1 /*- 2 * Copyright (c) 2011 NetApp, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _VMX_MSR_H_ 30 #define _VMX_MSR_H_ 31 32 uint32_t vmx_revision(void); 33 34 int vmx_set_ctlreg(int ctl_reg, int true_ctl_reg, uint32_t ones_mask, 35 uint32_t zeros_mask, uint32_t *retval); 36 37 /* 38 * According to Section 21.10.4 "Software Access to Related Structures", 39 * changes to data structures pointed to by the VMCS must be made only when 40 * there is no logical processor with a current VMCS that points to the 41 * data structure. 42 * 43 * This pretty much limits us to configuring the MSR bitmap before VMCS 44 * initialization for SMP VMs. Unless of course we do it the hard way - which 45 * would involve some form of synchronization between the vcpus to vmclear 46 * all VMCSs' that point to the bitmap. 47 */ 48 #define MSR_BITMAP_ACCESS_NONE 0x0 49 #define MSR_BITMAP_ACCESS_READ 0x1 50 #define MSR_BITMAP_ACCESS_WRITE 0x2 51 #define MSR_BITMAP_ACCESS_RW (MSR_BITMAP_ACCESS_READ|MSR_BITMAP_ACCESS_WRITE) 52 void msr_bitmap_initialize(char *bitmap); 53 int msr_bitmap_change_access(char *bitmap, u_int msr, int access); 54 55 #endif 56