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 * Query the status of an IRQ line. 45 * @arg == pointer to physdev_irq_status_query structure. 46 */ 47 #define PHYSDEVOP_irq_status_query 5 48 struct physdev_irq_status_query { 49 /* IN */ 50 uint32_t irq; 51 /* OUT */ 52 uint32_t flags; /* XENIRQSTAT_* */ 53 }; 54 typedef struct physdev_irq_status_query physdev_irq_status_query_t; 55 DEFINE_XEN_GUEST_HANDLE(physdev_irq_status_query_t); 56 57 /* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */ 58 #define _XENIRQSTAT_needs_eoi (0) 59 #define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi) 60 61 /* IRQ shared by multiple guests? */ 62 #define _XENIRQSTAT_shared (1) 63 #define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared) 64 65 /* 66 * Set the current VCPU's I/O privilege level. 67 * @arg == pointer to physdev_set_iopl structure. 68 */ 69 #define PHYSDEVOP_set_iopl 6 70 struct physdev_set_iopl { 71 /* IN */ 72 uint32_t iopl; 73 }; 74 typedef struct physdev_set_iopl physdev_set_iopl_t; 75 DEFINE_XEN_GUEST_HANDLE(physdev_set_iopl_t); 76 77 /* 78 * Set the current VCPU's I/O-port permissions bitmap. 79 * @arg == pointer to physdev_set_iobitmap structure. 80 */ 81 #define PHYSDEVOP_set_iobitmap 7 82 struct physdev_set_iobitmap { 83 /* IN */ 84 XEN_GUEST_HANDLE_00030205(uint8_t) bitmap; 85 uint32_t nr_ports; 86 }; 87 typedef struct physdev_set_iobitmap physdev_set_iobitmap_t; 88 DEFINE_XEN_GUEST_HANDLE(physdev_set_iobitmap_t); 89 90 /* 91 * Read or write an IO-APIC register. 92 * @arg == pointer to physdev_apic structure. 93 */ 94 #define PHYSDEVOP_apic_read 8 95 #define PHYSDEVOP_apic_write 9 96 struct physdev_apic { 97 /* IN */ 98 unsigned long apic_physbase; 99 uint32_t reg; 100 /* IN or OUT */ 101 uint32_t value; 102 }; 103 typedef struct physdev_apic physdev_apic_t; 104 DEFINE_XEN_GUEST_HANDLE(physdev_apic_t); 105 106 /* 107 * Allocate or free a physical upcall vector for the specified IRQ line. 108 * @arg == pointer to physdev_irq structure. 109 */ 110 #define PHYSDEVOP_alloc_irq_vector 10 111 #define PHYSDEVOP_free_irq_vector 11 112 struct physdev_irq { 113 /* IN */ 114 uint32_t irq; 115 /* IN or OUT */ 116 uint32_t vector; 117 }; 118 typedef struct physdev_irq physdev_irq_t; 119 DEFINE_XEN_GUEST_HANDLE(physdev_irq_t); 120 121 /* 122 * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op() 123 * hypercall since 0x00030202. 124 */ 125 struct physdev_op { 126 uint32_t cmd; 127 union { 128 struct physdev_irq_status_query irq_status_query; 129 struct physdev_set_iopl set_iopl; 130 struct physdev_set_iobitmap set_iobitmap; 131 struct physdev_apic apic_op; 132 struct physdev_irq irq_op; 133 } u; 134 }; 135 typedef struct physdev_op physdev_op_t; 136 DEFINE_XEN_GUEST_HANDLE(physdev_op_t); 137 138 /* 139 * Notify that some PIRQ-bound event channels have been unmasked. 140 * ** This command is obsolete since interface version 0x00030202 and is ** 141 * ** unsupported by newer versions of Xen. ** 142 */ 143 #define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4 144 145 /* 146 * These all-capitals physdev operation names are superceded by the new names 147 * (defined above) since interface version 0x00030202. 148 */ 149 #define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query 150 #define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl 151 #define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap 152 #define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read 153 #define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write 154 #define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector 155 #define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector 156 #define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi 157 #define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared 158 159 #endif /* __XEN_PUBLIC_PHYSDEV_H__ */ 160 161 /* 162 * Local variables: 163 * mode: C 164 * c-set-style: "BSD" 165 * c-basic-offset: 4 166 * tab-width: 4 167 * indent-tabs-mode: nil 168 * End: 169 */ 170