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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2010-05-14 15:44:30 +0400 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-07-27 10:13:25 +0400 |
| commit | c1c5413ad58cb73267d328e6020268aa2e50d8ca (patch) | |
| tree | f2c66141ab8d9fdb7b16a13d4d510ad09b2430ed /drivers/xen/xenbus/xenbus_probe.c | |
| parent | 409771d258e9dd71c30f3c9520fd2b796ffc40f0 (diff) | |
| download | linux-c1c5413ad58cb73267d328e6020268aa2e50d8ca.tar.xz | |
x86: Unplug emulated disks and nics.
Add a xen_emul_unplug command line option to the kernel to unplug
xen emulated disks and nics.
Set the default value of xen_emul_unplug depending on whether or
not the Xen PV frontends and the Xen platform PCI driver have
been compiled for this kernel (modules or built-in are both OK).
The user can specify xen_emul_unplug=ignore to enable PV drivers on HVM
even if the host platform doesn't support unplug.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'drivers/xen/xenbus/xenbus_probe.c')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index a9e83c438cbb..37e8894b50d6 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; |