1/*- 2 * Copyright (c) 2013 Anish Gupta (akgupt3@gmail.com) 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 unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 *
| 1/*- 2 * Copyright (c) 2013 Anish Gupta (akgupt3@gmail.com) 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 unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 *
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27 */ 28 29#ifndef _SVM_H_ 30#define _SVM_H_ 31 32#define BIT(n) (1ULL << n) 33#define ERR(fmt, args...) \ 34 printf("SVM ERROR:%s " fmt "\n", __func__, ##args); 35 36/* 37 * Software saved machine state for guest and host. 38 */ 39 40/* Additional guest register state */ 41struct svm_gctx { 42 register_t sctx_rdx; 43 register_t sctx_rdi; 44 register_t sctx_rsi; 45 /* Points to host context area. */ 46 register_t sctx_hostctx_base; 47}; 48 49/* Additional host register state */ 50struct svm_hctx { 51 uint16_t sctx_fs; 52 uint16_t sctx_gs; 53 54 register_t sctx_rsp; 55}; 56 57/* Common register context area for guest and host. */ 58struct svm_regctx { 59 register_t sctx_rbp; 60 61 register_t sctx_rbx; 62 register_t sctx_rcx; 63 64 register_t sctx_r8; 65 register_t sctx_r9; 66 register_t sctx_r10; 67 register_t sctx_r11; 68 register_t sctx_r12; 69 register_t sctx_r13; 70 register_t sctx_r14; 71 register_t sctx_r15; 72 73 union { 74 struct svm_hctx h; /* host-specific register state */ 75 struct svm_gctx g; /* guest-specific register state */ 76 } e; 77}; 78 79void svm_launch(uint64_t pa, struct svm_regctx *, struct svm_regctx *); 80 81static __inline void 82disable_gintr(void) 83{ 84 85 __asm __volatile("clgi" : : :); 86} 87 88static __inline void 89enable_gintr(void) 90{ 91 92 __asm __volatile("stgi" : : :); 93} 94
| 27 */ 28 29#ifndef _SVM_H_ 30#define _SVM_H_ 31 32#define BIT(n) (1ULL << n) 33#define ERR(fmt, args...) \ 34 printf("SVM ERROR:%s " fmt "\n", __func__, ##args); 35 36/* 37 * Software saved machine state for guest and host. 38 */ 39 40/* Additional guest register state */ 41struct svm_gctx { 42 register_t sctx_rdx; 43 register_t sctx_rdi; 44 register_t sctx_rsi; 45 /* Points to host context area. */ 46 register_t sctx_hostctx_base; 47}; 48 49/* Additional host register state */ 50struct svm_hctx { 51 uint16_t sctx_fs; 52 uint16_t sctx_gs; 53 54 register_t sctx_rsp; 55}; 56 57/* Common register context area for guest and host. */ 58struct svm_regctx { 59 register_t sctx_rbp; 60 61 register_t sctx_rbx; 62 register_t sctx_rcx; 63 64 register_t sctx_r8; 65 register_t sctx_r9; 66 register_t sctx_r10; 67 register_t sctx_r11; 68 register_t sctx_r12; 69 register_t sctx_r13; 70 register_t sctx_r14; 71 register_t sctx_r15; 72 73 union { 74 struct svm_hctx h; /* host-specific register state */ 75 struct svm_gctx g; /* guest-specific register state */ 76 } e; 77}; 78 79void svm_launch(uint64_t pa, struct svm_regctx *, struct svm_regctx *); 80 81static __inline void 82disable_gintr(void) 83{ 84 85 __asm __volatile("clgi" : : :); 86} 87 88static __inline void 89enable_gintr(void) 90{ 91 92 __asm __volatile("stgi" : : :); 93} 94
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