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/*
* VFIO CPR
*
* Copyright (c) 2025 Oracle and/or its affiliates.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef HW_VFIO_VFIO_CPR_H
#define HW_VFIO_VFIO_CPR_H
#include "migration/misc.h"
#include "system/memory.h"
struct VFIOContainer;
struct VFIOContainerBase;
struct VFIOGroup;
struct VFIODevice;
struct VFIOPCIDevice;
struct VFIOIOMMUFDContainer;
struct IOMMUFDBackend;
typedef int (*dma_map_fn)(const struct VFIOContainerBase *bcontainer,
hwaddr iova, ram_addr_t size, void *vaddr,
bool readonly, MemoryRegion *mr);
typedef struct VFIOContainerCPR {
Error *blocker;
bool vaddr_unmapped;
NotifierWithReturn transfer_notifier;
MemoryListener remap_listener;
} VFIOContainerCPR;
typedef struct VFIODeviceCPR {
Error *mdev_blocker;
Error *id_blocker;
uint32_t hwpt_id;
uint32_t ioas_id;
} VFIODeviceCPR;
bool vfio_legacy_cpr_register_container(struct VFIOContainer *container,
Error **errp);
void vfio_legacy_cpr_unregister_container(struct VFIOContainer *container);
int vfio_cpr_reboot_notifier(NotifierWithReturn *notifier, MigrationEvent *e,
Error **errp);
bool vfio_iommufd_cpr_register_container(struct VFIOIOMMUFDContainer *container,
Error **errp);
void vfio_iommufd_cpr_unregister_container(
struct VFIOIOMMUFDContainer *container);
bool vfio_iommufd_cpr_register_iommufd(struct IOMMUFDBackend *be, Error **errp);
void vfio_iommufd_cpr_unregister_iommufd(struct IOMMUFDBackend *be);
void vfio_iommufd_cpr_register_device(struct VFIODevice *vbasedev);
void vfio_iommufd_cpr_unregister_device(struct VFIODevice *vbasedev);
void vfio_cpr_load_device(struct VFIODevice *vbasedev);
int vfio_cpr_group_get_device_fd(int d, const char *name);
bool vfio_cpr_container_match(struct VFIOContainer *container,
struct VFIOGroup *group, int fd);
void vfio_cpr_giommu_remap(struct VFIOContainerBase *bcontainer,
MemoryRegionSection *section);
bool vfio_cpr_ram_discard_register_listener(
struct VFIOContainerBase *bcontainer, MemoryRegionSection *section);
void vfio_cpr_save_vector_fd(struct VFIOPCIDevice *vdev, const char *name,
int nr, int fd);
int vfio_cpr_load_vector_fd(struct VFIOPCIDevice *vdev, const char *name,
int nr);
void vfio_cpr_delete_vector_fd(struct VFIOPCIDevice *vdev, const char *name,
int nr);
extern const VMStateDescription vfio_cpr_pci_vmstate;
extern const VMStateDescription vmstate_cpr_vfio_devices;
void vfio_cpr_add_kvm_notifier(void);
#endif /* HW_VFIO_VFIO_CPR_H */
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