xenfunc.c revision 1.4
1 1.4 bouyer /* $NetBSD: xenfunc.c,v 1.4 2008/02/17 14:03:16 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 1.4 bouyer #include <sys/cdefs.h> 35 1.4 bouyer __KERNEL_RCSID(0, "$NetBSD: xenfunc.c,v 1.4 2008/02/17 14:03:16 bouyer Exp $"); 36 1.4 bouyer 37 1.2 bouyer #include <sys/param.h> 38 1.2 bouyer 39 1.2 bouyer #include <uvm/uvm_extern.h> 40 1.2 bouyer 41 1.2 bouyer #include <machine/intr.h> 42 1.2 bouyer #include <machine/vmparam.h> 43 1.2 bouyer #include <machine/pmap.h> 44 1.2 bouyer #include <xen/xen.h> 45 1.2 bouyer #include <xen/hypervisor.h> 46 1.2 bouyer //#include <xen/evtchn.h> 47 1.2 bouyer #include <xen/xenpmap.h> 48 1.2 bouyer #include <machine/pte.h> 49 1.2 bouyer 50 1.2 bouyer #ifdef XENDEBUG_LOW 51 1.2 bouyer #define __PRINTK(x) printk x 52 1.2 bouyer #else 53 1.2 bouyer #define __PRINTK(x) 54 1.2 bouyer #endif 55 1.2 bouyer 56 1.2 bouyer void xen_set_ldt(vaddr_t, uint32_t); 57 1.2 bouyer 58 1.2 bouyer void 59 1.2 bouyer invlpg(vaddr_t addr) 60 1.2 bouyer { 61 1.2 bouyer int s = splvm(); 62 1.2 bouyer xpq_queue_invlpg(addr); 63 1.2 bouyer xpq_flush_queue(); 64 1.2 bouyer splx(s); 65 1.2 bouyer } 66 1.2 bouyer 67 1.2 bouyer #ifndef __x86_64__ 68 1.2 bouyer void 69 1.2 bouyer lldt(u_short sel) 70 1.2 bouyer { 71 1.2 bouyer 72 1.2 bouyer /* __PRINTK(("ldt %x\n", IDXSELN(sel))); */ 73 1.2 bouyer if (sel == GSEL(GLDT_SEL, SEL_KPL)) 74 1.2 bouyer xen_set_ldt((vaddr_t)ldt, NLDT); 75 1.2 bouyer else 76 1.2 bouyer xen_set_ldt(cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_base, 77 1.2 bouyer cpu_info_primary.ci_gdt[IDXSELN(sel)].ld.ld_entries); 78 1.2 bouyer } 79 1.2 bouyer #endif 80 1.2 bouyer 81 1.2 bouyer void 82 1.2 bouyer ltr(u_short sel) 83 1.2 bouyer { 84 1.2 bouyer __PRINTK(("XXX ltr not supported\n")); 85 1.2 bouyer } 86 1.2 bouyer 87 1.2 bouyer void 88 1.2 bouyer lcr0(u_int val) 89 1.2 bouyer { 90 1.2 bouyer __PRINTK(("XXX lcr0 not supported\n")); 91 1.2 bouyer } 92 1.2 bouyer 93 1.2 bouyer u_int 94 1.2 bouyer rcr0(void) 95 1.2 bouyer { 96 1.2 bouyer __PRINTK(("XXX rcr0 not supported\n")); 97 1.2 bouyer return 0; 98 1.2 bouyer } 99 1.2 bouyer 100 1.2 bouyer #ifndef __x86_64__ 101 1.2 bouyer void 102 1.2 bouyer lcr3(vaddr_t val) 103 1.2 bouyer { 104 1.2 bouyer int s = splvm(); 105 1.2 bouyer xpq_queue_pt_switch(xpmap_ptom_masked(val)); 106 1.2 bouyer xpq_flush_queue(); 107 1.2 bouyer splx(s); 108 1.2 bouyer } 109 1.2 bouyer #endif 110 1.2 bouyer 111 1.2 bouyer void 112 1.2 bouyer tlbflush(void) 113 1.2 bouyer { 114 1.2 bouyer int s = splvm(); 115 1.2 bouyer xpq_queue_tlb_flush(); 116 1.2 bouyer xpq_flush_queue(); 117 1.2 bouyer splx(s); 118 1.2 bouyer } 119 1.2 bouyer 120 1.2 bouyer void 121 1.2 bouyer tlbflushg(void) 122 1.2 bouyer { 123 1.2 bouyer tlbflush(); 124 1.2 bouyer } 125 1.2 bouyer 126 1.2 bouyer vaddr_t 127 1.2 bouyer rdr6(void) 128 1.2 bouyer { 129 1.2 bouyer u_int val; 130 1.2 bouyer 131 1.2 bouyer val = HYPERVISOR_get_debugreg(6); 132 1.2 bouyer return val; 133 1.2 bouyer } 134 1.2 bouyer 135 1.2 bouyer void 136 1.2 bouyer ldr6(vaddr_t val) 137 1.2 bouyer { 138 1.2 bouyer 139 1.2 bouyer HYPERVISOR_set_debugreg(6, val); 140 1.2 bouyer } 141 1.2 bouyer 142 1.2 bouyer void 143 1.2 bouyer wbinvd(void) 144 1.2 bouyer { 145 1.2 bouyer 146 1.2 bouyer xpq_flush_cache(); 147 1.2 bouyer } 148 1.2 bouyer 149 1.2 bouyer vaddr_t 150 1.2 bouyer rcr2(void) 151 1.2 bouyer { 152 1.2 bouyer #ifdef XEN3 153 1.2 bouyer return HYPERVISOR_shared_info->vcpu_info[0].arch.cr2; /* XXX curcpu */ 154 1.2 bouyer #else 155 1.2 bouyer return 0; 156 1.2 bouyer #endif 157 1.2 bouyer } 158
Indexes created Wed Sep 24 05:09:52 GMT 2025