xenfunc.c revision 1.2.16.2
1 1.2.16.2 matt /* $NetBSD: xenfunc.c,v 1.2.16.2 2008/01/09 01:50:17 matt Exp $ */ 2 1.2.16.2 matt 3 1.2.16.2 matt /* 4 1.2.16.2 matt * 5 1.2.16.2 matt * Copyright (c) 2004 Christian Limpach. 6 1.2.16.2 matt * All rights reserved. 7 1.2.16.2 matt * 8 1.2.16.2 matt * Redistribution and use in source and binary forms, with or without 9 1.2.16.2 matt * modification, are permitted provided that the following conditions 10 1.2.16.2 matt * are met: 11 1.2.16.2 matt * 1. Redistributions of source code must retain the above copyright 12 1.2.16.2 matt * notice, this list of conditions and the following disclaimer. 13 1.2.16.2 matt * 2. Redistributions in binary form must reproduce the above copyright 14 1.2.16.2 matt * notice, this list of conditions and the following disclaimer in the 15 1.2.16.2 matt * documentation and/or other materials provided with the distribution. 16 1.2.16.2 matt * 3. All advertising materials mentioning features or use of this software 17 1.2.16.2 matt * must display the following acknowledgement: 18 1.2.16.2 matt * This product includes software developed by Christian Limpach. 19 1.2.16.2 matt * 4. The name of the author may not be used to endorse or promote products 20 1.2.16.2 matt * derived from this software without specific prior written permission. 21 1.2.16.2 matt * 22 1.2.16.2 matt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 1.2.16.2 matt * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 1.2.16.2 matt * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 1.2.16.2 matt * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 1.2.16.2 matt * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 1.2.16.2 matt * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 1.2.16.2 matt * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 1.2.16.2 matt * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 1.2.16.2 matt * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 1.2.16.2 matt * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 1.2.16.2 matt */ 33 1.2.16.2 matt 34 1.2.16.2 matt #include <sys/param.h> 35 1.2.16.2 matt 36 1.2.16.2 matt #include <uvm/uvm_extern.h> 37 1.2.16.2 matt 38 1.2.16.2 matt #include <machine/intr.h> 39 1.2.16.2 matt #include <machine/vmparam.h> 40 1.2.16.2 matt #include <machine/pmap.h> 41 1.2.16.2 matt #include <xen/xen.h> 42 1.2.16.2 matt #include <xen/hypervisor.h> 43 1.2.16.2 matt //#include <xen/evtchn.h> 44 1.2.16.2 matt #include <xen/xenpmap.h> 45 1.2.16.2 matt #include <machine/pte.h> 46 1.2.16.2 matt 47 1.2.16.2 matt #ifdef XENDEBUG_LOW 48 1.2.16.2 matt #define __PRINTK(x) printk x 49 1.2.16.2 matt #else 50 1.2.16.2 matt #define __PRINTK(x) 51 1.2.16.2 matt #endif 52 1.2.16.2 matt 53 1.2.16.2 matt void xen_set_ldt(vaddr_t, uint32_t); 54 1.2.16.2 matt void xen_update_descriptor(union descriptor *, union descriptor *); 55 1.2.16.2 matt 56 1.2.16.2 matt void 57 1.2.16.2 matt invlpg(vaddr_t addr) 58 1.2.16.2 matt { 59 1.2.16.2 matt int s = splvm(); 60 1.2.16.2 matt xpq_queue_invlpg(addr); 61 1.2.16.2 matt xpq_flush_queue(); 62 1.2.16.2 matt splx(s); 63 1.2.16.2 matt } 64 1.2.16.2 matt 65 1.2.16.2 matt #ifndef __x86_64__ 66 1.2.16.2 matt void 67 1.2.16.2 matt lldt(u_short sel) 68 1.2.16.2 matt { 69 1.2.16.2 matt 70 1.2.16.2 matt /* __PRINTK(("ldt %x\n", IDXSELN(sel))); */ 71 1.2.16.2 matt if (sel == GSEL(GLDT_SEL, SEL_KPL)) 72 1.2.16.2 matt xen_set_ldt((vaddr_t)ldt, NLDT); 73 1.2.16.2 matt else 74 1.2.16.2 matt xen_set_ldt(cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_base, 75 1.2.16.2 matt cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_entries); 76 1.2.16.2 matt } 77 1.2.16.2 matt #endif 78 1.2.16.2 matt 79 1.2.16.2 matt void 80 1.2.16.2 matt ltr(u_short sel) 81 1.2.16.2 matt { 82 1.2.16.2 matt __PRINTK(("XXX ltr not supported\n")); 83 1.2.16.2 matt } 84 1.2.16.2 matt 85 1.2.16.2 matt void 86 1.2.16.2 matt lcr0(u_int val) 87 1.2.16.2 matt { 88 1.2.16.2 matt __PRINTK(("XXX lcr0 not supported\n")); 89 1.2.16.2 matt } 90 1.2.16.2 matt 91 1.2.16.2 matt u_int 92 1.2.16.2 matt rcr0(void) 93 1.2.16.2 matt { 94 1.2.16.2 matt __PRINTK(("XXX rcr0 not supported\n")); 95 1.2.16.2 matt return 0; 96 1.2.16.2 matt } 97 1.2.16.2 matt 98 1.2.16.2 matt #ifndef __x86_64__ 99 1.2.16.2 matt void 100 1.2.16.2 matt lcr3(vaddr_t val) 101 1.2.16.2 matt { 102 1.2.16.2 matt int s = splvm(); 103 1.2.16.2 matt xpq_queue_pt_switch(xpmap_ptom_masked(val)); 104 1.2.16.2 matt xpq_flush_queue(); 105 1.2.16.2 matt splx(s); 106 1.2.16.2 matt } 107 1.2.16.2 matt #endif 108 1.2.16.2 matt 109 1.2.16.2 matt void 110 1.2.16.2 matt tlbflush(void) 111 1.2.16.2 matt { 112 1.2.16.2 matt int s = splvm(); 113 1.2.16.2 matt xpq_queue_tlb_flush(); 114 1.2.16.2 matt xpq_flush_queue(); 115 1.2.16.2 matt splx(s); 116 1.2.16.2 matt } 117 1.2.16.2 matt 118 1.2.16.2 matt void 119 1.2.16.2 matt tlbflushg(void) 120 1.2.16.2 matt { 121 1.2.16.2 matt tlbflush(); 122 1.2.16.2 matt } 123 1.2.16.2 matt 124 1.2.16.2 matt vaddr_t 125 1.2.16.2 matt rdr6(void) 126 1.2.16.2 matt { 127 1.2.16.2 matt u_int val; 128 1.2.16.2 matt 129 1.2.16.2 matt val = HYPERVISOR_get_debugreg(6); 130 1.2.16.2 matt return val; 131 1.2.16.2 matt } 132 1.2.16.2 matt 133 1.2.16.2 matt void 134 1.2.16.2 matt ldr6(vaddr_t val) 135 1.2.16.2 matt { 136 1.2.16.2 matt 137 1.2.16.2 matt HYPERVISOR_set_debugreg(6, val); 138 1.2.16.2 matt } 139 1.2.16.2 matt 140 1.2.16.2 matt void 141 1.2.16.2 matt wbinvd(void) 142 1.2.16.2 matt { 143 1.2.16.2 matt 144 1.2.16.2 matt xpq_flush_cache(); 145 1.2.16.2 matt } 146 1.2.16.2 matt 147 1.2.16.2 matt vaddr_t 148 1.2.16.2 matt rcr2(void) 149 1.2.16.2 matt { 150 1.2.16.2 matt #ifdef XEN3 151 1.2.16.2 matt return HYPERVISOR_shared_info->vcpu_info[0].arch.cr2; /* XXX curcpu */ 152 1.2.16.2 matt #else 153 1.2.16.2 matt return 0; 154 1.2.16.2 matt #endif 155 1.2.16.2 matt } 156
Indexes created Thu Oct 02 14:10:14 GMT 2025