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author | Tim Deegan <tim@xen.org> | 2012-03-08 16:40:05 +0000 |
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committer | Tim Deegan <tim@xen.org> | 2012-03-08 16:40:05 +0000 |
commit | f9f9daee79a5711c7cd880a10dbff02ed5cd749b (patch) | |
tree | 685171ba0771f4a6bc92809669a41db0f2a37162 /tools/libxc/xc_memshr.c | |
parent | cc0b0b4487dd1df3fd5e15050a2fb05bb88b3539 (diff) | |
download | xen-f9f9daee79a5711c7cd880a10dbff02ed5cd749b.tar.gz xen-f9f9daee79a5711c7cd880a10dbff02ed5cd749b.tar.bz2 xen-f9f9daee79a5711c7cd880a10dbff02ed5cd749b.zip |
Tools: libxc side for setting up the mem sharing ring
This ring is used to report failed allocations in the unshare path.
Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Tim Deegan <tim@xen.org>
Diffstat (limited to 'tools/libxc/xc_memshr.c')
-rw-r--r-- | tools/libxc/xc_memshr.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/libxc/xc_memshr.c b/tools/libxc/xc_memshr.c index 992b9144e5..ae60571dee 100644 --- a/tools/libxc/xc_memshr.c +++ b/tools/libxc/xc_memshr.c @@ -42,6 +42,31 @@ int xc_memshr_control(xc_interface *xch, return do_domctl(xch, &domctl); } +int xc_memshr_ring_enable(xc_interface *xch, + domid_t domid, + uint32_t *port) +{ + if ( !port ) + { + errno = EINVAL; + return -1; + } + + return xc_mem_event_control(xch, domid, + XEN_DOMCTL_MEM_EVENT_OP_SHARING_ENABLE, + XEN_DOMCTL_MEM_EVENT_OP_SHARING, + port); +} + +int xc_memshr_ring_disable(xc_interface *xch, + domid_t domid) +{ + return xc_mem_event_control(xch, domid, + XEN_DOMCTL_MEM_EVENT_OP_SHARING_DISABLE, + XEN_DOMCTL_MEM_EVENT_OP_SHARING, + NULL); +} + static int xc_memshr_memop(xc_interface *xch, domid_t domid, xen_mem_sharing_op_t *mso) { |