1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2013 Anish Gupta (akgupt3@gmail.com) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _SVM_SOFTC_H_ 30 #define _SVM_SOFTC_H_ 31 32 #include "x86.h" 33 34 #define SVM_IO_BITMAP_SIZE (3 * PAGE_SIZE) 35 #define SVM_MSR_BITMAP_SIZE (2 * PAGE_SIZE) 36 37 struct svm_softc; 38 39 struct dbg { 40 uint32_t rflags_tf; /* saved RFLAGS.TF value when single-stepping a vcpu */ 41 bool popf_sstep; /* indicates that we've stepped over popf */ 42 bool pushf_sstep; /* indicates that we've stepped over pushf */ 43 }; 44 45 struct asid { 46 uint64_t gen; /* range is [1, ~0UL] */ 47 uint32_t num; /* range is [1, nasid - 1] */ 48 }; 49 50 struct svm_vcpu { 51 struct svm_softc *sc; 52 struct vcpu *vcpu; 53 struct vmcb *vmcb; /* hardware saved vcpu context */ 54 struct svm_regctx swctx; /* software saved vcpu context */ 55 uint64_t vmcb_pa; /* VMCB physical address */ 56 uint64_t nextrip; /* next instruction to be executed by guest */ 57 int lastcpu; /* host cpu that the vcpu last ran on */ 58 uint32_t dirty; /* state cache bits that must be cleared */ 59 long eptgen; /* pmap->pm_eptgen when the vcpu last ran */ 60 struct asid asid; 61 struct vm_mtrr mtrr; 62 int vcpuid; 63 struct dbg dbg; 64 int caps; /* optional vm capabilities */ 65 }; 66 67 /* 68 * SVM softc, one per virtual machine. 69 */ 70 struct svm_softc { 71 vm_paddr_t nptp; /* nested page table */ 72 uint8_t *iopm_bitmap; /* shared by all vcpus */ 73 uint8_t *msr_bitmap; /* shared by all vcpus */ 74 struct vm *vm; 75 }; 76 77 #define SVM_CTR0(vcpu, format) \ 78 VCPU_CTR0((vcpu)->sc->vm, (vcpu)->vcpuid, format) 79 80 #define SVM_CTR1(vcpu, format, p1) \ 81 VCPU_CTR1((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1) 82 83 #define SVM_CTR2(vcpu, format, p1, p2) \ 84 VCPU_CTR2((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1, p2) 85 86 #define SVM_CTR3(vcpu, format, p1, p2, p3) \ 87 VCPU_CTR3((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1, p2, p3) 88 89 #define SVM_CTR4(vcpu, format, p1, p2, p3, p4) \ 90 VCPU_CTR4((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1, p2, p3, p4) 91 92 static __inline struct vmcb * 93 svm_get_vmcb(struct svm_vcpu *vcpu) 94 { 95 96 return (vcpu->vmcb); 97 } 98 99 static __inline struct vmcb_state * 100 svm_get_vmcb_state(struct svm_vcpu *vcpu) 101 { 102 103 return (&vcpu->vmcb->state); 104 } 105 106 static __inline struct vmcb_ctrl * 107 svm_get_vmcb_ctrl(struct svm_vcpu *vcpu) 108 { 109 110 return (&vcpu->vmcb->ctrl); 111 } 112 113 static __inline struct svm_regctx * 114 svm_get_guest_regctx(struct svm_vcpu *vcpu) 115 { 116 117 return (&vcpu->swctx); 118 } 119 120 static __inline void 121 svm_set_dirty(struct svm_vcpu *vcpu, uint32_t dirtybits) 122 { 123 124 vcpu->dirty |= dirtybits; 125 } 126 127 #endif /* _SVM_SOFTC_H_ */ 128