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Diffstat (limited to 'sys/i386/include/xen/xenvar.h')
-rw-r--r-- | sys/i386/include/xen/xenvar.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/sys/i386/include/xen/xenvar.h b/sys/i386/include/xen/xenvar.h new file mode 100644 index 000000000000..e160523c2d16 --- /dev/null +++ b/sys/i386/include/xen/xenvar.h @@ -0,0 +1,103 @@ +/* + * Copyright (c) 2008 Kip Macy + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * + * $FreeBSD$ + */ +#ifndef XENVAR_H_ +#define XENVAR_H_ +#define XBOOTUP 0x1 +#define XPMAP 0x2 +extern int xendebug_flags; +#ifndef NOXENDEBUG +#define XENPRINTF printk +#else +#define XENPRINTF printf +#endif +#include <machine/xen/features.h> + +extern xen_pfn_t *xen_phys_machine; + +#if 0 +#define TRACE_ENTER XENPRINTF("(file=%s, line=%d) entered %s\n", __FILE__, __LINE__, __FUNCTION__) +#define TRACE_EXIT XENPRINTF("(file=%s, line=%d) exiting %s\n", __FILE__, __LINE__, __FUNCTION__) +#define TRACE_DEBUG(argflags, _f, _a...) \ +if (xendebug_flags & argflags) XENPRINTF("(file=%s, line=%d) " _f "\n", __FILE__, __LINE__, ## _a); +#else +#define TRACE_ENTER +#define TRACE_EXIT +#define TRACE_DEBUG(argflags, _f, _a...) +#endif + +extern xen_pfn_t *xen_machine_phys; +/* Xen starts physical pages after the 4MB ISA hole - + * FreeBSD doesn't + */ + + +#undef ADD_ISA_HOLE /* XXX */ + +#ifdef ADD_ISA_HOLE +#define ISA_INDEX_OFFSET 1024 +#define ISA_PDR_OFFSET 1 +#else +#define ISA_INDEX_OFFSET 0 +#define ISA_PDR_OFFSET 0 +#endif + + +#define PFNTOMFN(i) (xen_phys_machine[((xen_pfn_t)i)]) +#define MFNTOPFN(i) (xen_machine_phys[((xen_pfn_t)i)]) + +#define VTOP(x) ((uintptr_t)(((uint8_t *)(x)) - KERNBASE)) +#define PTOV(x) ((x) + KERNBASE) + +#define VTOPFN(x) (VTOP(x) >> PAGE_SHIFT) +#define PFNTOV(x) PTOV((vm_paddr_t)(x) << PAGE_SHIFT) + +#define VTOMFN(va) (vtomach(va) >> PAGE_SHIFT) +#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) + +#define phystomach(pa) (PFNTOMFN((pa) >> PAGE_SHIFT) << PAGE_SHIFT) +#define machtophys(ma) (MFNTOPFN((ma) >> PAGE_SHIFT) << PAGE_SHIFT) + + +void xpq_init(void); + +#define BITS_PER_LONG 32 +#define NR_CPUS MAX_VIRT_CPUS + +#define BITS_TO_LONGS(bits) \ + (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG) +#define DECLARE_BITMAP(name,bits) \ + unsigned long name[BITS_TO_LONGS(bits)] +typedef struct { DECLARE_BITMAP(bits, NR_CPUS); } xen_cpumask_t; + +int xen_create_contiguous_region(vm_page_t pages, int npages); + +void xen_destroy_contiguous_region(void * addr, int npages); + +#endif |