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1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * The contents of this file constitute Original Code as defined in and
7 * are subject to the Apple Public Source License Version 1.1 (the
8 * "License"). You may not use this file except in compliance with the
9 * License. Please obtain a copy of the License at
10 * http://www.apple.com/publicsource and read it before using this file.
11 *
12 * This Original Code and all software distributed under the License are
13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17 * License for the specific language governing rights and limitations
18 * under the License.
19 *
20 * @APPLE_LICENSE_HEADER_END@
21 */
22/*-----------------------------------------------------------------------
23** vmachmon.h
24**
25** C routines that we are adding to the MacOS X kernel.
26**
27** Wierd Apple PSL stuff goes here...
28**
29** Until then, Copyright 2000, Connectix
30**
31-----------------------------------------------------------------------*/
32
33#include <ppc/exception.h>
34
35#ifndef _VEMULATION_H_
36#define _VEMULATION_H_
37
38/*************************************************************************************
39 External Emulation Types
40**************************************************************************************/
41
42typedef union vmm_vector_register_t {
43 unsigned long i[4];
44 unsigned short s[8];
45 unsigned char b[16];
46} vmm_vector_register_t;
47
48typedef union vmm_fp_register_t {
49 double d;
50 unsigned long i[2];
51 unsigned short s[4];
52 unsigned char b[8];
53} vmm_fp_register_t;
54
55typedef struct vmm_processor_state_t {
56/*
57 * NOTE: The general context needs to correspond to the order of the savearea for quick swaps
58 */
59 unsigned long ppcPC;
60 unsigned long ppcMSR;
61
62 unsigned long ppcGPRs[32];
63
64 unsigned long ppcCR;
65 unsigned long ppcXER;
66 unsigned long ppcLR;
67 unsigned long ppcCTR;
68 unsigned long ppcMQ; /* Obsolete */
69 unsigned long ppcVRSave;
70 unsigned long ppcReserved1[40]; /* Future processor state can go here */
71
72/* We must be 16-byte aligned here */
73
74 vmm_vector_register_t ppcVRs[32];
75 vmm_vector_register_t ppcVSCR;
76
77/* We must be 8-byte aligned here */
78
79 vmm_fp_register_t ppcFPRs[32];
80 vmm_fp_register_t ppcFPSCR;
81 unsigned long ppcReserved2[2]; /* Pad out to multiple of 16 bytes */
82} vmm_processor_state_t;
83
84typedef unsigned long vmm_return_code_t;
85
86typedef unsigned long vmm_thread_index_t;
87enum {
88 kVmmCurrentVersion = 0x00010000
89};
90
91typedef unsigned long vmm_features_t;
92enum {
93 kVmmFeature_LittleEndian = 0x00000001
94};
95
96typedef unsigned long vmm_version_t;
97
98typedef struct vmm_state_page_t {
99 /* This structure must remain below 4Kb (one page) in size */
100 vmm_version_t interface_version;
101 vmm_thread_index_t thread_index;
102 unsigned int vmmStat; /* Note: this field is identical to vmmFlags in vmmCntrlEntry */
103 unsigned int vmmCntrl;
104#define vmmFloatLoad 0x80000000
105#define vmmFloatLoadb 0
106#define vmmVectLoad 0x40000000
107#define vmmVectLoadb 1
108#define vmmVectVRall 0x20000000
109#define vmmVectVRallb 2
110#define vmmVectVAss 0x10000000
111#define vmmVectVAssb 3
112 vmm_return_code_t return_code;
113 unsigned long return_params[4];
114 unsigned long gas[7]; /* For alignment */
115
116 /* The next portion of the structure must remain 32-byte aligned */
117 vmm_processor_state_t vmm_proc_state;
118
119} vmm_state_page_t;
120
121enum {
122 /* Function Indices (passed in r3) */
123 kVmmGetVersion = 0,
124 kVmmvGetFeatures,
125 kVmmInitContext,
126 kVmmTearDownContext,
127 kVmmTearDownAll,
128 kVmmMapPage,
129 kVmmGetPageMapping,
130 kVmmUnmapPage,
131 kVmmUnmapAllPages,
132 kVmmGetPageDirtyFlag,
133 kVmmGetFloatState,
134 kVmmGetVectorState,
135 kVmmSetTimer,
136 kVmmGetTimer,
137 kVmmExecuteVM
138};
139
140#define kVmmReturnNull 0
141#define kVmmBogusContext 1
142#define kVmmReturnDataPageFault 3
143#define kVmmReturnInstrPageFault 4
144#define kVmmReturnAlignmentFault 6
145#define kVmmReturnProgramException 7
146#define kVmmReturnSystemCall 12
147#define kVmmReturnTraceException 13
148#define kVmmAltivecAssist 22
149
150
151/*************************************************************************************
152 Internal Emulation Types
153**************************************************************************************/
154
155#define kVmmMaxContextsPerThread 32
156
157enum {
158 kVmmCurrentFeatures = kVmmFeature_LittleEndian
159};
160
161typedef struct vmmCntrlEntry { /* Virtual Machine Monitor control table entry */
162 unsigned int vmmFlags; /* Assorted control flags */
163#define vmmInUse 0x80000000
164#define vmmInUseb 0
165#define vmmFloatCngd 0x40000000
166#define vmmFloatCngdb 1
167#define vmmVectCngd 0x20000000
168#define vmmVectCngdb 2
169#define vmmTimerPop 0x10000000
170#define vmmTimerPopb 3
171#define vmmMapDone 0x08000000
172#define vmmMapDoneb 4
173#define vmmSpfSave 0x000000FF
174#define vmmSpfSaveb 24
175 pmap_t vmmPmap; /* pmap for alternate context's view of task memory */
176 vmm_state_page_t *vmmContextKern; /* Kernel address of context communications area */
177 vmm_state_page_t *vmmContextUser; /* User address of context communications area */
178 pcb_t vmmFPU_pcb; /* Saved floating point context */
179 unsigned int vmmFPU_cpu; /* CPU saved fp context is valid on */
180 pcb_t vmmVMX_pcb; /* Saved vector context */
181 unsigned int vmmVMX_cpu; /* CPU saved vector context is valid on */
182 AbsoluteTime vmmTimer; /* Last set timer value. Zero means unset */
183 vm_offset_t vmmLastMap; /* Last vaddr mapping into virtual machine */
184} vmmCntrlEntry;
185
186typedef struct vmmCntrlTable { /* Virtual Machine Monitor Control table */
187 vmmCntrlEntry vmmc[kVmmMaxContextsPerThread]; /* One entry for each possible Virtual Machine Monitor context */
188} vmmCntrlTable;
189
190/* function decls for kernel level routines... */
191extern vmmCntrlEntry *vmm_get_entry(thread_act_t act, vmm_thread_index_t index);
192extern kern_return_t vmm_tear_down_context(thread_act_t act, vmm_thread_index_t index);
193extern kern_return_t vmm_get_float_state(thread_act_t act, vmm_thread_index_t index);
194extern kern_return_t vmm_get_vector_state(thread_act_t act, vmm_thread_index_t index);
195extern kern_return_t vmm_set_timer(thread_act_t act, vmm_thread_index_t index, unsigned int timerhi, unsigned int timerlo);
196extern kern_return_t vmm_get_timer(thread_act_t act, vmm_thread_index_t index);
197extern void vmm_tear_down_all(thread_act_t act);
198extern kern_return_t vmm_map_page(thread_act_t act, vmm_thread_index_t hindex, vm_offset_t cva,
199 vm_offset_t ava, vm_prot_t prot);
200extern vm_offset_t vmm_get_page_mapping(thread_act_t act, vmm_thread_index_t index,
201 vm_offset_t va);
202extern kern_return_t vmm_unmap_page(thread_act_t act, vmm_thread_index_t index, vm_offset_t va);
203extern void vmm_unmap_all_pages(thread_act_t act, vmm_thread_index_t index);
204extern boolean_t vmm_get_page_dirty_flag(thread_act_t act, vmm_thread_index_t index,
205 vm_offset_t va, unsigned int reset);
206extern int vmm_get_features(struct savearea *);
207extern int vmm_get_version(struct savearea *);
208extern int vmm_init_context(struct savearea *);
209extern int vmm_dispatch(struct savearea *);
210extern int vmm_exit(thread_act_t act, struct savearea *);
211extern void vmm_force_exit(thread_act_t act, struct savearea *);
212void vmm_timer_pop(thread_act_t act);
213
214#endif
215
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