mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
c3498942a5
code. There are only a handful of MSRs common between the two so there isn't too much duplicate functionality. The VT-x code has the following types of MSRs: - MSRs that are unconditionally saved/restored on every guest/host context switch (e.g., MSR_GSBASE). - MSRs that are restored to guest values on entry to vmx_run() and saved before returning. This is an optimization for MSRs that are not used in host kernel context (e.g., MSR_KGSBASE). - MSRs that are emulated and every access by the guest causes a trap into the hypervisor (e.g., MSR_IA32_MISC_ENABLE). Reviewed by: grehan
37 lines
1.5 KiB
C
37 lines
1.5 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _XMSR_H_
|
|
#define _XMSR_H_
|
|
|
|
int init_msr(void);
|
|
int emulate_wrmsr(struct vmctx *ctx, int vcpu, uint32_t code, uint64_t val);
|
|
int emulate_rdmsr(struct vmctx *ctx, int vcpu, uint32_t code, uint64_t *val);
|
|
|
|
#endif
|