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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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hw/core/machine.c
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@ -35,6 +35,7 @@
GlobalProperty hw_compat_8_1[] = {
{ TYPE_PCI_BRIDGE, "x-pci-express-writeable-slt-bug", "true" },
{ "ramfb", "x-migrate", "off" },
{ "vfio-pci-nohotplug", "x-ramfb-migrate", "off" }
};
const size_t hw_compat_8_1_len = G_N_ELEMENTS(hw_compat_8_1);