svm_softc.h revision 328842
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 * 26 * $FreeBSD: stable/10/sys/amd64/vmm/amd/svm_softc.h 328842 2018-02-04 13:54:43Z avg $ 27 */ 28 29#ifndef _SVM_SOFTC_H_ 30#define _SVM_SOFTC_H_ 31 32#define SVM_IO_BITMAP_SIZE (3 * PAGE_SIZE) 33#define SVM_MSR_BITMAP_SIZE (2 * PAGE_SIZE) 34 35struct asid { 36 uint64_t gen; /* range is [1, ~0UL] */ 37 uint32_t num; /* range is [1, nasid - 1] */ 38}; 39 40/* 41 * XXX separate out 'struct vmcb' from 'svm_vcpu' to avoid wasting space 42 * due to VMCB alignment requirements. 43 */ 44struct svm_vcpu { 45 struct vmcb vmcb; /* hardware saved vcpu context */ 46 struct svm_regctx swctx; /* software saved vcpu context */ 47 uint64_t vmcb_pa; /* VMCB physical address */ 48 uint64_t nextrip; /* next instruction to be executed by guest */ 49 int lastcpu; /* host cpu that the vcpu last ran on */ 50 uint32_t dirty; /* state cache bits that must be cleared */ 51 long eptgen; /* pmap->pm_eptgen when the vcpu last ran */ 52 struct asid asid; 53} __aligned(PAGE_SIZE); 54 55/* 56 * SVM softc, one per virtual machine. 57 */ 58struct svm_softc { 59 uint8_t apic_page[VM_MAXCPU][PAGE_SIZE]; 60 struct svm_vcpu vcpu[VM_MAXCPU]; 61 vm_offset_t nptp; /* nested page table */ 62 uint8_t *iopm_bitmap; /* shared by all vcpus */ 63 uint8_t *msr_bitmap; /* shared by all vcpus */ 64 struct vm *vm; 65}; 66 67CTASSERT((offsetof(struct svm_softc, nptp) & PAGE_MASK) == 0); 68 69static __inline struct svm_vcpu * 70svm_get_vcpu(struct svm_softc *sc, int vcpu) 71{ 72 73 return (&(sc->vcpu[vcpu])); 74} 75 76static __inline struct vmcb * 77svm_get_vmcb(struct svm_softc *sc, int vcpu) 78{ 79 80 return (&(sc->vcpu[vcpu].vmcb)); 81} 82 83static __inline struct vmcb_state * 84svm_get_vmcb_state(struct svm_softc *sc, int vcpu) 85{ 86 87 return (&(sc->vcpu[vcpu].vmcb.state)); 88} 89 90static __inline struct vmcb_ctrl * 91svm_get_vmcb_ctrl(struct svm_softc *sc, int vcpu) 92{ 93 94 return (&(sc->vcpu[vcpu].vmcb.ctrl)); 95} 96 97static __inline struct svm_regctx * 98svm_get_guest_regctx(struct svm_softc *sc, int vcpu) 99{ 100 101 return (&(sc->vcpu[vcpu].swctx)); 102} 103 104static __inline void 105svm_set_dirty(struct svm_softc *sc, int vcpu, uint32_t dirtybits) 106{ 107 struct svm_vcpu *vcpustate; 108 109 vcpustate = svm_get_vcpu(sc, vcpu); 110 111 vcpustate->dirty |= dirtybits; 112} 113 114#endif /* _SVM_SOFTC_H_ */ 115