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/*-
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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_
#include <machine/xen/features.h>
#if defined(XEN)
#define XBOOTUP 0x1
#define XPMAP 0x2
extern int xendebug_flags;
#ifndef NOXENDEBUG
/* Print directly to the Xen console during debugging. */
#define XENPRINTF xc_printf
#else
#define XENPRINTF printf
#endif
extern xen_pfn_t *xen_phys_machine;
extern xen_pfn_t *xen_pfn_to_mfn_frame_list[16];
extern xen_pfn_t *xen_pfn_to_mfn_frame_list_list;
#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[(i)])
#define MFNTOPFN(i) ((vm_paddr_t)xen_machine_phys[(i)])
#define VTOP(x) ((((uintptr_t)(x))) - KERNBASE)
#define PTOV(x) (((uintptr_t)(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) (((vm_paddr_t)(PFNTOMFN((pa) >> PAGE_SHIFT))) << PAGE_SHIFT)
#define machtophys(ma) (((vm_paddr_t)(MFNTOPFN((ma) >> PAGE_SHIFT))) << PAGE_SHIFT)
void xpq_init(void);
#define BITS_PER_LONG 32
#define NR_CPUS XEN_LEGACY_MAX_VCPUS
#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)]
int xen_create_contiguous_region(vm_page_t pages, int npages);
void xen_destroy_contiguous_region(void * addr, int npages);
#elif defined(XENHVM)
#define vtomach(va) pmap_kextract((vm_offset_t) (va))
#define PFNTOMFN(pa) (pa)
#define MFNTOPFN(ma) (ma)
#define set_phys_to_machine(pfn, mfn) ((void)0)
#define phys_to_machine_mapping_valid(pfn) (TRUE)
#endif /* !XEN && !XENHVM */
#endif
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