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author | David Vrabel <david.vrabel@citrix.com> | 2013-10-14 10:24:03 +0200 |
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committer | Jan Beulich <jbeulich@suse.com> | 2013-10-14 10:24:03 +0200 |
commit | 783b9e67f963bbb068b68fea4426131858145b0f (patch) | |
tree | 15a6d1b9becb60a50e8f04f52e17fe1faf6c6de8 | |
parent | 8ec7763c807f252e930c9647a0631253db2844a7 (diff) | |
download | xen-783b9e67f963bbb068b68fea4426131858145b0f.tar.gz xen-783b9e67f963bbb068b68fea4426131858145b0f.tar.bz2 xen-783b9e67f963bbb068b68fea4426131858145b0f.zip |
libxc: add xc_domain_set_max_evtchn()
Add xc_domain_set_max_evtchn(), a wrapper around the
DOMCTL_set_max_evtchn hypercall.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
-rw-r--r-- | tools/libxc/xc_domain.c | 11 | ||||
-rw-r--r-- | tools/libxc/xenctrl.h | 12 |
2 files changed, 23 insertions, 0 deletions
diff --git a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c index 81316d3c7f..2cea6e3841 100644 --- a/tools/libxc/xc_domain.c +++ b/tools/libxc/xc_domain.c @@ -1766,6 +1766,17 @@ int xc_domain_set_virq_handler(xc_interface *xch, uint32_t domid, int virq) return do_domctl(xch, &domctl); } +int xc_domain_set_max_evtchn(xc_interface *xch, uint32_t domid, + uint32_t max_port) +{ + DECLARE_DOMCTL; + + domctl.cmd = XEN_DOMCTL_set_max_evtchn; + domctl.domain = domid; + domctl.u.set_max_evtchn.max_port = max_port; + return do_domctl(xch, &domctl); +} + /* * Local variables: * mode: C diff --git a/tools/libxc/xenctrl.h b/tools/libxc/xenctrl.h index 58d51f353a..8cf3f3bd15 100644 --- a/tools/libxc/xenctrl.h +++ b/tools/libxc/xenctrl.h @@ -847,6 +847,18 @@ int xc_domain_set_access_required(xc_interface *xch, */ int xc_domain_set_virq_handler(xc_interface *xch, uint32_t domid, int virq); +/** + * Set the maximum event channel port a domain may bind. + * + * This does not affect ports that are already bound. + * + * @param xch a handle to an open hypervisor interface + * @param domid the domain id + * @param max_port maximum port number + */ +int xc_domain_set_max_evtchn(xc_interface *xch, uint32_t domid, + uint32_t max_port); + /* * CPUPOOL MANAGEMENT FUNCTIONS */ |