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| author | royger <royger@FreeBSD.org> | 2015-08-21 15:53:08 +0000 |
|---|---|---|
| committer | royger <royger@FreeBSD.org> | 2015-08-21 15:53:08 +0000 |
| commit | ef7f753c0456a32eb1092ed1a5ee0affd7659c57 (patch) | |
| tree | b9a2f09cf466dd32614dc7bf3758010301028efb /sys/dev/xen | |
| parent | c91bb25afef948b9a83e4e73568fc70a59b4b0c3 (diff) | |
| download | FreeBSD-src-ef7f753c0456a32eb1092ed1a5ee0affd7659c57.zip FreeBSD-src-ef7f753c0456a32eb1092ed1a5ee0affd7659c57.tar.gz | |
xen: allow disabling PV disks and nics
Introduce two new loader tunnables that can be used to disable PV disks and
PV nics at boot time. They default to 0 and should be set to 1 (or any
number different than 0) in order to disable the PV devices:
hw.xen.disable_pv_disks=1
hw.xen.disable_pv_nics=1
In /boot/loader.conf will disable both PV disks and nics.
Sponsored by: Citrix Systems R&D
Tested by: Karl Pielorz <kpielorz_lst@tdx.co.uk>
MFC after: 1 week
Diffstat (limited to 'sys/dev/xen')
| -rw-r--r-- | sys/dev/xen/blkfront/blkfront.c | 3 | ||||
| -rw-r--r-- | sys/dev/xen/netfront/netfront.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/sys/dev/xen/blkfront/blkfront.c b/sys/dev/xen/blkfront/blkfront.c index 5ff9d38..1416c28 100644 --- a/sys/dev/xen/blkfront/blkfront.c +++ b/sys/dev/xen/blkfront/blkfront.c @@ -1366,6 +1366,9 @@ xbd_probe(device_t dev) if (strcmp(xenbus_get_type(dev), "vbd") != 0) return (ENXIO); + if (xen_hvm_domain() && xen_disable_pv_disks != 0) + return (ENXIO); + if (xen_hvm_domain()) { int error; char *type; diff --git a/sys/dev/xen/netfront/netfront.c b/sys/dev/xen/netfront/netfront.c index 302c017..703b44f 100644 --- a/sys/dev/xen/netfront/netfront.c +++ b/sys/dev/xen/netfront/netfront.c @@ -445,6 +445,9 @@ static int netfront_probe(device_t dev) { + if (xen_hvm_domain() && xen_disable_pv_nics != 0) + return (ENXIO); + if (!strcmp(xenbus_get_type(dev), "vif")) { device_set_desc(dev, "Virtual Network Interface"); return (0); |
