGen_w, smcRegGen_r },
1261	/* [0x14] = */ { smcRegGen_w, smcRegGen_r },
1262	/* [0x15] = */ { smcRegGen_w, smcRegGen_r },
1263	/* [0x16] = */ { smcRegGen_w, smcRegGen_r },
1264	/* [0x17] = */ { smcRegGen_w, smcRegGen_r },
1265	/* [0x18] = */ { smcRegGen_w, smcRegGen_r },
1266	/* [0x19] = */ { smcRegGen_w, smcRegGen_r },
1267	/* [0x1a] = */ { smcRegGen_w, smcRegGen_r },
1268	/* [0x1b] = */ { smcRegGen_w, smcRegGen_r },
1269	/* [0x1c] = */ { smcRegGen_w, smcRegGen_r },
1270	/* [0x1d] = */ { smcRegGen_w, smcRegGen_r },
1271	/* [0x1e] = */ { smcRegGen_w, smcRegGen_r },
1272	/* [0x1f] = */ { smcRegGen_w, smcRegGen_r },
1273	};
1274
1275
1276	/** @callback_method_impl{FNIOMIOPORTOUT} */
1277	PDMBOTHCBDECL(int) smcIoPortWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
1278	{
1279	RT_NOREF1(pvUser);
1280	#ifndef IN_RING3
1281	if (cb > 1)
1282	return VINF_IOM_R3_IOPORT_WRITE;
1283	#endif
1284
1285	/*
1286	* The first register, usually only one is accessed.
1287	*/
1288	PDEVSMC pThis = PDMINS_2_DATA(pDevIns, PDEVSMC);
1289	uint32_t uReg = Port - SMC_PORT_FIRST;
1290	AssertReturn(uReg < RT_ELEMENTS(g_aSmcRegs), VERR_INTERNAL_ERROR_3); /* impossible*/
1291	int rc = g_aSmcRegs[uReg].pfnWrite(pThis, uReg, u32);
1292
1293	/*
1294	* On the off chance that multiple registers are being read.
1295	*/
1296	if (cb > 1)
1297	{
1298	while (cb > 1 && uReg < SMC_REG_COUNT - 1)
1299	{
1300	cb--;
1301	uReg++;
1302	u32 >>= 8;
1303	int rc2 = g_aSmcRegs[uReg].pfnWrite(pThis, uReg, u32);
1304	if (rc2 != VINF_SUCCESS)
1305	{
1306	if ( rc == VINF_SUCCESS
1307	\|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc))
1308	\|\| (rc2 < rc && RT_SUCCESS(rc2) && RT_SUCCESS(rc)))
1309	rc = rc2;
1310	}
1311	}
1312	}
1313
1314	LogFlow(("smcIoPortWrite: %#04x write access: %#x (LB %u) rc=%Rrc\n", uReg, u32, cb, rc));
1315	return rc;
1316	}
1317
1318
1319	/** @callback_method_impl{FNIOMIOPORTIN} */
1320	PDMBOTHCBDECL(int) smcIoPortRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
1321	{
1322	RT_NOREF1(pvUser);
1323	#ifndef IN_RING3
1324	if (cb > 1)
1325	return VINF_IOM_R3_IOPORT_READ;
1326	#endif
1327
1328	PDEVSMC pThis = PDMINS_2_DATA(pDevIns, PDEVSMC);
1329
1330	/*
1331	* The first register, usually only one is accessed.
1332	*/
1333	uint32_t uReg = Port - SMC_PORT_FIRST;
1334	AssertReturn(uReg < RT_ELEMENTS(g_aSmcRegs), VERR_INTERNAL_ERROR_3); /* impossible*/
1335	Log2(("smcIoPortRead: %#04x read access: LB %u\n", uReg, cb));
1336	uint8_t bValue = 0xff;
1337	int rc = g_aSmcRegs[uReg].pfnRead(pThis, uReg, &bValue);
1338	*pu32 = bValue;
1339
1340	/*
1341	* On the off chance that multiple registers are being read.
1342	*/
1343	if (cb > 1)
1344	{
1345	do
1346	{
1347	cb--;
1348	uReg++;
1349	bValue = 0xff;
1350	if (uReg < SMC_REG_COUNT)
1351	{
1352	int rc2 = g_aSmcRegs[uReg].pfnRead(pThis, uReg, &bValue);
1353	if (rc2 != VINF_SUCCESS)
1354	{
1355	if ( rc == VINF_SUCCESS
1356	\|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc))
1357	\|\| (rc2 < rc && RT_SUCCESS(rc2) && RT_SUCCESS(rc)))
1358	rc = rc2;
1359	}
1360	}
1361	pu32 \|= (uint32_t)bValue << ((4 - cb) 8);
1362	} while (cb > 1);
1363	}
1364	LogFlow(("smcIoPortRead: %#04x read access: %#x (LB %u) rc=%Rrc\n", uReg, *pu32, cb, rc));
1365	return rc;
1366	}
1367
1368	#endif /* IN_RING3 for now */
1369	#ifdef IN_RING3
1370
1371	/** @callback_method_impl{FNSSMDEVSAVEEXEC} */
1372	static DECLCALLBACK(int) smcSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1373	{
1374	PDEVSMC pThis = PDMINS_2_DATA(pDevIns, PDEVSMC);
1375	RT_NOREF2(pSSM, pThis);
1376
1377	/** @todo */
1378
1379	return VINF_SUCCESS;
1380	}
1381
1382
1383	/** @callback_method_impl{FNSSMDEVLOADEXEC} */
1384	static DECLCALLBACK(int) smcLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1385	{
1386	PDEVSMC pThis = PDMINS_2_DATA(pDevIns, PDEVSMC);
1387	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
1388	RT_NOREF2(pSSM, pThis);
1389
1390	/* Fend off unsupported versions. */
1391	if ( uVersion != SMC_SAVED_STATE_VERSION
1392	#if SMC_SAVED_STATE_VERSION != SMC_SAVED_STATE_VERSION_BAKA
1393	&& uVersion != SMC_SAVED_STATE_VERSION_BAKA
1394	#endif
1395	&& uVersion != SMC_SAVED_STATE_VERSION_BAKA + 1)
1396	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1397
1398	/*
1399	* Do the actual restoring.
1400	*/
1401	if (uVersion == SMC_SAVED_STATE_VERSION)
1402	{
1403	/** @todo */
1404	}
1405
1406	return VINF_SUCCESS;
1407	}
1408
1409
1410	/**
1411	* @interface_method_impl{PDMDEVREG,pfnConstruct}
1412	*/
1413	static DECLCALLBACK(int) smcConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
1414	{
1415	RT_NOREF1(iInstance);
1416	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
1417	PDEVSMC pThis = PDMINS_2_DATA(pDevIns, PDEVSMC);
1418	Assert(iInstance == 0);
1419
1420	/*
1421	* Init the data.
1422	*/
1423	pThis->bDollaryNumber = 1;
1424	pThis->bShutdownReason = 3; /* STOP_CAUSE_POWERKEY_GOOD_CODE */
1425
1426	/*
1427	* Validate configuration.
1428	*/
1429	PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "DeviceKey\|GetKeyFromRealSMC", "");
1430
1431	/*
1432	* Read configuration.
1433	*/
1434
1435	/* The DeviceKey sets OSK0 and OSK1. */
1436	int rc = CFGMR3QueryStringDef(pCfg, "DeviceKey", pThis->szOsk0And1, sizeof(pThis->szOsk0And1), "");
1437	if (RT_FAILURE(rc))
1438	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1439	N_("Configuration error: Querying \"DeviceKey\" as a string failed"));
1440
1441	/* Query the key from the OS / real hardware if asked to do so. */
1442	bool fGetKeyFromRealSMC;
1443	rc = CFGMR3QueryBoolDef(pCfg, "GetKeyFromRealSMC", &fGetKeyFromRealSMC, false);
1444	if (RT_FAILURE(rc))
1445	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1446	N_("Configuration error: Querying \"GetKeyFromRealSMC\" as a boolean failed"));
1447	if (fGetKeyFromRealSMC)
1448	{
1449	#ifdef RT_OS_DARWIN
1450	rc = getSmcKeyOs(pThis->szOsk0And1, sizeof(pThis->szOsk0And1));
1451	if (RT_FAILURE(rc))
1452	{
1453	LogRel(("SMC: Retrieving the SMC key from the OS failed (%Rrc), trying to read it from hardware\n", rc));
1454	#endif
1455	rc = PDMDevHlpCallR0(pDevIns, SMC_CALLR0_READ_OSK, 0 /u64Arg/);
1456	if (RT_SUCCESS(rc))
1457	LogRel(("SMC: Successfully retrieved the SMC key from hardware\n"));
1458	else
1459	LogRel(("SMC: Retrieving the SMC key from hardware failed(%Rrc)\n", rc));
1460	#ifdef RT_OS_DARWIN
1461	}
1462	else
1463	LogRel(("SMC: Successfully retrieved the SMC key from the OS\n"));
1464	#endif
1465	if (RT_FAILURE(rc))
1466	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1467	N_("Failed to query SMC value from the host"));
1468	}
1469
1470	/*
1471	* Register I/O Ports
1472	*/
1473	rc = PDMDevHlpIOPortRegister(pDevIns, SMC_PORT_FIRST, SMC_REG_COUNT, NULL,
1474	smcIoPortWrite, smcIoPortRead,
1475	NULL, NULL, "SMC data port");
1476	AssertRCReturn(rc, rc);
1477
1478	/** @todo Newer versions (2.03) have an MMIO mapping as well (ACPI). */
1479
1480
1481	/*
1482	* Saved state.
1483	*/
1484	rc = PDMDevHlpSSMRegister(pDevIns, SMC_SAVED_STATE_VERSION, sizeof(*pThis), smcSaveExec, smcLoadExec);
1485	if (RT_FAILURE(rc))
1486	return rc;
1487
1488	return VINF_SUCCESS;
1489	}
1490
1491
1492	/**
1493	* The device registration structure.
1494	*/
1495	const PDMDEVREG g_DeviceSmc =
1496	{
1497	/* u32Version */
1498	PDM_DEVREG_VERSION,
1499	/* szName */
1500	"smc",
1501	/* szRCMod */
1502	"VBoxDDRC.rc",
1503	/* szR0Mod */
1504	"VBoxDDR0.r0",
1505	/* pszDescription */
1506	"Apple System Management Controller",
1507	/* fFlags */
1508	PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_GUEST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_R0 \| PDM_DEVREG_FLAGS_RC,
1509	/* fClass */
1510	PDM_DEVREG_CLASS_ARCH,
1511	/* cMaxInstances */
1512	1,
1513	/* cbInstance */
1514	sizeof(DEVSMC),
1515	/* pfnConstruct */
1516	smcConstruct,
1517	/* pfnDestruct */
1518	NULL,
1519	/* pfnRelocate */
1520	NULL,
1521	/* pfnMemSetup */
1522	NULL,
1523	/* pfnPowerOn */
1524	NULL,
1525	/* pfnReset */
1526	NULL,
1527	/* pfnSuspend */
1528	NULL,
1529	/* pfnResume */
1530	NULL,
1531	/* pfnAttach */
1532	NULL,
1533	/* pfnDetach */
1534	NULL,
1535	/* pfnQueryInterface. */
1536	NULL,
1537	/* pfnInitComplete. */
1538	NULL,
1539	/* pfnPowerOff */
1540	NULL,
1541	/* pfnSoftReset */
1542	NULL,
1543	/* u32VersionEnd */
1544	PDM_DEVREG_VERSION
1545	};
1546
1547	#endif /* IN_RING3 */
1548	#endif /* VBOX_DEVICE_STRUCT_TESTCASE */

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source: vbox/trunk/src/VBox/Devices/EFI/DevSmc.cpp@ 75593

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