| /* |
| * 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__ */ |
