[Xen-devel] [PATCH 7/7] mini-os: Moved force_evtchn_callback to header

[Thomas Leonard <talex5@xxxxxxxxx>]

From: Karim Raslan <karim.allah.ahmed@xxxxxxxxx>

Signed-off-by: Karim Allah Ahmed <karim.allah.ahmed@xxxxxxxxx>
[talex5@xxxxxxxxx: separated from big ARM commit]
Signed-off-by: Thomas Leonard <talex5@xxxxxxxxx>
---
 extras/mini-os/hypervisor.c         | 20 +-------------------
 extras/mini-os/include/hypervisor.h |  1 -
 extras/mini-os/include/x86/os.h     | 17 +++++++++++++++++
 3 files changed, 18 insertions(+), 20 deletions(-)

diff --git a/extras/mini-os/hypervisor.c b/extras/mini-os/hypervisor.c
index b4688a0..9c79d5d 100644
--- a/extras/mini-os/hypervisor.c
+++ b/extras/mini-os/hypervisor.c
@@ -71,23 +71,6 @@ void do_hypervisor_callback(struct pt_regs *regs)
     in_callback = 0;
 }
 
-void force_evtchn_callback(void)
-{
-    int save;
-    vcpu_info_t *vcpu;
-    vcpu = &HYPERVISOR_shared_info->vcpu_info[smp_processor_id()];
-    save = vcpu->evtchn_upcall_mask;
-
-    while (vcpu->evtchn_upcall_pending) {
-        vcpu->evtchn_upcall_mask = 1;
-        barrier();
-        do_hypervisor_callback(NULL);
-        barrier();
-        vcpu->evtchn_upcall_mask = save;
-        barrier();
-    };
-}
-
 inline void mask_evtchn(uint32_t port)
 {
     shared_info_t *s = HYPERVISOR_shared_info;
@@ -110,8 +93,7 @@ inline void unmask_evtchn(uint32_t port)
               &vcpu_info->evtchn_pending_sel) )
     {
         vcpu_info->evtchn_upcall_pending = 1;
-        if ( !vcpu_info->evtchn_upcall_mask )
-            force_evtchn_callback();
+        force_evtchn_callback();
     }
 }
 
diff --git a/extras/mini-os/include/hypervisor.h 
b/extras/mini-os/include/hypervisor.h
index a62cb78..9e9cac8 100644
--- a/extras/mini-os/include/hypervisor.h
+++ b/extras/mini-os/include/hypervisor.h
@@ -35,7 +35,6 @@ extern union start_info_union start_info_union;
 #define start_info (start_info_union.start_info)
 
 /* hypervisor.c */
-void force_evtchn_callback(void);
 void do_hypervisor_callback(struct pt_regs *regs);
 void mask_evtchn(uint32_t port);
 void unmask_evtchn(uint32_t port);
diff --git a/extras/mini-os/include/x86/os.h b/extras/mini-os/include/x86/os.h
index 73b8297..8eea1be 100644
--- a/extras/mini-os/include/x86/os.h
+++ b/extras/mini-os/include/x86/os.h
@@ -160,6 +160,23 @@ do {                                                       
                \
  */
 typedef struct { volatile int counter; } atomic_t;
 
+static inline void force_evtchn_callback(void)
+{
+    int save;
+    vcpu_info_t *vcpu;
+    vcpu = &HYPERVISOR_shared_info->vcpu_info[smp_processor_id()];
+    save = vcpu->evtchn_upcall_mask;
+
+    while (vcpu->evtchn_upcall_pending) {
+        vcpu->evtchn_upcall_mask = 1;
+        barrier();
+        do_hypervisor_callback(NULL);
+        barrier();
+        vcpu->evtchn_upcall_mask = save;
+        barrier();
+    };
+}
+
 
 /************************** i386 *******************************/
 #ifdef __INSIDE_MINIOS__
-- 
2.0.0


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