[PATCH 2/4] KVM: introduce kvm_get_manual_dirty_log_protect

[huangy81@chinatelecom.cn]

From: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>

introduce kvm_get_manual_dirty_log_protect for measureing
dirtyrate via dirty bitmap. calculation of dirtyrate need
to sync dirty log and depends on the features of dirty log.

Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
---
 accel/kvm/kvm-all.c  | 6 ++++++
 include/sysemu/kvm.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index e0e88a2..f7d9ae0 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -245,6 +245,12 @@ int kvm_get_max_memslots(void)
     return s->nr_slots;
 }
 
+uint64_t kvm_get_manual_dirty_log_protect(void)
+{
+    KVMState *s = KVM_STATE(current_accel());
+    return s->manual_dirty_log_protect;
+}
+
 /* Called with KVMMemoryListener.slots_lock held */
 static KVMSlot *kvm_get_free_slot(KVMMemoryListener *kml)
 {
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 7b22aeb..b668d49 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -533,6 +533,7 @@ int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source);
 int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target);
 struct ppc_radix_page_info *kvm_get_radix_page_info(void);
 int kvm_get_max_memslots(void);
+uint64_t kvm_get_manual_dirty_log_protect(void);
 
 /* Notify resamplefd for EOI of specific interrupts. */
 void kvm_resample_fd_notify(int gsi);
-- 
1.8.3.1