xenfunc.c revision 1.2
1 1.2 bouyer /* $NetBSD: xenfunc.c,v 1.2 2007/11/22 16:17:06 bouyer 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 * 3. All advertising materials mentioning features or use of this software 17 1.2 bouyer * must display the following acknowledgement: 18 1.2 bouyer * This product includes software developed by Christian Limpach. 19 1.2 bouyer * 4. The name of the author may not be used to endorse or promote products 20 1.2 bouyer * derived from this software without specific prior written permission. 21 1.2 bouyer * 22 1.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 1.2 bouyer * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 1.2 bouyer * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 1.2 bouyer * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 1.2 bouyer * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 1.2 bouyer * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 1.2 bouyer * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 1.2 bouyer * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 1.2 bouyer * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 1.2 bouyer * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 1.2 bouyer */ 33 1.2 bouyer 34 1.2 bouyer #include <sys/param.h> 35 1.2 bouyer 36 1.2 bouyer #include <uvm/uvm_extern.h> 37 1.2 bouyer 38 1.2 bouyer #include <machine/intr.h> 39 1.2 bouyer #include <machine/vmparam.h> 40 1.2 bouyer #include <machine/pmap.h> 41 1.2 bouyer #include <xen/xen.h> 42 1.2 bouyer #include <xen/hypervisor.h> 43 1.2 bouyer //#include <xen/evtchn.h> 44 1.2 bouyer #include <xen/xenpmap.h> 45 1.2 bouyer #include <machine/pte.h> 46 1.2 bouyer 47 1.2 bouyer #ifdef XENDEBUG_LOW 48 1.2 bouyer #define __PRINTK(x) printk x 49 1.2 bouyer #else 50 1.2 bouyer #define __PRINTK(x) 51 1.2 bouyer #endif 52 1.2 bouyer 53 1.2 bouyer void xen_set_ldt(vaddr_t, uint32_t); 54 1.2 bouyer void xen_update_descriptor(union descriptor *, union descriptor *); 55 1.2 bouyer 56 1.2 bouyer void 57 1.2 bouyer invlpg(vaddr_t addr) 58 1.2 bouyer { 59 1.2 bouyer int s = splvm(); 60 1.2 bouyer xpq_queue_invlpg(addr); 61 1.2 bouyer xpq_flush_queue(); 62 1.2 bouyer splx(s); 63 1.2 bouyer } 64 1.2 bouyer 65 1.2 bouyer #ifndef __x86_64__ 66 1.2 bouyer void 67 1.2 bouyer lldt(u_short sel) 68 1.2 bouyer { 69 1.2 bouyer 70 1.2 bouyer /* __PRINTK(("ldt %x\n", IDXSELN(sel))); */ 71 1.2 bouyer if (sel == GSEL(GLDT_SEL, SEL_KPL)) 72 1.2 bouyer xen_set_ldt((vaddr_t)ldt, NLDT); 73 1.2 bouyer else 74 1.2 bouyer xen_set_ldt(cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_base, 75 1.2 bouyer cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_entries); 76 1.2 bouyer } 77 1.2 bouyer #endif 78 1.2 bouyer 79 1.2 bouyer void 80 1.2 bouyer ltr(u_short sel) 81 1.2 bouyer { 82 1.2 bouyer __PRINTK(("XXX ltr not supported\n")); 83 1.2 bouyer } 84 1.2 bouyer 85 1.2 bouyer void 86 1.2 bouyer lcr0(u_int val) 87 1.2 bouyer { 88 1.2 bouyer __PRINTK(("XXX lcr0 not supported\n")); 89 1.2 bouyer } 90 1.2 bouyer 91 1.2 bouyer u_int 92 1.2 bouyer rcr0(void) 93 1.2 bouyer { 94 1.2 bouyer __PRINTK(("XXX rcr0 not supported\n")); 95 1.2 bouyer return 0; 96 1.2 bouyer } 97 1.2 bouyer 98 1.2 bouyer #ifndef __x86_64__ 99 1.2 bouyer void 100 1.2 bouyer lcr3(vaddr_t val) 101 1.2 bouyer { 102 1.2 bouyer int s = splvm(); 103 1.2 bouyer xpq_queue_pt_switch(xpmap_ptom_masked(val)); 104 1.2 bouyer xpq_flush_queue(); 105 1.2 bouyer splx(s); 106 1.2 bouyer } 107 1.2 bouyer #endif 108 1.2 bouyer 109 1.2 bouyer void 110 1.2 bouyer tlbflush(void) 111 1.2 bouyer { 112 1.2 bouyer int s = splvm(); 113 1.2 bouyer xpq_queue_tlb_flush(); 114 1.2 bouyer xpq_flush_queue(); 115 1.2 bouyer splx(s); 116 1.2 bouyer } 117 1.2 bouyer 118 1.2 bouyer void 119 1.2 bouyer tlbflushg(void) 120 1.2 bouyer { 121 1.2 bouyer tlbflush(); 122 1.2 bouyer } 123 1.2 bouyer 124 1.2 bouyer vaddr_t 125 1.2 bouyer rdr6(void) 126 1.2 bouyer { 127 1.2 bouyer u_int val; 128 1.2 bouyer 129 1.2 bouyer val = HYPERVISOR_get_debugreg(6); 130 1.2 bouyer return val; 131 1.2 bouyer } 132 1.2 bouyer 133 1.2 bouyer void 134 1.2 bouyer ldr6(vaddr_t val) 135 1.2 bouyer { 136 1.2 bouyer 137 1.2 bouyer HYPERVISOR_set_debugreg(6, val); 138 1.2 bouyer } 139 1.2 bouyer 140 1.2 bouyer void 141 1.2 bouyer wbinvd(void) 142 1.2 bouyer { 143 1.2 bouyer 144 1.2 bouyer xpq_flush_cache(); 145 1.2 bouyer } 146 1.2 bouyer 147 1.2 bouyer vaddr_t 148 1.2 bouyer rcr2(void) 149 1.2 bouyer { 150 1.2 bouyer #ifdef XEN3 151 1.2 bouyer return HYPERVISOR_shared_info->vcpu_info[0].arch.cr2; /* XXX curcpu */ 152 1.2 bouyer #else 153 1.2 bouyer return 0; 154 1.2 bouyer #endif 155 1.2 bouyer } 156
Indexes created Wed Sep 24 05:09:52 GMT 2025