2 * Copyright (c) 2008 Kip Macy
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <machine/xen/features.h>
38 extern int xendebug_flags;
40 /* Print directly to the Xen console during debugging. */
41 #define XENPRINTF xc_printf
43 #define XENPRINTF printf
46 extern xen_pfn_t *xen_phys_machine;
47 extern xen_pfn_t *xen_pfn_to_mfn_frame_list[16];
48 extern xen_pfn_t *xen_pfn_to_mfn_frame_list_list;
51 #define TRACE_ENTER XENPRINTF("(file=%s, line=%d) entered %s\n", __FILE__, __LINE__, __FUNCTION__)
52 #define TRACE_EXIT XENPRINTF("(file=%s, line=%d) exiting %s\n", __FILE__, __LINE__, __FUNCTION__)
53 #define TRACE_DEBUG(argflags, _f, _a...) \
54 if (xendebug_flags & argflags) XENPRINTF("(file=%s, line=%d) " _f "\n", __FILE__, __LINE__, ## _a);
58 #define TRACE_DEBUG(argflags, _f, _a...)
61 extern xen_pfn_t *xen_machine_phys;
62 /* Xen starts physical pages after the 4MB ISA hole -
67 #undef ADD_ISA_HOLE /* XXX */
70 #define ISA_INDEX_OFFSET 1024
71 #define ISA_PDR_OFFSET 1
73 #define ISA_INDEX_OFFSET 0
74 #define ISA_PDR_OFFSET 0
78 #define PFNTOMFN(i) (xen_phys_machine[(i)])
79 #define MFNTOPFN(i) ((vm_paddr_t)xen_machine_phys[(i)])
81 #define VTOP(x) ((((uintptr_t)(x))) - KERNBASE)
82 #define PTOV(x) (((uintptr_t)(x)) + KERNBASE)
84 #define VTOPFN(x) (VTOP(x) >> PAGE_SHIFT)
85 #define PFNTOV(x) PTOV((vm_paddr_t)(x) << PAGE_SHIFT)
87 #define VTOMFN(va) (vtomach(va) >> PAGE_SHIFT)
88 #define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
90 #define phystomach(pa) (((vm_paddr_t)(PFNTOMFN((pa) >> PAGE_SHIFT))) << PAGE_SHIFT)
91 #define machtophys(ma) (((vm_paddr_t)(MFNTOPFN((ma) >> PAGE_SHIFT))) << PAGE_SHIFT)
96 #define BITS_PER_LONG 32
97 #define NR_CPUS XEN_LEGACY_MAX_VCPUS
99 #define BITS_TO_LONGS(bits) \
100 (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG)
101 #define DECLARE_BITMAP(name,bits) \
102 unsigned long name[BITS_TO_LONGS(bits)]
104 int xen_create_contiguous_region(vm_page_t pages, int npages);
106 void xen_destroy_contiguous_region(void * addr, int npages);
108 #elif defined(XENHVM)
110 #define vtomach(va) pmap_kextract((vm_offset_t) (va))
111 #define PFNTOMFN(pa) (pa)
112 #define MFNTOPFN(ma) (ma)
114 #define set_phys_to_machine(pfn, mfn) ((void)0)
115 #define phys_to_machine_mapping_valid(pfn) (TRUE)
117 #endif /* !XEN && !XENHVM */