Commit 469d02de authored by Alex Williamson's avatar Alex Williamson
Browse files

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: default avatarEric Auger <eric.auger@redhat.com>
Reviewed-by: default avatarPeter Xu <peterx@redhat.com>
Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent bcf3c3d0
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+15 −0
Original line number Diff line number Diff line
@@ -1694,6 +1694,21 @@ void vfio_bar_quirk_finalize(VFIOPCIDevice *vdev, int nr)
/*
 * Reset quirks
 */
void vfio_quirk_reset(VFIOPCIDevice *vdev)
{
    int i;

    for (i = 0; i < PCI_ROM_SLOT; i++) {
        VFIOQuirk *quirk;
        VFIOBAR *bar = &vdev->bars[i];

        QLIST_FOREACH(quirk, &bar->quirks, next) {
            if (quirk->reset) {
                quirk->reset(vdev, quirk);
            }
        }
    }
}

/*
 * AMD Radeon PCI config reset, based on Linux:
+2 −0
Original line number Diff line number Diff line
@@ -2207,6 +2207,8 @@ static void vfio_pci_post_reset(VFIOPCIDevice *vdev)
                         vdev->vbasedev.name, nr);
        }
    }

    vfio_quirk_reset(vdev);
}

static bool vfio_pci_host_match(PCIHostDeviceAddress *addr, const char *name)
+2 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ typedef struct VFIOQuirk {
    void *data;
    int nr_mem;
    MemoryRegion *mem;
    void (*reset)(struct VFIOPCIDevice *vdev, struct VFIOQuirk *quirk);
} VFIOQuirk;

typedef struct VFIOBAR {
@@ -167,6 +168,7 @@ void vfio_bar_quirk_exit(VFIOPCIDevice *vdev, int nr);
void vfio_bar_quirk_finalize(VFIOPCIDevice *vdev, int nr);
void vfio_setup_resetfn_quirk(VFIOPCIDevice *vdev);
int vfio_add_virt_caps(VFIOPCIDevice *vdev, Error **errp);
void vfio_quirk_reset(VFIOPCIDevice *vdev);

extern const PropertyInfo qdev_prop_nv_gpudirect_clique;