]>
Commit | Line | Data |
---|---|---|
fd7bacbc MS |
1 | /* |
2 | * Hypervisor Maintenance Interrupt header file. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program. | |
16 | * | |
17 | * Copyright 2015 IBM Corporation | |
18 | * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> | |
19 | */ | |
20 | ||
21 | #ifndef __ASM_PPC64_HMI_H__ | |
22 | #define __ASM_PPC64_HMI_H__ | |
23 | ||
7c379526 | 24 | #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE |
fd7bacbc MS |
25 | |
26 | #define CORE_TB_RESYNC_REQ_BIT 63 | |
27 | #define MAX_SUBCORE_PER_CORE 4 | |
28 | ||
29 | /* | |
30 | * sibling_subcore_state structure is used to co-ordinate all threads | |
31 | * during HMI to avoid TB corruption. This structure is allocated once | |
32 | * per each core and shared by all threads on that core. | |
33 | */ | |
34 | struct sibling_subcore_state { | |
35 | unsigned long flags; | |
36 | u8 in_guest[MAX_SUBCORE_PER_CORE]; | |
37 | }; | |
38 | ||
39 | extern void wait_for_subcore_guest_exit(void); | |
40 | extern void wait_for_tb_resync(void); | |
41 | #else | |
42 | static inline void wait_for_subcore_guest_exit(void) { } | |
43 | static inline void wait_for_tb_resync(void) { } | |
44 | #endif | |
45 | #endif /* __ASM_PPC64_HMI_H__ */ |