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 extern int xendebug_flags;
34 #define XENPRINTF printk
36 #define XENPRINTF printf
38 #include <xen/features.h>
41 #define TRACE_ENTER XENPRINTF("(file=%s, line=%d) entered %s\n", __FILE__, __LINE__, __FUNCTION__)
42 #define TRACE_EXIT XENPRINTF("(file=%s, line=%d) exiting %s\n", __FILE__, __LINE__, __FUNCTION__)
43 #define TRACE_DEBUG(argflags, _f, _a...) \
44 if (xendebug_flags & argflags) XENPRINTF("(file=%s, line=%d) " _f "\n", __FILE__, __LINE__, ## _a);
48 #define TRACE_DEBUG(argflags, _f, _a...)
53 static inline vm_paddr_t
54 phystomach(vm_paddr_t pa)
60 static inline vm_paddr_t
61 machtophys(vm_paddr_t ma)
67 #define vtomach(va) pmap_kextract((vm_offset_t) (va))
68 #define PFNTOMFN(pa) (pa)
69 #define MFNTOPFN(ma) (ma)
71 #define set_phys_to_machine(pfn, mfn) ((void)0)
72 #define phys_to_machine_mapping_valid(pfn) (TRUE)
73 #define PT_UPDATES_FLUSH() ((void)0)
77 extern xen_pfn_t *xen_phys_machine;
80 extern xen_pfn_t *xen_machine_phys;
81 /* Xen starts physical pages after the 4MB ISA hole -
86 #undef ADD_ISA_HOLE /* XXX */
89 #define ISA_INDEX_OFFSET 1024
90 #define ISA_PDR_OFFSET 1
92 #define ISA_INDEX_OFFSET 0
93 #define ISA_PDR_OFFSET 0
97 #define PFNTOMFN(i) (xen_phys_machine[(i)])
98 #define MFNTOPFN(i) ((vm_paddr_t)xen_machine_phys[(i)])
100 #define VTOP(x) ((((uintptr_t)(x))) - KERNBASE)
101 #define PTOV(x) (((uintptr_t)(x)) + KERNBASE)
103 #define VTOPFN(x) (VTOP(x) >> PAGE_SHIFT)
104 #define PFNTOV(x) PTOV((vm_paddr_t)(x) << PAGE_SHIFT)
106 #define VTOMFN(va) (vtomach(va) >> PAGE_SHIFT)
107 #define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
109 #define phystomach(pa) (((vm_paddr_t)(PFNTOMFN((pa) >> PAGE_SHIFT))) << PAGE_SHIFT)
110 #define machtophys(ma) (((vm_paddr_t)(MFNTOPFN((ma) >> PAGE_SHIFT))) << PAGE_SHIFT)
116 int xen_create_contiguous_region(vm_page_t pages, int npages);
118 void xen_destroy_contiguous_region(void * addr, int npages);