[PATCH 03/27] vfio: move more cleanup into vfio_pci_put_device()

John Levon posted 27 patches 7 months ago
Maintainers: John Levon <john.levon@nutanix.com>, Thanos Makatos <thanos.makatos@nutanix.com>, Alex Williamson <alex.williamson@redhat.com>, "Cédric Le Goater" <clg@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, Stefano Garzarella <sgarzare@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Peter Xu <peterx@redhat.com>, David Hildenbrand <david@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>
There is a newer version of this series
[PATCH 03/27] vfio: move more cleanup into vfio_pci_put_device()
Posted by John Levon 7 months ago
All of the cleanup can be done in the same place, and vfio-user will
want to do the same.

Signed-off-by: John Levon <john.levon@nutanix.com>
---
 hw/vfio/pci.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index a1bfdfe375..d96b55f80c 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2854,6 +2854,18 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
 
 static void vfio_pci_put_device(VFIOPCIDevice *vdev)
 {
+    vfio_display_finalize(vdev);
+    vfio_bars_finalize(vdev);
+    g_free(vdev->emulated_config_bits);
+    g_free(vdev->rom);
+    /*
+     * XXX Leaking igd_opregion is not an oversight, we can't remove the
+     * fw_cfg entry therefore leaking this allocation seems like the safest
+     * option.
+     *
+     * g_free(vdev->igd_opregion);
+     */
+
     vfio_device_detach(&vdev->vbasedev);
 
     g_free(vdev->vbasedev.name);
@@ -3302,17 +3314,6 @@ static void vfio_instance_finalize(Object *obj)
 {
     VFIOPCIDevice *vdev = VFIO_PCI_BASE(obj);
 
-    vfio_display_finalize(vdev);
-    vfio_bars_finalize(vdev);
-    g_free(vdev->emulated_config_bits);
-    g_free(vdev->rom);
-    /*
-     * XXX Leaking igd_opregion is not an oversight, we can't remove the
-     * fw_cfg entry therefore leaking this allocation seems like the safest
-     * option.
-     *
-     * g_free(vdev->igd_opregion);
-     */
     vfio_pci_put_device(vdev);
 }
 
-- 
2.43.0
Re: [PATCH 03/27] vfio: move more cleanup into vfio_pci_put_device()
Posted by Cédric Le Goater 7 months ago
On 5/15/25 17:43, John Levon wrote:
> All of the cleanup can be done in the same place, and vfio-user will
> want to do the same.
> 
> Signed-off-by: John Levon <john.levon@nutanix.com>


Reviewed-by: Cédric Le Goater <clg@redhat.com>

Thanks,

C.


> ---
>   hw/vfio/pci.c | 23 ++++++++++++-----------
>   1 file changed, 12 insertions(+), 11 deletions(-)
> 
> diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
> index a1bfdfe375..d96b55f80c 100644
> --- a/hw/vfio/pci.c
> +++ b/hw/vfio/pci.c
> @@ -2854,6 +2854,18 @@ static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
>   
>   static void vfio_pci_put_device(VFIOPCIDevice *vdev)
>   {
> +    vfio_display_finalize(vdev);
> +    vfio_bars_finalize(vdev);
> +    g_free(vdev->emulated_config_bits);
> +    g_free(vdev->rom);
> +    /*
> +     * XXX Leaking igd_opregion is not an oversight, we can't remove the
> +     * fw_cfg entry therefore leaking this allocation seems like the safest
> +     * option.
> +     *
> +     * g_free(vdev->igd_opregion);
> +     */
> +
>       vfio_device_detach(&vdev->vbasedev);
>   
>       g_free(vdev->vbasedev.name);
> @@ -3302,17 +3314,6 @@ static void vfio_instance_finalize(Object *obj)
>   {
>       VFIOPCIDevice *vdev = VFIO_PCI_BASE(obj);
>   
> -    vfio_display_finalize(vdev);
> -    vfio_bars_finalize(vdev);
> -    g_free(vdev->emulated_config_bits);
> -    g_free(vdev->rom);
> -    /*
> -     * XXX Leaking igd_opregion is not an oversight, we can't remove the
> -     * fw_cfg entry therefore leaking this allocation seems like the safest
> -     * option.
> -     *
> -     * g_free(vdev->igd_opregion);
> -     */
>       vfio_pci_put_device(vdev);
>   }
>