From: David Ahern <dsahern@gmail.com>
To: KVM mailing list <kvm@vger.kernel.org>
Subject: use of PMU in guest generates messages in host
Date: Wed, 11 Jan 2012 13:47:55 -0700 [thread overview]
Message-ID: <4F0DF57B.5040500@gmail.com> (raw)
Using latest kernel tree (e343a895a9f342f239c5e3c5ffc6c0b1707e6244)
which has KVM bits for using PMU in the guest. Host and guest are both
running Fedora 16, 64-bit, with this kernel.
Running this command in the guest:
perf stat -ddd -- openssl speed aes
Generates this in the host:
[74728.221863] kvm_set_msr_common: 2760 callbacks suppressed
[74728.221950] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f701
[74728.222115] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f701
[74728.222858] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f701
[74728.223018] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f701
[74728.223851] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f701
[74728.224009] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f701
[74728.224843] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f701
[74728.224997] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f701
[74728.225842] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f001
[74728.226010] kvm: 28217: cpu2 unhandled wrmsr: 0x1a6 data f001
David
next reply other threads:[~2012-01-11 20:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-11 20:47 David Ahern [this message]
2012-01-12 6:26 ` use of PMU in guest generates messages in host Gleb Natapov
2012-01-12 14:02 ` David Ahern
2012-01-12 14:14 ` Gleb Natapov
2012-01-12 17:07 ` David Ahern
2012-01-12 17:17 ` Avi Kivity
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