Re: [discuss] Re: [Perfctr-devel] Re: Enabling RDPMC in user space by default

From: Andi Kleen (ak_at_suse.de)
Date: 11/30/05

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    Date:	Wed, 30 Nov 2005 00:18:46 +0100
To: David Gibson <david@gibson.dropbear.id.au>, Andi Kleen <ak@suse.de>, Nicholas Miell <nmiell@comcast.net>, Stephane Eranian <eranian@hpl.hp.com>, Ray Bryant <raybry@mpdtxmail.amd.com>, discuss@x86-64.org, linux-kernel@vger.kernel.org, perfctr-devel@lists.sourceforge.net

    > It need not necessarily remain configurable to be in PMC 0 however.
    > Nor do the the PMC MSRs have to remain fixed..

    If all fails the kernel can always trap and emulate it. But I hope this will
    never be needed.

    -Andi
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