1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Helper functions for KVM guest address space mapping code 4 * 5 * Copyright IBM Corp. 2025 6 */ 7 8 #ifndef _ASM_S390_GMAP_HELPERS_H 9 #define _ASM_S390_GMAP_HELPERS_H 10 11 void gmap_helper_zap_one_page(struct mm_struct *mm, unsigned long vmaddr); 12 void gmap_helper_discard(struct mm_struct *mm, unsigned long vmaddr, unsigned long end); 13 int gmap_helper_disable_cow_sharing(void); 14 void gmap_helper_try_set_pte_unused(struct mm_struct *mm, unsigned long vmaddr); 15 pte_t *try_get_locked_pte(struct mm_struct *mm, unsigned long addr, spinlock_t **ptl); 16 17 #endif /* _ASM_S390_GMAP_HELPERS_H */ 18