From 7786ae40ba4e7d5b9ebbfd07924f4379e218c6ef Mon Sep 17 00:00:00 2001
From: "Hyman Huang(黄勇)" <huangy81@chinatelecom.cn>
Date: Tue, 29 Jun 2021 16:01:18 +0000
Subject: KVM: introduce dirty_pages and kvm_dirty_ring_enabled
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dirty_pages is used to calculate dirtyrate via dirty ring, when
enabled, kvm-reaper will increase the dirty pages after gfns
being dirtied.

kvm_dirty_ring_enabled shows if kvm-reaper is working. dirtyrate
thread could use it to check if measurement can base on dirty
ring feature.

Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Message-Id: <fee5fb2ab17ec2159405fc54a3cff8e02322f816.1624040308.git.huangy81@chinatelecom.cn>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 accel/stubs/kvm-stub.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'accel/stubs/kvm-stub.c')

diff --git a/accel/stubs/kvm-stub.c b/accel/stubs/kvm-stub.c
index 5b1d00a222..5319573e00 100644
--- a/accel/stubs/kvm-stub.c
+++ b/accel/stubs/kvm-stub.c
@@ -147,4 +147,9 @@ bool kvm_arm_supports_user_irq(void)
 {
     return false;
 }
+
+bool kvm_dirty_ring_enabled(void)
+{
+    return false;
+}
 #endif
-- 
cgit 1.4.1