blob: b206e95863a63d35324778695300f668a1050327 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/*
* Alternate p2m HVM
* Copyright (c) 2014, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ASM_X86_ALTP2M_H
#define __ASM_X86_ALTP2M_H
#ifdef CONFIG_HVM
#include <xen/types.h>
#include <xen/sched.h> /* for struct vcpu, struct domain */
#include <asm/hvm/vcpu.h> /* for vcpu_altp2m */
/* Alternate p2m HVM on/off per domain */
static inline bool altp2m_active(const struct domain *d)
{
return d->arch.altp2m_active;
}
/* Alternate p2m VCPU */
void altp2m_vcpu_initialise(struct vcpu *v);
void altp2m_vcpu_destroy(struct vcpu *v);
int altp2m_vcpu_enable_ve(struct vcpu *v, gfn_t gfn);
void altp2m_vcpu_disable_ve(struct vcpu *v);
static inline uint16_t altp2m_vcpu_idx(const struct vcpu *v)
{
return vcpu_altp2m(v).p2midx;
}
#else
static inline bool altp2m_active(const struct domain *d)
{
return false;
}
/* Only declaration is needed. DCE will optimise it out when linking. */
uint16_t altp2m_vcpu_idx(const struct vcpu *v);
void altp2m_vcpu_disable_ve(struct vcpu *v);
#endif
#endif /* __ASM_X86_ALTP2M_H */
|
