diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/xen-blkfront.c | 17 | ||||
| -rw-r--r-- | drivers/xen/platform-pci.c | 6 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 4 |
3 files changed, 27 insertions, 0 deletions
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 82ed403147c..6eb2989a9d0 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -48,6 +48,7 @@ #include <xen/grant_table.h> #include <xen/events.h> #include <xen/page.h> +#include <xen/platform_pci.h> #include <xen/interface/grant_table.h> #include <xen/interface/io/blkif.h> @@ -737,6 +738,22 @@ static int blkfront_probe(struct xenbus_device *dev, } } + /* no unplug has been done: do not hook devices != xen vbds */ + if (xen_hvm_domain() && (xen_platform_pci_unplug & XEN_UNPLUG_IGNORE)) { + int major; + + if (!VDEV_IS_EXTENDED(vdevice)) + major = BLKIF_MAJOR(vdevice); + else + major = XENVBD_MAJOR; + + if (major != XENVBD_MAJOR) { + printk(KERN_INFO + "%s: HVM does not support vbd %d as xen block device\n", + __FUNCTION__, vdevice); + return -ENODEV; + } + } info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) { xenbus_dev_fatal(dev, -ENOMEM, "allocating info structure"); diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c index bdb44f2473e..c01b5ddce52 100644 --- a/drivers/xen/platform-pci.c +++ b/drivers/xen/platform-pci.c @@ -27,6 +27,7 @@ #include <linux/module.h> #include <linux/pci.h> +#include <xen/platform_pci.h> #include <xen/grant_table.h> #include <xen/xenbus.h> #include <xen/events.h> @@ -195,6 +196,11 @@ static struct pci_driver platform_driver = { static int __init platform_pci_module_init(void) { + /* no unplug has been done, IGNORE hasn't been specified: just + * return now */ + if (!xen_platform_pci_unplug) + return -ENODEV; + return pci_register_driver(&platform_driver); } diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index a9e83c438cb..37e8894b50d 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -56,6 +56,7 @@ #include <xen/events.h> #include <xen/page.h> +#include <xen/platform_pci.h> #include <xen/hvm.h> #include "xenbus_comms.h" @@ -977,6 +978,9 @@ static void wait_for_devices(struct xenbus_driver *xendrv) #ifndef MODULE static int __init boot_wait_for_devices(void) { + if (xen_hvm_domain() && !xen_platform_pci_unplug) + return -ENODEV; + ready_to_wait_for_devices = 1; wait_for_devices(NULL); return 0; |