DBGFReg.cpp@ 32740

Last change on this file since 32740 was 31491, checked in by vboxsync, 14 years ago
DBGF: Kick-off for DBGFR3Reg*. Implemented simple queried only. The debugger + MachineDebugger will use only this API later on.
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File size: 21.6 KB

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1	/* $Id: DBGFReg.cpp 31491 2010-08-09 16:13:37Z vboxsync $ */
2	/** @file
3	* DBGF - Debugger Facility, Register Methods.
4	*/
5
6	/*
7	* Copyright (C) 2010 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#define LOG_GROUP LOG_GROUP_DBGF
23	#include <VBox/dbgf.h>
24	#include "DBGFInternal.h"
25	#include <VBox/vm.h>
26	#include <VBox/param.h>
27	#include <VBox/err.h>
28	#include <VBox/log.h>
29
30
31	/*******************************************************************************
32	* Defined Constants And Macros *
33	*******************************************************************************/
34	/** @name Register and value sizes used by dbgfR3RegQueryWorker and
35	* dbgfR3RegSetWorker.
36	* @{ */
37	#define R_SZ_8 RT_BIT(0)
38	#define R_SZ_16 RT_BIT(1)
39	#define R_SZ_32 RT_BIT(2)
40	#define R_SZ_64 RT_BIT(3)
41	#define R_SZ_64_16 RT_BIT(4)
42	#define R_SZ_8_TO_64 (R_SZ_8 \| R_SZ_16 \| R_SZ_32 \| R_SZ_64)
43	#define R_SZ_16_TO_64 (R_SZ_16 \| R_SZ_32 \| R_SZ_64)
44	#define R_SZ_32_OR_64 (R_SZ_32 \| R_SZ_64)
45	/** @} */
46
47
48	/**
49	* Wrapper around CPUMQueryGuestMsr.
50	*
51	* @retval VINF_SUCCESS
52	* @retval VERR_DBGF_INVALID_REGISTER
53	*
54	* @param pVCpu The current CPU.
55	* @param pu64 Where to store the register value.
56	* @param pfRegSizes Where to store the register sizes.
57	* @param idMsr The MSR to get.
58	*/
59	static uint64_t dbgfR3RegGetMsr(PVMCPU pVCpu, uint64_t pu64, uint32_t pfRegSizes, uint32_t idMsr)
60	{
61	*pfRegSizes = R_SZ_64;
62	int rc = CPUMQueryGuestMsr(pVCpu, idMsr, pu64);
63	if (RT_FAILURE(rc))
64	{
65	AssertMsg(rc == VERR_CPUM_RAISE_GP_0, ("%Rrc\n", rc));
66	*pu64 = 0;
67	}
68	return VINF_SUCCESS;
69	}
70
71	/**
72	* Worker for DBGFR3RegQueryU8, DBGFR3RegQueryU16, DBGFR3RegQueryU32 and
73	* DBGFR3RegQueryU64.
74	*
75	* @param pVM The VM handle.
76	* @param idCpu The target CPU ID.
77	* @param enmReg The register that's being queried.
78	* @param pu64 Where to store the register value.
79	* @param pfRegSizes Where to store the register sizes.
80	*/
81	static DECLCALLBACK(int) dbgfR3RegQueryWorker(PVM pVM, VMCPUID idCpu, DBGFREG enmReg, uint64_t pu64, uint32_t pfRegSizes)
82	{
83	PVMCPU pVCpu = &pVM->aCpus[idCpu];
84	PCCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
85	switch (enmReg)
86	{
87	case DBGFREG_RAX: pu64 = pCtx->rax; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
88	case DBGFREG_RCX: pu64 = pCtx->rcx; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
89	case DBGFREG_RDX: pu64 = pCtx->rdx; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
90	case DBGFREG_RBX: pu64 = pCtx->rbx; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
91	case DBGFREG_RSP: pu64 = pCtx->rsp; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
92	case DBGFREG_RBP: pu64 = pCtx->rbp; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
93	case DBGFREG_RSI: pu64 = pCtx->rsi; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
94	case DBGFREG_RDI: pu64 = pCtx->rdi; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
95	case DBGFREG_R8: pu64 = pCtx->r8; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
96	case DBGFREG_R9: pu64 = pCtx->r9; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
97	case DBGFREG_R10: pu64 = pCtx->r10; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
98	case DBGFREG_R11: pu64 = pCtx->r11; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
99	case DBGFREG_R12: pu64 = pCtx->r12; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
100	case DBGFREG_R13: pu64 = pCtx->r13; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
101	case DBGFREG_R14: pu64 = pCtx->r14; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
102	case DBGFREG_R15: pu64 = pCtx->r15; pfRegSizes = R_SZ_8_TO_64; return VINF_SUCCESS;
103
104	case DBGFREG_AH: pu64 = RT_BYTE2(pCtx->ax); pfRegSizes = R_SZ_8; return VINF_SUCCESS;
105	case DBGFREG_CH: pu64 = RT_BYTE2(pCtx->cx); pfRegSizes = R_SZ_8; return VINF_SUCCESS;
106	case DBGFREG_DH: pu64 = RT_BYTE2(pCtx->dx); pfRegSizes = R_SZ_8; return VINF_SUCCESS;
107	case DBGFREG_BH: pu64 = RT_BYTE2(pCtx->bx); pfRegSizes = R_SZ_8; return VINF_SUCCESS;
108
109	case DBGFREG_CS: pu64 = pCtx->cs; pfRegSizes = R_SZ_16; return VINF_SUCCESS;
110	case DBGFREG_DS: pu64 = pCtx->ds; pfRegSizes = R_SZ_16; return VINF_SUCCESS;
111	case DBGFREG_ES: pu64 = pCtx->es; pfRegSizes = R_SZ_16; return VINF_SUCCESS;
112	case DBGFREG_FS: pu64 = pCtx->fs; pfRegSizes = R_SZ_16; return VINF_SUCCESS;
113	case DBGFREG_GS: pu64 = pCtx->gs; pfRegSizes = R_SZ_16; return VINF_SUCCESS;
114	case DBGFREG_SS: pu64 = pCtx->ss; pfRegSizes = R_SZ_16; return VINF_SUCCESS;
115
116	case DBGFREG_CS_ATTR: pu64 = pCtx->csHid.Attr.u; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
117	case DBGFREG_DS_ATTR: pu64 = pCtx->dsHid.Attr.u; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
118	case DBGFREG_ES_ATTR: pu64 = pCtx->esHid.Attr.u; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
119	case DBGFREG_FS_ATTR: pu64 = pCtx->fsHid.Attr.u; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
120	case DBGFREG_GS_ATTR: pu64 = pCtx->gsHid.Attr.u; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
121	case DBGFREG_SS_ATTR: pu64 = pCtx->ssHid.Attr.u; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
122
123	case DBGFREG_CS_BASE: pu64 = pCtx->csHid.u64Base; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
124	case DBGFREG_DS_BASE: pu64 = pCtx->dsHid.u64Base; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
125	case DBGFREG_ES_BASE: pu64 = pCtx->esHid.u64Base; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
126	case DBGFREG_FS_BASE: pu64 = pCtx->fsHid.u64Base; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
127	case DBGFREG_GS_BASE: pu64 = pCtx->gsHid.u64Base; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
128	case DBGFREG_SS_BASE: pu64 = pCtx->ssHid.u64Base; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
129
130	case DBGFREG_CS_LIMIT: pu64 = pCtx->csHid.u32Limit; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
131	case DBGFREG_DS_LIMIT: pu64 = pCtx->dsHid.u32Limit; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
132	case DBGFREG_ES_LIMIT: pu64 = pCtx->esHid.u32Limit; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
133	case DBGFREG_FS_LIMIT: pu64 = pCtx->fsHid.u32Limit; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
134	case DBGFREG_GS_LIMIT: pu64 = pCtx->gsHid.u32Limit; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
135	case DBGFREG_SS_LIMIT: pu64 = pCtx->ssHid.u32Limit; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
136
137	case DBGFREG_RIP: pu64 = pCtx->rip; pfRegSizes = R_SZ_16_TO_64; return VINF_SUCCESS;
138	case DBGFREG_FLAGS: pu64 = pCtx->rflags.u; pfRegSizes = R_SZ_16_TO_64; return VINF_SUCCESS;
139
140	case DBGFREG_ST0: return VERR_NOT_IMPLEMENTED;
141	case DBGFREG_ST1: return VERR_NOT_IMPLEMENTED;
142	case DBGFREG_ST2: return VERR_NOT_IMPLEMENTED;
143	case DBGFREG_ST3: return VERR_NOT_IMPLEMENTED;
144	case DBGFREG_ST4: return VERR_NOT_IMPLEMENTED;
145	case DBGFREG_ST5: return VERR_NOT_IMPLEMENTED;
146	case DBGFREG_ST6: return VERR_NOT_IMPLEMENTED;
147	case DBGFREG_ST7: return VERR_NOT_IMPLEMENTED;
148
149	case DBGFREG_MM0: return VERR_NOT_IMPLEMENTED;
150	case DBGFREG_MM1: return VERR_NOT_IMPLEMENTED;
151	case DBGFREG_MM2: return VERR_NOT_IMPLEMENTED;
152	case DBGFREG_MM3: return VERR_NOT_IMPLEMENTED;
153	case DBGFREG_MM4: return VERR_NOT_IMPLEMENTED;
154	case DBGFREG_MM5: return VERR_NOT_IMPLEMENTED;
155	case DBGFREG_MM6: return VERR_NOT_IMPLEMENTED;
156	case DBGFREG_MM7: return VERR_NOT_IMPLEMENTED;
157
158	case DBGFREG_FCW: return VERR_NOT_IMPLEMENTED;
159	case DBGFREG_FSW: return VERR_NOT_IMPLEMENTED;
160	case DBGFREG_FTW: return VERR_NOT_IMPLEMENTED;
161	case DBGFREG_FOP: return VERR_NOT_IMPLEMENTED;
162	case DBGFREG_FPUIP: return VERR_NOT_IMPLEMENTED;
163	case DBGFREG_FPUCS: return VERR_NOT_IMPLEMENTED;
164	case DBGFREG_FPUDP: return VERR_NOT_IMPLEMENTED;
165	case DBGFREG_FPUDS: return VERR_NOT_IMPLEMENTED;
166	case DBGFREG_MXCSR: return VERR_NOT_IMPLEMENTED;
167	case DBGFREG_MXCSR_MASK: return VERR_NOT_IMPLEMENTED;
168
169	case DBGFREG_XMM0: return VERR_NOT_IMPLEMENTED;
170	case DBGFREG_XMM1: return VERR_NOT_IMPLEMENTED;
171	case DBGFREG_XMM2: return VERR_NOT_IMPLEMENTED;
172	case DBGFREG_XMM3: return VERR_NOT_IMPLEMENTED;
173	case DBGFREG_XMM4: return VERR_NOT_IMPLEMENTED;
174	case DBGFREG_XMM5: return VERR_NOT_IMPLEMENTED;
175	case DBGFREG_XMM6: return VERR_NOT_IMPLEMENTED;
176	case DBGFREG_XMM7: return VERR_NOT_IMPLEMENTED;
177	case DBGFREG_XMM8: return VERR_NOT_IMPLEMENTED;
178	case DBGFREG_XMM9: return VERR_NOT_IMPLEMENTED;
179	case DBGFREG_XMM10: return VERR_NOT_IMPLEMENTED;
180	case DBGFREG_XMM11: return VERR_NOT_IMPLEMENTED;
181	case DBGFREG_XMM12: return VERR_NOT_IMPLEMENTED;
182	case DBGFREG_XMM13: return VERR_NOT_IMPLEMENTED;
183	case DBGFREG_XMM14: return VERR_NOT_IMPLEMENTED;
184	case DBGFREG_XMM15: return VERR_NOT_IMPLEMENTED;
185
186	case DBGFREG_GDTR: pu64 = pCtx->gdtr.pGdt; pfRegSizes = R_SZ_64_16; return VINF_SUCCESS;
187	case DBGFREG_GDTR_BASE: pu64 = pCtx->gdtr.pGdt; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
188	case DBGFREG_GDTR_LIMIT: pu64 = pCtx->gdtr.cbGdt; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
189	case DBGFREG_IDTR: pu64 = pCtx->idtr.pIdt; pfRegSizes = R_SZ_64_16; return VINF_SUCCESS;
190	case DBGFREG_IDTR_BASE: pu64 = pCtx->idtr.pIdt; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
191	case DBGFREG_IDTR_LIMIT: pu64 = pCtx->idtr.cbIdt; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
192	case DBGFREG_LDTR: pu64 = pCtx->ldtr; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
193	case DBGFREG_LDTR_ATTR: pu64 = pCtx->ldtrHid.Attr.u; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
194	case DBGFREG_LDTR_BASE: pu64 = pCtx->ldtrHid.u64Base; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
195	case DBGFREG_LDTR_LIMIT: pu64 = pCtx->ldtrHid.u32Limit; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
196	case DBGFREG_TR: pu64 = pCtx->tr; pfRegSizes = R_SZ_16; return VINF_SUCCESS;
197	case DBGFREG_TR_ATTR: pu64 = pCtx->trHid.Attr.u; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
198	case DBGFREG_TR_BASE: pu64 = pCtx->trHid.u64Base; pfRegSizes = R_SZ_64; return VINF_SUCCESS;
199	case DBGFREG_TR_LIMIT: pu64 = pCtx->trHid.u32Limit; pfRegSizes = R_SZ_32; return VINF_SUCCESS;
200
201	case DBGFREG_CR0: pu64 = CPUMGetGuestCR0(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
202	case DBGFREG_CR2: pu64 = CPUMGetGuestCR2(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
203	case DBGFREG_CR3: pu64 = CPUMGetGuestCR3(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
204	case DBGFREG_CR4: pu64 = CPUMGetGuestCR4(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
205	case DBGFREG_CR8: pu64 = CPUMGetGuestCR8(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
206
207	case DBGFREG_DR0: pu64 = CPUMGetGuestDR0(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
208	case DBGFREG_DR1: pu64 = CPUMGetGuestDR1(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
209	case DBGFREG_DR2: pu64 = CPUMGetGuestDR2(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
210	case DBGFREG_DR3: pu64 = CPUMGetGuestDR3(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
211	case DBGFREG_DR6: pu64 = CPUMGetGuestDR6(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
212	case DBGFREG_DR7: pu64 = CPUMGetGuestDR7(pVCpu); pfRegSizes = R_SZ_32_OR_64; return VINF_SUCCESS;
213
214	case DBGFREG_MSR_IA32_APICBASE: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_IA32_APICBASE);
215	case DBGFREG_MSR_IA32_CR_PAT: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_IA32_CR_PAT);
216	case DBGFREG_MSR_IA32_PERF_STATUS: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_IA32_PERF_STATUS);
217	case DBGFREG_MSR_IA32_SYSENTER_CS: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_IA32_SYSENTER_CS);
218	case DBGFREG_MSR_IA32_SYSENTER_EIP: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_IA32_SYSENTER_EIP);
219	case DBGFREG_MSR_IA32_SYSENTER_ESP: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_IA32_SYSENTER_ESP);
220	case DBGFREG_MSR_IA32_TSC: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_IA32_TSC);
221	case DBGFREG_MSR_K6_EFER: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_K6_EFER);
222	case DBGFREG_MSR_K6_STAR: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_K6_STAR);
223	case DBGFREG_MSR_K8_CSTAR: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_K8_CSTAR);
224	case DBGFREG_MSR_K8_FS_BASE: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_K8_FS_BASE);
225	case DBGFREG_MSR_K8_GS_BASE: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_K8_GS_BASE);
226	case DBGFREG_MSR_K8_KERNEL_GS_BASE: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_K8_KERNEL_GS_BASE);
227	case DBGFREG_MSR_K8_LSTAR: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_K8_LSTAR);
228	case DBGFREG_MSR_K8_SF_MASK: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_K8_SF_MASK);
229	case DBGFREG_MSR_K8_TSC_AUX: return dbgfR3RegGetMsr(pVCpu, pu64, pfRegSizes, MSR_K8_TSC_AUX);
230
231	case DBGFREG_END:
232	case DBGFREG_32BIT_HACK:
233	/* no default! We want GCC warnings. */
234	break;
235	}
236
237	AssertMsgFailed(("%d (%#x)\n", enmReg, enmReg));
238	return VERR_DBGF_INVALID_REGISTER;
239	}
240
241
242	/**
243	* Queries a 8-bit register value.
244	*
245	* @retval VINF_SUCCESS
246	* @retval VERR_INVALID_VM_HANDLE
247	* @retval VERR_INVALID_CPU_ID
248	* @retval VERR_DBGF_INVALID_REGISTER
249	* @retval VINF_DBGF_TRUNCATED_REGISTER
250	*
251	* @param pVM The VM handle.
252	* @param idCpu The target CPU ID.
253	* @param enmReg The register that's being queried.
254	* @param pu8 Where to store the register value.
255	*/
256	VMMR3DECL(int) DBGFR3RegQueryU8(PVM pVM, VMCPUID idCpu, DBGFREG enmReg, uint8_t *pu8)
257	{
258	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
259	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
260
261	uint64_t u64Value;
262	uint32_t fRegSizes;
263	int rc = VMR3ReqCallWait(pVM, idCpu, (PFNRT)dbgfR3RegQueryWorker, 5, pVM, idCpu, enmReg, &u64Value, &fRegSizes);
264	if (RT_SUCCESS(rc))
265	{
266	*pu8 = (uint8_t)u64Value;
267	if (R_SZ_8 & fRegSizes)
268	rc = VINF_SUCCESS;
269	else
270	rc = VINF_DBGF_TRUNCATED_REGISTER;
271	}
272	else
273	*pu8 = 0;
274	return rc;
275	}
276
277
278	/**
279	* Queries a 16-bit register value.
280	*
281	* @retval VINF_SUCCESS
282	* @retval VERR_INVALID_VM_HANDLE
283	* @retval VERR_INVALID_CPU_ID
284	* @retval VERR_DBGF_INVALID_REGISTER
285	* @retval VINF_DBGF_TRUNCATED_REGISTER
286	* @retval VINF_DBGF_ZERO_EXTENDED_REGISTER
287	*
288	* @param pVM The VM handle.
289	* @param idCpu The target CPU ID.
290	* @param enmReg The register that's being queried.
291	* @param pu16 Where to store the register value.
292	*/
293	VMMR3DECL(int) DBGFR3RegQueryU16(PVM pVM, VMCPUID idCpu, DBGFREG enmReg, uint16_t *pu16)
294	{
295	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
296	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
297
298	uint64_t u64Value;
299	uint32_t fRegSizes;
300	int rc = VMR3ReqCallWait(pVM, idCpu, (PFNRT)dbgfR3RegQueryWorker, 5, pVM, idCpu, enmReg, &u64Value, &fRegSizes);
301	if (RT_SUCCESS(rc))
302	{
303	*pu16 = (uint16_t)u64Value;
304	if (R_SZ_16 & fRegSizes)
305	rc = VINF_SUCCESS;
306	else if (~(R_SZ_8 \| R_SZ_16) & fRegSizes)
307	rc = VINF_DBGF_TRUNCATED_REGISTER;
308	else
309	rc = VINF_DBGF_ZERO_EXTENDED_REGISTER;
310	}
311	else
312	*pu16 = 0;
313	return rc;
314	}
315
316
317	/**
318	* Queries a 32-bit register value.
319	*
320	* @retval VINF_SUCCESS
321	* @retval VERR_INVALID_VM_HANDLE
322	* @retval VERR_INVALID_CPU_ID
323	* @retval VERR_DBGF_INVALID_REGISTER
324	* @retval VINF_DBGF_TRUNCATED_REGISTER
325	* @retval VINF_DBGF_ZERO_EXTENDED_REGISTER
326	*
327	* @param pVM The VM handle.
328	* @param idCpu The target CPU ID.
329	* @param enmReg The register that's being queried.
330	* @param pu32 Where to store the register value.
331	*/
332	VMMR3DECL(int) DBGFR3RegQueryU32(PVM pVM, VMCPUID idCpu, DBGFREG enmReg, uint32_t *pu32)
333	{
334	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
335	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
336
337	uint64_t u64Value;
338	uint32_t fRegSizes;
339	int rc = VMR3ReqCallWait(pVM, idCpu, (PFNRT)dbgfR3RegQueryWorker, 5, pVM, idCpu, enmReg, &u64Value, &fRegSizes);
340	if (RT_SUCCESS(rc))
341	{
342	*pu32 = (uint32_t)u64Value;
343	if (R_SZ_32 & fRegSizes)
344	rc = VINF_SUCCESS;
345	else if (~(R_SZ_8 \| R_SZ_16 \| R_SZ_32) & fRegSizes)
346	rc = VINF_DBGF_TRUNCATED_REGISTER;
347	else
348	rc = VINF_DBGF_ZERO_EXTENDED_REGISTER;
349	}
350	else
351	*pu32 = 0;
352	return rc;
353	}
354
355
356	/**
357	* Queries a 64-bit register value.
358	*
359	* @retval VINF_SUCCESS
360	* @retval VERR_INVALID_VM_HANDLE
361	* @retval VERR_INVALID_CPU_ID
362	* @retval VERR_DBGF_INVALID_REGISTER
363	* @retval VINF_DBGF_TRUNCATED_REGISTER
364	* @retval VINF_DBGF_ZERO_EXTENDED_REGISTER
365	*
366	* @param pVM The VM handle.
367	* @param idCpu The target CPU ID.
368	* @param enmReg The register that's being queried.
369	* @param pu64 Where to store the register value.
370	*/
371	VMMR3DECL(int) DBGFR3RegQueryU64(PVM pVM, VMCPUID idCpu, DBGFREG enmReg, uint64_t *pu64)
372	{
373	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
374	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
375
376	uint64_t u64Value;
377	uint32_t fRegSizes;
378	int rc = VMR3ReqCallWait(pVM, idCpu, (PFNRT)dbgfR3RegQueryWorker, 5, pVM, idCpu, enmReg, &u64Value, &fRegSizes);
379	if (RT_SUCCESS(rc))
380	{
381	*pu64 = u64Value;
382	if (R_SZ_64 & fRegSizes)
383	rc = VINF_SUCCESS;
384	else if (~(R_SZ_8 \| R_SZ_16 \| R_SZ_32 \| R_SZ_64) & fRegSizes)
385	rc = VINF_DBGF_TRUNCATED_REGISTER;
386	else
387	rc = VINF_DBGF_ZERO_EXTENDED_REGISTER;
388	}
389	else
390	*pu64 = 0;
391	return rc;
392	}
393

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source: vbox/trunk/src/VBox/VMM/DBGFReg.cpp@ 32740

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