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031fbb7110
Do not reset a vfio-pci device during CPR, and do not complain if the kernel's PCI config space changes for non-emulated bits between the vmstate save and load, which can happen due to ongoing interrupt activity. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/qemu-devel/1749569991-25171-12-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
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* VFIO CPR
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*
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* Copyright (c) 2025 Oracle and/or its affiliates.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef HW_VFIO_VFIO_CPR_H
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#define HW_VFIO_VFIO_CPR_H
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#include "migration/misc.h"
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#include "system/memory.h"
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struct VFIOContainer;
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struct VFIOContainerBase;
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struct VFIOGroup;
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typedef struct VFIOContainerCPR {
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Error *blocker;
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bool vaddr_unmapped;
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NotifierWithReturn transfer_notifier;
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MemoryListener remap_listener;
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int (*saved_dma_map)(const struct VFIOContainerBase *bcontainer,
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hwaddr iova, ram_addr_t size,
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void *vaddr, bool readonly, MemoryRegion *mr);
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} VFIOContainerCPR;
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typedef struct VFIODeviceCPR {
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Error *mdev_blocker;
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} VFIODeviceCPR;
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bool vfio_legacy_cpr_register_container(struct VFIOContainer *container,
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Error **errp);
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void vfio_legacy_cpr_unregister_container(struct VFIOContainer *container);
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int vfio_cpr_reboot_notifier(NotifierWithReturn *notifier, MigrationEvent *e,
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Error **errp);
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bool vfio_cpr_register_container(struct VFIOContainerBase *bcontainer,
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Error **errp);
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void vfio_cpr_unregister_container(struct VFIOContainerBase *bcontainer);
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int vfio_cpr_group_get_device_fd(int d, const char *name);
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bool vfio_cpr_container_match(struct VFIOContainer *container,
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struct VFIOGroup *group, int fd);
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void vfio_cpr_giommu_remap(struct VFIOContainerBase *bcontainer,
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MemoryRegionSection *section);
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bool vfio_cpr_ram_discard_register_listener(
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struct VFIOContainerBase *bcontainer, MemoryRegionSection *section);
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extern const VMStateDescription vfio_cpr_pci_vmstate;
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#endif /* HW_VFIO_VFIO_CPR_H */
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