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1/******************************************************************************\r
2 * arch-x86/xen.h\r
4040754d 3 *\r
6b621f95 4 * Guest OS interface to x86 Xen.\r
4040754d 5 *\r
6f21d772 6 * SPDX-License-Identifier: MIT\r
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7 *\r
8 * Copyright (c) 2004-2006, K A Fraser\r
9 */\r
10\r
11#include "../xen.h"\r
12\r
13#ifndef __XEN_PUBLIC_ARCH_X86_XEN_H__\r
14#define __XEN_PUBLIC_ARCH_X86_XEN_H__\r
15\r
16/* Structural guest handles introduced in 0x00030201. */\r
ac0a286f 17 #if __XEN_INTERFACE_VERSION__ >= 0x00030201\r
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18#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \\r
19 typedef struct { type *p; } __guest_handle_ ## name\r
ac0a286f 20 #else\r
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21#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \\r
22 typedef type * __guest_handle_ ## name\r
ac0a286f 23 #endif\r
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24\r
25/*\r
26 * XEN_GUEST_HANDLE represents a guest pointer, when passed as a field\r
27 * in a struct in memory.\r
28 * XEN_GUEST_HANDLE_PARAM represent a guest pointer, when passed as an\r
29 * hypercall argument.\r
30 * XEN_GUEST_HANDLE_PARAM and XEN_GUEST_HANDLE are the same on X86 but\r
31 * they might not be on other architectures.\r
32 */\r
33#define __DEFINE_XEN_GUEST_HANDLE(name, type) \\r
34 ___DEFINE_XEN_GUEST_HANDLE(name, type); \\r
35 ___DEFINE_XEN_GUEST_HANDLE(const_##name, const type)\r
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36#define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name)\r
37#define __XEN_GUEST_HANDLE(name) __guest_handle_ ## name\r
38#define XEN_GUEST_HANDLE(name) __XEN_GUEST_HANDLE(name)\r
39#define XEN_GUEST_HANDLE_PARAM(name) XEN_GUEST_HANDLE(name)\r
6b621f95 40#define set_xen_guest_handle_raw(hnd, val) do { (hnd).p = val; } while (0)\r
ac0a286f 41 #ifdef __XEN_TOOLS__\r
6b621f95 42#define get_xen_guest_handle(val, hnd) do { val = (hnd).p; } while (0)\r
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43 #endif\r
44#define set_xen_guest_handle(hnd, val) set_xen_guest_handle_raw(hnd, val)\r
6b621f95 45\r
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46 #if defined (MDE_CPU_IA32)\r
47 #include "xen-x86_32.h"\r
48 #elif defined (MDE_CPU_X64)\r
49 #include "xen-x86_64.h"\r
50 #endif\r
6b621f95 51\r
ac0a286f 52 #ifndef __ASSEMBLY__\r
6b621f95 53typedef UINTN xen_pfn_t;\r
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54#define PRI_xen_pfn "lx"\r
55 #endif\r
6b621f95 56\r
ac0a286f 57#define XEN_HAVE_PV_UPCALL_MASK 1\r
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58\r
59/* Maximum number of virtual CPUs in legacy multi-processor guests. */\r
ac0a286f 60#define XEN_LEGACY_MAX_VCPUS 32\r
6b621f95 61\r
ac0a286f 62 #ifndef __ASSEMBLY__\r
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63\r
64typedef UINTN xen_ulong_t;\r
ac0a286f 65#define PRI_xen_ulong "lx"\r
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66\r
67typedef UINT64 tsc_timestamp_t; /* RDTSC timestamp */\r
68\r
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69 #ifdef MDE_CPU_IA32\r
70 #pragma pack(4)\r
71 #endif\r
6b621f95 72struct arch_shared_info {\r
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73 UINTN max_pfn; /* max pfn that appears in table */\r
74 /* Frame containing list of mfns containing list of mfns containing p2m. */\r
75 xen_pfn_t pfn_to_mfn_frame_list_list;\r
76 UINTN nmi_reason;\r
77 UINT64 pad[32];\r
6b621f95 78};\r
ac0a286f 79\r
6b621f95 80typedef struct arch_shared_info arch_shared_info_t;\r
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81 #ifdef MDE_CPU_IA32\r
82 #pragma pack()\r
83 #endif\r
6b621f95 84\r
ac0a286f 85 #endif /* !__ASSEMBLY__ */\r
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86\r
87#endif /* __XEN_PUBLIC_ARCH_X86_XEN_H__ */\r
88\r
89/*\r
90 * Local variables:\r
91 * mode: C\r
92 * c-file-style: "BSD"\r
93 * c-basic-offset: 4\r
94 * tab-width: 4\r
95 * indent-tabs-mode: nil\r
96 * End:\r
97 */\r