1b18ac2d8SNeel Natu /*- 2b18ac2d8SNeel Natu * Copyright (c) 2013 Anish Gupta (akgupt3@gmail.com) 3b18ac2d8SNeel Natu * All rights reserved. 4b18ac2d8SNeel Natu * 5b18ac2d8SNeel Natu * Redistribution and use in source and binary forms, with or without 6b18ac2d8SNeel Natu * modification, are permitted provided that the following conditions 7b18ac2d8SNeel Natu * are met: 8b18ac2d8SNeel Natu * 1. Redistributions of source code must retain the above copyright 9b18ac2d8SNeel Natu * notice unmodified, this list of conditions, and the following 10b18ac2d8SNeel Natu * disclaimer. 11b18ac2d8SNeel Natu * 2. Redistributions in binary form must reproduce the above copyright 12b18ac2d8SNeel Natu * notice, this list of conditions and the following disclaimer in the 13b18ac2d8SNeel Natu * documentation and/or other materials provided with the distribution. 14b18ac2d8SNeel Natu * 15b18ac2d8SNeel Natu * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16b18ac2d8SNeel Natu * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17b18ac2d8SNeel Natu * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18b18ac2d8SNeel Natu * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19b18ac2d8SNeel Natu * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20b18ac2d8SNeel Natu * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21b18ac2d8SNeel Natu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22b18ac2d8SNeel Natu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23b18ac2d8SNeel Natu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24b18ac2d8SNeel Natu * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25b18ac2d8SNeel Natu * 26b18ac2d8SNeel Natu * $FreeBSD$ 27b18ac2d8SNeel Natu */ 28b18ac2d8SNeel Natu 29b18ac2d8SNeel Natu #ifndef _SVM_SOFTC_H_ 30b18ac2d8SNeel Natu #define _SVM_SOFTC_H_ 31b18ac2d8SNeel Natu 32b18ac2d8SNeel Natu #define SVM_IO_BITMAP_SIZE (3 * PAGE_SIZE) 33b18ac2d8SNeel Natu #define SVM_MSR_BITMAP_SIZE (2 * PAGE_SIZE) 34b18ac2d8SNeel Natu 35a2684814SNeel Natu struct asid { 36a2684814SNeel Natu uint64_t gen; /* range is [1, ~0UL] */ 37a2684814SNeel Natu uint32_t num; /* range is [1, nasid - 1] */ 38a2684814SNeel Natu }; 39a2684814SNeel Natu 40b18ac2d8SNeel Natu /* 41f37dbf57SNeel Natu * XXX separate out 'struct vmcb' from 'svm_vcpu' to avoid wasting space 42f37dbf57SNeel Natu * due to VMCB alignment requirements. 43b18ac2d8SNeel Natu */ 44b18ac2d8SNeel Natu struct svm_vcpu { 45b18ac2d8SNeel Natu struct vmcb vmcb; /* hardware saved vcpu context */ 46b18ac2d8SNeel Natu struct svm_regctx swctx; /* software saved vcpu context */ 47b18ac2d8SNeel Natu uint64_t vmcb_pa; /* VMCB physical address */ 482ce12423SNeel Natu uint64_t nextrip; /* next instruction to be executed by guest */ 49b18ac2d8SNeel Natu int lastcpu; /* host cpu that the vcpu last ran on */ 50a2684814SNeel Natu uint32_t dirty; /* state cache bits that must be cleared */ 51a2684814SNeel Natu long eptgen; /* pmap->pm_eptgen when the vcpu last ran */ 52a2684814SNeel Natu struct asid asid; 53b18ac2d8SNeel Natu } __aligned(PAGE_SIZE); 54b18ac2d8SNeel Natu 55b18ac2d8SNeel Natu /* 56b18ac2d8SNeel Natu * SVM softc, one per virtual machine. 57b18ac2d8SNeel Natu */ 58b18ac2d8SNeel Natu struct svm_softc { 59eee8190aSPeter Grehan uint8_t apic_page[VM_MAXCPU][PAGE_SIZE]; 60b18ac2d8SNeel Natu struct svm_vcpu vcpu[VM_MAXCPU]; 61f37dbf57SNeel Natu vm_offset_t nptp; /* nested page table */ 62091da2dfSAndriy Gapon uint8_t *iopm_bitmap; /* shared by all vcpus */ 63091da2dfSAndriy Gapon uint8_t *msr_bitmap; /* shared by all vcpus */ 64f37dbf57SNeel Natu struct vm *vm; 65091da2dfSAndriy Gapon }; 66b18ac2d8SNeel Natu 67a0b78f09SPeter Grehan CTASSERT((offsetof(struct svm_softc, nptp) & PAGE_MASK) == 0); 68b18ac2d8SNeel Natu 69b18ac2d8SNeel Natu static __inline struct svm_vcpu * 70b18ac2d8SNeel Natu svm_get_vcpu(struct svm_softc *sc, int vcpu) 71b18ac2d8SNeel Natu { 72b18ac2d8SNeel Natu 73b18ac2d8SNeel Natu return (&(sc->vcpu[vcpu])); 74b18ac2d8SNeel Natu } 75b18ac2d8SNeel Natu 76b18ac2d8SNeel Natu static __inline struct vmcb * 77b18ac2d8SNeel Natu svm_get_vmcb(struct svm_softc *sc, int vcpu) 78b18ac2d8SNeel Natu { 79b18ac2d8SNeel Natu 80b18ac2d8SNeel Natu return (&(sc->vcpu[vcpu].vmcb)); 81b18ac2d8SNeel Natu } 82b18ac2d8SNeel Natu 83b18ac2d8SNeel Natu static __inline struct vmcb_state * 84b18ac2d8SNeel Natu svm_get_vmcb_state(struct svm_softc *sc, int vcpu) 85b18ac2d8SNeel Natu { 86b18ac2d8SNeel Natu 87b18ac2d8SNeel Natu return (&(sc->vcpu[vcpu].vmcb.state)); 88b18ac2d8SNeel Natu } 89b18ac2d8SNeel Natu 90b18ac2d8SNeel Natu static __inline struct vmcb_ctrl * 91b18ac2d8SNeel Natu svm_get_vmcb_ctrl(struct svm_softc *sc, int vcpu) 92b18ac2d8SNeel Natu { 93b18ac2d8SNeel Natu 94b18ac2d8SNeel Natu return (&(sc->vcpu[vcpu].vmcb.ctrl)); 95b18ac2d8SNeel Natu } 96b18ac2d8SNeel Natu 97b18ac2d8SNeel Natu static __inline struct svm_regctx * 98b18ac2d8SNeel Natu svm_get_guest_regctx(struct svm_softc *sc, int vcpu) 99b18ac2d8SNeel Natu { 100b18ac2d8SNeel Natu 101b18ac2d8SNeel Natu return (&(sc->vcpu[vcpu].swctx)); 102b18ac2d8SNeel Natu } 103b18ac2d8SNeel Natu 104af198d88SNeel Natu static __inline void 105af198d88SNeel Natu svm_set_dirty(struct svm_softc *sc, int vcpu, uint32_t dirtybits) 106af198d88SNeel Natu { 107af198d88SNeel Natu struct svm_vcpu *vcpustate; 108af198d88SNeel Natu 109af198d88SNeel Natu vcpustate = svm_get_vcpu(sc, vcpu); 110af198d88SNeel Natu 111af198d88SNeel Natu vcpustate->dirty |= dirtybits; 112af198d88SNeel Natu } 113af198d88SNeel Natu 114b18ac2d8SNeel Natu #endif /* _SVM_SOFTC_H_ */ 115