From: "H. Peter Anvin" <hpa@zytor.com>
To: Andi Kleen <ak@suse.de>
Cc: Alexey Dobriyan <adobriyan@openvz.org>,
akpm@osdl.org, linux-kernel@vger.kernel.org,
davej@codemonkey.org.uk, devel@vger.kernel.org
Subject: Re: [PATCH] rdmsr_on_cpu, wrmsr_on_cpu
Date: Thu, 18 Jan 2007 16:45:24 -0800 [thread overview]
Message-ID: <45B014A4.8030801@zytor.com> (raw)
In-Reply-To: <200701191140.59612.ak@suse.de>
Andi Kleen wrote:
> On Friday 19 January 2007 10:40, H. Peter Anvin wrote:
>
>> It would, but rather than having the paravirtualization interfaces
>> duplicate out of control, we could/should implement the less generic
>> features in terms of the more generic, above the pvz layer.
>
> I can't see any Hypervisors ever allowing those weird MSRs, so
> for paravirtualization it is probably better to just disable then.
>
Don't assume they're going to be "weird." Intel, in particular, is
notorious in forgetting what they have already documented as architectural.
-hpa
prev parent reply other threads:[~2007-01-19 0:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-18 14:45 [PATCH] rdmsr_on_cpu, wrmsr_on_cpu Alexey Dobriyan
2007-01-18 22:14 ` H. Peter Anvin
2007-01-18 23:21 ` Andi Kleen
2007-01-18 23:40 ` H. Peter Anvin
2007-01-19 0:40 ` Andi Kleen
2007-01-19 0:45 ` H. Peter Anvin [this message]
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