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1813 | decky | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2006 Martin Decky |
1813 | decky | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1952 | jermar | 29 | #ifndef KERN_ia32xen_HYPERCALL_H_ |
30 | #define KERN_ia32xen_HYPERCALL_H_ |
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1813 | decky | 31 | |
32 | #include <arch/types.h> |
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1816 | decky | 33 | #include <macros.h> |
1813 | decky | 34 | |
1817 | decky | 35 | typedef uint16_t domid_t; |
36 | |||
1829 | decky | 37 | typedef struct { |
38 | uint8_t vector; /**< Exception vector */ |
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39 | uint8_t flags; /**< 0-3: privilege level; 4: clear event enable */ |
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40 | uint16_t cs; /**< Code selector */ |
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1831 | decky | 41 | void *address; /**< Code offset */ |
1829 | decky | 42 | } trap_info_t; |
43 | |||
44 | |||
1831 | decky | 45 | typedef struct { |
46 | evtchn_t port; |
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47 | } evtchn_send_t; |
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48 | |||
49 | typedef struct { |
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50 | uint32_t cmd; |
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51 | union { |
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52 | evtchn_send_t send; |
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53 | }; |
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54 | } evtchn_op_t; |
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55 | |||
56 | |||
1829 | decky | 57 | #define XEN_SET_TRAP_TABLE 0 |
1824 | decky | 58 | #define XEN_MMU_UPDATE 1 |
1829 | decky | 59 | #define XEN_SET_CALLBACKS 4 |
1824 | decky | 60 | #define XEN_UPDATE_VA_MAPPING 14 |
1831 | decky | 61 | #define XEN_EVENT_CHANNEL_OP 16 |
1830 | decky | 62 | #define XEN_VERSION 17 |
1824 | decky | 63 | #define XEN_CONSOLE_IO 18 |
64 | #define XEN_MMUEXT_OP 26 |
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1817 | decky | 65 | |
66 | |||
1816 | decky | 67 | /* |
68 | * Commands for XEN_CONSOLE_IO |
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69 | */ |
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70 | #define CONSOLE_IO_WRITE 0 |
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71 | #define CONSOLE_IO_READ 1 |
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72 | |||
73 | |||
1817 | decky | 74 | #define MMUEXT_PIN_L1_TABLE 0 |
75 | #define MMUEXT_PIN_L2_TABLE 1 |
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76 | #define MMUEXT_PIN_L3_TABLE 2 |
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77 | #define MMUEXT_PIN_L4_TABLE 3 |
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78 | #define MMUEXT_UNPIN_TABLE 4 |
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79 | #define MMUEXT_NEW_BASEPTR 5 |
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80 | #define MMUEXT_TLB_FLUSH_LOCAL 6 |
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81 | #define MMUEXT_INVLPG_LOCAL 7 |
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82 | #define MMUEXT_TLB_FLUSH_MULTI 8 |
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83 | #define MMUEXT_INVLPG_MULTI 9 |
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84 | #define MMUEXT_TLB_FLUSH_ALL 10 |
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85 | #define MMUEXT_INVLPG_ALL 11 |
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86 | #define MMUEXT_FLUSH_CACHE 12 |
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87 | #define MMUEXT_SET_LDT 13 |
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88 | #define MMUEXT_NEW_USER_BASEPTR 15 |
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89 | |||
90 | |||
1831 | decky | 91 | #define EVTCHNOP_SEND 4 |
92 | |||
93 | |||
1824 | decky | 94 | #define UVMF_NONE 0 /**< No flushing at all */ |
95 | #define UVMF_TLB_FLUSH 1 /**< Flush entire TLB(s) */ |
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96 | #define UVMF_INVLPG 2 /**< Flush only one entry */ |
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97 | #define UVMF_FLUSHTYPE_MASK 3 |
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98 | #define UVMF_MULTI 0 /**< Flush subset of TLBs */ |
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99 | #define UVMF_LOCAL 0 /**< Flush local TLB */ |
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100 | #define UVMF_ALL (1 << 2) /**< Flush all TLBs */ |
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101 | |||
102 | |||
1817 | decky | 103 | #define DOMID_SELF (0x7FF0U) |
104 | #define DOMID_IO (0x7FF1U) |
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105 | |||
106 | |||
1830 | decky | 107 | #define force_evtchn_callback() ((void) xen_version(0, 0)) |
108 | |||
1813 | decky | 109 | #define hypercall0(id) \ |
110 | ({ \ |
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111 | unative_t ret; \ |
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112 | asm volatile ( \ |
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113 | "call hypercall_page + (" STRING(id) " * 32)\n" \ |
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114 | : "=a" (ret) \ |
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115 | : \ |
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116 | : "memory" \ |
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117 | ); \ |
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118 | ret; \ |
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119 | }) |
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120 | |||
121 | #define hypercall1(id, p1) \ |
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122 | ({ \ |
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123 | unative_t ret, __ign1; \ |
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124 | asm volatile ( \ |
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125 | "call hypercall_page + (" STRING(id) " * 32)\n" \ |
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126 | : "=a" (ret), \ |
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127 | "=b" (__ign1) \ |
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128 | : "1" (p1) \ |
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129 | : "memory" \ |
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130 | ); \ |
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131 | ret; \ |
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132 | }) |
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133 | |||
134 | #define hypercall2(id, p1, p2) \ |
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135 | ({ \ |
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136 | unative_t ret, __ign1, __ign2; \ |
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137 | asm volatile ( \ |
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138 | "call hypercall_page + (" STRING(id) " * 32)\n" \ |
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139 | : "=a" (ret), \ |
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140 | "=b" (__ign1), \ |
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141 | "=c" (__ign2) \ |
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142 | : "1" (p1), \ |
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143 | "2" (p2) \ |
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144 | : "memory" \ |
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145 | ); \ |
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146 | ret; \ |
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147 | }) |
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148 | |||
149 | #define hypercall3(id, p1, p2, p3) \ |
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150 | ({ \ |
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151 | unative_t ret, __ign1, __ign2, __ign3; \ |
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152 | asm volatile ( \ |
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153 | "call hypercall_page + (" STRING(id) " * 32)\n" \ |
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154 | : "=a" (ret), \ |
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155 | "=b" (__ign1), \ |
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156 | "=c" (__ign2), \ |
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157 | "=d" (__ign3) \ |
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158 | : "1" (p1), \ |
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159 | "2" (p2), \ |
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1816 | decky | 160 | "3" (p3) \ |
1813 | decky | 161 | : "memory" \ |
162 | ); \ |
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163 | ret; \ |
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164 | }) |
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165 | |||
166 | #define hypercall4(id, p1, p2, p3, p4) \ |
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167 | ({ \ |
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168 | unative_t ret, __ign1, __ign2, __ign3, __ign4; \ |
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169 | asm volatile ( \ |
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170 | "call hypercall_page + (" STRING(id) " * 32)\n" \ |
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171 | : "=a" (ret), \ |
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172 | "=b" (__ign1), \ |
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173 | "=c" (__ign2), \ |
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174 | "=d" (__ign3), \ |
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175 | "=S" (__ign4) \ |
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176 | : "1" (p1), \ |
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177 | "2" (p2), \ |
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178 | "3" (p3), \ |
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1816 | decky | 179 | "4" (p4) \ |
1813 | decky | 180 | : "memory" \ |
181 | ); \ |
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182 | ret; \ |
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183 | }) |
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184 | |||
185 | #define hypercall5(id, p1, p2, p3, p4, p5) \ |
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186 | ({ \ |
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1816 | decky | 187 | unative_t ret, __ign1, __ign2, __ign3, __ign4, __ign5; \ |
1813 | decky | 188 | asm volatile ( \ |
189 | "call hypercall_page + (" STRING(id) " * 32)\n" \ |
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190 | : "=a" (ret), \ |
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191 | "=b" (__ign1), \ |
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192 | "=c" (__ign2), \ |
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193 | "=d" (__ign3), \ |
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194 | "=S" (__ign4), \ |
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195 | "=D" (__ign5) \ |
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196 | : "1" (p1), \ |
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197 | "2" (p2), \ |
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198 | "3" (p3), \ |
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199 | "4" (p4), \ |
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1816 | decky | 200 | "5" (p5) \ |
1813 | decky | 201 | : "memory" \ |
202 | ); \ |
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203 | ret; \ |
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204 | }) |
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205 | |||
206 | |||
1817 | decky | 207 | static inline int xen_console_io(const unsigned int cmd, const unsigned int count, const char *str) |
1813 | decky | 208 | { |
209 | return hypercall3(XEN_CONSOLE_IO, cmd, count, str); |
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210 | } |
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211 | |||
1829 | decky | 212 | static inline int xen_set_callbacks(const unsigned int event_selector, const void *event_address, const unsigned int failsafe_selector, void *failsafe_address) |
213 | { |
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214 | return hypercall4(XEN_SET_CALLBACKS, event_selector, event_address, failsafe_selector, failsafe_address); |
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215 | } |
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216 | |||
217 | static inline int xen_set_trap_table(const trap_info_t *table) |
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218 | { |
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219 | return hypercall1(XEN_SET_TRAP_TABLE, table); |
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220 | } |
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221 | |||
1830 | decky | 222 | static inline int xen_version(const unsigned int cmd, const void *arg) |
223 | { |
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224 | return hypercall2(XEN_VERSION, cmd, arg); |
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225 | } |
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226 | |||
1831 | decky | 227 | static inline int xen_notify_remote(evtchn_t channel) |
228 | { |
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229 | evtchn_op_t op; |
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230 | |||
231 | op.cmd = EVTCHNOP_SEND; |
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232 | op.send.port = channel; |
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233 | return hypercall1(XEN_EVENT_CHANNEL_OP, &op); |
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234 | } |
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235 | |||
1813 | decky | 236 | #endif |