c49761dd57
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
73 lines
2.9 KiB
C
73 lines
2.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2011 NetApp, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _VMX_MSR_H_
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#define _VMX_MSR_H_
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struct vmx;
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void vmx_msr_init(void);
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void vmx_msr_guest_init(struct vmx *vmx, int vcpuid);
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void vmx_msr_guest_enter(struct vmx *vmx, int vcpuid);
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void vmx_msr_guest_exit(struct vmx *vmx, int vcpuid);
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int vmx_rdmsr(struct vmx *, int vcpuid, u_int num, uint64_t *val, bool *retu);
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int vmx_wrmsr(struct vmx *, int vcpuid, u_int num, uint64_t val, bool *retu);
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uint32_t vmx_revision(void);
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int vmx_set_ctlreg(int ctl_reg, int true_ctl_reg, uint32_t ones_mask,
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uint32_t zeros_mask, uint32_t *retval);
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/*
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* According to Section 21.10.4 "Software Access to Related Structures",
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* changes to data structures pointed to by the VMCS must be made only when
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* there is no logical processor with a current VMCS that points to the
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* data structure.
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*
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* This pretty much limits us to configuring the MSR bitmap before VMCS
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* initialization for SMP VMs. Unless of course we do it the hard way - which
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* would involve some form of synchronization between the vcpus to vmclear
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* all VMCSs' that point to the bitmap.
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*/
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#define MSR_BITMAP_ACCESS_NONE 0x0
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#define MSR_BITMAP_ACCESS_READ 0x1
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#define MSR_BITMAP_ACCESS_WRITE 0x2
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#define MSR_BITMAP_ACCESS_RW (MSR_BITMAP_ACCESS_READ|MSR_BITMAP_ACCESS_WRITE)
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void msr_bitmap_initialize(char *bitmap);
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int msr_bitmap_change_access(char *bitmap, u_int msr, int access);
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#define guest_msr_rw(vmx, msr) \
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msr_bitmap_change_access((vmx)->msr_bitmap, (msr), MSR_BITMAP_ACCESS_RW)
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#define guest_msr_ro(vmx, msr) \
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msr_bitmap_change_access((vmx)->msr_bitmap, (msr), MSR_BITMAP_ACCESS_READ)
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#endif
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