bs3-cpu-instr-2-template.c@ 80360

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1	/* $Id: bs3-cpu-instr-2-template.c 76553 2019-01-01 01:45:53Z vboxsync $ */
2	/** @file
3	* BS3Kit - bs3-cpu-instr-2, C code template.
4	*/
5
6	/*
7	* Copyright (C) 2007-2019 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/asm.h>
32	#include <iprt/asm-amd64-x86.h>
33
34
35
36
37	/*********************************************************************************************************************************
38	* Structures and Typedefs *
39	*********************************************************************************************************************************/
40	#ifdef BS3_INSTANTIATING_CMN
41	# if ARCH_BITS == 64
42	typedef struct BS3CI2FSGSBASE
43	{
44	const char *pszDesc;
45	bool f64BitOperand;
46	FPFNBS3FAR pfnWorker;
47	uint8_t offWorkerUd2;
48	FPFNBS3FAR pfnVerifyWorker;
49	uint8_t offVerifyWorkerUd2;
50	} BS3CI2FSGSBASE;
51	# endif
52	#endif
53
54
55	/*********************************************************************************************************************************
56	* External Symbols *
57	*********************************************************************************************************************************/
58	#ifdef BS3_INSTANTIATING_CMN
59	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_mul_xBX_ud2);
60	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_imul_xBX_ud2);
61	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_imul_xCX_xBX_ud2);
62	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_div_xBX_ud2);
63	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_idiv_xBX_ud2);
64	# if ARCH_BITS == 64
65	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_cmpxchg16b_rdi_ud2);
66	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_lock_cmpxchg16b_rdi_ud2);
67	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_o16_cmpxchg16b_rdi_ud2);
68	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_lock_o16_cmpxchg16b_rdi_ud2);
69	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_repz_cmpxchg16b_rdi_ud2);
70	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_lock_repz_cmpxchg16b_rdi_ud2);
71	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_repnz_cmpxchg16b_rdi_ud2);
72	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_lock_repnz_cmpxchg16b_rdi_ud2);
73
74	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_wrfsbase_rbx_ud2);
75	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_wrfsbase_ebx_ud2);
76	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_wrfsbase_rbx_rdfsbase_rcx_ud2);
77	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_wrfsbase_ebx_rdfsbase_ecx_ud2);
78
79	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_wrgsbase_rbx_ud2);
80	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_wrgsbase_ebx_ud2);
81	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_wrgsbase_rbx_rdgsbase_rcx_ud2);
82	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_wrgsbase_ebx_rdgsbase_ecx_ud2);
83
84	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_rdfsbase_rbx_ud2);
85	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_rdfsbase_ebx_ud2);
86	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_rdgsbase_rbx_ud2);
87	extern FNBS3FAR BS3_CMN_NM(bs3CpuInstr2_rdgsbase_ebx_ud2);
88	# endif
89	#endif
90
91
92	/*********************************************************************************************************************************
93	* Global Variables *
94	*********************************************************************************************************************************/
95	#ifdef BS3_INSTANTIATING_CMN
96	# if ARCH_BITS == 64
97	static BS3CI2FSGSBASE const s_aWrFsBaseWorkers[] =
98	{
99	{ "wrfsbase rbx", true, BS3_CMN_NM(bs3CpuInstr2_wrfsbase_rbx_ud2), 5, BS3_CMN_NM(bs3CpuInstr2_wrfsbase_rbx_rdfsbase_rcx_ud2), 13 },
100	{ "wrfsbase ebx", false, BS3_CMN_NM(bs3CpuInstr2_wrfsbase_ebx_ud2), 4, BS3_CMN_NM(bs3CpuInstr2_wrfsbase_ebx_rdfsbase_ecx_ud2), 10 },
101	};
102
103	static BS3CI2FSGSBASE const s_aWrGsBaseWorkers[] =
104	{
105	{ "wrgsbase rbx", true, BS3_CMN_NM(bs3CpuInstr2_wrgsbase_rbx_ud2), 5, BS3_CMN_NM(bs3CpuInstr2_wrgsbase_rbx_rdgsbase_rcx_ud2), 13 },
106	{ "wrgsbase ebx", false, BS3_CMN_NM(bs3CpuInstr2_wrgsbase_ebx_ud2), 4, BS3_CMN_NM(bs3CpuInstr2_wrgsbase_ebx_rdgsbase_ecx_ud2), 10 },
107	};
108
109	static BS3CI2FSGSBASE const s_aRdFsBaseWorkers[] =
110	{
111	{ "rdfsbase rbx", true, BS3_CMN_NM(bs3CpuInstr2_rdfsbase_rbx_ud2), 5, BS3_CMN_NM(bs3CpuInstr2_wrfsbase_rbx_rdfsbase_rcx_ud2), 13 },
112	{ "rdfsbase ebx", false, BS3_CMN_NM(bs3CpuInstr2_rdfsbase_ebx_ud2), 4, BS3_CMN_NM(bs3CpuInstr2_wrfsbase_ebx_rdfsbase_ecx_ud2), 10 },
113	};
114
115	static BS3CI2FSGSBASE const s_aRdGsBaseWorkers[] =
116	{
117	{ "rdgsbase rbx", true, BS3_CMN_NM(bs3CpuInstr2_rdgsbase_rbx_ud2), 5, BS3_CMN_NM(bs3CpuInstr2_wrgsbase_rbx_rdgsbase_rcx_ud2), 13 },
118	{ "rdgsbase ebx", false, BS3_CMN_NM(bs3CpuInstr2_rdgsbase_ebx_ud2), 4, BS3_CMN_NM(bs3CpuInstr2_wrgsbase_ebx_rdgsbase_ecx_ud2), 10 },
119	};
120	# endif
121	#endif /* BS3_INSTANTIATING_CMN - global */
122
123
124	/*
125	* Common code.
126	* Common code.
127	* Common code.
128	*/
129	#ifdef BS3_INSTANTIATING_CMN
130
131	BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_mul)(uint8_t bMode)
132	{
133	#define MUL_CHECK_EFLAGS_ZERO (uint16_t)(X86_EFL_AF \| X86_EFL_ZF)
134	#define MUL_CHECK_EFLAGS (uint16_t)(X86_EFL_CF \| X86_EFL_OF \| X86_EFL_SF \| X86_EFL_PF)
135
136	static const struct
137	{
138	RTCCUINTREG uInAX;
139	RTCCUINTREG uInBX;
140	RTCCUINTREG uOutDX;
141	RTCCUINTREG uOutAX;
142	uint16_t fFlags;
143	} s_aTests[] =
144	{
145	{ 1, 1,
146	0, 1, 0 },
147	{ 2, 2,
148	0, 4, 0 },
149	{ RTCCUINTREG_MAX, RTCCUINTREG_MAX,
150	RTCCUINTREG_MAX-1, 1, X86_EFL_CF \| X86_EFL_OF },
151	{ RTCCINTREG_MAX, RTCCINTREG_MAX,
152	RTCCINTREG_MAX / 2, 1, X86_EFL_CF \| X86_EFL_OF },
153	{ 1, RTCCUINTREG_MAX,
154	0, RTCCUINTREG_MAX, X86_EFL_PF \| X86_EFL_SF },
155	{ 1, RTCCINTREG_MAX,
156	0, RTCCINTREG_MAX, X86_EFL_PF },
157	{ 2, RTCCINTREG_MAX,
158	0, RTCCUINTREG_MAX - 1, X86_EFL_SF },
159	{ (RTCCUINTREG)RTCCINTREG_MAX + 1, 2,
160	1, 0, X86_EFL_PF \| X86_EFL_CF \| X86_EFL_OF },
161	{ (RTCCUINTREG)RTCCINTREG_MAX / 2 + 1, 3,
162	0, ((RTCCUINTREG)RTCCINTREG_MAX / 2 + 1) * 3, X86_EFL_PF \| X86_EFL_SF },
163	};
164
165	BS3REGCTX Ctx;
166	BS3TRAPFRAME TrapFrame;
167	unsigned i, j, k;
168
169	/* Ensure the structures are allocated before we sample the stack pointer. */
170	Bs3MemSet(&Ctx, 0, sizeof(Ctx));
171	Bs3MemSet(&TrapFrame, 0, sizeof(TrapFrame));
172
173	/*
174	* Create test context.
175	*/
176	Bs3RegCtxSaveEx(&Ctx, bMode, 512);
177	Bs3RegCtxSetRipCsFromCurPtr(&Ctx, BS3_CMN_NM(bs3CpuInstr2_mul_xBX_ud2));
178	for (k = 0; k < 2; k++)
179	{
180	Ctx.rflags.u16 \|= MUL_CHECK_EFLAGS \| MUL_CHECK_EFLAGS_ZERO;
181	for (j = 0; j < 2; j++)
182	{
183	for (i = 0; i < RT_ELEMENTS(s_aTests); i++)
184	{
185	if (k == 0)
186	{
187	Ctx.rax.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInAX;
188	Ctx.rbx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInBX;
189	}
190	else
191	{
192	Ctx.rax.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInBX;
193	Ctx.rbx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInAX;
194	}
195	Bs3TrapSetJmpAndRestore(&Ctx, &TrapFrame);
196	if (TrapFrame.bXcpt != X86_XCPT_UD)
197	Bs3TestFailedF("Expected #UD got %#x", TrapFrame.bXcpt);
198	else if ( TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutAX
199	\|\| TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutDX
200	\|\| (TrapFrame.Ctx.rflags.u16 & (MUL_CHECK_EFLAGS \| MUL_CHECK_EFLAGS_ZERO))
201	!= (s_aTests[i].fFlags & MUL_CHECK_EFLAGS) )
202	{
203	Bs3TestFailedF("test #%i failed: input %#" RTCCUINTREG_XFMT " * %#" RTCCUINTREG_XFMT,
204	i, s_aTests[i].uInAX, s_aTests[i].uInBX);
205
206	if (TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutAX)
207	Bs3TestFailedF("Expected xAX = %#RX" RT_XSTR(ARCH_BITS) " got %#RX" RT_XSTR(ARCH_BITS),
208	s_aTests[i].uOutAX, TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS));
209	if (TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutDX)
210	Bs3TestFailedF("Expected xDX = %#RX" RT_XSTR(ARCH_BITS) " got %#RX" RT_XSTR(ARCH_BITS),
211	s_aTests[i].uOutDX, TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS));
212	if ( (TrapFrame.Ctx.rflags.u16 & (MUL_CHECK_EFLAGS \| MUL_CHECK_EFLAGS_ZERO))
213	!= (s_aTests[i].fFlags & MUL_CHECK_EFLAGS) )
214	Bs3TestFailedF("Expected EFLAGS = %#06RX16, got %#06RX16", s_aTests[i].fFlags & MUL_CHECK_EFLAGS,
215	TrapFrame.Ctx.rflags.u16 & (MUL_CHECK_EFLAGS \| MUL_CHECK_EFLAGS_ZERO));
216	}
217	}
218	Ctx.rflags.u16 &= ~(MUL_CHECK_EFLAGS \| MUL_CHECK_EFLAGS_ZERO);
219	}
220	}
221
222	return 0;
223	}
224
225
226	BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_imul)(uint8_t bMode)
227	{
228	#define IMUL_CHECK_EFLAGS_ZERO (uint16_t)(X86_EFL_AF \| X86_EFL_ZF)
229	#define IMUL_CHECK_EFLAGS (uint16_t)(X86_EFL_CF \| X86_EFL_OF \| X86_EFL_SF \| X86_EFL_PF)
230	static const struct
231	{
232	RTCCUINTREG uInAX;
233	RTCCUINTREG uInBX;
234	RTCCUINTREG uOutDX;
235	RTCCUINTREG uOutAX;
236	uint16_t fFlags;
237	} s_aTests[] =
238	{
239	/* two positive values. */
240	{ 1, 1,
241	0, 1, 0 },
242	{ 2, 2,
243	0, 4, 0 },
244	{ RTCCINTREG_MAX, RTCCINTREG_MAX,
245	RTCCINTREG_MAX/2, 1, X86_EFL_CF \| X86_EFL_OF },
246	{ 1, RTCCINTREG_MAX,
247	0, RTCCINTREG_MAX, X86_EFL_PF },
248	{ 2, RTCCINTREG_MAX,
249	0, RTCCUINTREG_MAX - 1U, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_SF },
250	{ 2, RTCCINTREG_MAX / 2,
251	0, RTCCINTREG_MAX - 1U, 0 },
252	{ 2, (RTCCINTREG_MAX / 2 + 1),
253	0, (RTCCUINTREG)RTCCINTREG_MAX + 1U, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_SF \| X86_EFL_PF },
254	{ 4, (RTCCINTREG_MAX / 2 + 1),
255	1, 0, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_PF },
256
257	/* negative and positive */
258	{ -4, 3,
259	-1, -12, X86_EFL_SF },
260	{ 32, -127,
261	-1, -4064, X86_EFL_SF },
262	{ RTCCINTREG_MIN, 1,
263	-1, RTCCINTREG_MIN, X86_EFL_SF \| X86_EFL_PF },
264	{ RTCCINTREG_MIN, 2,
265	-1, 0, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_PF },
266	{ RTCCINTREG_MIN, 3,
267	-2, RTCCINTREG_MIN, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_SF \| X86_EFL_PF },
268	{ RTCCINTREG_MIN, 4,
269	-2, 0, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_PF },
270	{ RTCCINTREG_MIN, RTCCINTREG_MAX,
271	RTCCINTREG_MIN / 2, RTCCINTREG_MIN, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_SF \| X86_EFL_PF },
272	{ RTCCINTREG_MIN, RTCCINTREG_MAX - 1,
273	RTCCINTREG_MIN / 2 + 1, 0, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_PF },
274
275	/* two negative values. */
276	{ -4, -63,
277	0, 252, X86_EFL_PF },
278	{ RTCCINTREG_MIN, RTCCINTREG_MIN,
279	RTCCUINTREG_MAX / 4 + 1, 0, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_PF },
280	{ RTCCINTREG_MIN, RTCCINTREG_MIN + 1,
281	RTCCUINTREG_MAX / 4, RTCCINTREG_MIN, X86_EFL_CF \| X86_EFL_OF \| X86_EFL_SF \| X86_EFL_PF},
282	{ RTCCINTREG_MIN + 1, RTCCINTREG_MIN + 1,
283	RTCCUINTREG_MAX / 4, 1, X86_EFL_CF \| X86_EFL_OF },
284
285	};
286
287	BS3REGCTX Ctx;
288	BS3TRAPFRAME TrapFrame;
289	unsigned i, j, k;
290
291	/* Ensure the structures are allocated before we sample the stack pointer. */
292	Bs3MemSet(&Ctx, 0, sizeof(Ctx));
293	Bs3MemSet(&TrapFrame, 0, sizeof(TrapFrame));
294
295	/*
296	* Create test context.
297	*/
298	Bs3RegCtxSaveEx(&Ctx, bMode, 512);
299	Bs3RegCtxSetRipCsFromCurPtr(&Ctx, BS3_CMN_NM(bs3CpuInstr2_imul_xBX_ud2));
300
301	for (k = 0; k < 2; k++)
302	{
303	Ctx.rflags.u16 \|= MUL_CHECK_EFLAGS \| MUL_CHECK_EFLAGS_ZERO;
304	for (j = 0; j < 2; j++)
305	{
306	for (i = 0; i < RT_ELEMENTS(s_aTests); i++)
307	{
308	if (k == 0)
309	{
310	Ctx.rax.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInAX;
311	Ctx.rbx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInBX;
312	}
313	else
314	{
315	Ctx.rax.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInBX;
316	Ctx.rbx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInAX;
317	}
318	Bs3TrapSetJmpAndRestore(&Ctx, &TrapFrame);
319	if (TrapFrame.bXcpt != X86_XCPT_UD)
320	Bs3TestFailedF("Expected #UD got %#x", TrapFrame.bXcpt);
321	else if ( TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutAX
322	\|\| TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutDX
323	\|\| (TrapFrame.Ctx.rflags.u16 & (IMUL_CHECK_EFLAGS \| IMUL_CHECK_EFLAGS_ZERO))
324	!= (s_aTests[i].fFlags & IMUL_CHECK_EFLAGS) )
325	{
326	Bs3TestFailedF("test #%i failed: input %#" RTCCUINTREG_XFMT " * %#" RTCCUINTREG_XFMT,
327	i, s_aTests[i].uInAX, s_aTests[i].uInBX);
328
329	if (TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutAX)
330	Bs3TestFailedF("Expected xAX = %#RX" RT_XSTR(ARCH_BITS) " got %#RX" RT_XSTR(ARCH_BITS),
331	s_aTests[i].uOutAX, TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS));
332	if (TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutDX)
333	Bs3TestFailedF("Expected xDX = %#RX" RT_XSTR(ARCH_BITS) " got %#RX" RT_XSTR(ARCH_BITS),
334	s_aTests[i].uOutDX, TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS));
335	if ( (TrapFrame.Ctx.rflags.u16 & (IMUL_CHECK_EFLAGS \| IMUL_CHECK_EFLAGS_ZERO))
336	!= (s_aTests[i].fFlags & IMUL_CHECK_EFLAGS) )
337	Bs3TestFailedF("Expected EFLAGS = %#06RX16, got %#06RX16", s_aTests[i].fFlags & IMUL_CHECK_EFLAGS,
338	TrapFrame.Ctx.rflags.u16 & (IMUL_CHECK_EFLAGS \| IMUL_CHECK_EFLAGS_ZERO));
339	}
340	}
341	}
342	}
343
344	/*
345	* Repeat for the truncating two operand version.
346	*/
347	Bs3RegCtxSetRipCsFromCurPtr(&Ctx, BS3_CMN_NM(bs3CpuInstr2_imul_xCX_xBX_ud2));
348
349	for (k = 0; k < 2; k++)
350	{
351	Ctx.rflags.u16 \|= MUL_CHECK_EFLAGS \| MUL_CHECK_EFLAGS_ZERO;
352	for (j = 0; j < 2; j++)
353	{
354	for (i = 0; i < RT_ELEMENTS(s_aTests); i++)
355	{
356	if (k == 0)
357	{
358	Ctx.rcx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInAX;
359	Ctx.rbx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInBX;
360	}
361	else
362	{
363	Ctx.rcx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInBX;
364	Ctx.rbx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInAX;
365	}
366	Bs3TrapSetJmpAndRestore(&Ctx, &TrapFrame);
367	if (TrapFrame.bXcpt != X86_XCPT_UD)
368	Bs3TestFailedF("Expected #UD got %#x", TrapFrame.bXcpt);
369	else if ( TrapFrame.Ctx.rcx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutAX
370	\|\| TrapFrame.Ctx.rdx.u != Ctx.rdx.u
371	\|\| TrapFrame.Ctx.rbx.u != Ctx.rbx.u
372	\|\| (TrapFrame.Ctx.rflags.u16 & (IMUL_CHECK_EFLAGS \| IMUL_CHECK_EFLAGS_ZERO))
373	!= (s_aTests[i].fFlags & IMUL_CHECK_EFLAGS) )
374	{
375	Bs3TestFailedF("test #%i failed: input %#" RTCCUINTREG_XFMT " * %#" RTCCUINTREG_XFMT,
376	i, s_aTests[i].uInAX, s_aTests[i].uInBX);
377
378	if (TrapFrame.Ctx.rcx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutAX)
379	Bs3TestFailedF("Expected xAX = %#RX" RT_XSTR(ARCH_BITS) " got %#RX" RT_XSTR(ARCH_BITS),
380	s_aTests[i].uOutAX, TrapFrame.Ctx.rcx.RT_CONCAT(u,ARCH_BITS));
381	if ( (TrapFrame.Ctx.rflags.u16 & (IMUL_CHECK_EFLAGS \| IMUL_CHECK_EFLAGS_ZERO))
382	!= (s_aTests[i].fFlags & IMUL_CHECK_EFLAGS) )
383	Bs3TestFailedF("Expected EFLAGS = %#06RX16, got %#06RX16", s_aTests[i].fFlags & IMUL_CHECK_EFLAGS,
384	TrapFrame.Ctx.rflags.u16 & (IMUL_CHECK_EFLAGS \| IMUL_CHECK_EFLAGS_ZERO));
385	}
386	}
387	}
388	}
389
390	return 0;
391	}
392
393
394	BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_div)(uint8_t bMode)
395	{
396	#define DIV_CHECK_EFLAGS (uint16_t)(X86_EFL_CF \| X86_EFL_OF \| X86_EFL_SF \| X86_EFL_ZF \| X86_EFL_AF \| X86_EFL_PF)
397	static const struct
398	{
399	RTCCUINTREG uInDX;
400	RTCCUINTREG uInAX;
401	RTCCUINTREG uInBX;
402	RTCCUINTREG uOutAX;
403	RTCCUINTREG uOutDX;
404	uint8_t bXcpt;
405	} s_aTests[] =
406	{
407	{ 0, 1, 1,
408	1, 0, X86_XCPT_UD },
409	{ 0, 5, 2,
410	2, 1, X86_XCPT_UD },
411	{ 0, 0, 0,
412	0, 0, X86_XCPT_DE },
413	{ RTCCUINTREG_MAX, RTCCUINTREG_MAX, 0,
414	0, 0, X86_XCPT_DE },
415	{ RTCCUINTREG_MAX, RTCCUINTREG_MAX, 1,
416	0, 0, X86_XCPT_DE },
417	{ RTCCUINTREG_MAX, RTCCUINTREG_MAX, RTCCUINTREG_MAX,
418	0, 0, X86_XCPT_DE },
419	{ RTCCUINTREG_MAX - 1, RTCCUINTREG_MAX, RTCCUINTREG_MAX,
420	RTCCUINTREG_MAX, RTCCUINTREG_MAX - 1, X86_XCPT_UD },
421	};
422
423	BS3REGCTX Ctx;
424	BS3TRAPFRAME TrapFrame;
425	unsigned i, j;
426
427	/* Ensure the structures are allocated before we sample the stack pointer. */
428	Bs3MemSet(&Ctx, 0, sizeof(Ctx));
429	Bs3MemSet(&TrapFrame, 0, sizeof(TrapFrame));
430
431	/*
432	* Create test context.
433	*/
434	Bs3RegCtxSaveEx(&Ctx, bMode, 512);
435	Bs3RegCtxSetRipCsFromCurPtr(&Ctx, BS3_CMN_NM(bs3CpuInstr2_div_xBX_ud2));
436
437	/*
438	* Do the tests twice, first with all flags set, then once again with
439	* flags cleared. The flags are not touched by my intel skylake CPU.
440	*/
441	Ctx.rflags.u16 \|= DIV_CHECK_EFLAGS;
442	for (j = 0; j < 2; j++)
443	{
444	for (i = 0; i < RT_ELEMENTS(s_aTests); i++)
445	{
446	Ctx.rax.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInAX;
447	Ctx.rdx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInDX;
448	Ctx.rbx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInBX;
449	Bs3TrapSetJmpAndRestore(&Ctx, &TrapFrame);
450
451	if ( TrapFrame.bXcpt != s_aTests[i].bXcpt
452	\|\| ( s_aTests[i].bXcpt == X86_XCPT_UD
453	? TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutAX
454	\|\| TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutDX
455	\|\| (TrapFrame.Ctx.rflags.u16 & DIV_CHECK_EFLAGS) != (Ctx.rflags.u16 & DIV_CHECK_EFLAGS)
456	: TrapFrame.Ctx.rax.u != Ctx.rax.u
457	\|\| TrapFrame.Ctx.rdx.u != Ctx.rdx.u
458	\|\| (TrapFrame.Ctx.rflags.u16 & DIV_CHECK_EFLAGS) != (Ctx.rflags.u16 & DIV_CHECK_EFLAGS) ) )
459	{
460	Bs3TestFailedF("test #%i failed: input %#" RTCCUINTREG_XFMT ":%" RTCCUINTREG_XFMT " / %#" RTCCUINTREG_XFMT,
461	i, s_aTests[i].uInDX, s_aTests[i].uInAX, s_aTests[i].uInBX);
462	if (TrapFrame.bXcpt != s_aTests[i].bXcpt)
463	Bs3TestFailedF("Expected bXcpt = %#x, got %#x", s_aTests[i].bXcpt, TrapFrame.bXcpt);
464	if (s_aTests[i].bXcpt == X86_XCPT_UD)
465	{
466	if (TrapFrame.Ctx.rax.RT_CONCAT(u, ARCH_BITS) != s_aTests[i].uOutAX)
467	Bs3TestFailedF("Expected xAX = %#" RTCCUINTREG_XFMT ", got %#" RTCCUINTREG_XFMT,
468	s_aTests[i].uOutAX, TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS));
469	if (TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutDX)
470	Bs3TestFailedF("Expected xDX = %#" RTCCUINTREG_XFMT ", got %#" RTCCUINTREG_XFMT,
471	s_aTests[i].uOutDX, TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS));
472	if ((TrapFrame.Ctx.rflags.u16 & DIV_CHECK_EFLAGS) != (Ctx.rflags.u16 & DIV_CHECK_EFLAGS))
473	Bs3TestFailedF("Expected EFLAGS = %#06RX16, got %#06RX16",
474	Ctx.rflags.u16 & DIV_CHECK_EFLAGS, TrapFrame.Ctx.rflags.u16 & DIV_CHECK_EFLAGS);
475	}
476	}
477	}
478	Ctx.rflags.u16 &= ~DIV_CHECK_EFLAGS;
479	}
480
481	return 0;
482	}
483
484
485
486	BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_idiv)(uint8_t bMode)
487	{
488	#define IDIV_CHECK_EFLAGS (uint16_t)(X86_EFL_CF \| X86_EFL_OF \| X86_EFL_SF \| X86_EFL_ZF \| X86_EFL_AF \| X86_EFL_PF)
489	static const struct
490	{
491	RTCCUINTREG uInDX;
492	RTCCUINTREG uInAX;
493	RTCCUINTREG uInBX;
494	RTCCUINTREG uOutAX;
495	RTCCUINTREG uOutDX;
496	uint8_t bXcpt;
497	} s_aTests[] =
498	{
499	{ 0, 0, 0,
500	0, 0, X86_XCPT_DE },
501	{ RTCCINTREG_MAX, RTCCINTREG_MAX, 0,
502	0, 0, X86_XCPT_DE },
503	/* two positive values. */
504	{ 0, 1, 1,
505	1, 0, X86_XCPT_UD },
506	{ 0, 5, 2,
507	2, 1, X86_XCPT_UD },
508	{ RTCCINTREG_MAX / 2, RTCCUINTREG_MAX / 2, RTCCINTREG_MAX,
509	RTCCINTREG_MAX, RTCCINTREG_MAX - 1, X86_XCPT_UD },
510	{ RTCCINTREG_MAX / 2, RTCCUINTREG_MAX / 2 + 1, RTCCINTREG_MAX,
511	RTCCINTREG_MAX, RTCCINTREG_MAX - 1, X86_XCPT_DE },
512	/* negative dividend, positive divisor. */
513	{ -1, -7, 2,
514	-3, -1, X86_XCPT_UD },
515	{ RTCCINTREG_MIN / 2 + 1, 0, RTCCINTREG_MAX,
516	RTCCINTREG_MIN + 2, RTCCINTREG_MIN + 2, X86_XCPT_UD },
517	{ RTCCINTREG_MIN / 2, 0, RTCCINTREG_MAX,
518	0, 0, X86_XCPT_DE },
519	/* positive dividend, negative divisor. */
520	{ 0, 7, -2,
521	-3, 1, X86_XCPT_UD },
522	{ RTCCINTREG_MAX / 2 + 1, RTCCINTREG_MAX, RTCCINTREG_MIN,
523	RTCCINTREG_MIN, RTCCINTREG_MAX, X86_XCPT_UD },
524	{ RTCCINTREG_MAX / 2 + 1, (RTCCUINTREG)RTCCINTREG_MAX+1, RTCCINTREG_MIN,
525	0, 0, X86_XCPT_DE },
526	/* negative dividend, negative divisor. */
527	{ -1, -7, -2,
528	3, -1, X86_XCPT_UD },
529	{ RTCCINTREG_MIN / 2, 1, RTCCINTREG_MIN,
530	RTCCINTREG_MAX, RTCCINTREG_MIN + 1, X86_XCPT_UD },
531	{ RTCCINTREG_MIN / 2, 2, RTCCINTREG_MIN,
532	RTCCINTREG_MAX, RTCCINTREG_MIN + 2, X86_XCPT_UD },
533	{ RTCCINTREG_MIN / 2, 0, RTCCINTREG_MIN,
534	0, 0, X86_XCPT_DE },
535	};
536
537	BS3REGCTX Ctx;
538	BS3TRAPFRAME TrapFrame;
539	unsigned i, j;
540
541	/* Ensure the structures are allocated before we sample the stack pointer. */
542	Bs3MemSet(&Ctx, 0, sizeof(Ctx));
543	Bs3MemSet(&TrapFrame, 0, sizeof(TrapFrame));
544
545	/*
546	* Create test context.
547	*/
548	Bs3RegCtxSaveEx(&Ctx, bMode, 512);
549	Bs3RegCtxSetRipCsFromCurPtr(&Ctx, BS3_CMN_NM(bs3CpuInstr2_idiv_xBX_ud2));
550
551	/*
552	* Do the tests twice, first with all flags set, then once again with
553	* flags cleared. The flags are not touched by my intel skylake CPU.
554	*/
555	Ctx.rflags.u16 \|= IDIV_CHECK_EFLAGS;
556	for (j = 0; j < 2; j++)
557	{
558	for (i = 0; i < RT_ELEMENTS(s_aTests); i++)
559	{
560	Ctx.rax.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInAX;
561	Ctx.rdx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInDX;
562	Ctx.rbx.RT_CONCAT(u,ARCH_BITS) = s_aTests[i].uInBX;
563	Bs3TrapSetJmpAndRestore(&Ctx, &TrapFrame);
564
565	if ( TrapFrame.bXcpt != s_aTests[i].bXcpt
566	\|\| ( s_aTests[i].bXcpt == X86_XCPT_UD
567	? TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutAX
568	\|\| TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutDX
569	\|\| (TrapFrame.Ctx.rflags.u16 & IDIV_CHECK_EFLAGS) != (Ctx.rflags.u16 & IDIV_CHECK_EFLAGS)
570	: TrapFrame.Ctx.rax.u != Ctx.rax.u
571	\|\| TrapFrame.Ctx.rdx.u != Ctx.rdx.u
572	\|\| (TrapFrame.Ctx.rflags.u16 & IDIV_CHECK_EFLAGS) != (Ctx.rflags.u16 & IDIV_CHECK_EFLAGS) ) )
573	{
574	Bs3TestFailedF("test #%i failed: input %#" RTCCUINTREG_XFMT ":%" RTCCUINTREG_XFMT " / %#" RTCCUINTREG_XFMT,
575	i, s_aTests[i].uInDX, s_aTests[i].uInAX, s_aTests[i].uInBX);
576	if (TrapFrame.bXcpt != s_aTests[i].bXcpt)
577	Bs3TestFailedF("Expected bXcpt = %#x, got %#x", s_aTests[i].bXcpt, TrapFrame.bXcpt);
578	if (s_aTests[i].bXcpt == X86_XCPT_UD)
579	{
580	if (TrapFrame.Ctx.rax.RT_CONCAT(u, ARCH_BITS) != s_aTests[i].uOutAX)
581	Bs3TestFailedF("Expected xAX = %#" RTCCUINTREG_XFMT ", got %#" RTCCUINTREG_XFMT,
582	s_aTests[i].uOutAX, TrapFrame.Ctx.rax.RT_CONCAT(u,ARCH_BITS));
583	if (TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS) != s_aTests[i].uOutDX)
584	Bs3TestFailedF("Expected xDX = %#" RTCCUINTREG_XFMT ", got %#" RTCCUINTREG_XFMT,
585	s_aTests[i].uOutDX, TrapFrame.Ctx.rdx.RT_CONCAT(u,ARCH_BITS));
586	if ((TrapFrame.Ctx.rflags.u16 & IDIV_CHECK_EFLAGS) != (Ctx.rflags.u16 & IDIV_CHECK_EFLAGS))
587	Bs3TestFailedF("Expected EFLAGS = %#06RX16, got %#06RX16",
588	Ctx.rflags.u16 & IDIV_CHECK_EFLAGS, TrapFrame.Ctx.rflags.u16 & IDIV_CHECK_EFLAGS);
589	}
590	}
591	}
592	Ctx.rflags.u16 &= ~IDIV_CHECK_EFLAGS;
593	}
594
595	return 0;
596	}
597
598
599	# if ARCH_BITS == 64
600	BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_cmpxchg16b)(uint8_t bMode)
601	{
602	BS3REGCTX Ctx;
603	BS3REGCTX ExpectCtx;
604	BS3TRAPFRAME TrapFrame;
605	RTUINT128U au128[3];
606	PRTUINT128U pau128 = RT_ALIGN_PT(&au128[0], sizeof(RTUINT128U), PRTUINT128U);
607	bool const fSupportCX16 = RT_BOOL(ASMCpuId_ECX(1) & X86_CPUID_FEATURE_ECX_CX16);
608	unsigned iFlags;
609	unsigned offBuf;
610	unsigned iMatch;
611	unsigned iWorker;
612	static struct
613	{
614	bool fLocked;
615	uint8_t offUd2;
616	FNBS3FAR *pfnWorker;
617	} const s_aWorkers[] =
618	{
619	{ false, 4, BS3_CMN_NM(bs3CpuInstr2_cmpxchg16b_rdi_ud2) },
620	{ false, 5, BS3_CMN_NM(bs3CpuInstr2_o16_cmpxchg16b_rdi_ud2) },
621	{ false, 5, BS3_CMN_NM(bs3CpuInstr2_repz_cmpxchg16b_rdi_ud2) },
622	{ false, 5, BS3_CMN_NM(bs3CpuInstr2_repnz_cmpxchg16b_rdi_ud2) },
623	{ true, 1+4, BS3_CMN_NM(bs3CpuInstr2_lock_cmpxchg16b_rdi_ud2) },
624	{ true, 1+5, BS3_CMN_NM(bs3CpuInstr2_lock_o16_cmpxchg16b_rdi_ud2) },
625	{ true, 1+5, BS3_CMN_NM(bs3CpuInstr2_lock_repz_cmpxchg16b_rdi_ud2) },
626	{ true, 1+5, BS3_CMN_NM(bs3CpuInstr2_lock_repnz_cmpxchg16b_rdi_ud2) },
627	};
628
629	/* Ensure the structures are allocated before we sample the stack pointer. */
630	Bs3MemSet(&Ctx, 0, sizeof(Ctx));
631	Bs3MemSet(&ExpectCtx, 0, sizeof(ExpectCtx));
632	Bs3MemSet(&TrapFrame, 0, sizeof(TrapFrame));
633	Bs3MemSet(pau128, 0, sizeof(pau128[0]) * 2);
634
635	/*
636	* Create test context.
637	*/
638	Bs3RegCtxSaveEx(&Ctx, bMode, 512);
639	if (!fSupportCX16)
640	Bs3TestPrintf("Note! CMPXCHG16B is not supported by the CPU!\n");
641
642	/*
643	* One loop with the normal variant and one with the locked one
644	*/
645	g_usBs3TestStep = 0;
646	for (iWorker = 0; iWorker < RT_ELEMENTS(s_aWorkers); iWorker++)
647	{
648	Bs3RegCtxSetRipCsFromCurPtr(&Ctx, s_aWorkers[iWorker].pfnWorker);
649
650	/*
651	* One loop with all status flags set, and one with them clear.
652	*/
653	Ctx.rflags.u16 \|= X86_EFL_STATUS_BITS;
654	for (iFlags = 0; iFlags < 2; iFlags++)
655	{
656	Bs3MemCpy(&ExpectCtx, &Ctx, sizeof(ExpectCtx));
657
658	for (offBuf = 0; offBuf < sizeof(RTUINT128U); offBuf++)
659	{
660	# define CX16_OLD_LO UINT64_C(0xabb6345dcc9c4bbd)
661	# define CX16_OLD_HI UINT64_C(0x7b06ea35749549ab)
662	# define CX16_MISMATCH_LO UINT64_C(0xbace3e3590f18981)
663	# define CX16_MISMATCH_HI UINT64_C(0x9b385e8bfd5b4000)
664	# define CX16_STORE_LO UINT64_C(0x5cbd27d251f6559b)
665	# define CX16_STORE_HI UINT64_C(0x17ff434ed1b54963)
666
667	PRTUINT128U pBuf = (PRTUINT128U)&pau128->au8[offBuf];
668
669	ExpectCtx.rax.u = Ctx.rax.u = CX16_MISMATCH_LO;
670	ExpectCtx.rdx.u = Ctx.rdx.u = CX16_MISMATCH_HI;
671	for (iMatch = 0; iMatch < 2; iMatch++)
672	{
673	uint8_t bExpectXcpt;
674	pBuf->s.Lo = CX16_OLD_LO;
675	pBuf->s.Hi = CX16_OLD_HI;
676	ExpectCtx.rdi.u = Ctx.rdi.u = (uintptr_t)pBuf;
677	Bs3TrapSetJmpAndRestore(&Ctx, &TrapFrame);
678	g_usBs3TestStep++;
679	//Bs3TestPrintf("Test: iFlags=%d offBuf=%d iMatch=%u iWorker=%u\n", iFlags, offBuf, iMatch, iWorker);
680	bExpectXcpt = X86_XCPT_UD;
681	if (fSupportCX16)
682	{
683	if (offBuf & 15)
684	{
685	bExpectXcpt = X86_XCPT_GP;
686	ExpectCtx.rip.u = Ctx.rip.u;
687	ExpectCtx.rflags.u32 = Ctx.rflags.u32;
688	}
689	else
690	{
691	ExpectCtx.rax.u = CX16_OLD_LO;
692	ExpectCtx.rdx.u = CX16_OLD_HI;
693	if (iMatch & 1)
694	ExpectCtx.rflags.u32 = Ctx.rflags.u32 \| X86_EFL_ZF;
695	else
696	ExpectCtx.rflags.u32 = Ctx.rflags.u32 & ~X86_EFL_ZF;
697	ExpectCtx.rip.u = Ctx.rip.u + s_aWorkers[iWorker].offUd2;
698	}
699	ExpectCtx.rflags.u32 \|= X86_EFL_RF;
700	}
701	if ( !Bs3TestCheckRegCtxEx(&TrapFrame.Ctx, &ExpectCtx, 0 /cbPcAdjust/, 0 /cbSpAdjust/,
702	0 /fExtraEfl/, "lm64", 0 /idTestStep/)
703	\|\| TrapFrame.bXcpt != bExpectXcpt)
704	{
705	if (TrapFrame.bXcpt != bExpectXcpt)
706	Bs3TestFailedF("Expected bXcpt=#%x, got %#x (%#x)", bExpectXcpt, TrapFrame.bXcpt, TrapFrame.uErrCd);
707	Bs3TestFailedF("^^^ iWorker=%d iFlags=%d offBuf=%d iMatch=%u\n", iWorker, iFlags, offBuf, iMatch);
708	ASMHalt();
709	}
710
711	ExpectCtx.rax.u = Ctx.rax.u = CX16_OLD_LO;
712	ExpectCtx.rdx.u = Ctx.rdx.u = CX16_OLD_HI;
713	}
714	}
715	Ctx.rflags.u16 &= ~X86_EFL_STATUS_BITS;
716	}
717	}
718
719	return 0;
720	}
721
722
723	static void bs3CpuInstr2_fsgsbase_ExpectUD(uint8_t bMode, PBS3REGCTX pCtx, PBS3REGCTX pExpectCtx, PBS3TRAPFRAME pTrapFrame)
724	{
725	pCtx->rbx.u = 0;
726	Bs3MemCpy(pExpectCtx, pCtx, sizeof(*pExpectCtx));
727	Bs3TrapSetJmpAndRestore(pCtx, pTrapFrame);
728	pExpectCtx->rip.u = pCtx->rip.u;
729	pExpectCtx->rflags.u32 \|= X86_EFL_RF;
730	if ( !Bs3TestCheckRegCtxEx(&pTrapFrame->Ctx, pExpectCtx, 0 /cbPcAdjust/, 0 /cbSpAdjust/, 0 /fExtraEfl/, "lm64",
731	0 /idTestStep/)
732	\|\| pTrapFrame->bXcpt != X86_XCPT_UD)
733	{
734	Bs3TestFailedF("Expected #UD, got %#x (%#x)", pTrapFrame->bXcpt, pTrapFrame->uErrCd);
735	ASMHalt();
736	}
737	}
738
739
740	static bool bs3CpuInstr2_fsgsbase_VerifyWorker(uint8_t bMode, PBS3REGCTX pCtx, PBS3REGCTX pExpectCtx, PBS3TRAPFRAME pTrapFrame,
741	BS3CI2FSGSBASE const pFsGsBaseWorker, unsigned puIter)
742	{
743	bool fPassed = true;
744	unsigned iValue = 0;
745	static const struct
746	{
747	bool fGP;
748	uint64_t u64Base;
749	} s_aValues64[] =
750	{
751	{ false, UINT64_C(0x0000000000000000) },
752	{ false, UINT64_C(0x0000000000000001) },
753	{ false, UINT64_C(0x0000000000000010) },
754	{ false, UINT64_C(0x0000000000000123) },
755	{ false, UINT64_C(0x0000000000001234) },
756	{ false, UINT64_C(0x0000000000012345) },
757	{ false, UINT64_C(0x0000000000123456) },
758	{ false, UINT64_C(0x0000000001234567) },
759	{ false, UINT64_C(0x0000000012345678) },
760	{ false, UINT64_C(0x0000000123456789) },
761	{ false, UINT64_C(0x000000123456789a) },
762	{ false, UINT64_C(0x00000123456789ab) },
763	{ false, UINT64_C(0x0000123456789abc) },
764	{ false, UINT64_C(0x00007ffffeefefef) },
765	{ false, UINT64_C(0x00007fffffffffff) },
766	{ true, UINT64_C(0x0000800000000000) },
767	{ true, UINT64_C(0x0000800000000000) },
768	{ true, UINT64_C(0x0000800000000333) },
769	{ true, UINT64_C(0x0001000000000000) },
770	{ true, UINT64_C(0x0012000000000000) },
771	{ true, UINT64_C(0x0123000000000000) },
772	{ true, UINT64_C(0x1234000000000000) },
773	{ true, UINT64_C(0xffff300000000000) },
774	{ true, UINT64_C(0xffff7fffffffffff) },
775	{ true, UINT64_C(0xffff7fffffffffff) },
776	{ false, UINT64_C(0xffff800000000000) },
777	{ false, UINT64_C(0xffffffffffeefefe) },
778	{ false, UINT64_C(0xffffffffffffffff) },
779	{ false, UINT64_C(0xffffffffffffffff) },
780	{ false, UINT64_C(0x00000000efefefef) },
781	{ false, UINT64_C(0x0000000080204060) },
782	{ false, UINT64_C(0x00000000ddeeffaa) },
783	{ false, UINT64_C(0x00000000fdecdbca) },
784	{ false, UINT64_C(0x000000006098456b) },
785	{ false, UINT64_C(0x0000000098506099) },
786	{ false, UINT64_C(0x00000000206950bc) },
787	{ false, UINT64_C(0x000000009740395d) },
788	{ false, UINT64_C(0x0000000064a9455e) },
789	{ false, UINT64_C(0x00000000d20b6eff) },
790	{ false, UINT64_C(0x0000000085296d46) },
791	{ false, UINT64_C(0x0000000007000039) },
792	{ false, UINT64_C(0x000000000007fe00) },
793	};
794
795	Bs3RegCtxSetRipCsFromCurPtr(pCtx, pFsGsBaseWorker->pfnVerifyWorker);
796	if (pFsGsBaseWorker->f64BitOperand)
797	{
798	for (iValue = 0; iValue < RT_ELEMENTS(s_aValues64); iValue++)
799	{
800	bool const fGP = s_aValues64[iValue].fGP;
801
802	pCtx->rbx.u = s_aValues64[iValue].u64Base;
803	pCtx->rcx.u = 0;
804	pCtx->cr4.u \|= X86_CR4_FSGSBASE;
805	Bs3MemCpy(pExpectCtx, pCtx, sizeof(*pExpectCtx));
806	Bs3TrapSetJmpAndRestore(pCtx, pTrapFrame);
807	pExpectCtx->rip.u = pCtx->rip.u + (!fGP ? pFsGsBaseWorker->offVerifyWorkerUd2 : 0);
808	pExpectCtx->rbx.u = !fGP ? 0 : s_aValues64[iValue].u64Base;
809	pExpectCtx->rcx.u = !fGP ? s_aValues64[iValue].u64Base : 0;
810	pExpectCtx->rflags.u32 \|= X86_EFL_RF;
811	if ( !Bs3TestCheckRegCtxEx(&pTrapFrame->Ctx, pExpectCtx, 0 /cbPcAdjust/, 0 /cbSpAdjust/,
812	0 /fExtraEfl/, "lm64", 0 /idTestStep/)
813	\|\| (fGP && pTrapFrame->bXcpt != X86_XCPT_GP))
814	{
815	if (fGP && pTrapFrame->bXcpt != X86_XCPT_GP)
816	Bs3TestFailedF("Expected #GP, got %#x (%#x)", pTrapFrame->bXcpt, pTrapFrame->uErrCd);
817	fPassed = false;
818	break;
819	}
820	}
821	}
822	else
823	{
824	for (iValue = 0; iValue < RT_ELEMENTS(s_aValues64); iValue++)
825	{
826	pCtx->rbx.u = s_aValues64[iValue].u64Base;
827	pCtx->rcx.u = ~s_aValues64[iValue].u64Base;
828	pCtx->cr4.u \|= X86_CR4_FSGSBASE;
829	Bs3MemCpy(pExpectCtx, pCtx, sizeof(*pExpectCtx));
830	Bs3TrapSetJmpAndRestore(pCtx, pTrapFrame);
831	pExpectCtx->rip.u = pCtx->rip.u + pFsGsBaseWorker->offVerifyWorkerUd2;
832	pExpectCtx->rbx.u = 0;
833	pExpectCtx->rcx.u = s_aValues64[iValue].u64Base & UINT64_C(0x00000000ffffffff);
834	pExpectCtx->rflags.u32 \|= X86_EFL_RF;
835	if (!Bs3TestCheckRegCtxEx(&pTrapFrame->Ctx, pExpectCtx, 0 /cbPcAdjust/, 0 /cbSpAdjust/,
836	0 /fExtraEfl/, "lm64", 0 /idTestStep/))
837	{
838	fPassed = false;
839	break;
840	}
841	}
842	}
843
844	*puIter = iValue;
845	return fPassed;
846	}
847
848
849	static void bs3CpuInstr2_rdfsbase_rdgsbase_Common(uint8_t bMode, BS3CI2FSGSBASE const *paFsGsBaseWorkers,
850	unsigned cFsGsBaseWorkers, uint32_t idxFsGsBaseMsr)
851	{
852	BS3REGCTX Ctx;
853	BS3REGCTX ExpectCtx;
854	BS3TRAPFRAME TrapFrame;
855	unsigned iWorker;
856	unsigned iIter;
857	uint32_t uDummy;
858	uint32_t uStdExtFeatEbx;
859	bool fSupportsFsGsBase;
860
861	ASMCpuId_Idx_ECX(7, 0, &uDummy, &uStdExtFeatEbx, &uDummy, &uDummy);
862	fSupportsFsGsBase = RT_BOOL(uStdExtFeatEbx & X86_CPUID_STEXT_FEATURE_EBX_FSGSBASE);
863
864	/* Ensure the structures are allocated before we sample the stack pointer. */
865	Bs3MemSet(&Ctx, 0, sizeof(Ctx));
866	Bs3MemSet(&ExpectCtx, 0, sizeof(ExpectCtx));
867	Bs3MemSet(&TrapFrame, 0, sizeof(TrapFrame));
868
869	/*
870	* Create test context.
871	*/
872	Bs3RegCtxSaveEx(&Ctx, bMode, 512);
873
874	for (iWorker = 0; iWorker < cFsGsBaseWorkers; iWorker++)
875	{
876	Bs3RegCtxSetRipCsFromCurPtr(&Ctx, paFsGsBaseWorkers[iWorker].pfnWorker);
877	if (fSupportsFsGsBase)
878	{
879	uint64_t const uBaseAddr = ASMRdMsr(idxFsGsBaseMsr);
880
881	/* CR4.FSGSBASE disabled -> #UD. */
882	Ctx.cr4.u &= ~X86_CR4_FSGSBASE;
883	bs3CpuInstr2_fsgsbase_ExpectUD(bMode, &Ctx, &ExpectCtx, &TrapFrame);
884
885	/* Read and verify existing base address. */
886	Ctx.rbx.u = 0;
887	Ctx.cr4.u \|= X86_CR4_FSGSBASE;
888	Bs3MemCpy(&ExpectCtx, &Ctx, sizeof(ExpectCtx));
889	Bs3TrapSetJmpAndRestore(&Ctx, &TrapFrame);
890	ExpectCtx.rip.u = Ctx.rip.u + paFsGsBaseWorkers[iWorker].offWorkerUd2;
891	ExpectCtx.rbx.u = uBaseAddr;
892	ExpectCtx.rflags.u32 \|= X86_EFL_RF;
893	if (!Bs3TestCheckRegCtxEx(&TrapFrame.Ctx, &ExpectCtx, 0 /cbPcAdjust/, 0 /cbSpAdjust/, 0 /fExtraEfl/, "lm64",
894	0 /idTestStep/))
895	{
896	ASMHalt();
897	}
898
899	/* Write, read and verify series of base addresses. */
900	if (!bs3CpuInstr2_fsgsbase_VerifyWorker(bMode, &Ctx, &ExpectCtx, &TrapFrame, &paFsGsBaseWorkers[iWorker], &iIter))
901	{
902	Bs3TestFailedF("^^^ %s: iWorker=%u iIter=%u\n", paFsGsBaseWorkers[iWorker].pszDesc, iWorker, iIter);
903	ASMHalt();
904	}
905
906	/* Restore original base address. */
907	ASMWrMsr(idxFsGsBaseMsr, uBaseAddr);
908
909	/* Clean used GPRs. */
910	Ctx.rbx.u = 0;
911	Ctx.rcx.u = 0;
912	}
913	else
914	{
915	/* Unsupported by CPUID -> #UD. */
916	Bs3TestPrintf("Note! FSGSBASE is not supported by the CPU!\n");
917	bs3CpuInstr2_fsgsbase_ExpectUD(bMode, &Ctx, &ExpectCtx, &TrapFrame);
918	}
919	}
920	}
921
922
923	static void bs3CpuInstr2_wrfsbase_wrgsbase_Common(uint8_t bMode, BS3CI2FSGSBASE const *paFsGsBaseWorkers,
924	unsigned cFsGsBaseWorkers, uint32_t idxFsGsBaseMsr)
925	{
926	BS3REGCTX Ctx;
927	BS3REGCTX ExpectCtx;
928	BS3TRAPFRAME TrapFrame;
929	unsigned iWorker;
930	unsigned iIter;
931	uint32_t uDummy;
932	uint32_t uStdExtFeatEbx;
933	bool fSupportsFsGsBase;
934
935	ASMCpuId_Idx_ECX(7, 0, &uDummy, &uStdExtFeatEbx, &uDummy, &uDummy);
936	fSupportsFsGsBase = RT_BOOL(uStdExtFeatEbx & X86_CPUID_STEXT_FEATURE_EBX_FSGSBASE);
937
938	/* Ensure the structures are allocated before we sample the stack pointer. */
939	Bs3MemSet(&Ctx, 0, sizeof(Ctx));
940	Bs3MemSet(&ExpectCtx, 0, sizeof(ExpectCtx));
941	Bs3MemSet(&TrapFrame, 0, sizeof(TrapFrame));
942
943	/*
944	* Create test context.
945	*/
946	Bs3RegCtxSaveEx(&Ctx, bMode, 512);
947
948	for (iWorker = 0; iWorker < cFsGsBaseWorkers; iWorker++)
949	{
950	Bs3RegCtxSetRipCsFromCurPtr(&Ctx, paFsGsBaseWorkers[iWorker].pfnWorker);
951	if (fSupportsFsGsBase)
952	{
953	uint64_t const uBaseAddr = ASMRdMsr(idxFsGsBaseMsr);
954
955	/* CR4.FSGSBASE disabled -> #UD. */
956	Ctx.cr4.u &= ~X86_CR4_FSGSBASE;
957	bs3CpuInstr2_fsgsbase_ExpectUD(bMode, &Ctx, &ExpectCtx, &TrapFrame);
958
959	/* Write a base address. */
960	Ctx.rbx.u = 0xa0000;
961	Ctx.cr4.u \|= X86_CR4_FSGSBASE;
962	Bs3MemCpy(&ExpectCtx, &Ctx, sizeof(ExpectCtx));
963	Bs3TrapSetJmpAndRestore(&Ctx, &TrapFrame);
964	ExpectCtx.rip.u = Ctx.rip.u + paFsGsBaseWorkers[iWorker].offWorkerUd2;
965	ExpectCtx.rflags.u32 \|= X86_EFL_RF;
966	if (!Bs3TestCheckRegCtxEx(&TrapFrame.Ctx, &ExpectCtx, 0 /cbPcAdjust/, 0 /cbSpAdjust/, 0 /fExtraEfl/, "lm64",
967	0 /idTestStep/))
968	{
969	ASMHalt();
970	}
971
972	/* Write and read back series of base addresses. */
973	if (!bs3CpuInstr2_fsgsbase_VerifyWorker(bMode, &Ctx, &ExpectCtx, &TrapFrame, &paFsGsBaseWorkers[iWorker], &iIter))
974	{
975	Bs3TestFailedF("^^^ %s: iWorker=%u iIter=%u\n", paFsGsBaseWorkers[iWorker].pszDesc, iWorker, iIter);
976	ASMHalt();
977	}
978
979	/* Restore original base address. */
980	ASMWrMsr(idxFsGsBaseMsr, uBaseAddr);
981
982	/* Clean used GPRs. */
983	Ctx.rbx.u = 0;
984	Ctx.rcx.u = 0;
985	}
986	else
987	{
988	/* Unsupported by CPUID -> #UD. */
989	Bs3TestPrintf("Note! FSGSBASE is not supported by the CPU!\n");
990	bs3CpuInstr2_fsgsbase_ExpectUD(bMode, &Ctx, &ExpectCtx, &TrapFrame);
991	}
992	}
993	}
994
995
996	BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_wrfsbase)(uint8_t bMode)
997	{
998	bs3CpuInstr2_wrfsbase_wrgsbase_Common(bMode, s_aWrFsBaseWorkers, RT_ELEMENTS(s_aWrFsBaseWorkers), MSR_K8_FS_BASE);
999	return 0;
1000	}
1001
1002
1003	BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_wrgsbase)(uint8_t bMode)
1004	{
1005	bs3CpuInstr2_wrfsbase_wrgsbase_Common(bMode, s_aWrGsBaseWorkers, RT_ELEMENTS(s_aWrGsBaseWorkers), MSR_K8_GS_BASE);
1006	return 0;
1007	}
1008
1009
1010	BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_rdfsbase)(uint8_t bMode)
1011	{
1012	bs3CpuInstr2_rdfsbase_rdgsbase_Common(bMode, s_aRdFsBaseWorkers, RT_ELEMENTS(s_aRdFsBaseWorkers), MSR_K8_FS_BASE);
1013	return 0;
1014	}
1015
1016
1017	BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_rdgsbase)(uint8_t bMode)
1018	{
1019	bs3CpuInstr2_rdfsbase_rdgsbase_Common(bMode, s_aRdGsBaseWorkers, RT_ELEMENTS(s_aRdGsBaseWorkers), MSR_K8_GS_BASE);
1020	return 0;
1021	}
1022	# endif /* ARCH_BITS == 64 */
1023
1024
1025	#endif /* BS3_INSTANTIATING_CMN */
1026
1027
1028
1029	/*
1030	* Mode specific code.
1031	* Mode specific code.
1032	* Mode specific code.
1033	*/
1034	#ifdef BS3_INSTANTIATING_MODE
1035
1036
1037	#endif /* BS3_INSTANTIATING_MODE */
1038

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source: vbox/trunk/src/VBox/ValidationKit/bootsectors/bs3-cpu-instr-2-template.c@ 80360

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