From: huangy81@chinatelecom.cn
To: <qemu-devel@nongnu.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>, <kvm@vger.kernel.org>,
Juan Quintela <quintela@redhat.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Peter Xu <peterx@redhat.com>, Hyman <huangy81@chinatelecom.cn>
Subject: [PATCH v1 1/6] KVM: add kvm_dirty_ring_enabled function
Date: Tue, 1 Jun 2021 01:03:18 +0800 [thread overview]
Message-ID: <e105cd9e381fd4ae121952aae2a79cd6ebc612a8.1622479161.git.huangy81@chinatelecom.cn> (raw)
In-Reply-To: <cover.1622479161.git.huangy81@chinatelecom.cn>
From: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
introduce kvm_dirty_ring_enabled to show if kvm-reaper is working.
dirtyrate thread could use it to check if calculation can base on
dirty ring feature.
Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
---
accel/kvm/kvm-all.c | 5 +++++
include/sysemu/kvm.h | 1 +
2 files changed, 6 insertions(+)
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index c7ec538850..2e96b77b31 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -2293,6 +2293,11 @@ bool kvm_vcpu_id_is_valid(int vcpu_id)
return vcpu_id >= 0 && vcpu_id < kvm_max_vcpu_id(s);
}
+bool kvm_dirty_ring_enabled(void)
+{
+ return kvm_state->kvm_dirty_ring_size ? true : false;
+}
+
static int kvm_init(MachineState *ms)
{
MachineClass *mc = MACHINE_GET_CLASS(ms);
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index a1ab1ee12d..7b22aeb6ae 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -547,4 +547,5 @@ bool kvm_cpu_check_are_resettable(void);
bool kvm_arch_cpu_check_are_resettable(void);
+bool kvm_dirty_ring_enabled(void);
#endif
--
2.24.3
next prev parent reply other threads:[~2021-05-31 17:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-31 17:02 [PATCH v1 0/6] support dirtyrate at the granualrity of vcpu huangy81
2021-05-31 17:03 ` huangy81 [this message]
2021-05-31 17:04 ` [PATCH v1 2/6] KVM: introduce dirty_pages into CPUState huangy81
2021-06-01 23:20 ` Peter Xu
2021-06-02 0:27 ` Hyman Huang
2021-06-02 1:26 ` Peter Xu
2021-05-31 17:05 ` [PATCH v1 3/6] migration/dirtyrate: add vcpu option for qmp calc-dirty-rate huangy81
2021-05-31 17:05 ` [PATCH v1 4/6] migration/dirtyrate: adjust struct DirtyRateStat huangy81
2021-05-31 17:05 ` [PATCH v1 5/6] migration/dirtyrate: check support of calculation for vcpu huangy81
2021-05-31 17:06 ` [PATCH v1 6/6] migration/dirtyrate: implement dirty-ring dirtyrate calculation huangy81
2021-06-01 21:54 ` [PATCH v1 0/6] support dirtyrate at the granualrity of vcpu Peter Xu
2021-06-02 0:51 ` Hyman Huang
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