[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] [PATCH 2/9] xen/sched: make sched-if.h really scheduler private



include/xen/sched-if.h should be private to scheduler code, so move it
to common/sched/sched-if.h and move the remaining use cases to
cpupool.c and schedule.c.

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
 xen/arch/x86/dom0_build.c                    |   5 +-
 xen/common/domain.c                          |  70 ----------
 xen/common/domctl.c                          | 135 +------------------
 xen/common/sched/cpupool.c                   |  13 +-
 xen/{include/xen => common/sched}/sched-if.h |   3 -
 xen/common/sched/sched_arinc653.c            |   3 +-
 xen/common/sched/sched_credit.c              |   2 +-
 xen/common/sched/sched_credit2.c             |   3 +-
 xen/common/sched/sched_null.c                |   3 +-
 xen/common/sched/sched_rt.c                  |   3 +-
 xen/common/sched/schedule.c                  | 191 ++++++++++++++++++++++++++-
 xen/include/xen/domain.h                     |   3 +
 xen/include/xen/sched.h                      |   7 +
 13 files changed, 228 insertions(+), 213 deletions(-)
 rename xen/{include/xen => common/sched}/sched-if.h (99%)

diff --git a/xen/arch/x86/dom0_build.c b/xen/arch/x86/dom0_build.c
index 28b964e018..56c2dee0fc 100644
--- a/xen/arch/x86/dom0_build.c
+++ b/xen/arch/x86/dom0_build.c
@@ -9,7 +9,6 @@
 #include <xen/libelf.h>
 #include <xen/pfn.h>
 #include <xen/sched.h>
-#include <xen/sched-if.h>
 #include <xen/softirq.h>
 
 #include <asm/amd.h>
@@ -227,9 +226,9 @@ unsigned int __init dom0_max_vcpus(void)
         dom0_nodes = node_online_map;
     for_each_node_mask ( node, dom0_nodes )
         cpumask_or(&dom0_cpus, &dom0_cpus, &node_to_cpumask(node));
-    cpumask_and(&dom0_cpus, &dom0_cpus, cpupool0->cpu_valid);
+    cpumask_and(&dom0_cpus, &dom0_cpus, cpupool_valid_cpus(cpupool0));
     if ( cpumask_empty(&dom0_cpus) )
-        cpumask_copy(&dom0_cpus, cpupool0->cpu_valid);
+        cpumask_copy(&dom0_cpus, cpupool_valid_cpus(cpupool0));
 
     max_vcpus = cpumask_weight(&dom0_cpus);
     if ( opt_dom0_max_vcpus_min > max_vcpus )
diff --git a/xen/common/domain.c b/xen/common/domain.c
index 611116c7fc..f4f0a66262 100644
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -10,7 +10,6 @@
 #include <xen/ctype.h>
 #include <xen/err.h>
 #include <xen/sched.h>
-#include <xen/sched-if.h>
 #include <xen/domain.h>
 #include <xen/mm.h>
 #include <xen/event.h>
@@ -565,75 +564,6 @@ void __init setup_system_domains(void)
 #endif
 }
 
-void domain_update_node_affinity(struct domain *d)
-{
-    cpumask_var_t dom_cpumask, dom_cpumask_soft;
-    cpumask_t *dom_affinity;
-    const cpumask_t *online;
-    struct sched_unit *unit;
-    unsigned int cpu;
-
-    /* Do we have vcpus already? If not, no need to update node-affinity. */
-    if ( !d->vcpu || !d->vcpu[0] )
-        return;
-
-    if ( !zalloc_cpumask_var(&dom_cpumask) )
-        return;
-    if ( !zalloc_cpumask_var(&dom_cpumask_soft) )
-    {
-        free_cpumask_var(dom_cpumask);
-        return;
-    }
-
-    online = cpupool_domain_master_cpumask(d);
-
-    spin_lock(&d->node_affinity_lock);
-
-    /*
-     * If d->auto_node_affinity is true, let's compute the domain's
-     * node-affinity and update d->node_affinity accordingly. if false,
-     * just leave d->auto_node_affinity alone.
-     */
-    if ( d->auto_node_affinity )
-    {
-        /*
-         * We want the narrowest possible set of pcpus (to get the narowest
-         * possible set of nodes). What we need is the cpumask of where the
-         * domain can run (the union of the hard affinity of all its vcpus),
-         * and the full mask of where it would prefer to run (the union of
-         * the soft affinity of all its various vcpus). Let's build them.
-         */
-        for_each_sched_unit ( d, unit )
-        {
-            cpumask_or(dom_cpumask, dom_cpumask, unit->cpu_hard_affinity);
-            cpumask_or(dom_cpumask_soft, dom_cpumask_soft,
-                       unit->cpu_soft_affinity);
-        }
-        /* Filter out non-online cpus */
-        cpumask_and(dom_cpumask, dom_cpumask, online);
-        ASSERT(!cpumask_empty(dom_cpumask));
-        /* And compute the intersection between hard, online and soft */
-        cpumask_and(dom_cpumask_soft, dom_cpumask_soft, dom_cpumask);
-
-        /*
-         * If not empty, the intersection of hard, soft and online is the
-         * narrowest set we want. If empty, we fall back to hard&online.
-         */
-        dom_affinity = cpumask_empty(dom_cpumask_soft) ?
-                           dom_cpumask : dom_cpumask_soft;
-
-        nodes_clear(d->node_affinity);
-        for_each_cpu ( cpu, dom_affinity )
-            node_set(cpu_to_node(cpu), d->node_affinity);
-    }
-
-    spin_unlock(&d->node_affinity_lock);
-
-    free_cpumask_var(dom_cpumask_soft);
-    free_cpumask_var(dom_cpumask);
-}
-
-
 int domain_set_node_affinity(struct domain *d, const nodemask_t *affinity)
 {
     /* Being disjoint with the system is just wrong. */
diff --git a/xen/common/domctl.c b/xen/common/domctl.c
index 03d0226039..3407db44fd 100644
--- a/xen/common/domctl.c
+++ b/xen/common/domctl.c
@@ -11,7 +11,6 @@
 #include <xen/err.h>
 #include <xen/mm.h>
 #include <xen/sched.h>
-#include <xen/sched-if.h>
 #include <xen/domain.h>
 #include <xen/event.h>
 #include <xen/grant_table.h>
@@ -65,9 +64,9 @@ static int bitmap_to_xenctl_bitmap(struct xenctl_bitmap 
*xenctl_bitmap,
     return err;
 }
 
-static int xenctl_bitmap_to_bitmap(unsigned long *bitmap,
-                                   const struct xenctl_bitmap *xenctl_bitmap,
-                                   unsigned int nbits)
+int xenctl_bitmap_to_bitmap(unsigned long *bitmap,
+                            const struct xenctl_bitmap *xenctl_bitmap,
+                            unsigned int nbits)
 {
     unsigned int guest_bytes, copy_bytes;
     int err = 0;
@@ -200,7 +199,7 @@ void getdomaininfo(struct domain *d, struct 
xen_domctl_getdomaininfo *info)
     info->shared_info_frame = mfn_to_gmfn(d, virt_to_mfn(d->shared_info));
     BUG_ON(SHARED_M2P(info->shared_info_frame));
 
-    info->cpupool = d->cpupool ? d->cpupool->cpupool_id : CPUPOOLID_NONE;
+    info->cpupool = cpupool_get_id(d);
 
     memcpy(info->handle, d->handle, sizeof(xen_domain_handle_t));
 
@@ -234,16 +233,6 @@ void domctl_lock_release(void)
     spin_unlock(&current->domain->hypercall_deadlock_mutex);
 }
 
-static inline
-int vcpuaffinity_params_invalid(const struct xen_domctl_vcpuaffinity *vcpuaff)
-{
-    return vcpuaff->flags == 0 ||
-           ((vcpuaff->flags & XEN_VCPUAFFINITY_HARD) &&
-            guest_handle_is_null(vcpuaff->cpumap_hard.bitmap)) ||
-           ((vcpuaff->flags & XEN_VCPUAFFINITY_SOFT) &&
-            guest_handle_is_null(vcpuaff->cpumap_soft.bitmap));
-}
-
 void vnuma_destroy(struct vnuma_info *vnuma)
 {
     if ( vnuma )
@@ -608,122 +597,8 @@ long do_domctl(XEN_GUEST_HANDLE_PARAM(xen_domctl_t) 
u_domctl)
 
     case XEN_DOMCTL_setvcpuaffinity:
     case XEN_DOMCTL_getvcpuaffinity:
-    {
-        struct vcpu *v;
-        const struct sched_unit *unit;
-        struct xen_domctl_vcpuaffinity *vcpuaff = &op->u.vcpuaffinity;
-
-        ret = -EINVAL;
-        if ( vcpuaff->vcpu >= d->max_vcpus )
-            break;
-
-        ret = -ESRCH;
-        if ( (v = d->vcpu[vcpuaff->vcpu]) == NULL )
-            break;
-
-        unit = v->sched_unit;
-        ret = -EINVAL;
-        if ( vcpuaffinity_params_invalid(vcpuaff) )
-            break;
-
-        if ( op->cmd == XEN_DOMCTL_setvcpuaffinity )
-        {
-            cpumask_var_t new_affinity, old_affinity;
-            cpumask_t *online = cpupool_domain_master_cpumask(v->domain);
-
-            /*
-             * We want to be able to restore hard affinity if we are trying
-             * setting both and changing soft affinity (which happens later,
-             * when hard affinity has been succesfully chaged already) fails.
-             */
-            if ( !alloc_cpumask_var(&old_affinity) )
-            {
-                ret = -ENOMEM;
-                break;
-            }
-            cpumask_copy(old_affinity, unit->cpu_hard_affinity);
-
-            if ( !alloc_cpumask_var(&new_affinity) )
-            {
-                free_cpumask_var(old_affinity);
-                ret = -ENOMEM;
-                break;
-            }
-
-            /* Undo a stuck SCHED_pin_override? */
-            if ( vcpuaff->flags & XEN_VCPUAFFINITY_FORCE )
-                vcpu_temporary_affinity(v, NR_CPUS, VCPU_AFFINITY_OVERRIDE);
-
-            ret = 0;
-
-            /*
-             * We both set a new affinity and report back to the caller what
-             * the scheduler will be effectively using.
-             */
-            if ( vcpuaff->flags & XEN_VCPUAFFINITY_HARD )
-            {
-                ret = xenctl_bitmap_to_bitmap(cpumask_bits(new_affinity),
-                                              &vcpuaff->cpumap_hard,
-                                              nr_cpu_ids);
-                if ( !ret )
-                    ret = vcpu_set_hard_affinity(v, new_affinity);
-                if ( ret )
-                    goto setvcpuaffinity_out;
-
-                /*
-                 * For hard affinity, what we return is the intersection of
-                 * cpupool's online mask and the new hard affinity.
-                 */
-                cpumask_and(new_affinity, online, unit->cpu_hard_affinity);
-                ret = cpumask_to_xenctl_bitmap(&vcpuaff->cpumap_hard,
-                                               new_affinity);
-            }
-            if ( vcpuaff->flags & XEN_VCPUAFFINITY_SOFT )
-            {
-                ret = xenctl_bitmap_to_bitmap(cpumask_bits(new_affinity),
-                                              &vcpuaff->cpumap_soft,
-                                              nr_cpu_ids);
-                if ( !ret)
-                    ret = vcpu_set_soft_affinity(v, new_affinity);
-                if ( ret )
-                {
-                    /*
-                     * Since we're returning error, the caller expects nothing
-                     * happened, so we rollback the changes to hard affinity
-                     * (if any).
-                     */
-                    if ( vcpuaff->flags & XEN_VCPUAFFINITY_HARD )
-                        vcpu_set_hard_affinity(v, old_affinity);
-                    goto setvcpuaffinity_out;
-                }
-
-                /*
-                 * For soft affinity, we return the intersection between the
-                 * new soft affinity, the cpupool's online map and the (new)
-                 * hard affinity.
-                 */
-                cpumask_and(new_affinity, new_affinity, online);
-                cpumask_and(new_affinity, new_affinity,
-                            unit->cpu_hard_affinity);
-                ret = cpumask_to_xenctl_bitmap(&vcpuaff->cpumap_soft,
-                                               new_affinity);
-            }
-
- setvcpuaffinity_out:
-            free_cpumask_var(new_affinity);
-            free_cpumask_var(old_affinity);
-        }
-        else
-        {
-            if ( vcpuaff->flags & XEN_VCPUAFFINITY_HARD )
-                ret = cpumask_to_xenctl_bitmap(&vcpuaff->cpumap_hard,
-                                               unit->cpu_hard_affinity);
-            if ( vcpuaff->flags & XEN_VCPUAFFINITY_SOFT )
-                ret = cpumask_to_xenctl_bitmap(&vcpuaff->cpumap_soft,
-                                               unit->cpu_soft_affinity);
-        }
+        ret = vcpu_affinity_domctl(d, op->cmd, &op->u.vcpuaffinity);
         break;
-    }
 
     case XEN_DOMCTL_scheduler_op:
         ret = sched_adjust(d, &op->u.scheduler_op);
diff --git a/xen/common/sched/cpupool.c b/xen/common/sched/cpupool.c
index 4d3adbdd8d..d5b64d0a6a 100644
--- a/xen/common/sched/cpupool.c
+++ b/xen/common/sched/cpupool.c
@@ -16,11 +16,12 @@
 #include <xen/cpumask.h>
 #include <xen/percpu.h>
 #include <xen/sched.h>
-#include <xen/sched-if.h>
 #include <xen/warning.h>
 #include <xen/keyhandler.h>
 #include <xen/cpu.h>
 
+#include "sched-if.h"
+
 #define for_each_cpupool(ptr)    \
     for ((ptr) = &cpupool_list; *(ptr) != NULL; (ptr) = &((*(ptr))->next))
 
@@ -876,6 +877,16 @@ int cpupool_do_sysctl(struct xen_sysctl_cpupool_op *op)
     return ret;
 }
 
+int cpupool_get_id(const struct domain *d)
+{
+    return d->cpupool ? d->cpupool->cpupool_id : CPUPOOLID_NONE;
+}
+
+cpumask_t *cpupool_valid_cpus(struct cpupool *pool)
+{
+    return pool->cpu_valid;
+}
+
 void dump_runq(unsigned char key)
 {
     unsigned long    flags;
diff --git a/xen/include/xen/sched-if.h b/xen/common/sched/sched-if.h
similarity index 99%
rename from xen/include/xen/sched-if.h
rename to xen/common/sched/sched-if.h
index b0ac54e63d..a702fd23b1 100644
--- a/xen/include/xen/sched-if.h
+++ b/xen/common/sched/sched-if.h
@@ -12,9 +12,6 @@
 #include <xen/err.h>
 #include <xen/rcupdate.h>
 
-/* A global pointer to the initial cpupool (POOL0). */
-extern struct cpupool *cpupool0;
-
 /* cpus currently in no cpupool */
 extern cpumask_t cpupool_free_cpus;
 
diff --git a/xen/common/sched/sched_arinc653.c 
b/xen/common/sched/sched_arinc653.c
index 565575c326..fe15754900 100644
--- a/xen/common/sched/sched_arinc653.c
+++ b/xen/common/sched/sched_arinc653.c
@@ -26,7 +26,6 @@
 
 #include <xen/lib.h>
 #include <xen/sched.h>
-#include <xen/sched-if.h>
 #include <xen/timer.h>
 #include <xen/softirq.h>
 #include <xen/time.h>
@@ -35,6 +34,8 @@
 #include <xen/guest_access.h>
 #include <public/sysctl.h>
 
+#include "sched-if.h"
+
 /**************************************************************************
  * Private Macros                                                         *
  **************************************************************************/
diff --git a/xen/common/sched/sched_credit.c b/xen/common/sched/sched_credit.c
index aa41a3301b..a098ca0f3a 100644
--- a/xen/common/sched/sched_credit.c
+++ b/xen/common/sched/sched_credit.c
@@ -15,7 +15,6 @@
 #include <xen/delay.h>
 #include <xen/event.h>
 #include <xen/time.h>
-#include <xen/sched-if.h>
 #include <xen/softirq.h>
 #include <asm/atomic.h>
 #include <asm/div64.h>
@@ -24,6 +23,7 @@
 #include <xen/trace.h>
 #include <xen/err.h>
 
+#include "sched-if.h"
 
 /*
  * Locking:
diff --git a/xen/common/sched/sched_credit2.c b/xen/common/sched/sched_credit2.c
index f7c477053c..5bfe1441a2 100644
--- a/xen/common/sched/sched_credit2.c
+++ b/xen/common/sched/sched_credit2.c
@@ -18,7 +18,6 @@
 #include <xen/event.h>
 #include <xen/time.h>
 #include <xen/perfc.h>
-#include <xen/sched-if.h>
 #include <xen/softirq.h>
 #include <asm/div64.h>
 #include <xen/errno.h>
@@ -26,6 +25,8 @@
 #include <xen/cpu.h>
 #include <xen/keyhandler.h>
 
+#include "sched-if.h"
+
 /* Meant only for helping developers during debugging. */
 /* #define d2printk printk */
 #define d2printk(x...)
diff --git a/xen/common/sched/sched_null.c b/xen/common/sched/sched_null.c
index 3f3418c9b1..5a23a7e7dc 100644
--- a/xen/common/sched/sched_null.c
+++ b/xen/common/sched/sched_null.c
@@ -29,10 +29,11 @@
  */
 
 #include <xen/sched.h>
-#include <xen/sched-if.h>
 #include <xen/softirq.h>
 #include <xen/trace.h>
 
+#include "sched-if.h"
+
 /*
  * null tracing events. Check include/public/trace.h for more details.
  */
diff --git a/xen/common/sched/sched_rt.c b/xen/common/sched/sched_rt.c
index b2b29481f3..379b56bc2a 100644
--- a/xen/common/sched/sched_rt.c
+++ b/xen/common/sched/sched_rt.c
@@ -20,7 +20,6 @@
 #include <xen/time.h>
 #include <xen/timer.h>
 #include <xen/perfc.h>
-#include <xen/sched-if.h>
 #include <xen/softirq.h>
 #include <asm/atomic.h>
 #include <xen/errno.h>
@@ -31,6 +30,8 @@
 #include <xen/err.h>
 #include <xen/guest_access.h>
 
+#include "sched-if.h"
+
 /*
  * TODO:
  *
diff --git a/xen/common/sched/schedule.c b/xen/common/sched/schedule.c
index a550dd8f93..c751faa741 100644
--- a/xen/common/sched/schedule.c
+++ b/xen/common/sched/schedule.c
@@ -23,7 +23,6 @@
 #include <xen/time.h>
 #include <xen/timer.h>
 #include <xen/perfc.h>
-#include <xen/sched-if.h>
 #include <xen/softirq.h>
 #include <xen/trace.h>
 #include <xen/mm.h>
@@ -38,6 +37,8 @@
 #include <xsm/xsm.h>
 #include <xen/err.h>
 
+#include "sched-if.h"
+
 #ifdef CONFIG_XEN_GUEST
 #include <asm/guest.h>
 #else
@@ -1607,6 +1608,194 @@ int vcpu_temporary_affinity(struct vcpu *v, unsigned 
int cpu, uint8_t reason)
     return ret;
 }
 
+static inline
+int vcpuaffinity_params_invalid(const struct xen_domctl_vcpuaffinity *vcpuaff)
+{
+    return vcpuaff->flags == 0 ||
+           ((vcpuaff->flags & XEN_VCPUAFFINITY_HARD) &&
+            guest_handle_is_null(vcpuaff->cpumap_hard.bitmap)) ||
+           ((vcpuaff->flags & XEN_VCPUAFFINITY_SOFT) &&
+            guest_handle_is_null(vcpuaff->cpumap_soft.bitmap));
+}
+
+int vcpu_affinity_domctl(struct domain *d, uint32_t cmd,
+                         struct xen_domctl_vcpuaffinity *vcpuaff)
+{
+    struct vcpu *v;
+    const struct sched_unit *unit;
+    int ret = 0;
+
+    if ( vcpuaff->vcpu >= d->max_vcpus )
+        return -EINVAL;
+
+    if ( (v = d->vcpu[vcpuaff->vcpu]) == NULL )
+        return -ESRCH;
+
+    if ( vcpuaffinity_params_invalid(vcpuaff) )
+        return -EINVAL;
+
+    unit = v->sched_unit;
+
+    if ( cmd == XEN_DOMCTL_setvcpuaffinity )
+    {
+        cpumask_var_t new_affinity, old_affinity;
+        cpumask_t *online = cpupool_domain_master_cpumask(v->domain);
+
+        /*
+         * We want to be able to restore hard affinity if we are trying
+         * setting both and changing soft affinity (which happens later,
+         * when hard affinity has been succesfully chaged already) fails.
+         */
+        if ( !alloc_cpumask_var(&old_affinity) )
+            return -ENOMEM;
+
+        cpumask_copy(old_affinity, unit->cpu_hard_affinity);
+
+        if ( !alloc_cpumask_var(&new_affinity) )
+        {
+            free_cpumask_var(old_affinity);
+            return -ENOMEM;
+        }
+
+        /* Undo a stuck SCHED_pin_override? */
+        if ( vcpuaff->flags & XEN_VCPUAFFINITY_FORCE )
+            vcpu_temporary_affinity(v, NR_CPUS, VCPU_AFFINITY_OVERRIDE);
+
+        ret = 0;
+
+        /*
+         * We both set a new affinity and report back to the caller what
+         * the scheduler will be effectively using.
+         */
+        if ( vcpuaff->flags & XEN_VCPUAFFINITY_HARD )
+        {
+            ret = xenctl_bitmap_to_bitmap(cpumask_bits(new_affinity),
+                                          &vcpuaff->cpumap_hard, nr_cpu_ids);
+            if ( !ret )
+                ret = vcpu_set_hard_affinity(v, new_affinity);
+            if ( ret )
+                goto setvcpuaffinity_out;
+
+            /*
+             * For hard affinity, what we return is the intersection of
+             * cpupool's online mask and the new hard affinity.
+             */
+            cpumask_and(new_affinity, online, unit->cpu_hard_affinity);
+            ret = cpumask_to_xenctl_bitmap(&vcpuaff->cpumap_hard, 
new_affinity);
+        }
+        if ( vcpuaff->flags & XEN_VCPUAFFINITY_SOFT )
+        {
+            ret = xenctl_bitmap_to_bitmap(cpumask_bits(new_affinity),
+                                          &vcpuaff->cpumap_soft, nr_cpu_ids);
+            if ( !ret)
+                ret = vcpu_set_soft_affinity(v, new_affinity);
+            if ( ret )
+            {
+                /*
+                 * Since we're returning error, the caller expects nothing
+                 * happened, so we rollback the changes to hard affinity
+                 * (if any).
+                 */
+                if ( vcpuaff->flags & XEN_VCPUAFFINITY_HARD )
+                    vcpu_set_hard_affinity(v, old_affinity);
+                goto setvcpuaffinity_out;
+            }
+
+            /*
+             * For soft affinity, we return the intersection between the
+             * new soft affinity, the cpupool's online map and the (new)
+             * hard affinity.
+             */
+            cpumask_and(new_affinity, new_affinity, online);
+            cpumask_and(new_affinity, new_affinity, unit->cpu_hard_affinity);
+            ret = cpumask_to_xenctl_bitmap(&vcpuaff->cpumap_soft, 
new_affinity);
+        }
+
+ setvcpuaffinity_out:
+        free_cpumask_var(new_affinity);
+        free_cpumask_var(old_affinity);
+    }
+    else
+    {
+        if ( vcpuaff->flags & XEN_VCPUAFFINITY_HARD )
+            ret = cpumask_to_xenctl_bitmap(&vcpuaff->cpumap_hard,
+                                           unit->cpu_hard_affinity);
+        if ( vcpuaff->flags & XEN_VCPUAFFINITY_SOFT )
+            ret = cpumask_to_xenctl_bitmap(&vcpuaff->cpumap_soft,
+                                           unit->cpu_soft_affinity);
+    }
+
+    return ret;
+}
+
+void domain_update_node_affinity(struct domain *d)
+{
+    cpumask_var_t dom_cpumask, dom_cpumask_soft;
+    cpumask_t *dom_affinity;
+    const cpumask_t *online;
+    struct sched_unit *unit;
+    unsigned int cpu;
+
+    /* Do we have vcpus already? If not, no need to update node-affinity. */
+    if ( !d->vcpu || !d->vcpu[0] )
+        return;
+
+    if ( !zalloc_cpumask_var(&dom_cpumask) )
+        return;
+    if ( !zalloc_cpumask_var(&dom_cpumask_soft) )
+    {
+        free_cpumask_var(dom_cpumask);
+        return;
+    }
+
+    online = cpupool_domain_master_cpumask(d);
+
+    spin_lock(&d->node_affinity_lock);
+
+    /*
+     * If d->auto_node_affinity is true, let's compute the domain's
+     * node-affinity and update d->node_affinity accordingly. if false,
+     * just leave d->auto_node_affinity alone.
+     */
+    if ( d->auto_node_affinity )
+    {
+        /*
+         * We want the narrowest possible set of pcpus (to get the narowest
+         * possible set of nodes). What we need is the cpumask of where the
+         * domain can run (the union of the hard affinity of all its vcpus),
+         * and the full mask of where it would prefer to run (the union of
+         * the soft affinity of all its various vcpus). Let's build them.
+         */
+        for_each_sched_unit ( d, unit )
+        {
+            cpumask_or(dom_cpumask, dom_cpumask, unit->cpu_hard_affinity);
+            cpumask_or(dom_cpumask_soft, dom_cpumask_soft,
+                       unit->cpu_soft_affinity);
+        }
+        /* Filter out non-online cpus */
+        cpumask_and(dom_cpumask, dom_cpumask, online);
+        ASSERT(!cpumask_empty(dom_cpumask));
+        /* And compute the intersection between hard, online and soft */
+        cpumask_and(dom_cpumask_soft, dom_cpumask_soft, dom_cpumask);
+
+        /*
+         * If not empty, the intersection of hard, soft and online is the
+         * narrowest set we want. If empty, we fall back to hard&online.
+         */
+        dom_affinity = cpumask_empty(dom_cpumask_soft) ?
+                           dom_cpumask : dom_cpumask_soft;
+
+        nodes_clear(d->node_affinity);
+        for_each_cpu ( cpu, dom_affinity )
+            node_set(cpu_to_node(cpu), d->node_affinity);
+    }
+
+    spin_unlock(&d->node_affinity_lock);
+
+    free_cpumask_var(dom_cpumask_soft);
+    free_cpumask_var(dom_cpumask);
+}
+
 typedef long ret_t;
 
 #endif /* !COMPAT */
diff --git a/xen/include/xen/domain.h b/xen/include/xen/domain.h
index 769302057b..c931eab4a9 100644
--- a/xen/include/xen/domain.h
+++ b/xen/include/xen/domain.h
@@ -27,6 +27,9 @@ struct xen_domctl_getdomaininfo;
 void getdomaininfo(struct domain *d, struct xen_domctl_getdomaininfo *info);
 void arch_get_domain_info(const struct domain *d,
                           struct xen_domctl_getdomaininfo *info);
+int xenctl_bitmap_to_bitmap(unsigned long *bitmap,
+                            const struct xenctl_bitmap *xenctl_bitmap,
+                            unsigned int nbits);
 
 /*
  * Arch-specifics.
diff --git a/xen/include/xen/sched.h b/xen/include/xen/sched.h
index 9f7bc69293..2507a833c2 100644
--- a/xen/include/xen/sched.h
+++ b/xen/include/xen/sched.h
@@ -50,6 +50,9 @@ DEFINE_XEN_GUEST_HANDLE(vcpu_runstate_info_compat_t);
 /* A global pointer to the hardware domain (usually DOM0). */
 extern struct domain *hardware_domain;
 
+/* A global pointer to the initial cpupool (POOL0). */
+extern struct cpupool *cpupool0;
+
 #ifdef CONFIG_LATE_HWDOM
 extern domid_t hardware_domid;
 #else
@@ -929,6 +932,8 @@ int vcpu_temporary_affinity(struct vcpu *v, unsigned int 
cpu, uint8_t reason);
 int vcpu_set_hard_affinity(struct vcpu *v, const cpumask_t *affinity);
 int vcpu_set_soft_affinity(struct vcpu *v, const cpumask_t *affinity);
 void restore_vcpu_affinity(struct domain *d);
+int vcpu_affinity_domctl(struct domain *d, uint32_t cmd,
+                         struct xen_domctl_vcpuaffinity *vcpuaff);
 
 void vcpu_runstate_get(struct vcpu *v, struct vcpu_runstate_info *runstate);
 uint64_t get_cpu_idle_time(unsigned int cpu);
@@ -1054,6 +1059,8 @@ int cpupool_add_domain(struct domain *d, int poolid);
 void cpupool_rm_domain(struct domain *d);
 int cpupool_move_domain(struct domain *d, struct cpupool *c);
 int cpupool_do_sysctl(struct xen_sysctl_cpupool_op *op);
+int cpupool_get_id(const struct domain *d);
+cpumask_t *cpupool_valid_cpus(struct cpupool *pool);
 void schedule_dump(struct cpupool *c);
 extern void dump_runq(unsigned char key);
 
-- 
2.16.4


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.