From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Zachary Amsden <zach@vmware.com>
Cc: Chris Wright <chrisw@sous-sol.org>,
Virtualization Mailing List <virtualization@lists.osdl.org>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: New CPUID/MSR driver; virtualization hooks
Date: Thu, 05 Apr 2007 14:49:16 -0700 [thread overview]
Message-ID: <46156EDC.8080403@goop.org> (raw)
In-Reply-To: <46156D95.4070001@vmware.com>
Zachary Amsden wrote:
> Or implement anything useful at all ... perhaps it might be useful to
> simply wrap them with an -ENOSYS in some cases.
>
> Rusty, Jeremy. Chris - any feedback on MSR support?
I've looked at hpa's patch a bit, but I don't quite get what the point
is yet. Is it that rdmsr/wrmsr can use multiple random registers, so
its necessary to haul them all around? And that cpuid might use more
beyond the current eax-edx?
Xen will trap and emulate any rd/wrmsr instructions, so I don't think it
needs anything beyond native support.
J
next prev parent reply other threads:[~2007-04-05 21:49 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-05 0:50 New CPUID/MSR driver; virtualization hooks H. Peter Anvin
2007-04-05 1:16 ` Chris Wright
2007-04-05 1:23 ` H. Peter Anvin
2007-04-05 5:17 ` Zachary Amsden
2007-04-05 18:03 ` H. Peter Anvin
2007-04-05 21:09 ` Zachary Amsden
2007-04-05 21:09 ` H. Peter Anvin
2007-04-05 21:25 ` Zachary Amsden
2007-04-05 21:17 ` H. Peter Anvin
2007-04-05 21:27 ` Zachary Amsden
2007-04-05 21:40 ` H. Peter Anvin
2007-04-05 21:43 ` Jeremy Fitzhardinge
2007-04-05 21:43 ` Zachary Amsden
2007-04-05 21:49 ` Jeremy Fitzhardinge [this message]
2007-04-05 21:59 ` H. Peter Anvin
2007-04-05 22:19 ` Jeremy Fitzhardinge
2007-04-05 22:31 ` H. Peter Anvin
2007-04-05 21:54 ` Chris Wright
2007-04-05 1:48 ` Tony Breeds
2007-04-05 5:00 ` Zachary Amsden
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