From: Olaf Hering Subject: [PATCH v2] unmodified_drivers: enable unplug per default Since xen-3.3 an official unplug protocol for emulated hardware is available in the toolstack. The pvops kernel does the unplug per default, so it is safe to do it also in the drivers for forward ported xenlinux. Currently its required to load xen-platform-pci with the module parameter dev_unplug=all, which is cumbersome. Signed-off-by: Olaf Hering --- unmodified_drivers/linux-2.6/platform-pci/platform-pci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) Index: xen-4.3.0-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c =================================================================== --- xen-4.3.0-testing.orig/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c +++ xen-4.3.0-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c @@ -67,7 +67,7 @@ MODULE_LICENSE("GPL"); static char *dev_unplug; module_param(dev_unplug, charp, 0644); MODULE_PARM_DESC(dev_unplug, "Emulated devices to unplug: " - "[all,][ide-disks,][aux-ide-disks,][nics]\n"); + "[all,][ide-disks,][aux-ide-disks,][nics] (default is 'all')\n"); struct pci_dev *xen_platform_pdev; @@ -291,6 +291,10 @@ static int check_platform_magic(struct d short magic, unplug = 0; char protocol, *p, *q, *err; + /* Unconditionally unplug everything */ + if (!dev_unplug) + unplug = UNPLUG_ALL; + for (p = dev_unplug; p; p = q) { q = strchr(dev_unplug, ','); if (q)