2 * Copyright (c) 2013 Anish Gupta (akgupt3@gmail.com)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
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.
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.
32 #define SVM_IO_BITMAP_SIZE (3 * PAGE_SIZE)
33 #define SVM_MSR_BITMAP_SIZE (2 * PAGE_SIZE)
36 uint64_t gen; /* range is [1, ~0UL] */
37 uint32_t num; /* range is [1, nasid - 1] */
41 * XXX separate out 'struct vmcb' from 'svm_vcpu' to avoid wasting space
42 * due to VMCB alignment requirements.
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 */
53 } __aligned(PAGE_SIZE);
56 * SVM softc, one per virtual machine.
59 uint8_t iopm_bitmap[SVM_IO_BITMAP_SIZE]; /* shared by all vcpus */
60 uint8_t msr_bitmap[SVM_MSR_BITMAP_SIZE]; /* shared by all vcpus */
61 uint8_t apic_page[VM_MAXCPU][PAGE_SIZE];
62 struct svm_vcpu vcpu[VM_MAXCPU];
63 vm_offset_t nptp; /* nested page table */
65 } __aligned(PAGE_SIZE);
67 CTASSERT((offsetof(struct svm_softc, nptp) & PAGE_MASK) == 0);
69 static __inline struct svm_vcpu *
70 svm_get_vcpu(struct svm_softc *sc, int vcpu)
73 return (&(sc->vcpu[vcpu]));
76 static __inline struct vmcb *
77 svm_get_vmcb(struct svm_softc *sc, int vcpu)
80 return (&(sc->vcpu[vcpu].vmcb));
83 static __inline struct vmcb_state *
84 svm_get_vmcb_state(struct svm_softc *sc, int vcpu)
87 return (&(sc->vcpu[vcpu].vmcb.state));
90 static __inline struct vmcb_ctrl *
91 svm_get_vmcb_ctrl(struct svm_softc *sc, int vcpu)
94 return (&(sc->vcpu[vcpu].vmcb.ctrl));
97 static __inline struct svm_regctx *
98 svm_get_guest_regctx(struct svm_softc *sc, int vcpu)
101 return (&(sc->vcpu[vcpu].swctx));
105 svm_set_dirty(struct svm_softc *sc, int vcpu, uint32_t dirtybits)
107 struct svm_vcpu *vcpustate;
109 vcpustate = svm_get_vcpu(sc, vcpu);
111 vcpustate->dirty |= dirtybits;
114 #endif /* _SVM_SOFTC_H_ */