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hw/vfio: add ramfb migration support

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Add a "VFIODisplay" subsection whenever "x-ramfb-migrate" is turned on.

Turn it off by default on machines <= 8.1 for compatibility reasons.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
[ clg:  - checkpatch fixes
  	- improved warn_report() in vfio_realize() ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Marc-André Lureau 2023-10-09 10:32:47 +04:00 • committed by Cédric Le Goater
parent a1e88d2d2b
commit 8741781157
5 changed files with 74 additions and 0 deletions
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3
hw/vfio/pci.h
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@ -174,6 +174,7 @@ struct VFIOPCIDevice {
bool no_kvm_ioeventfd;
bool no_vfio_ioeventfd;
bool enable_ramfb;
OnOffAuto ramfb_migrate;
bool defer_kvm_irq_routing;
bool clear_parent_atomics_on_exit;
VFIODisplay *dpy;
@ -227,4 +228,6 @@ void vfio_display_reset(VFIOPCIDevice *vdev);
int vfio_display_probe(VFIOPCIDevice *vdev, Error **errp);
void vfio_display_finalize(VFIOPCIDevice *vdev);
extern const VMStateDescription vfio_display_vmstate;
#endif /* HW_VFIO_VFIO_PCI_H */