From: Oscar Fernando Garcia <oscar@softlab.cs.tsukuba.ac.jp>
To: kvm@vger.kernel.org
Subject: non-root mode and preemption
Date: Mon, 13 Jun 2016 19:06:36 +0900 [thread overview]
Message-ID: <575E85AC.4080604@softlab.cs.tsukuba.ac.jp> (raw)
Good Morning,
I have a simple question. In KVM code: /arch/x86/kvm/x86.c when the
function vcpu_enter_guest is called, the run function (
kvm_x86_ops->run(vcpu)) is called with preemption and irqs disabled.
My question is, running in non-root mode with preemption and irqs
disabled affects the latency of other processes or VPCUs running in the
same CPU?
Thank you
Oscar
next reply other threads:[~2016-06-13 10:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-13 10:06 Oscar Fernando Garcia [this message]
2016-06-13 13:45 ` non-root mode and preemption Paolo Bonzini
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