| /* | |
| * Hypervisor Maintenance Interrupt header file. | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation; either version 2 of the License, or | |
| * (at your option) any later version. | |
| * | |
| * This program is distributed in the hope that 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. | |
| * | |
| * Copyright 2015 IBM Corporation | |
| * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> | |
| */ | |
| #ifndef __ASM_PPC64_HMI_H__ | |
| #define __ASM_PPC64_HMI_H__ | |
| #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE | |
| #define CORE_TB_RESYNC_REQ_BIT 63 | |
| #define MAX_SUBCORE_PER_CORE 4 | |
| /* | |
| * sibling_subcore_state structure is used to co-ordinate all threads | |
| * during HMI to avoid TB corruption. This structure is allocated once | |
| * per each core and shared by all threads on that core. | |
| */ | |
| struct sibling_subcore_state { | |
| unsigned long flags; | |
| u8 in_guest[MAX_SUBCORE_PER_CORE]; | |
| }; | |
| extern void wait_for_subcore_guest_exit(void); | |
| extern void wait_for_tb_resync(void); | |
| #else | |
| static inline void wait_for_subcore_guest_exit(void) { } | |
| static inline void wait_for_tb_resync(void) { } | |
| #endif | |
| #endif /* __ASM_PPC64_HMI_H__ */ |