From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: "Nakajima, Jun" <jun.nakajima-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Status of SMP?
Date: Sun, 18 Mar 2007 07:48:17 +0200 [thread overview]
Message-ID: <45FCD2A1.8040704@qumranet.com> (raw)
In-Reply-To: <8FFF7E42E93CC646B632AB40643802A8023B8983-1a9uaKK1+wJcIJlls4ac1rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
Nakajima, Jun wrote:
> Avi Kivity wrote:
>
>> I'd also like to add a read-only memory type so that apic reads can
>> proceed natively rather than be emulated (the TODO has this now).
>>
>
> I don't understand how this can work.
You're right - it can't. I thought all read accesses are static and
side-effect-free, but reading the timer is not static.
> Instead, we should use the
> hardware-based virtualization for the local APIC.
>
Can you point me at documentation for that? What I have only mentions
tpr/cr8 shadow, but not much else.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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next prev parent reply other threads:[~2007-03-18 5:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-13 12:47 Status of SMP? Gregory Haskins
[not found] ` <45F66525.BA47.005A.0-Et1tbQHTxzrQT0dZR+AlfA@public.gmane.org>
2007-03-13 13:16 ` Avi Kivity
[not found] ` <45F67F12.BA47.005A.0@novell.com>
[not found] ` <45F6B962.9070301@qumranet.com>
[not found] ` <45F684E7.BA47.005A.0@novell.com>
[not found] ` <45F6BEC0.1010906@qumranet.com>
[not found] ` <45F68E68.BA47.005A.0@novell.com>
2007-03-13 15:47 ` Fwd: " Gregory Haskins
[not found] ` <45F6A426.9090004-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-03-14 21:09 ` Nakajima, Jun
[not found] ` <8FFF7E42E93CC646B632AB40643802A802385E65-1a9uaKK1+wJcIJlls4ac1rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-03-15 8:43 ` Avi Kivity
[not found] ` <45F90728.2040207-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-03-15 22:08 ` Nakajima, Jun
[not found] ` <8FFF7E42E93CC646B632AB40643802A8023B861B-1a9uaKK1+wJcIJlls4ac1rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-03-16 6:46 ` Avi Kivity
[not found] ` <45FA3D2F.4070603-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-03-16 15:21 ` Nakajima, Jun
[not found] ` <8FFF7E42E93CC646B632AB40643802A8023B8983-1a9uaKK1+wJcIJlls4ac1rfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-03-18 5:48 ` Avi Kivity [this message]
2007-03-16 14:35 ` Huang2, Wei
2007-03-16 17:51 ` Huang2, Wei
[not found] ` <7D748C767B7FA541A8AC5504A4C89A23015685C1-SXV0rU3j2e+jL8BtgrxzBQC/G2K4zDHf@public.gmane.org>
2007-03-18 5:14 ` Avi Kivity
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