1 /****************************************************************************** 2 * arch-x86/xen.h 3 * 4 * Guest OS interface to x86 Xen. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Copyright (c) 2004-2006, K A Fraser 25 */ 26 27 #include "../xen.h" 28 29 #ifndef __XEN_PUBLIC_ARCH_X86_XEN_H__ 30 #define __XEN_PUBLIC_ARCH_X86_XEN_H__ 31 32 /* Structural guest handles introduced in 0x00030201. */ 33 #if __XEN_INTERFACE_VERSION__ >= 0x00030201 34 #define ___DEFINE_XEN_GUEST_HANDLE(name, type) \ 35 typedef struct { type *p; } __guest_handle_ ## name 36 #else 37 #define ___DEFINE_XEN_GUEST_HANDLE(name, type) \ 38 typedef type * __guest_handle_ ## name 39 #endif 40 41 /* 42 * XEN_GUEST_HANDLE represents a guest pointer, when passed as a field 43 * in a struct in memory. 44 * XEN_GUEST_HANDLE_PARAM represent a guest pointer, when passed as an 45 * hypercall argument. 46 * XEN_GUEST_HANDLE_PARAM and XEN_GUEST_HANDLE are the same on X86 but 47 * they might not be on other architectures. 48 */ 49 #define __DEFINE_XEN_GUEST_HANDLE(name, type) \ 50 ___DEFINE_XEN_GUEST_HANDLE(name, type); \ 51 ___DEFINE_XEN_GUEST_HANDLE(const_##name, const type) 52 #define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name) 53 #define __XEN_GUEST_HANDLE(name) __guest_handle_ ## name 54 #define XEN_GUEST_HANDLE(name) __XEN_GUEST_HANDLE(name) 55 #define XEN_GUEST_HANDLE_PARAM(name) XEN_GUEST_HANDLE(name) 56 #define set_xen_guest_handle_raw(hnd, val) do { (hnd).p = val; } while (0) 57 #ifdef __XEN_TOOLS__ 58 #define get_xen_guest_handle(val, hnd) do { val = (hnd).p; } while (0) 59 #endif 60 #define set_xen_guest_handle(hnd, val) set_xen_guest_handle_raw(hnd, val) 61 62 #if defined(MDE_CPU_IA32) 63 #include "xen-x86_32.h" 64 #elif defined(MDE_CPU_X64) 65 #include "xen-x86_64.h" 66 #endif 67 68 #ifndef __ASSEMBLY__ 69 typedef UINTN xen_pfn_t; 70 #define PRI_xen_pfn "lx" 71 #endif 72 73 #define XEN_HAVE_PV_UPCALL_MASK 1 74 75 /* Maximum number of virtual CPUs in legacy multi-processor guests. */ 76 #define XEN_LEGACY_MAX_VCPUS 32 77 78 #ifndef __ASSEMBLY__ 79 80 typedef UINTN xen_ulong_t; 81 #define PRI_xen_ulong "lx" 82 83 typedef UINT64 tsc_timestamp_t; /* RDTSC timestamp */ 84 85 #ifdef MDE_CPU_IA32 86 #pragma pack(4) 87 #endif 88 struct arch_shared_info { 89 UINTN max_pfn; /* max pfn that appears in table */ 90 /* Frame containing list of mfns containing list of mfns containing p2m. */ 91 xen_pfn_t pfn_to_mfn_frame_list_list; 92 UINTN nmi_reason; 93 UINT64 pad[32]; 94 }; 95 typedef struct arch_shared_info arch_shared_info_t; 96 #ifdef MDE_CPU_IA32 97 #pragma pack() 98 #endif 99 100 #endif /* !__ASSEMBLY__ */ 101 102 #endif /* __XEN_PUBLIC_ARCH_X86_XEN_H__ */ 103 104 /* 105 * Local variables: 106 * mode: C 107 * c-file-style: "BSD" 108 * c-basic-offset: 4 109 * tab-width: 4 110 * indent-tabs-mode: nil 111 * End: 112 */ 113