2 * Copyright (c) 2011 NetApp, Inc.
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, 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.
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
32 uint32_t vmx_revision(void);
34 int vmx_set_ctlreg(int ctl_reg, int true_ctl_reg, uint32_t ones_mask,
35 uint32_t zeros_mask, uint32_t *retval);
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
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.
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);