1 /* 2 * VFIO CPR 3 * 4 * Copyright (c) 2025 Oracle and/or its affiliates. 5 * 6 * SPDX-License-Identifier: GPL-2.0-or-later 7 */ 8 9 #ifndef HW_VFIO_VFIO_CPR_H 10 #define HW_VFIO_VFIO_CPR_H 11 12 #include "migration/misc.h" 13 #include "system/memory.h" 14 15 struct VFIOContainer; 16 struct VFIOContainerBase; 17 struct VFIOGroup; 18 19 typedef struct VFIOContainerCPR { 20 Error *blocker; 21 bool vaddr_unmapped; 22 NotifierWithReturn transfer_notifier; 23 MemoryListener remap_listener; 24 int (*saved_dma_map)(const struct VFIOContainerBase *bcontainer, 25 hwaddr iova, ram_addr_t size, 26 void *vaddr, bool readonly, MemoryRegion *mr); 27 } VFIOContainerCPR; 28 29 typedef struct VFIODeviceCPR { 30 Error *mdev_blocker; 31 } VFIODeviceCPR; 32 33 bool vfio_legacy_cpr_register_container(struct VFIOContainer *container, 34 Error **errp); 35 void vfio_legacy_cpr_unregister_container(struct VFIOContainer *container); 36 37 int vfio_cpr_reboot_notifier(NotifierWithReturn *notifier, MigrationEvent *e, 38 Error **errp); 39 40 bool vfio_cpr_register_container(struct VFIOContainerBase *bcontainer, 41 Error **errp); 42 void vfio_cpr_unregister_container(struct VFIOContainerBase *bcontainer); 43 44 int vfio_cpr_group_get_device_fd(int d, const char *name); 45 46 bool vfio_cpr_container_match(struct VFIOContainer *container, 47 struct VFIOGroup *group, int fd); 48 49 void vfio_cpr_giommu_remap(struct VFIOContainerBase *bcontainer, 50 MemoryRegionSection *section); 51 52 bool vfio_cpr_ram_discard_register_listener( 53 struct VFIOContainerBase *bcontainer, MemoryRegionSection *section); 54 55 extern const VMStateDescription vfio_cpr_pci_vmstate; 56 57 #endif /* HW_VFIO_VFIO_CPR_H */ 58