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
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 extern int xendebug_flags;
36 #define XENPRINTF printk
38 #define XENPRINTF printf
40 #include <xen/features.h>
43 #define TRACE_ENTER XENPRINTF("(file=%s, line=%d) entered %s\n", __FILE__, __LINE__, __FUNCTION__)
44 #define TRACE_EXIT XENPRINTF("(file=%s, line=%d) exiting %s\n", __FILE__, __LINE__, __FUNCTION__)
45 #define TRACE_DEBUG(argflags, _f, _a...) \
46 if (xendebug_flags & argflags) XENPRINTF("(file=%s, line=%d) " _f "\n", __FILE__, __LINE__, ## _a);
50 #define TRACE_DEBUG(argflags, _f, _a...)
55 static inline vm_paddr_t
56 phystomach(vm_paddr_t pa)
62 static inline vm_paddr_t
63 machtophys(vm_paddr_t ma)
69 #define vtomach(va) pmap_kextract((vm_offset_t) (va))
70 #define PFNTOMFN(pa) (pa)
71 #define MFNTOPFN(ma) (ma)
73 #define set_phys_to_machine(pfn, mfn) ((void)0)
74 #define phys_to_machine_mapping_valid(pfn) (TRUE)
75 #define PT_UPDATES_FLUSH() ((void)0)
79 extern xen_pfn_t *xen_phys_machine;
82 extern xen_pfn_t *xen_machine_phys;
83 /* Xen starts physical pages after the 4MB ISA hole -
88 #undef ADD_ISA_HOLE /* XXX */
91 #define ISA_INDEX_OFFSET 1024
92 #define ISA_PDR_OFFSET 1
94 #define ISA_INDEX_OFFSET 0
95 #define ISA_PDR_OFFSET 0
99 #define PFNTOMFN(i) (xen_phys_machine[(i)])
100 #define MFNTOPFN(i) ((vm_paddr_t)xen_machine_phys[(i)])
102 #define VTOP(x) ((((uintptr_t)(x))) - KERNBASE)
103 #define PTOV(x) (((uintptr_t)(x)) + KERNBASE)
105 #define VTOPFN(x) (VTOP(x) >> PAGE_SHIFT)
106 #define PFNTOV(x) PTOV((vm_paddr_t)(x) << PAGE_SHIFT)
108 #define VTOMFN(va) (vtomach(va) >> PAGE_SHIFT)
109 #define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
111 #define phystomach(pa) (((vm_paddr_t)(PFNTOMFN((pa) >> PAGE_SHIFT))) << PAGE_SHIFT)
112 #define machtophys(ma) (((vm_paddr_t)(MFNTOPFN((ma) >> PAGE_SHIFT))) << PAGE_SHIFT)
118 int xen_create_contiguous_region(vm_page_t pages, int npages);
120 void xen_destroy_contiguous_region(void * addr, int npages);