/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2011 NetApp, Inc. * 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, 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 NETAPP, INC ``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 NETAPP, INC OR CONTRIBUTORS 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. */ /* * This file and its contents are supplied under the terms of the * Common Development and Distribution License ("CDDL"), version 1.0. * You may only use this file in accordance with the terms of version * 1.0 of the CDDL. * * A full copy of the text of the CDDL should have accompanied this * source. A copy of the CDDL is also available via the Internet at * http://www.illumos.org/license/CDDL. */ /* This file is dual-licensed; see usr/src/contrib/bhyve/LICENSE */ /* * Copyright 2021 Oxide Computer Company */ #ifndef _VMX_MSR_H_ #define _VMX_MSR_H_ void vmx_msr_init(void); void vmx_msr_guest_init(struct vmx *vmx, int vcpuid); void vmx_msr_guest_enter(struct vmx *vmx, int vcpuid); void vmx_msr_guest_exit(struct vmx *vmx, int vcpuid); vm_msr_result_t vmx_rdmsr(struct vmx *, int, uint32_t, uint64_t *); vm_msr_result_t vmx_wrmsr(struct vmx *, int, uint32_t, uint64_t); int vmx_set_ctlreg(int ctl_reg, int true_ctl_reg, uint32_t ones_mask, uint32_t zeros_mask, uint32_t *retval); /* * According to Section 21.10.4 "Software Access to Related Structures", * changes to data structures pointed to by the VMCS must be made only when * there is no logical processor with a current VMCS that points to the * data structure. * * This pretty much limits us to configuring the MSR bitmap before VMCS * initialization for SMP VMs. Unless of course we do it the hard way - which * would involve some form of synchronization between the vcpus to vmclear * all VMCSs' that point to the bitmap. */ #define MSR_BITMAP_ACCESS_NONE 0x0 #define MSR_BITMAP_ACCESS_READ 0x1 #define MSR_BITMAP_ACCESS_WRITE 0x2 #define MSR_BITMAP_ACCESS_RW (MSR_BITMAP_ACCESS_READ|MSR_BITMAP_ACCESS_WRITE) void vmx_msr_bitmap_initialize(struct vmx *); void vmx_msr_bitmap_destroy(struct vmx *); void vmx_msr_bitmap_change_access(struct vmx *, int, uint_t, int); #define guest_msr_rw(vmx, vcpuid, msr) \ vmx_msr_bitmap_change_access((vmx), (vcpuid), (msr), MSR_BITMAP_ACCESS_RW) #define guest_msr_ro(vmx, vcpuid, msr) \ vmx_msr_bitmap_change_access((vmx), (vcpuid), (msr), MSR_BITMAP_ACCESS_READ) #endif
