From: Andi Kleen <ak@linux.intel.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Peter Wu <peter@lekensteyn.nl>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host
Date: Fri, 21 Mar 2014 14:37:53 -0700 [thread overview]
Message-ID: <20140321213753.GK3132@tassilo.jf.intel.com> (raw)
In-Reply-To: <970fd799-8d4c-4759-8a96-1291b411f307@email.android.com>
On Fri, Mar 21, 2014 at 01:46:04PM -0700, H. Peter Anvin wrote:
> Not really. That is equally braindamaged. The problem is that KVM is telling the host that our is something it simply cannot be.
Well it has to pick something. It's unlikely it will ever implement 100% of that particular CPU.
0 is the best you can get in many cases.
Also I thought Xen did return 0.
-Andi
next prev parent reply other threads:[~2014-03-21 21:37 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-21 17:42 GPF in intel_pmu_lbr_reset() with qemu -cpu host Peter Wu
2014-03-21 17:46 ` Peter Wu
2014-03-21 19:04 ` Venkatesh Srinivas
2014-03-21 19:09 ` H. Peter Anvin
2014-03-22 7:54 ` Paolo Bonzini
2014-03-22 8:50 ` Gleb Natapov
2014-03-22 10:05 ` Peter Wu
2014-03-22 12:27 ` Gleb Natapov
2014-03-22 21:46 ` H. Peter Anvin
2014-03-22 22:00 ` Peter Wu
2014-03-26 7:23 ` Wu, Feng
2014-03-26 9:38 ` Paolo Bonzini
2014-03-21 19:29 ` Andi Kleen
2014-03-21 20:46 ` H. Peter Anvin
2014-03-21 21:37 ` Andi Kleen [this message]
2014-03-21 21:41 ` H. Peter Anvin
2014-03-21 21:48 ` Andi Kleen
2014-03-21 21:55 ` H. Peter Anvin
2014-03-22 0:22 ` Andi Kleen
2014-03-22 0:26 ` H. Peter Anvin
2014-03-22 0:30 ` Andi Kleen
2014-03-22 0:34 ` H. Peter Anvin
2014-03-22 10:01 ` Borislav Petkov
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