Add xc_sched_rtds_vcpu_get/set functions to interact with
Xen to get/set a domain's per-VCPU parameters.
Signed-off-by: Chong Li <chong...@wustl.edu>
Signed-off-by: Meng Xu <men...@cis.upenn.edu>
Signed-off-by: Sisu Xi <xis...@gmail.com>
---
Changes on PATCH v4:
1) Minor modifications on the function parameters.
Changes on PATCH v2:
1) Minor modifications due to the change of struct xen_domctl_scheduler_op.
CC: <dario.faggi...@citrix.com>
CC: <george.dun...@eu.citrix.com>
CC: <dgol...@seas.upenn.edu>
CC: <men...@cis.upenn.edu>
CC: <wei.l...@citrix.com>
CC: <lichong...@gmail.com>
---
tools/libxc/include/xenctrl.h | 8 +++++++
tools/libxc/xc_rt.c | 56 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 64 insertions(+)
diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h
index 01a6dda..db13434 100644
--- a/tools/libxc/include/xenctrl.h
+++ b/tools/libxc/include/xenctrl.h
@@ -893,6 +893,14 @@ int xc_sched_rtds_domain_set(xc_interface *xch,
int xc_sched_rtds_domain_get(xc_interface *xch,
uint32_t domid,
struct xen_domctl_sched_rtds *sdom);
+int xc_sched_rtds_vcpu_set(xc_interface *xch,
+ uint32_t domid,
+ struct xen_domctl_schedparam_vcpu *vcpus,
+ uint32_t num_vcpus);
+int xc_sched_rtds_vcpu_get(xc_interface *xch,
+ uint32_t domid,
+ struct xen_domctl_schedparam_vcpu *vcpus,
+ uint32_t num_vcpus);
int
xc_sched_arinc653_schedule_set(
diff --git a/tools/libxc/xc_rt.c b/tools/libxc/xc_rt.c
index d59e5ce..cb7bc1a 100644
--- a/tools/libxc/xc_rt.c
+++ b/tools/libxc/xc_rt.c
@@ -62,3 +62,59 @@ int xc_sched_rtds_domain_get(xc_interface *xch,
return rc;
}
+
+int xc_sched_rtds_vcpu_set(xc_interface *xch,
+ uint32_t domid,
+ struct xen_domctl_schedparam_vcpu *vcpus,
+ uint32_t num_vcpus)
+{
+ int rc;
+ DECLARE_DOMCTL;
+ DECLARE_HYPERCALL_BOUNCE(vcpus, sizeof(*vcpus) * num_vcpus,
+ XC_HYPERCALL_BUFFER_BOUNCE_IN);
+
+ if ( xc_hypercall_bounce_pre(xch, vcpus) )
+ return -1;
+
+ domctl.cmd = XEN_DOMCTL_scheduler_op;
+ domctl.domain = (domid_t) domid;
+ domctl.u.scheduler_op.sched_id = XEN_SCHEDULER_RTDS;
+ domctl.u.scheduler_op.cmd = XEN_DOMCTL_SCHEDOP_putvcpuinfo;
+ domctl.u.scheduler_op.u.v.nr_vcpus = num_vcpus;
+ set_xen_guest_handle(domctl.u.scheduler_op.u.v.vcpus, vcpus);
+ domctl.u.scheduler_op.u.v.vcpu_index = 0;
+
+ rc = do_domctl(xch, &domctl);
+
+ xc_hypercall_bounce_post(xch, vcpus);
+
+ return rc;
+}
+
+int xc_sched_rtds_vcpu_get(xc_interface *xch,
+ uint32_t domid,
+ struct xen_domctl_schedparam_vcpu *vcpus,
+ uint32_t num_vcpus)
+{
+ int rc;
+ DECLARE_DOMCTL;
+ DECLARE_HYPERCALL_BOUNCE(vcpus, sizeof(*vcpus) * num_vcpus,
+ XC_HYPERCALL_BUFFER_BOUNCE_BOTH);
+
+ if ( xc_hypercall_bounce_pre(xch, vcpus) )
+ return -1;
+
+ domctl.cmd = XEN_DOMCTL_scheduler_op;
+ domctl.domain = (domid_t) domid;
+ domctl.u.scheduler_op.sched_id = XEN_SCHEDULER_RTDS;
+ domctl.u.scheduler_op.cmd = XEN_DOMCTL_SCHEDOP_getvcpuinfo;
+ domctl.u.scheduler_op.u.v.nr_vcpus = num_vcpus;
+ set_xen_guest_handle(domctl.u.scheduler_op.u.v.vcpus, vcpus);
+ domctl.u.scheduler_op.u.v.vcpu_index = 0;
+
+ rc = do_domctl(xch, &domctl);
+
+ xc_hypercall_bounce_post(xch, vcpus);
+
+ return rc;
+}
--
1.9.1
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
