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197
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1 #include "../../context.h"
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195
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2 #interface "vm.h"
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3
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4 // ----
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5 // typedef struct vm_impl<Impl, Isa> impl vm{
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204
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6 // union Data* vm_impl;
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200
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7 // uint i;
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204
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8 // pte_t* pte;
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9 // uint sz;
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195
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10 //
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200
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11 // __code loaduvm_ptesize_check(Type* vm_impl, __code next(...));
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204
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12 // __code loaduvm_loop(Type* vm_impl, uint i, pte_t* pte, uint sz, __code next(...));
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200
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13 // __code next(...);
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195
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14 //
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15 //
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16 // } vm_impl;
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17 // ----
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18
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19 vm* createvm_impl(struct Context* cbc_context) {
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20 struct vm* vm = new vm();
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21 struct vm_impl* vm_impl = new vm_impl();
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22 vm->vm = (union Data*)vm_impl;
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204
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23 vm_impl->vm_impl = NULL;
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200
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24 vm_impl->i = 0;
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204
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25 vm_impl->pte = NULL;
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26 vm_impl->sz = 0;
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27 vm_impl->loaduvm_ptesize_check = C_loaduvm_ptesize_checkvm_impl;
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28 vm_impl->loaduvm_loop = C_loaduvm_loopvm_impl;
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214
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29 vm_impl->allocuvm_check_newsz = C_allocuvm_check_newszvm_impl;
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30 vm_impl->allocuvm_loop = C_allocuvm_loopvm_impl;
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195
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31 vm->init_vmm = C_init_vmmvm_impl;
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32 vm->kpt_freerange = C_kpt_freerangevm_impl;
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33 vm->kpt_alloc = C_kpt_allocvm_impl;
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34 vm->switchuvm = C_switchuvmvm_impl;
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35 vm->init_inituvm = C_init_inituvmvm_impl;
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36 vm->loaduvm = C_loaduvmvm_impl;
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37 vm->allocuvm = C_allocuvmvm_impl;
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38 vm->clearpteu = C_clearpteuvm_impl;
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39 vm->copyuvm = C_copyuvmvm_impl;
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40 vm->uva2ka = C_uva2kavm_impl;
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41 vm->copyout = C_copyoutvm_impl;
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42 vm->pagind_int = C_pagind_intvm_impl;
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43 return vm;
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44 }
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45
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209
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46 extern struct {
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47 struct spinlock lock;
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48 struct run *freelist;
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49 } kpt_mem;
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195
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50
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51 __code init_vmmvm_impl(struct vm_impl* vm, __code next(...)) {
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209
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52 initlock(&kpt_mem.lock, "vm");
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53 kpt_mem.freelist = NULL;
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54
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195
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55 goto next(...);
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56 }
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57
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211
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58 extern struct run {
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59 struct run *next;
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60 };
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195
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61
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211
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62 static void _kpt_free (char *v)
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63 {
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64 struct run *r;
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65
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66 r = (struct run*) v;
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67 r->next = kpt_mem.freelist;
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68 kpt_mem.freelist = r;
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195
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69 }
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70
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211
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71 __code kpt_freerangevm_impl(struct vm_impl* vm, uint low, uint hi, __code next(...)) {
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72
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73 if (low < hi) {
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74 _kpt_free((char*)low);
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75 goto kpt_freerangevm_impl(vm, low + PT_SZ, hi, next(...));
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76
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77 }
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78 goto next(...);
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79 }
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80 __code kpt_allocvm_impl(struct vm_impl* vm, __code next(...)) {
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81 acquire(&kpt_mem.lock);
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195
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82
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212
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83 goto kpt_alloc_check_impl(vm_impl, next(...));
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211
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84
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85 goto next(...);
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195
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86 }
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87
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200
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88 typedef struct proc proc;
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214
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89 __code switchuvmvm_impl(struct vm_impl* vm , struct proc* p, __code next(...)) { //:skip
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195
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90
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91 goto next(...);
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92 }
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93
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200
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94 __code init_inituvmvm_impl(struct vm_impl* vm, pde_t* pgdir, char* init, uint sz, __code next(...)) { //:skip
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195
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95
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96 goto next(...);
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97 }
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98
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205
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99 __code loaduvmvm_impl(struct vm_impl* vm, pde_t* pgdir, char* addr, struct inode* ip, uint offset, uint sz, __code next(...)) {
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100 vm->pgdir = pgdir;
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101 vm->addr = addr;
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102 vm->ip = ip;
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103 vm->offset = offset;
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104 vm->sz = sz;
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105
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106 goto loaduvm_ptesize_checkvm_impl(vm, next);
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195
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107 }
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108
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200
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109 __code allocuvmvm_impl(struct vm_impl* vm, pde_t* pgdir, uint oldsz, uint newsz, __code next(...)) {
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195
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110
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214
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111 goto allocuvm_check_newszvm_impl(vm, pgdir, oldsz, newsz, next(...));
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195
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112 }
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113
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114 __code clearpteuvm_impl(struct vm_impl* vm, pde_t* pgdir, char* uva, __code next(...)) {
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115
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216
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116 goto clearpteu_check_ptevm_impl(vm, pgdir, uva, next(...);
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195
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117 }
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118
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200
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119 __code copyuvmvm_impl(struct vm_impl* vm, pde_t* pgdir, uint sz, __code next(...)) {
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195
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120
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121 goto next(...);
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122 }
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123
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124 __code uva2kavm_impl(struct vm_impl* vm, pde_t* pgdir, char* uva, __code next(...)) {
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125
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126 goto next(...);
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127 }
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128
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200
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129 __code copyoutvm_impl(struct vm_impl* vm, pde_t* pgdir, uint va, void* pp, uint len, __code next(...)) {
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195
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130
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131 goto next(...);
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132 }
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133
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200
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134 __code pagind_intvm_impl(struct vm_impl* vm, uint phy_low, uint phy_hi, __code next(...)) {
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195
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135
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136 goto next(...);
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137 }
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138
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