From: Eric Auger eric.auger@redhat.com
[ Upstream commit 28b6a003bcdfa1fc4603b9185b247ecca7af9bef ]
The virtual machine monitor (QEMU) exposes the pvpanic-pci device to the guest. On guest side the module exists but currently isn't loaded automatically. So the driver fails to be probed and does not its job of handling guest panic events.
Instead of requiring manual modprobe, let's include a device database using the MODULE_DEVICE_TABLE macro and let the module auto-load when the guest gets exposed with such a pvpanic-pci device.
Signed-off-by: Eric Auger eric.auger@redhat.com Link: https://lore.kernel.org/r/20210629072214.901004-1-eric.auger@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/pvpanic/pvpanic-pci.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/misc/pvpanic/pvpanic-pci.c b/drivers/misc/pvpanic/pvpanic-pci.c index 046ce4ecc195..4a3250564442 100644 --- a/drivers/misc/pvpanic/pvpanic-pci.c +++ b/drivers/misc/pvpanic/pvpanic-pci.c @@ -119,4 +119,6 @@ static struct pci_driver pvpanic_pci_driver = { }, };
+MODULE_DEVICE_TABLE(pci, pvpanic_pci_id_tbl); + module_pci_driver(pvpanic_pci_driver);