From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Vrabel Subject: [PATCH 10/11] libxc: add xc_domain_set_max_evtchn() Date: Tue, 8 Oct 2013 13:40:44 +0100 Message-ID: <1381236045-27020-11-git-send-email-david.vrabel@citrix.com> References: <1381236045-27020-1-git-send-email-david.vrabel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1381236045-27020-1-git-send-email-david.vrabel@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org Cc: Ian Jackson , Keir Fraser , David Vrabel , Jan Beulich List-Id: xen-devel@lists.xenproject.org From: David Vrabel Add xc_domain_set_max_evtchn(), a wrapper around the DOMCTL_set_max_evtchn hypercall. Signed-off-by: David Vrabel Acked-by: Ian Campbell Cc: Ian Jackson --- tools/libxc/xc_domain.c | 11 +++++++++++ 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 81316d3..2cea6e3 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 58d51f3..8cf3f3b 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 */ -- 1.7.2.5