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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2013 Anish Gupta (akgupt3@gmail.com)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SVM_SOFTC_H_
#define _SVM_SOFTC_H_
#include "x86.h"
#define SVM_IO_BITMAP_SIZE (3 * PAGE_SIZE)
#define SVM_MSR_BITMAP_SIZE (2 * PAGE_SIZE)
struct svm_softc;
struct dbg {
uint32_t rflags_tf; /* saved RFLAGS.TF value when single-stepping a vcpu */
bool popf_sstep; /* indicates that we've stepped over popf */
bool pushf_sstep; /* indicates that we've stepped over pushf */
};
struct asid {
uint64_t gen; /* range is [1, ~0UL] */
uint32_t num; /* range is [1, nasid - 1] */
};
struct svm_vcpu {
struct svm_softc *sc;
struct vcpu *vcpu;
struct vmcb *vmcb; /* hardware saved vcpu context */
struct svm_regctx swctx; /* software saved vcpu context */
uint64_t vmcb_pa; /* VMCB physical address */
uint64_t nextrip; /* next instruction to be executed by guest */
int lastcpu; /* host cpu that the vcpu last ran on */
uint32_t dirty; /* state cache bits that must be cleared */
long eptgen; /* pmap->pm_eptgen when the vcpu last ran */
struct asid asid;
struct vm_mtrr mtrr;
int vcpuid;
struct dbg dbg;
int caps; /* optional vm capabilities */
};
/*
* SVM softc, one per virtual machine.
*/
struct svm_softc {
vm_paddr_t nptp; /* nested page table */
uint8_t *iopm_bitmap; /* shared by all vcpus */
uint8_t *msr_bitmap; /* shared by all vcpus */
struct vm *vm;
};
#define SVM_CTR0(vcpu, format) \
VCPU_CTR0((vcpu)->sc->vm, (vcpu)->vcpuid, format)
#define SVM_CTR1(vcpu, format, p1) \
VCPU_CTR1((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1)
#define SVM_CTR2(vcpu, format, p1, p2) \
VCPU_CTR2((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1, p2)
#define SVM_CTR3(vcpu, format, p1, p2, p3) \
VCPU_CTR3((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1, p2, p3)
#define SVM_CTR4(vcpu, format, p1, p2, p3, p4) \
VCPU_CTR4((vcpu)->sc->vm, (vcpu)->vcpuid, format, p1, p2, p3, p4)
static __inline struct vmcb *
svm_get_vmcb(struct svm_vcpu *vcpu)
{
return (vcpu->vmcb);
}
static __inline struct vmcb_state *
svm_get_vmcb_state(struct svm_vcpu *vcpu)
{
return (&vcpu->vmcb->state);
}
static __inline struct vmcb_ctrl *
svm_get_vmcb_ctrl(struct svm_vcpu *vcpu)
{
return (&vcpu->vmcb->ctrl);
}
static __inline struct svm_regctx *
svm_get_guest_regctx(struct svm_vcpu *vcpu)
{
return (&vcpu->swctx);
}
static __inline void
svm_set_dirty(struct svm_vcpu *vcpu, uint32_t dirtybits)
{
vcpu->dirty |= dirtybits;
}
#endif /* _SVM_SOFTC_H_ */
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