svm_softc.h revision 271203
1249967Sneel/*- 2249967Sneel * Copyright (c) 2013 Anish Gupta (akgupt3@gmail.com) 3249967Sneel * All rights reserved. 4249967Sneel * 5249967Sneel * Redistribution and use in source and binary forms, with or without 6249967Sneel * modification, are permitted provided that the following conditions 7249967Sneel * are met: 8249967Sneel * 1. Redistributions of source code must retain the above copyright 9249967Sneel * notice unmodified, this list of conditions, and the following 10249967Sneel * disclaimer. 11249967Sneel * 2. Redistributions in binary form must reproduce the above copyright 12249967Sneel * notice, this list of conditions and the following disclaimer in the 13249967Sneel * documentation and/or other materials provided with the distribution. 14249967Sneel * 15249967Sneel * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16249967Sneel * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17249967Sneel * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18249967Sneel * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19249967Sneel * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20249967Sneel * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21249967Sneel * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22249967Sneel * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23249967Sneel * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24249967Sneel * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25249967Sneel * 26249967Sneel * $FreeBSD: projects/bhyve_svm/sys/amd64/vmm/amd/svm_softc.h 271203 2014-09-06 19:02:52Z neel $ 27249967Sneel */ 28249967Sneel 29249967Sneel#ifndef _SVM_SOFTC_H_ 30249967Sneel#define _SVM_SOFTC_H_ 31249967Sneel 32249967Sneel#define SVM_IO_BITMAP_SIZE (3 * PAGE_SIZE) 33249967Sneel#define SVM_MSR_BITMAP_SIZE (2 * PAGE_SIZE) 34249967Sneel 35271203Sneelstruct asid { 36271203Sneel uint64_t gen; /* range is [1, ~0UL] */ 37271203Sneel uint32_t num; /* range is [1, nasid - 1] */ 38271203Sneel}; 39271203Sneel 40249967Sneel/* 41249967Sneel * svm_vpcu contains SVM VMCB state and vcpu register state. 42249967Sneel */ 43249967Sneelstruct svm_vcpu { 44271203Sneel struct vmcb vmcb; /* hardware saved vcpu context */ 45271203Sneel struct svm_regctx swctx; /* software saved vcpu context */ 46271203Sneel uint64_t vmcb_pa; /* VMCB physical address */ 47271203Sneel uint64_t loop; /* loop count for vcpu */ 48271203Sneel int lastcpu; /* host cpu that the vcpu last ran on */ 49271203Sneel uint32_t dirty; /* state cache bits that must be cleared */ 50271203Sneel long eptgen; /* pmap->pm_eptgen when the vcpu last ran */ 51271203Sneel struct asid asid; 52249967Sneel} __aligned(PAGE_SIZE); 53249967Sneel 54249967Sneel/* 55249967Sneel * SVM softc, one per virtual machine. 56249967Sneel */ 57249967Sneelstruct svm_softc { 58249967Sneel /* 59249967Sneel * IO permission map, VMCB.ctrl.iopm_base_pa should point to this. 60249967Sneel * If a bit is set, access to I/O port is intercepted. 61249967Sneel */ 62249967Sneel uint8_t iopm_bitmap[SVM_IO_BITMAP_SIZE]; 63249967Sneel 64249967Sneel /* 65249967Sneel * MSR permission bitmap, VMCB.ctrl.msrpm_base_pa should point to this. 66249967Sneel * Two bits are used for each MSR with the LSB used for read access 67249967Sneel * and the MSB used for write access. A value of '1' indicates that 68249967Sneel * the operation is intercepted. 69249967Sneel */ 70249967Sneel uint8_t msr_bitmap[SVM_MSR_BITMAP_SIZE]; 71249967Sneel 72267003Sgrehan uint8_t apic_page[VM_MAXCPU][PAGE_SIZE]; 73249967Sneel /* Nested Paging */ 74259579Sgrehan vm_offset_t nptp; 75249967Sneel 76249967Sneel /* Virtual machine pointer. */ 77249967Sneel struct vm *vm; 78249967Sneel 79249967Sneel /* Guest VCPU h/w and s/w context. */ 80249967Sneel struct svm_vcpu vcpu[VM_MAXCPU]; 81249967Sneel 82249967Sneel uint32_t svm_feature; /* SVM features from CPUID.*/ 83249967Sneel 84249967Sneel int vcpu_cnt; /* number of VCPUs for this guest.*/ 85249967Sneel} __aligned(PAGE_SIZE); 86249967Sneel 87259579SgrehanCTASSERT((offsetof(struct svm_softc, nptp) & PAGE_MASK) == 0); 88249967Sneel 89249967Sneelstatic __inline struct svm_vcpu * 90249967Sneelsvm_get_vcpu(struct svm_softc *sc, int vcpu) 91249967Sneel{ 92249967Sneel 93249967Sneel return (&(sc->vcpu[vcpu])); 94249967Sneel} 95249967Sneel 96249967Sneelstatic __inline struct vmcb * 97249967Sneelsvm_get_vmcb(struct svm_softc *sc, int vcpu) 98249967Sneel{ 99249967Sneel 100249967Sneel return (&(sc->vcpu[vcpu].vmcb)); 101249967Sneel} 102249967Sneel 103249967Sneelstatic __inline struct vmcb_state * 104249967Sneelsvm_get_vmcb_state(struct svm_softc *sc, int vcpu) 105249967Sneel{ 106249967Sneel 107249967Sneel return (&(sc->vcpu[vcpu].vmcb.state)); 108249967Sneel} 109249967Sneel 110249967Sneelstatic __inline struct vmcb_ctrl * 111249967Sneelsvm_get_vmcb_ctrl(struct svm_softc *sc, int vcpu) 112249967Sneel{ 113249967Sneel 114249967Sneel return (&(sc->vcpu[vcpu].vmcb.ctrl)); 115249967Sneel} 116249967Sneel 117249967Sneelstatic __inline struct svm_regctx * 118249967Sneelsvm_get_guest_regctx(struct svm_softc *sc, int vcpu) 119249967Sneel{ 120249967Sneel 121249967Sneel return (&(sc->vcpu[vcpu].swctx)); 122249967Sneel} 123249967Sneel 124249967Sneelvoid svm_dump_vmcb(struct svm_softc *svm_sc, int vcpu); 125249967Sneel#endif /* _SVM_SOFTC_H_ */ 126