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 41 /* 42 * Query the status of an IRQ line. 43 * @arg == pointer to physdev_irq_status_query structure. 44 */ 45 #define PHYSDEVOP_irq_status_query 5 46 struct physdev_irq_status_query { 47 /* IN */ 48 uint32_t irq; 49 /* OUT */ 50 uint32_t flags; /* XENIRQSTAT_* */ 51 }; 52 53 /* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */ 54 #define _XENIRQSTAT_needs_eoi (0) 55 #define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi) 56 57 /* IRQ shared by multiple guests? */ 58 #define _XENIRQSTAT_shared (1) 59 #define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared) 60 61 /* 62 * Set the current VCPU's I/O privilege level. 63 * @arg == pointer to physdev_set_iopl structure. 64 */ 65 #define PHYSDEVOP_set_iopl 6 66 struct physdev_set_iopl { 67 /* IN */ 68 uint32_t iopl; 69 }; 70 71 /* 72 * Set the current VCPU's I/O-port permissions bitmap. 73 * @arg == pointer to physdev_set_iobitmap structure. 74 */ 75 #define PHYSDEVOP_set_iobitmap 7 76 struct physdev_set_iobitmap { 77 /* IN */ 78 uint8_t * bitmap; 79 uint32_t nr_ports; 80 }; 81 82 /* 83 * Read or write an IO-APIC register. 84 * @arg == pointer to physdev_apic structure. 85 */ 86 #define PHYSDEVOP_apic_read 8 87 #define PHYSDEVOP_apic_write 9 88 struct physdev_apic { 89 /* IN */ 90 unsigned long apic_physbase; 91 uint32_t reg; 92 /* IN or OUT */ 93 uint32_t value; 94 }; 95 96 /* 97 * Allocate or free a physical upcall vector for the specified IRQ line. 98 * @arg == pointer to physdev_irq structure. 99 */ 100 #define PHYSDEVOP_alloc_irq_vector 10 101 #define PHYSDEVOP_free_irq_vector 11 102 struct physdev_irq { 103 /* IN */ 104 uint32_t irq; 105 /* IN or OUT */ 106 uint32_t vector; 107 }; 108 109 /* 110 * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op() 111 * hypercall since 0x00030202. 112 */ 113 struct physdev_op { 114 uint32_t cmd; 115 union { 116 struct physdev_irq_status_query irq_status_query; 117 struct physdev_set_iopl set_iopl; 118 struct physdev_set_iobitmap set_iobitmap; 119 struct physdev_apic apic_op; 120 struct physdev_irq irq_op; 121 } u; 122 }; 123 124 /* 125 * Notify that some PIRQ-bound event channels have been unmasked. 126 * ** This command is obsolete since interface version 0x00030202 and is ** 127 * ** unsupported by newer versions of Xen. ** 128 */ 129 #define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4 130 131 /* 132 * These all-capitals physdev operation names are superceded by the new names 133 * (defined above) since interface version 0x00030202. 134 */ 135 #define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query 136 #define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl 137 #define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap 138 #define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read 139 #define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write 140 #define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector 141 #define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector 142 #define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi 143 #define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared 144 145 #endif /* __XEN_PUBLIC_PHYSDEV_H__ */ 146