1 /*- 2 * Copyright (c) 2012 NetApp, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _VMM_HOST_H_ 30 #define _VMM_HOST_H_ 31 32 #ifndef _KERNEL 33 #error "no user-servicable parts inside" 34 #endif 35 36 void vmm_host_state_init(void); 37 38 uint64_t vmm_get_host_pat(void); 39 uint64_t vmm_get_host_efer(void); 40 uint64_t vmm_get_host_cr0(void); 41 uint64_t vmm_get_host_cr4(void); 42 uint64_t vmm_get_host_datasel(void); 43 uint64_t vmm_get_host_codesel(void); 44 uint64_t vmm_get_host_tsssel(void); 45 uint64_t vmm_get_host_fsbase(void); 46 uint64_t vmm_get_host_idtrbase(void); 47 48 /* 49 * Inline access to host state that is used on every VM entry 50 */ 51 static __inline uint64_t 52 vmm_get_host_trbase(void) 53 { 54 55 return ((uint64_t)PCPU_GET(tssp)); 56 } 57 58 static __inline uint64_t 59 vmm_get_host_gdtrbase(void) 60 { 61 62 return ((uint64_t)&gdt[NGDT * curcpu]); 63 } 64 65 struct pcpu; 66 extern struct pcpu __pcpu[]; 67 68 static __inline uint64_t 69 vmm_get_host_gsbase(void) 70 { 71 72 return ((uint64_t)&__pcpu[curcpu]); 73 } 74 75 #endif 76