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/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Hypervisor Maintenance Interrupt header file. * * 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 struct pt_regs; extern long hmi_handle_debugtrig(struct pt_regs *regs); #endif /* __ASM_PPC64_HMI_H__ */
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