13ed34463SSteve Sistare /* 23ed34463SSteve Sistare * VFIO CPR 33ed34463SSteve Sistare * 43ed34463SSteve Sistare * Copyright (c) 2025 Oracle and/or its affiliates. 53ed34463SSteve Sistare * 63ed34463SSteve Sistare * SPDX-License-Identifier: GPL-2.0-or-later 73ed34463SSteve Sistare */ 83ed34463SSteve Sistare 93ed34463SSteve Sistare #ifndef HW_VFIO_VFIO_CPR_H 103ed34463SSteve Sistare #define HW_VFIO_VFIO_CPR_H 113ed34463SSteve Sistare 1254857b08SSteve Sistare #include "migration/misc.h" 13eba1f657SSteve Sistare #include "system/memory.h" 1454857b08SSteve Sistare 1554857b08SSteve Sistare struct VFIOContainer; 163ed34463SSteve Sistare struct VFIOContainerBase; 17c29a65edSSteve Sistare struct VFIOGroup; 1830edcb4dSSteve Sistare struct VFIOPCIDevice; 193ed34463SSteve Sistare 20924c3ccbSZhenzhong Duan typedef int (*dma_map_fn)(const struct VFIOContainerBase *bcontainer, 21924c3ccbSZhenzhong Duan hwaddr iova, ram_addr_t size, void *vaddr, 22924c3ccbSZhenzhong Duan bool readonly, MemoryRegion *mr); 23924c3ccbSZhenzhong Duan 2454857b08SSteve Sistare typedef struct VFIOContainerCPR { 2554857b08SSteve Sistare Error *blocker; 26eba1f657SSteve Sistare bool vaddr_unmapped; 27eba1f657SSteve Sistare NotifierWithReturn transfer_notifier; 28eba1f657SSteve Sistare MemoryListener remap_listener; 2954857b08SSteve Sistare } VFIOContainerCPR; 3054857b08SSteve Sistare 31dac0dd68SSteve Sistare typedef struct VFIODeviceCPR { 32dac0dd68SSteve Sistare Error *mdev_blocker; 33*a434fd8fSSteve Sistare Error *id_blocker; 34dac0dd68SSteve Sistare } VFIODeviceCPR; 3554857b08SSteve Sistare 3654857b08SSteve Sistare bool vfio_legacy_cpr_register_container(struct VFIOContainer *container, 3754857b08SSteve Sistare Error **errp); 3854857b08SSteve Sistare void vfio_legacy_cpr_unregister_container(struct VFIOContainer *container); 3954857b08SSteve Sistare 4054857b08SSteve Sistare int vfio_cpr_reboot_notifier(NotifierWithReturn *notifier, MigrationEvent *e, 4154857b08SSteve Sistare Error **errp); 4254857b08SSteve Sistare 433ed34463SSteve Sistare bool vfio_cpr_register_container(struct VFIOContainerBase *bcontainer, 443ed34463SSteve Sistare Error **errp); 453ed34463SSteve Sistare void vfio_cpr_unregister_container(struct VFIOContainerBase *bcontainer); 463ed34463SSteve Sistare 47c29a65edSSteve Sistare int vfio_cpr_group_get_device_fd(int d, const char *name); 48c29a65edSSteve Sistare 49c29a65edSSteve Sistare bool vfio_cpr_container_match(struct VFIOContainer *container, 50c29a65edSSteve Sistare struct VFIOGroup *group, int fd); 51c29a65edSSteve Sistare 52eba1f657SSteve Sistare void vfio_cpr_giommu_remap(struct VFIOContainerBase *bcontainer, 53eba1f657SSteve Sistare MemoryRegionSection *section); 54eba1f657SSteve Sistare 55eba1f657SSteve Sistare bool vfio_cpr_ram_discard_register_listener( 56eba1f657SSteve Sistare struct VFIOContainerBase *bcontainer, MemoryRegionSection *section); 57eba1f657SSteve Sistare 5830edcb4dSSteve Sistare void vfio_cpr_save_vector_fd(struct VFIOPCIDevice *vdev, const char *name, 5930edcb4dSSteve Sistare int nr, int fd); 6030edcb4dSSteve Sistare int vfio_cpr_load_vector_fd(struct VFIOPCIDevice *vdev, const char *name, 6130edcb4dSSteve Sistare int nr); 6230edcb4dSSteve Sistare void vfio_cpr_delete_vector_fd(struct VFIOPCIDevice *vdev, const char *name, 6330edcb4dSSteve Sistare int nr); 6430edcb4dSSteve Sistare 65031fbb71SSteve Sistare extern const VMStateDescription vfio_cpr_pci_vmstate; 66031fbb71SSteve Sistare 677ed09191SSteve Sistare void vfio_cpr_add_kvm_notifier(void); 687ed09191SSteve Sistare 693ed34463SSteve Sistare #endif /* HW_VFIO_VFIO_CPR_H */ 70