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xenpmap.h revision 1.36 
      1 /*	$NetBSD: xenpmap.h,v 1.36 2012/06/27 00:37:09 jym Exp $	*/
      2 
      3 /*
      4  *
      5  * Copyright (c) 2004 Christian Limpach.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 
     30 #ifndef _XEN_XENPMAP_H_
     31 #define _XEN_XENPMAP_H_
     32 
     33 #ifdef _KERNEL_OPT
     34 #include "opt_xen.h"
     35 #endif
     36 
     37 #include <sys/types.h>
     38 #include <sys/kcpuset.h>
     39 
     40 #define	INVALID_P2M_ENTRY	(~0UL)
     41 
     42 void xpq_queue_machphys_update(paddr_t, paddr_t);
     43 void xpq_queue_invlpg(vaddr_t);
     44 void xpq_queue_pte_update(paddr_t, pt_entry_t);
     45 void xpq_queue_pt_switch(paddr_t);
     46 void xpq_flush_queue(void);
     47 void xpq_queue_set_ldt(vaddr_t, uint32_t);
     48 void xpq_queue_tlb_flush(void);
     49 void xpq_queue_pin_table(paddr_t, int);
     50 void xpq_queue_unpin_table(paddr_t);
     51 int  xpq_update_foreign(paddr_t, pt_entry_t, int);
     52 void xen_vcpu_mcast_invlpg(vaddr_t, vaddr_t, kcpuset_t *);
     53 void xen_vcpu_bcast_invlpg(vaddr_t, vaddr_t);
     54 void xen_mcast_tlbflush(kcpuset_t *);
     55 void xen_bcast_tlbflush(void);
     56 void xen_mcast_invlpg(vaddr_t, kcpuset_t *);
     57 void xen_bcast_invlpg(vaddr_t);
     58 
     59 void pmap_xen_resume(void);
     60 void pmap_xen_suspend(void);
     61 void pmap_map_recursive_entries(void);
     62 void pmap_unmap_recursive_entries(void);
     63 
     64 #if defined(PAE) || defined(__x86_64__)
     65 void xen_kpm_sync(struct pmap *, int);
     66 #endif /* PAE || __x86_64__ */
     67 
     68 #define xpq_queue_pin_l1_table(pa)	\
     69 	xpq_queue_pin_table(pa, MMUEXT_PIN_L1_TABLE)
     70 #define xpq_queue_pin_l2_table(pa)	\
     71 	xpq_queue_pin_table(pa, MMUEXT_PIN_L2_TABLE)
     72 #define xpq_queue_pin_l3_table(pa)	\
     73 	xpq_queue_pin_table(pa, MMUEXT_PIN_L3_TABLE)
     74 #define xpq_queue_pin_l4_table(pa)	\
     75 	xpq_queue_pin_table(pa, MMUEXT_PIN_L4_TABLE)
     76 
     77 extern unsigned long *xpmap_phys_to_machine_mapping;
     78 
     79 #define mfn_to_pfn(mfn) (machine_to_phys_mapping[(mfn)])
     80 #define pfn_to_mfn(pfn) (xpmap_phys_to_machine_mapping[(pfn)])
     81 
     82 static __inline paddr_t
     83 xpmap_mtop_masked(paddr_t mpa)
     84 {
     85 	return (
     86 	    (paddr_t)machine_to_phys_mapping[mpa >> PAGE_SHIFT] << PAGE_SHIFT);
     87 }
     88 
     89 static __inline paddr_t
     90 xpmap_mtop(paddr_t mpa)
     91 {
     92 	return (xpmap_mtop_masked(mpa) | (mpa & ~PG_FRAME));
     93 }
     94 
     95 static __inline paddr_t
     96 xpmap_ptom_masked(paddr_t ppa)
     97 {
     98 	return (((paddr_t)xpmap_phys_to_machine_mapping[(ppa) >> PAGE_SHIFT])
     99 	    << PAGE_SHIFT);
    100 }
    101 
    102 static __inline paddr_t
    103 xpmap_ptom(paddr_t ppa)
    104 {
    105 	return (xpmap_ptom_masked(ppa) | (ppa & ~PG_FRAME));
    106 }
    107 
    108 static inline void
    109 MULTI_update_va_mapping(
    110 	multicall_entry_t *mcl, vaddr_t va,
    111 	pt_entry_t new_val, unsigned long flags)
    112 {
    113 	mcl->op = __HYPERVISOR_update_va_mapping;
    114 	mcl->args[0] = va;
    115 #if defined(__x86_64__)
    116 	mcl->args[1] = new_val;
    117 	mcl->args[2] = flags;
    118 #else
    119 	mcl->args[1] = (new_val & 0xffffffff);
    120 #ifdef PAE
    121 	mcl->args[2] = (new_val >> 32);
    122 #else
    123 	mcl->args[2] = 0;
    124 #endif
    125 	mcl->args[3] = flags;
    126 #endif
    127 }
    128 
    129 static inline void
    130 MULTI_update_va_mapping_otherdomain(
    131 	multicall_entry_t *mcl, vaddr_t va,
    132 	pt_entry_t new_val, unsigned long flags, domid_t domid)
    133 {
    134 	mcl->op = __HYPERVISOR_update_va_mapping_otherdomain;
    135 	mcl->args[0] = va;
    136 #if defined(__x86_64__)
    137 	mcl->args[1] = new_val;
    138 	mcl->args[2] = flags;
    139 	mcl->args[3] = domid;
    140 #else
    141 	mcl->args[1] = (new_val & 0xffffffff);
    142 #ifdef PAE
    143 	mcl->args[2] = (new_val >> 32);
    144 #else
    145 	mcl->args[2] = 0;
    146 #endif
    147 	mcl->args[3] = flags;
    148 	mcl->args[4] = domid;
    149 #endif
    150 }
    151 #if defined(__x86_64__)
    152 #define MULTI_UVMFLAGS_INDEX 2
    153 #define MULTI_UVMDOMID_INDEX 3
    154 #else
    155 #define MULTI_UVMFLAGS_INDEX 3
    156 #define MULTI_UVMDOMID_INDEX 4
    157 #endif
    158 
    159 #if defined(__x86_64__)
    160 void xen_set_user_pgd(paddr_t);
    161 #endif
    162 
    163 #endif /* _XEN_XENPMAP_H_ */
    164