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| author | Daniel De Graaf <dgdegra@tycho.nsa.gov> | 2011-12-19 23:55:14 +0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-12-21 02:02:35 +0400 |
| commit | 2c5d37d30fbd27d424a18abc16786cb152a37017 (patch) | |
| tree | a721776de9157570120057a31de7e271cbe56b28 /drivers/xen/xenbus/xenbus_probe.c | |
| parent | cb85f123cd2393581bcffad335bfc6bcdd58569c (diff) | |
| download | linux-2c5d37d30fbd27d424a18abc16786cb152a37017.tar.xz | |
xenbus: Support HVM backends
Add HVM implementations of xenbus_(map,unmap)_ring_v(alloc,free) so
that ring mappings can be done without using GNTMAP_contains_pte which
is not supported on HVM. This also removes the need to use vmlist_lock
on PV by tracking the allocated xenbus rings.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
[v1: Fix compile error when XENBUS_FRONTEND is defined as module]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen/xenbus/xenbus_probe.c')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 1b178c6e8937..1c05b2508ae8 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -730,6 +730,8 @@ static int __init xenbus_init(void) if (!xen_domain()) return -ENODEV; + xenbus_ring_ops_init(); + if (xen_hvm_domain()) { uint64_t v = 0; err = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN, &v); |