121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
/*-
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* Copyright (c) 2008 Kip Macy
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef XENVAR_H_
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#define XENVAR_H_
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#define XBOOTUP 0x1
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#define XPMAP 0x2
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extern int xendebug_flags;
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#ifndef NOXENDEBUG
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#define XENPRINTF printk
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#else
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#define XENPRINTF printf
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#endif
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#include <xen/features.h>
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#if 0
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#define TRACE_ENTER XENPRINTF("(file=%s, line=%d) entered %s\n", __FILE__, __LINE__, __FUNCTION__)
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#define TRACE_EXIT XENPRINTF("(file=%s, line=%d) exiting %s\n", __FILE__, __LINE__, __FUNCTION__)
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#define TRACE_DEBUG(argflags, _f, _a...) \
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if (xendebug_flags & argflags) XENPRINTF("(file=%s, line=%d) " _f "\n", __FILE__, __LINE__, ## _a);
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#else
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#define TRACE_ENTER
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#define TRACE_EXIT
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#define TRACE_DEBUG(argflags, _f, _a...)
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#endif
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#ifdef XENHVM
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static inline vm_paddr_t
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phystomach(vm_paddr_t pa)
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{
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return (pa);
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}
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static inline vm_paddr_t
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machtophys(vm_paddr_t ma)
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{
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return (ma);
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}
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#define vtomach(va) pmap_kextract((vm_offset_t) (va))
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#define PFNTOMFN(pa) (pa)
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#define MFNTOPFN(ma) (ma)
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#define set_phys_to_machine(pfn, mfn) ((void)0)
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#define phys_to_machine_mapping_valid(pfn) (TRUE)
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#define PT_UPDATES_FLUSH() ((void)0)
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#else
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extern xen_pfn_t *xen_phys_machine;
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extern xen_pfn_t *xen_machine_phys;
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/* Xen starts physical pages after the 4MB ISA hole -
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* FreeBSD doesn't
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*/
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#undef ADD_ISA_HOLE /* XXX */
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#ifdef ADD_ISA_HOLE
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#define ISA_INDEX_OFFSET 1024
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#define ISA_PDR_OFFSET 1
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#else
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#define ISA_INDEX_OFFSET 0
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#define ISA_PDR_OFFSET 0
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#endif
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#define PFNTOMFN(i) (xen_phys_machine[(i)])
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#define MFNTOPFN(i) ((vm_paddr_t)xen_machine_phys[(i)])
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#define VTOP(x) ((((uintptr_t)(x))) - KERNBASE)
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#define PTOV(x) (((uintptr_t)(x)) + KERNBASE)
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#define VTOPFN(x) (VTOP(x) >> PAGE_SHIFT)
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#define PFNTOV(x) PTOV((vm_paddr_t)(x) << PAGE_SHIFT)
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#define VTOMFN(va) (vtomach(va) >> PAGE_SHIFT)
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#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
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#define phystomach(pa) (((vm_paddr_t)(PFNTOMFN((pa) >> PAGE_SHIFT))) << PAGE_SHIFT)
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#define machtophys(ma) (((vm_paddr_t)(MFNTOPFN((ma) >> PAGE_SHIFT))) << PAGE_SHIFT)
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#endif
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void xpq_init(void);
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int xen_create_contiguous_region(vm_page_t pages, int npages);
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void xen_destroy_contiguous_region(void * addr, int npages);
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#endif
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