From: Suleiman Souhlal <suleiman@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <seanjc@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Chao Gao <chao.gao@intel.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
ssouhlal@freebsd.org, Suleiman Souhlal <suleiman@google.com>
Subject: [PATCH v2 3/3] KVM: x86: Document host suspend being included in steal time.
Date: Tue, 20 Aug 2024 13:35:43 +0900 [thread overview]
Message-ID: <20240820043543.837914-4-suleiman@google.com> (raw)
In-Reply-To: <20240820043543.837914-1-suleiman@google.com>
Steal time now includes the time that the host was suspended.
Signed-off-by: Suleiman Souhlal <suleiman@google.com>
---
Documentation/virt/kvm/x86/msr.rst | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/Documentation/virt/kvm/x86/msr.rst b/Documentation/virt/kvm/x86/msr.rst
index 3aecf2a70e7b43..81c17c2200ca2f 100644
--- a/Documentation/virt/kvm/x86/msr.rst
+++ b/Documentation/virt/kvm/x86/msr.rst
@@ -294,8 +294,10 @@ data:
steal:
the amount of time in which this vCPU did not run, in
- nanoseconds. Time during which the vcpu is idle, will not be
- reported as steal time.
+ nanoseconds. This includes the time during which the host is
+ suspended. However, the case where the host suspends during a
+ VM migration might not be correctly accounted. Time during
+ which the vcpu is idle, will not be reported as steal time.
preempted:
indicate the vCPU who owns this struct is running or
--
2.46.0.184.g6999bdac58-goog
next prev parent reply other threads:[~2024-08-20 4:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-20 4:35 [PATCH v2 0/3] KVM: x86: Include host suspended time in steal time Suleiman Souhlal
2024-08-20 4:35 ` [PATCH v2 1/3] KVM: Introduce kvm_total_suspend_ns() Suleiman Souhlal
2024-08-21 5:40 ` Chao Gao
2024-08-21 6:01 ` Suleiman Souhlal
2024-08-20 4:35 ` [PATCH v2 2/3] KVM: x86: Include host suspended time in steal time Suleiman Souhlal
2024-08-21 6:31 ` Chao Gao
2024-08-23 4:17 ` Suleiman Souhlal
2024-08-23 5:25 ` Chao Gao
2024-08-23 5:43 ` Suleiman Souhlal
2024-08-28 9:56 ` Suleiman Souhlal
2024-08-20 4:35 ` Suleiman Souhlal [this message]
2024-09-25 13:54 ` [PATCH v2 0/3] " Sean Christopherson
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