| 1 | /* |
| 2 | * Xen HVM emulation support in KVM |
| 3 | * |
| 4 | * Copyright © 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved. |
| 5 | * |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 7 | * See the COPYING file in the top-level directory. |
| 8 | * |
| 9 | */ |
| 10 | |
| 11 | #ifndef QEMU_I386_KVM_XEN_COMPAT_H |
| 12 | #define QEMU_I386_KVM_XEN_COMPAT_H |
| 13 | |
| 14 | #include "hw/xen/interface/memory.h" |
| 15 | |
| 16 | typedef uint32_t compat_pfn_t; |
| 17 | typedef uint32_t compat_ulong_t; |
| 18 | typedef uint32_t compat_ptr_t; |
| 19 | |
| 20 | #define __DEFINE_COMPAT_HANDLE(name, type) \ |
| 21 | typedef struct { \ |
| 22 | compat_ptr_t c; \ |
| 23 | type *_[0] __attribute__((packed)); \ |
| 24 | } __compat_handle_ ## name; \ |
| 25 | |
| 26 | #define DEFINE_COMPAT_HANDLE(name) __DEFINE_COMPAT_HANDLE(name, name) |
| 27 | #define COMPAT_HANDLE(name) __compat_handle_ ## name |
| 28 | |
| 29 | DEFINE_COMPAT_HANDLE(compat_pfn_t); |
| 30 | DEFINE_COMPAT_HANDLE(compat_ulong_t); |
| 31 | DEFINE_COMPAT_HANDLE(int); |
| 32 | |
| 33 | struct compat_xen_add_to_physmap { |
| 34 | domid_t domid; |
| 35 | uint16_t size; |
| 36 | unsigned int space; |
| 37 | compat_ulong_t idx; |
| 38 | compat_pfn_t gpfn; |
| 39 | }; |
| 40 | |
| 41 | struct compat_xen_add_to_physmap_batch { |
| 42 | domid_t domid; |
| 43 | uint16_t space; |
| 44 | uint16_t size; |
| 45 | uint16_t extra; |
| 46 | COMPAT_HANDLE(compat_ulong_t) idxs; |
| 47 | COMPAT_HANDLE(compat_pfn_t) gpfns; |
| 48 | COMPAT_HANDLE(int) errs; |
| 49 | }; |
| 50 | |
| 51 | struct compat_physdev_map_pirq { |
| 52 | domid_t domid; |
| 53 | uint16_t pad; |
| 54 | /* IN */ |
| 55 | int type; |
| 56 | /* IN (ignored for ..._MULTI_MSI) */ |
| 57 | int index; |
| 58 | /* IN or OUT */ |
| 59 | int pirq; |
| 60 | /* IN - high 16 bits hold segment for ..._MSI_SEG and ..._MULTI_MSI */ |
| 61 | int bus; |
| 62 | /* IN */ |
| 63 | int devfn; |
| 64 | /* IN (also OUT for ..._MULTI_MSI) */ |
| 65 | int entry_nr; |
| 66 | /* IN */ |
| 67 | uint64_t table_base; |
| 68 | } __attribute__((packed)); |
| 69 | |
| 70 | #endif /* QEMU_I386_XEN_COMPAT_H */ |