diff mbox series

[v22,5/8] accel/kvm/kvm-all: Introduce kvm_dirty_ring_size function

Message ID f403161a18b8122071605131b9750c8c92c49bf9.1648748793.git.huangy81@chinatelecom.cn
State New
Headers show
Series [v22,1/8] accel/kvm/kvm-all: Refactor per-vcpu dirty ring reaping | expand

Commit Message

Hyman Huang March 31, 2022, 5:49 p.m. UTC 
From: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>

Introduce kvm_dirty_ring_size util function to help calculate
dirty ring ful time.

Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Acked-by: Peter Xu <peterx@redhat.com>
---
 accel/kvm/kvm-all.c    | 5 +++++
 accel/stubs/kvm-stub.c | 6 ++++++
 include/sysemu/kvm.h   | 2 ++
 3 files changed, 13 insertions(+)
diff mbox series

Patch

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index c30870ae..95deab9 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -2313,6 +2313,11 @@  bool kvm_dirty_ring_enabled(void)
     return kvm_state->kvm_dirty_ring_size ? true : false;
 }
 
+uint32_t kvm_dirty_ring_size(void)
+{
+    return kvm_state->kvm_dirty_ring_size;
+}
+
 static int kvm_init(MachineState *ms)
 {
     MachineClass *mc = MACHINE_GET_CLASS(ms);
diff --git a/accel/stubs/kvm-stub.c b/accel/stubs/kvm-stub.c
index 3345882..c5aafaa 100644
--- a/accel/stubs/kvm-stub.c
+++ b/accel/stubs/kvm-stub.c
@@ -148,3 +148,9 @@  bool kvm_dirty_ring_enabled(void)
 {
     return false;
 }
+
+uint32_t kvm_dirty_ring_size(void)
+{
+    return 0;
+}
+#endif
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index a783c78..efd6dee 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -582,4 +582,6 @@  bool kvm_cpu_check_are_resettable(void);
 bool kvm_arch_cpu_check_are_resettable(void);
 
 bool kvm_dirty_ring_enabled(void);
+
+uint32_t kvm_dirty_ring_size(void);
 #endif