X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_barrier.c;h=614ceca6dd81033d759a198374d3fe0f6f3b1921;hb=e346c0bf2e9d047cbb696cd588a5f695b5aa04ca;hp=1115ce0cfc1658f5eeef4e932ef877e5d12e6a5d;hpb=882a72ee6359eb1f28754827a7e41380f275d148;p=palacios-OLD.git

diff --git a/palacios/src/palacios/vmm_barrier.c b/palacios/src/palacios/vmm_barrier.c
index 1115ce0..614ceca 100644
--- a/palacios/src/palacios/vmm_barrier.c
+++ b/palacios/src/palacios/vmm_barrier.c
@@ -19,3 +19,57 @@
 
 
 #include <util/vmm_barrier.h>
+
+
+
+int v3_init_barrier(struct v3_barrier * barrier) {
+    memset(barrier, 0, sizeof(struct v3_barrier));
+    v3_lock_init(&(barrier->lock));
+
+    return 0;
+}
+
+
+int v3_activate_barrier(struct guest_info * core, struct v3_barrier * barrier) {
+    addr_t flag;
+    int acquired = 0;
+    
+    flag = v3_lock_irqsave(barrier->lock);
+
+    if (barrier->active == 0) {
+	barrier->active = 1;
+	acquired = 1;
+    }
+
+    v3_unlock_irqrestore(barrier->lock, flag);
+
+    if (acquired == 0) {
+	return -1;
+    }
+
+
+    // wait for barrier catch
+
+
+    return 0;
+}
+
+
+
+
+int v3_deactivate_barrier(struct v3_barrier * barrier) {
+
+}
+
+
+int v3_check_barrier(struct guest_info * core, struct v3_barrier * barrier) {
+
+    if (barrier->activated == 0) {
+	return 0;
+    }
+    
+    // set cpu bit
+
+    // wait for cpu bit to clear
+
+}