[Xen-devel] [PATCH 1/3] credit2: libxc related changes to add support for runqueue per cpupool.

[anshulmakkar <anshulmakkar@xxxxxxxxx>]

libxc receives scheduler specific configuration parametes from 
libxl.

Signed-off-by: Anshul Makkar <anshulmakkar@xxxxxxxxx>
---
 tools/libxc/include/xenctrl.h     | 6 +++++-
 tools/libxc/xc_cpupool.c          | 4 +++-
 tools/python/xen/lowlevel/xc/xc.c | 3 ++-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h
index 43151cb..e2157e9 100644
--- a/tools/libxc/include/xenctrl.h
+++ b/tools/libxc/include/xenctrl.h
@@ -1077,17 +1077,21 @@ typedef struct xc_cpupoolinfo {
 
 #define XC_CPUPOOL_POOLID_ANY 0xFFFFFFFF
 
+typedef xen_sysctl_sched_param_t xc_schedparam_t;
+
 /**
  * Create a new cpupool.
  *
  * @parm xc_handle a handle to an open hypervisor interface
  * @parm ppoolid pointer to the new cpupool id (in/out)
  * @parm sched_id id of scheduler to use for pool
+ * @parm sched_param parameter of the scheduler of the cpupool eg. runq for 
credit2
  * return 0 on success, -1 on failure
  */
 int xc_cpupool_create(xc_interface *xch,
                       uint32_t *ppoolid,
-                      uint32_t sched_id);
+                      uint32_t sched_id,
+                      xc_schedparam_t * sched_param);
 
 /**
  * Destroy a cpupool. Pool must be unused and have no cpu assigned.
diff --git a/tools/libxc/xc_cpupool.c b/tools/libxc/xc_cpupool.c
index fbd8cc9..fb2d183 100644
--- a/tools/libxc/xc_cpupool.c
+++ b/tools/libxc/xc_cpupool.c
@@ -36,7 +36,8 @@ static int do_sysctl_save(xc_interface *xch, struct 
xen_sysctl *sysctl)
 
 int xc_cpupool_create(xc_interface *xch,
                       uint32_t *ppoolid,
-                      uint32_t sched_id)
+                      uint32_t sched_id,
+                      xc_schedparam_t * sched_params)
 {
     int err;
     DECLARE_SYSCTL;
@@ -46,6 +47,7 @@ int xc_cpupool_create(xc_interface *xch,
     sysctl.u.cpupool_op.cpupool_id = (*ppoolid == XC_CPUPOOL_POOLID_ANY) ?
         XEN_SYSCTL_CPUPOOL_PAR_ANY : *ppoolid;
     sysctl.u.cpupool_op.sched_id = sched_id;
+    sysctl.u.cpupool_op.sched_param = *sched_params;
     if ( (err = do_sysctl_save(xch, &sysctl)) != 0 )
         return err;
 
diff --git a/tools/python/xen/lowlevel/xc/xc.c 
b/tools/python/xen/lowlevel/xc/xc.c
index aa9f8e4..a83a23f 100644
--- a/tools/python/xen/lowlevel/xc/xc.c
+++ b/tools/python/xen/lowlevel/xc/xc.c
@@ -1704,6 +1704,7 @@ static PyObject *pyxc_cpupool_create(XcObject *self,
                                      PyObject *kwds)
 {
     uint32_t cpupool = XC_CPUPOOL_POOLID_ANY, sched = XEN_SCHEDULER_CREDIT;
+    xc_schedparam_t param;
 
     static char *kwd_list[] = { "pool", "sched", NULL };
 
@@ -1711,7 +1712,7 @@ static PyObject *pyxc_cpupool_create(XcObject *self,
                                       &sched))
         return NULL;
 
-    if ( xc_cpupool_create(self->xc_handle, &cpupool, sched) < 0 )
+    if ( xc_cpupool_create(self->xc_handle, &cpupool, sched, &param) < 0 )
         return pyxc_error_to_exception(self->xc_handle);
 
     return PyLongOrInt_FromLong(cpupool);
-- 
2.7.4


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