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 * Copyright (C) IBM Corp. 2005, 2006
21 *
22 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
23 */
24
25#include "xen.h"
26
27#ifndef __XEN_PUBLIC_ARCH_PPC_64_H__
28#define __XEN_PUBLIC_ARCH_PPC_64_H__
29
30#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
31    typedef struct { \
32        int __pad[(sizeof (long long) - sizeof (void *)) / sizeof (int)]; \
33        type *p; \
34    } __attribute__((__aligned__(8))) __guest_handle_ ## name
35
36#define __DEFINE_XEN_GUEST_HANDLE(name, type) \
37    ___DEFINE_XEN_GUEST_HANDLE(name, type);   \
38    ___DEFINE_XEN_GUEST_HANDLE(const_##name, const type)
39#define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name)
40#define XEN_GUEST_HANDLE(name)        __guest_handle_ ## name
41#define set_xen_guest_handle(hnd, val) \
42    do { \
43        if (sizeof ((hnd).__pad)) \
44            (hnd).__pad[0] = 0; \
45        (hnd).p = val; \
46    } while (0)
47
48#ifdef __XEN_TOOLS__
49#define get_xen_guest_handle(val, hnd)  do { val = (hnd).p; } while (0)
50#endif
51
52#ifndef __ASSEMBLY__
53typedef unsigned long long xen_pfn_t;
54#define PRI_xen_pfn "llx"
55#endif
56
57/*
58 * Pointers and other address fields inside interface structures are padded to
59 * 64 bits. This means that field alignments aren't different between 32- and
60 * 64-bit architectures.
61 */
62/* NB. Multi-level macro ensures __LINE__ is expanded before concatenation. */
63#define __MEMORY_PADDING(_X)
64#define _MEMORY_PADDING(_X)  __MEMORY_PADDING(_X)
65#define MEMORY_PADDING       _MEMORY_PADDING(__LINE__)
66
67/* And the trap vector is... */
68#define TRAP_INSTR "li 0,-1; sc" /* XXX just "sc"? */
69
70#ifndef __ASSEMBLY__
71
72#define XENCOMM_INLINE_FLAG (1UL << 63)
73
74typedef uint64_t xen_ulong_t;
75
76/* User-accessible registers: nost of these need to be saved/restored
77 * for every nested Xen invocation. */
78struct cpu_user_regs
79{
80    uint64_t gprs[32];
81    uint64_t lr;
82    uint64_t ctr;
83    uint64_t srr0;
84    uint64_t srr1;
85    uint64_t pc;
86    uint64_t msr;
87    uint64_t fpscr;             /* XXX Is this necessary */
88    uint64_t xer;
89    uint64_t hid4;              /* debug only */
90    uint64_t dar;               /* debug only */
91    uint32_t dsisr;             /* debug only */
92    uint32_t cr;
93    uint32_t __pad;             /* good spot for another 32bit reg */
94    uint32_t entry_vector;
95};
96typedef struct cpu_user_regs cpu_user_regs_t;
97
98typedef uint64_t tsc_timestamp_t; /* RDTSC timestamp */ /* XXX timebase */
99
100/* ONLY used to communicate with dom0! See also struct exec_domain. */
101struct vcpu_guest_context {
102    cpu_user_regs_t user_regs;         /* User-level CPU registers     */
103    uint64_t sdr1;                     /* Pagetable base               */
104    /* XXX etc */
105};
106typedef struct vcpu_guest_context vcpu_guest_context_t;
107DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t);
108
109struct arch_shared_info {
110    uint64_t boot_timebase;
111};
112
113struct arch_vcpu_info {
114};
115
116/* Support for multi-processor guests. */
117#define MAX_VIRT_CPUS 32
118#endif
119
120#endif
121