freebsd-dev/sys/amd64/vmm/vmm_host.h
Pedro F. Giffuni c49761dd57 sys/amd64: further adoption of SPDX licensing ID tags.
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.
2017-11-27 15:03:07 +00:00

86 lines
2.4 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2012 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 _VMM_HOST_H_
#define _VMM_HOST_H_
#ifndef _KERNEL
#error "no user-serviceable parts inside"
#endif
struct xsave_limits {
int xsave_enabled;
uint64_t xcr0_allowed;
uint32_t xsave_max_size;
};
void vmm_host_state_init(void);
uint64_t vmm_get_host_pat(void);
uint64_t vmm_get_host_efer(void);
uint64_t vmm_get_host_cr0(void);
uint64_t vmm_get_host_cr4(void);
uint64_t vmm_get_host_xcr0(void);
uint64_t vmm_get_host_datasel(void);
uint64_t vmm_get_host_codesel(void);
uint64_t vmm_get_host_tsssel(void);
uint64_t vmm_get_host_fsbase(void);
uint64_t vmm_get_host_idtrbase(void);
const struct xsave_limits *vmm_get_xsave_limits(void);
/*
* Inline access to host state that is used on every VM entry
*/
static __inline uint64_t
vmm_get_host_trbase(void)
{
return ((uint64_t)PCPU_GET(tssp));
}
static __inline uint64_t
vmm_get_host_gdtrbase(void)
{
return ((uint64_t)&gdt[NGDT * curcpu]);
}
struct pcpu;
extern struct pcpu __pcpu[];
static __inline uint64_t
vmm_get_host_gsbase(void)
{
return ((uint64_t)&__pcpu[curcpu]);
}
#endif