linux-kernel - Re: [PATCH] x86/rapl: Do not load in a guest

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Message-ID: <5661D2E1.8040907@redhat.com>
Date:	Fri, 4 Dec 2015 18:52:33 +0100
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Jacob Pan <jacob.jun.pan@...ux.intel.com>,
	Ingo Molnar <mingo@...nel.org>
Cc:	Borislav Petkov <bp@...en8.de>, "H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Amy Wiles <amy.l.wiles@...el.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] x86/rapl: Do not load in a guest



On 04/12/2015 18:46, Jacob Pan wrote:
> But I still think hypervisor check is sufficient. I don't there will
> ever be a use case for VM to control platform level power. A disaster
> for sure.

There isn't just usual VMs.  There are partitioning hypervisors for example.

Paolo
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