172445Sassar/*- 272445Sassar * Copyright (c) 2008 Kip Macy 372445Sassar * All rights reserved. 472445Sassar * 572445Sassar * Redistribution and use in source and binary forms, with or without 672445Sassar * modification, are permitted provided that the following conditions 772445Sassar * are met: 872445Sassar * 1. Redistributions of source code must retain the above copyright 972445Sassar * notice, this list of conditions and the following disclaimer. 1072445Sassar * 2. Redistributions in binary form must reproduce the above copyright 1172445Sassar * notice, this list of conditions and the following disclaimer in the 1272445Sassar * documentation and/or other materials provided with the distribution. 1372445Sassar * 1472445Sassar * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1572445Sassar * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1672445Sassar * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1772445Sassar * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1872445Sassar * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1972445Sassar * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2072445Sassar * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2172445Sassar * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2272445Sassar * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2372445Sassar * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2472445Sassar * SUCH DAMAGE. 2572445Sassar * 2672445Sassar * $FreeBSD$ 2772445Sassar */ 2872445Sassar 2972445Sassar#ifndef XENVAR_H_ 3072445Sassar#define XENVAR_H_ 3172445Sassar 3272445Sassar#include <machine/xen/features.h> 3372445Sassar 34178825Sdfr#if defined(XEN) 3572445Sassar 3672445Sassar#define XBOOTUP 0x1 3772445Sassar#define XPMAP 0x2 3872445Sassarextern int xendebug_flags; 3972445Sassar#ifndef NOXENDEBUG 4072445Sassar#define XENPRINTF printk 4172445Sassar#else 4272445Sassar#define XENPRINTF printf 4372445Sassar#endif 4472445Sassar 4572445Sassarextern xen_pfn_t *xen_phys_machine; 4672445Sassarextern xen_pfn_t *xen_pfn_to_mfn_frame_list[16]; 4772445Sassarextern xen_pfn_t *xen_pfn_to_mfn_frame_list_list; 4872445Sassar 4972445Sassar#if 0 5072445Sassar#define TRACE_ENTER XENPRINTF("(file=%s, line=%d) entered %s\n", __FILE__, __LINE__, __FUNCTION__) 5172445Sassar#define TRACE_EXIT XENPRINTF("(file=%s, line=%d) exiting %s\n", __FILE__, __LINE__, __FUNCTION__) 5272445Sassar#define TRACE_DEBUG(argflags, _f, _a...) \ 5372445Sassarif (xendebug_flags & argflags) XENPRINTF("(file=%s, line=%d) " _f "\n", __FILE__, __LINE__, ## _a); 5472445Sassar#else 5572445Sassar#define TRACE_ENTER 5672445Sassar#define TRACE_EXIT 5772445Sassar#define TRACE_DEBUG(argflags, _f, _a...) 5872445Sassar#endif 5972445Sassar 6072445Sassarextern xen_pfn_t *xen_machine_phys; 6172445Sassar/* Xen starts physical pages after the 4MB ISA hole - 6272445Sassar * FreeBSD doesn't 63178825Sdfr */ 6472445Sassar 65178825Sdfr 66178825Sdfr#undef ADD_ISA_HOLE /* XXX */ 67178825Sdfr 68#ifdef ADD_ISA_HOLE 69#define ISA_INDEX_OFFSET 1024 70#define ISA_PDR_OFFSET 1 71#else 72#define ISA_INDEX_OFFSET 0 73#define ISA_PDR_OFFSET 0 74#endif 75 76 77#define PFNTOMFN(i) (xen_phys_machine[(i)]) 78#define MFNTOPFN(i) ((vm_paddr_t)xen_machine_phys[(i)]) 79 80#define VTOP(x) ((((uintptr_t)(x))) - KERNBASE) 81#define PTOV(x) (((uintptr_t)(x)) + KERNBASE) 82 83#define VTOPFN(x) (VTOP(x) >> PAGE_SHIFT) 84#define PFNTOV(x) PTOV((vm_paddr_t)(x) << PAGE_SHIFT) 85 86#define VTOMFN(va) (vtomach(va) >> PAGE_SHIFT) 87#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) 88 89#define phystomach(pa) (((vm_paddr_t)(PFNTOMFN((pa) >> PAGE_SHIFT))) << PAGE_SHIFT) 90#define machtophys(ma) (((vm_paddr_t)(MFNTOPFN((ma) >> PAGE_SHIFT))) << PAGE_SHIFT) 91 92 93void xpq_init(void); 94 95#define BITS_PER_LONG 32 96#define NR_CPUS MAX_VIRT_CPUS 97 98#define BITS_TO_LONGS(bits) \ 99 (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG) 100#define DECLARE_BITMAP(name,bits) \ 101 unsigned long name[BITS_TO_LONGS(bits)] 102 103int xen_create_contiguous_region(vm_page_t pages, int npages); 104 105void xen_destroy_contiguous_region(void * addr, int npages); 106 107#elif defined(XENHVM) 108 109#define vtomach(va) pmap_kextract((vm_offset_t) (va)) 110#define PFNTOMFN(pa) (pa) 111#define MFNTOPFN(ma) (ma) 112 113#define set_phys_to_machine(pfn, mfn) ((void)0) 114#define phys_to_machine_mapping_valid(pfn) (TRUE) 115 116#endif /* !XEN && !XENHVM */ 117 118#endif 119