[PATCH 6/8] stabilish default affinity for newly created cpus

[Glauber Costa <gcosta@redhat.com>]

Signed-off-by: Glauber Costa <gcosta@redhat.com>
---
 qemu/qemu-kvm.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/qemu/qemu-kvm.c b/qemu/qemu-kvm.c
index a36fbf6..80fe8e5 100644
--- a/qemu/qemu-kvm.c
+++ b/qemu/qemu-kvm.c
@@ -68,6 +68,12 @@ void kvm_register_default_affinities(void)
     }
 }
 
+static inline void kvm_default_affinity(int cpu)
+{
+    sched_setaffinity(vcpu_info[cpu].thread_id, sizeof(cpu_set_t),
+                      &vcpu_info[cpu].cpu_set);
+}
+
 static inline unsigned long kvm_get_thread_id(void)
 {
     return syscall(SYS_gettid);
@@ -353,6 +359,7 @@ static void *ap_main_loop(void *_env)
     vcpu = &vcpu_info[env->cpu_index];
     vcpu->env = env;
     vcpu->thread_id = kvm_get_thread_id();
+    kvm_default_affinity(env->cpu_index);
     sigfillset(&signals);
     //sigdelset(&signals, SIG_IPI);
     sigprocmask(SIG_BLOCK, &signals, NULL);
@@ -400,6 +407,7 @@ int kvm_init_ap(void)
     vcpu = &vcpu_info[0];
     vcpu->env = first_cpu;
     vcpu->thread_id = kvm_get_thread_id();
+    kvm_default_affinity(0);
     signal(SIG_IPI, sig_ipi_handler);
     for (i = 1; i < smp_cpus; ++i) {
         kvm_init_new_ap(i, env);
-- 
1.5.0.6


-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/