vfio/quirks: Add quirk reset callback
Quirks can be self modifying, provide a hook to allow them to cleanup on device reset if desired. Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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@ -1694,6 +1694,21 @@ void vfio_bar_quirk_finalize(VFIOPCIDevice *vdev, int nr)
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/*
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* Reset quirks
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*/
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void vfio_quirk_reset(VFIOPCIDevice *vdev)
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{
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int i;
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for (i = 0; i < PCI_ROM_SLOT; i++) {
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VFIOQuirk *quirk;
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VFIOBAR *bar = &vdev->bars[i];
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QLIST_FOREACH(quirk, &bar->quirks, next) {
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if (quirk->reset) {
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quirk->reset(vdev, quirk);
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}
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}
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}
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}
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/*
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* AMD Radeon PCI config reset, based on Linux:
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@ -2207,6 +2207,8 @@ static void vfio_pci_post_reset(VFIOPCIDevice *vdev)
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vdev->vbasedev.name, nr);
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}
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}
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vfio_quirk_reset(vdev);
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}
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static bool vfio_pci_host_match(PCIHostDeviceAddress *addr, const char *name)
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@ -29,6 +29,7 @@ typedef struct VFIOQuirk {
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void *data;
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int nr_mem;
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MemoryRegion *mem;
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void (*reset)(struct VFIOPCIDevice *vdev, struct VFIOQuirk *quirk);
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} VFIOQuirk;
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typedef struct VFIOBAR {
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@ -167,6 +168,7 @@ void vfio_bar_quirk_exit(VFIOPCIDevice *vdev, int nr);
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void vfio_bar_quirk_finalize(VFIOPCIDevice *vdev, int nr);
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void vfio_setup_resetfn_quirk(VFIOPCIDevice *vdev);
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int vfio_add_virt_caps(VFIOPCIDevice *vdev, Error **errp);
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void vfio_quirk_reset(VFIOPCIDevice *vdev);
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extern const PropertyInfo qdev_prop_nv_gpudirect_clique;
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