diff options
Diffstat (limited to 'include/xen/interface/physdev.h')
| -rw-r--r-- | include/xen/interface/physdev.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/include/xen/interface/physdev.h b/include/xen/interface/physdev.h new file mode 100644 index 000000000000..cd6939147cb6 --- /dev/null +++ b/include/xen/interface/physdev.h | |||
| @@ -0,0 +1,145 @@ | |||
| 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__ */ | ||
