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| author | Steve Sistare <steven.sistare@oracle.com> | 2025-07-02 14:58:38 -0700 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2025-07-03 13:42:28 +0200 |
| commit | 30edcb4d4e7a265c2912ca6978b150c7c75b654f (patch) | |
| tree | caacd9704779bf5500090ac091ddbf76666990bd /include/hw | |
| parent | 3f2a36d0ef6339ce78e107959da81f76283582f7 (diff) | |
| download | qemu-30edcb4d4e7a265c2912ca6978b150c7c75b654f.zip qemu-30edcb4d4e7a265c2912ca6978b150c7c75b654f.tar.gz qemu-30edcb4d4e7a265c2912ca6978b150c7c75b654f.tar.bz2 | |
vfio-pci: preserve MSI
Save the MSI message area as part of vfio-pci vmstate, and preserve the
interrupt and notifier eventfd's. migrate_incoming loads the MSI data,
then the vfio-pci post_load handler finds the eventfds in CPR state,
rebuilds vector data structures, and attaches the interrupts to the new
KVM instance.
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-2-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/vfio/vfio-cpr.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/hw/vfio/vfio-cpr.h b/include/hw/vfio/vfio-cpr.h index dbb2a16..f21578d 100644 --- a/include/hw/vfio/vfio-cpr.h +++ b/include/hw/vfio/vfio-cpr.h @@ -15,6 +15,7 @@ struct VFIOContainer; struct VFIOContainerBase; struct VFIOGroup; +struct VFIOPCIDevice; typedef int (*dma_map_fn)(const struct VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, void *vaddr, @@ -53,6 +54,13 @@ void vfio_cpr_giommu_remap(struct VFIOContainerBase *bcontainer, 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; #endif /* HW_VFIO_VFIO_CPR_H */ |