svm_softc.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    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  * $FreeBSD$
   29  */
   30 
   31 #ifndef _SVM_SOFTC_H_
   32 #define _SVM_SOFTC_H_
   33 
   34 #include "x86.h"
   35 
   36 #define SVM_IO_BITMAP_SIZE      (3 * PAGE_SIZE)
   37 #define SVM_MSR_BITMAP_SIZE     (2 * PAGE_SIZE)
   38 
   39 struct svm_softc;
   40 
   41 struct asid {
   42         uint64_t        gen;    /* range is [1, ~0UL] */
   43         uint32_t        num;    /* range is [1, nasid - 1] */
   44 };
   45 
   46 struct svm_vcpu {
   47         struct svm_softc *sc;
   48         struct vcpu     *vcpu;
   49         struct vmcb     *vmcb;   /* hardware saved vcpu context */
   50         struct svm_regctx swctx; /* software saved vcpu context */
   51         uint64_t        vmcb_pa; /* VMCB physical address */
   52         uint64_t        nextrip; /* next instruction to be executed by guest */
   53         int             lastcpu; /* host cpu that the vcpu last ran on */
   54         uint32_t        dirty;   /* state cache bits that must be cleared */
   55         long            eptgen;  /* pmap->pm_eptgen when the vcpu last ran */
   56         struct asid     asid;
   57         struct vm_mtrr  mtrr;
   58         int             vcpuid;
   59 };
   60 
   61 /*
   62  * SVM softc, one per virtual machine.
   63  */
   64 struct svm_softc {
   65         vm_paddr_t      nptp;                       /* nested page table */
   66         uint8_t         *iopm_bitmap;    /* shared by all vcpus */
   67         uint8_t         *msr_bitmap;    /* shared by all vcpus */
   68         struct vm       *vm;
   69 };
   70 
   71 #define SVM_CTR0(vcpu, format)                                          \
   72         VCPU_CTR0((vcpu)->sc->vm, (vcpu)->vcpuid, format)
   73 
   74 #define SVM_CTR1(vcpu, format, p1)                                      \
   75         VCPU_CTR1((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1)
   76 
   77 #define SVM_CTR2(vcpu, format, p1, p2)                                  \
   78         VCPU_CTR2((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1, p2)
   79 
   80 #define SVM_CTR3(vcpu, format, p1, p2, p3)                              \
   81         VCPU_CTR3((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1, p2, p3)
   82 
   83 #define SVM_CTR4(vcpu, format, p1, p2, p3, p4)                          \
   84         VCPU_CTR4((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1, p2, p3, p4)
   85 
   86 static __inline struct vmcb *
   87 svm_get_vmcb(struct svm_vcpu *vcpu)
   88 {
   89 
   90         return (vcpu->vmcb);
   91 }
   92 
   93 static __inline struct vmcb_state *
   94 svm_get_vmcb_state(struct svm_vcpu *vcpu)
   95 {
   96 
   97         return (&vcpu->vmcb->state);
   98 }
   99 
  100 static __inline struct vmcb_ctrl *
  101 svm_get_vmcb_ctrl(struct svm_vcpu *vcpu)
  102 {
  103 
  104         return (&vcpu->vmcb->ctrl);
  105 }
  106 
  107 static __inline struct svm_regctx *
  108 svm_get_guest_regctx(struct svm_vcpu *vcpu)
  109 {
  110 
  111         return (&vcpu->swctx);
  112 }
  113 
  114 static __inline void
  115 svm_set_dirty(struct svm_vcpu *vcpu, uint32_t dirtybits)
  116 {
  117 
  118         vcpu->dirty |= dirtybits;
  119 }
  120 
  121 #endif /* _SVM_SOFTC_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/amd64/vmm/amd/svm_softc.h

FreeBSD/Linux Kernel Cross Reference
sys/amd64/vmm/amd/svm_softc.h