xenfunc.c revision 1.12
1 1.12 cherry /* $NetBSD: xenfunc.c,v 1.12 2011/08/13 12:09:38 cherry Exp $ */ 2 1.2 bouyer 3 1.2 bouyer /* 4 1.2 bouyer * 5 1.2 bouyer * Copyright (c) 2004 Christian Limpach. 6 1.2 bouyer * All rights reserved. 7 1.2 bouyer * 8 1.2 bouyer * Redistribution and use in source and binary forms, with or without 9 1.2 bouyer * modification, are permitted provided that the following conditions 10 1.2 bouyer * are met: 11 1.2 bouyer * 1. Redistributions of source code must retain the above copyright 12 1.2 bouyer * notice, this list of conditions and the following disclaimer. 13 1.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 14 1.2 bouyer * notice, this list of conditions and the following disclaimer in the 15 1.2 bouyer * documentation and/or other materials provided with the distribution. 16 1.2 bouyer * 17 1.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 1.2 bouyer * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 1.2 bouyer * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 1.2 bouyer * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 1.2 bouyer * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 1.2 bouyer * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 1.2 bouyer * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 1.2 bouyer * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 1.2 bouyer * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 1.2 bouyer * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 1.2 bouyer */ 28 1.2 bouyer 29 1.4 bouyer #include <sys/cdefs.h> 30 1.12 cherry __KERNEL_RCSID(0, "$NetBSD: xenfunc.c,v 1.12 2011/08/13 12:09:38 cherry Exp $"); 31 1.4 bouyer 32 1.2 bouyer #include <sys/param.h> 33 1.2 bouyer 34 1.2 bouyer #include <uvm/uvm_extern.h> 35 1.2 bouyer 36 1.2 bouyer #include <machine/intr.h> 37 1.2 bouyer #include <machine/vmparam.h> 38 1.2 bouyer #include <machine/pmap.h> 39 1.2 bouyer #include <xen/xen.h> 40 1.2 bouyer #include <xen/hypervisor.h> 41 1.2 bouyer //#include <xen/evtchn.h> 42 1.2 bouyer #include <xen/xenpmap.h> 43 1.2 bouyer #include <machine/pte.h> 44 1.2 bouyer 45 1.2 bouyer #ifdef XENDEBUG_LOW 46 1.2 bouyer #define __PRINTK(x) printk x 47 1.2 bouyer #else 48 1.2 bouyer #define __PRINTK(x) 49 1.2 bouyer #endif 50 1.2 bouyer 51 1.2 bouyer void xen_set_ldt(vaddr_t, uint32_t); 52 1.2 bouyer 53 1.2 bouyer void 54 1.2 bouyer invlpg(vaddr_t addr) 55 1.2 bouyer { 56 1.2 bouyer int s = splvm(); 57 1.12 cherry xpq_queue_lock(); 58 1.2 bouyer xpq_queue_invlpg(addr); 59 1.12 cherry xpq_queue_unlock(); 60 1.2 bouyer splx(s); 61 1.2 bouyer } 62 1.2 bouyer 63 1.2 bouyer void 64 1.2 bouyer lldt(u_short sel) 65 1.2 bouyer { 66 1.11 jym #ifndef __x86_64__ 67 1.7 ad struct cpu_info *ci; 68 1.2 bouyer 69 1.7 ad ci = curcpu(); 70 1.7 ad 71 1.7 ad if (ci->ci_curldt == sel) 72 1.7 ad return; 73 1.2 bouyer /* __PRINTK(("ldt %x\n", IDXSELN(sel))); */ 74 1.2 bouyer if (sel == GSEL(GLDT_SEL, SEL_KPL)) 75 1.2 bouyer xen_set_ldt((vaddr_t)ldt, NLDT); 76 1.2 bouyer else 77 1.7 ad xen_set_ldt(ci->ci_gdt[IDXSELN(sel)].ld.ld_base, 78 1.7 ad ci->ci_gdt[IDXSELN(sel)].ld.ld_entries); 79 1.7 ad ci->ci_curldt = sel; 80 1.11 jym #endif 81 1.2 bouyer } 82 1.2 bouyer 83 1.2 bouyer void 84 1.2 bouyer ltr(u_short sel) 85 1.2 bouyer { 86 1.12 cherry panic("XXX ltr not supported\n"); 87 1.2 bouyer } 88 1.2 bouyer 89 1.2 bouyer void 90 1.6 cegger lcr0(u_long val) 91 1.2 bouyer { 92 1.12 cherry panic("XXX lcr0 not supported\n"); 93 1.2 bouyer } 94 1.2 bouyer 95 1.6 cegger u_long 96 1.2 bouyer rcr0(void) 97 1.2 bouyer { 98 1.12 cherry /* XXX: handle X86_CR0_TS ? */ 99 1.2 bouyer return 0; 100 1.2 bouyer } 101 1.2 bouyer 102 1.2 bouyer #ifndef __x86_64__ 103 1.2 bouyer void 104 1.2 bouyer lcr3(vaddr_t val) 105 1.2 bouyer { 106 1.2 bouyer int s = splvm(); 107 1.12 cherry xpq_queue_lock(); 108 1.2 bouyer xpq_queue_pt_switch(xpmap_ptom_masked(val)); 109 1.12 cherry xpq_queue_unlock(); 110 1.2 bouyer splx(s); 111 1.2 bouyer } 112 1.2 bouyer #endif 113 1.2 bouyer 114 1.2 bouyer void 115 1.2 bouyer tlbflush(void) 116 1.2 bouyer { 117 1.2 bouyer int s = splvm(); 118 1.12 cherry xpq_queue_lock(); 119 1.2 bouyer xpq_queue_tlb_flush(); 120 1.12 cherry xpq_queue_unlock(); 121 1.2 bouyer splx(s); 122 1.2 bouyer } 123 1.2 bouyer 124 1.2 bouyer void 125 1.2 bouyer tlbflushg(void) 126 1.2 bouyer { 127 1.2 bouyer tlbflush(); 128 1.2 bouyer } 129 1.2 bouyer 130 1.2 bouyer vaddr_t 131 1.2 bouyer rdr6(void) 132 1.2 bouyer { 133 1.2 bouyer u_int val; 134 1.2 bouyer 135 1.2 bouyer val = HYPERVISOR_get_debugreg(6); 136 1.2 bouyer return val; 137 1.2 bouyer } 138 1.2 bouyer 139 1.2 bouyer void 140 1.2 bouyer ldr6(vaddr_t val) 141 1.2 bouyer { 142 1.2 bouyer 143 1.2 bouyer HYPERVISOR_set_debugreg(6, val); 144 1.2 bouyer } 145 1.2 bouyer 146 1.2 bouyer void 147 1.2 bouyer wbinvd(void) 148 1.2 bouyer { 149 1.2 bouyer 150 1.2 bouyer xpq_flush_cache(); 151 1.2 bouyer } 152 1.2 bouyer 153 1.2 bouyer vaddr_t 154 1.2 bouyer rcr2(void) 155 1.2 bouyer { 156 1.5 cegger return curcpu()->ci_vcpu->arch.cr2; 157 1.2 bouyer } 158
Indexes created Wed Sep 24 05:09:52 GMT 2025