1 /* 2 * Permission is hereby granted, free of charge, to any person obtaining a copy 3 * of this software and associated documentation files (the "Software"), to 4 * deal in the Software without restriction, including without limitation the 5 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 6 * sell copies of the Software, and to permit persons to whom the Software is 7 * furnished to do so, subject to the following conditions: 8 * 9 * The above copyright notice and this permission notice shall be included in 10 * all copies or substantial portions of the Software. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 15 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 16 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 17 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 18 * DEALINGS IN THE SOFTWARE. 19 */ 20 21 #ifndef __XEN_PUBLIC_PHYSDEV_H__ 22 #define __XEN_PUBLIC_PHYSDEV_H__ 23 24 /* 25 * Prototype for this hypercall is: 26 * int physdev_op(int cmd, void *args) 27 * @cmd == PHYSDEVOP_??? (physdev operation). 28 * @args == Operation-specific extra arguments (NULL if none). 29 */ 30 31 /* 32 * Notify end-of-interrupt (EOI) for the specified IRQ. 33 * @arg == pointer to physdev_eoi structure. 34 */ 35 #define PHYSDEVOP_eoi 12 36 struct physdev_eoi { 37 /* IN */ 38 uint32_t irq; 39 }; 40 typedef struct physdev_eoi physdev_eoi_t; 41 DEFINE_XEN_GUEST_HANDLE(physdev_eoi_t); 42 43 /* 44 * Register a shared page for the hypervisor to indicate whether the guest 45 * must issue PHYSDEVOP_eoi. The semantics of PHYSDEVOP_eoi change slightly 46 * once the guest used this function in that the associated event channel 47 * will automatically get unmasked. The page registered is used as a bit 48 * array indexed by Xen's PIRQ value. 49 */ 50 #define PHYSDEVOP_pirq_eoi_gmfn 17 51 struct physdev_pirq_eoi_gmfn { 52 /* IN */ 53 xen_pfn_t gmfn; 54 }; 55 typedef struct physdev_pirq_eoi_gmfn physdev_pirq_eoi_gmfn_t; 56 DEFINE_XEN_GUEST_HANDLE(physdev_pirq_eoi_gmfn_t); 57 58 /* 59 * Query the status of an IRQ line. 60 * @arg == pointer to physdev_irq_status_query structure. 61 */ 62 #define PHYSDEVOP_irq_status_query 5 63 struct physdev_irq_status_query { 64 /* IN */ 65 uint32_t irq; 66 /* OUT */ 67 uint32_t flags; /* XENIRQSTAT_* */ 68 }; 69 typedef struct physdev_irq_status_query physdev_irq_status_query_t; 70 DEFINE_XEN_GUEST_HANDLE(physdev_irq_status_query_t); 71 72 /* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */ 73 #define _XENIRQSTAT_needs_eoi (0) 74 #define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi) 75 76 /* IRQ shared by multiple guests? */ 77 #define _XENIRQSTAT_shared (1) 78 #define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared) 79 80 /* 81 * Set the current VCPU's I/O privilege level. 82 * @arg == pointer to physdev_set_iopl structure. 83 */ 84 #define PHYSDEVOP_set_iopl 6 85 struct physdev_set_iopl { 86 /* IN */ 87 uint32_t iopl; 88 }; 89 typedef struct physdev_set_iopl physdev_set_iopl_t; 90 DEFINE_XEN_GUEST_HANDLE(physdev_set_iopl_t); 91 92 /* 93 * Set the current VCPU's I/O-port permissions bitmap. 94 * @arg == pointer to physdev_set_iobitmap structure. 95 */ 96 #define PHYSDEVOP_set_iobitmap 7 97 struct physdev_set_iobitmap { 98 /* IN */ 99 #if __XEN_INTERFACE_VERSION__ >= 0x00030205 100 XEN_GUEST_HANDLE(uint8) bitmap; 101 #else 102 uint8_t *bitmap; 103 #endif 104 uint32_t nr_ports; 105 }; 106 typedef struct physdev_set_iobitmap physdev_set_iobitmap_t; 107 DEFINE_XEN_GUEST_HANDLE(physdev_set_iobitmap_t); 108 109 /* 110 * Read or write an IO-APIC register. 111 * @arg == pointer to physdev_apic structure. 112 */ 113 #define PHYSDEVOP_apic_read 8 114 #define PHYSDEVOP_apic_write 9 115 struct physdev_apic { 116 /* IN */ 117 unsigned long apic_physbase; 118 uint32_t reg; 119 /* IN or OUT */ 120 uint32_t value; 121 }; 122 typedef struct physdev_apic physdev_apic_t; 123 DEFINE_XEN_GUEST_HANDLE(physdev_apic_t); 124 125 /* 126 * Allocate or free a physical upcall vector for the specified IRQ line. 127 * @arg == pointer to physdev_irq structure. 128 */ 129 #define PHYSDEVOP_alloc_irq_vector 10 130 #define PHYSDEVOP_free_irq_vector 11 131 struct physdev_irq { 132 /* IN */ 133 uint32_t irq; 134 /* IN or OUT */ 135 uint32_t vector; 136 }; 137 typedef struct physdev_irq physdev_irq_t; 138 DEFINE_XEN_GUEST_HANDLE(physdev_irq_t); 139 140 #define MAP_PIRQ_TYPE_MSI 0x0 141 #define MAP_PIRQ_TYPE_GSI 0x1 142 #define MAP_PIRQ_TYPE_UNKNOWN 0x2 143 144 #define PHYSDEVOP_map_pirq 13 145 struct physdev_map_pirq { 146 domid_t domid; 147 /* IN */ 148 int type; 149 /* IN */ 150 int index; 151 /* IN or OUT */ 152 int pirq; 153 /* IN */ 154 int bus; 155 /* IN */ 156 int devfn; 157 /* IN */ 158 int entry_nr; 159 /* IN */ 160 uint64_t table_base; 161 }; 162 typedef struct physdev_map_pirq physdev_map_pirq_t; 163 DEFINE_XEN_GUEST_HANDLE(physdev_map_pirq_t); 164 165 #define PHYSDEVOP_unmap_pirq 14 166 struct physdev_unmap_pirq { 167 domid_t domid; 168 /* IN */ 169 int pirq; 170 }; 171 172 typedef struct physdev_unmap_pirq physdev_unmap_pirq_t; 173 DEFINE_XEN_GUEST_HANDLE(physdev_unmap_pirq_t); 174 175 #define PHYSDEVOP_manage_pci_add 15 176 #define PHYSDEVOP_manage_pci_remove 16 177 struct physdev_manage_pci { 178 /* IN */ 179 uint8_t bus; 180 uint8_t devfn; 181 }; 182 183 typedef struct physdev_manage_pci physdev_manage_pci_t; 184 DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_t); 185 186 #define PHYSDEVOP_restore_msi 19 187 struct physdev_restore_msi { 188 /* IN */ 189 uint8_t bus; 190 uint8_t devfn; 191 }; 192 typedef struct physdev_restore_msi physdev_restore_msi_t; 193 DEFINE_XEN_GUEST_HANDLE(physdev_restore_msi_t); 194 195 #define PHYSDEVOP_manage_pci_add_ext 20 196 struct physdev_manage_pci_ext { 197 /* IN */ 198 uint8_t bus; 199 uint8_t devfn; 200 unsigned is_extfn; 201 unsigned is_virtfn; 202 struct { 203 uint8_t bus; 204 uint8_t devfn; 205 } physfn; 206 }; 207 208 typedef struct physdev_manage_pci_ext physdev_manage_pci_ext_t; 209 DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_ext_t); 210 211 /* 212 * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op() 213 * hypercall since 0x00030202. 214 */ 215 struct physdev_op { 216 uint32_t cmd; 217 union { 218 struct physdev_irq_status_query irq_status_query; 219 struct physdev_set_iopl set_iopl; 220 struct physdev_set_iobitmap set_iobitmap; 221 struct physdev_apic apic_op; 222 struct physdev_irq irq_op; 223 } u; 224 }; 225 typedef struct physdev_op physdev_op_t; 226 DEFINE_XEN_GUEST_HANDLE(physdev_op_t); 227 228 /* 229 * Notify that some PIRQ-bound event channels have been unmasked. 230 * ** This command is obsolete since interface version 0x00030202 and is ** 231 * ** unsupported by newer versions of Xen. ** 232 */ 233 #define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4 234 235 /* 236 * These all-capitals physdev operation names are superceded by the new names 237 * (defined above) since interface version 0x00030202. 238 */ 239 #define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query 240 #define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl 241 #define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap 242 #define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read 243 #define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write 244 #define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector 245 #define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector 246 #define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi 247 #define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared 248 249 #endif /* __XEN_PUBLIC_PHYSDEV_H__ */ 250 251 /* 252 * Local variables: 253 * mode: C 254 * c-set-style: "BSD" 255 * c-basic-offset: 4 256 * tab-width: 4 257 * indent-tabs-mode: nil 258 * End: 259 */ 260