From: Avi Kivity <avi@qumranet.com>
To: Hollis Blanchard <hollisb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Cc: carsteno-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org,
kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
kvm-ppc-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
"Zhang,
Xiantao" <xiantao.zhang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [kvm-ppc-devel] [kvm-devel] [PATCH 0 of 3] create kvm_x86
Date: Sat, 01 Dec 2007 10:04:27 +0000 [thread overview]
Message-ID: <475131AB.90601@qumranet.com> (raw)
In-Reply-To: <1196460490.7103.67.camel@basalt>
Hollis Blanchard wrote:
> I hope to have multiple kvm-ppc-XXX.ko modules loaded simultaneously to
> support different guest types on the same host. I haven't yet figured
> out what that interface should look like, but obviously linking is
> preferable to function pointers where feasible.
>
At least on modern x86, indirect calls are quite cheap. If it can be
done cleanly, of course direct linking is preferable.
--
Any sufficiently difficult bug is indistinguishable from a feature.
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WARNING: multiple messages have this Message-ID (diff)
From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Hollis Blanchard <hollisb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Cc: carsteno-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org,
kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
kvm-ppc-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
"Zhang,
Xiantao" <xiantao.zhang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH 0 of 3] create kvm_x86
Date: Sat, 01 Dec 2007 12:04:27 +0200 [thread overview]
Message-ID: <475131AB.90601@qumranet.com> (raw)
In-Reply-To: <1196460490.7103.67.camel@basalt>
Hollis Blanchard wrote:
> I hope to have multiple kvm-ppc-XXX.ko modules loaded simultaneously to
> support different guest types on the same host. I haven't yet figured
> out what that interface should look like, but obviously linking is
> preferable to function pointers where feasible.
>
At least on modern x86, indirect calls are quite cheap. If it can be
done cleanly, of course direct linking is preferable.
--
Any sufficiently difficult bug is indistinguishable from a feature.
-------------------------------------------------------------------------
SF.Net email is sponsored by: The Future of Linux Business White Paper
from Novell. From the desktop to the data center, Linux is going
mainstream. Let it simplify your IT future.
http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4
next prev parent reply other threads:[~2007-12-01 10:04 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-20 16:57 [PATCH 0 of 3] create kvm_x86 Hollis Blanchard
2007-11-20 16:57 ` [PATCH 1 of 3] Use kvm_x86 to hold x86 specific kvm fields Hollis Blanchard
2007-11-28 21:20 ` [kvm-ppc-devel] [kvm-devel] [PATCH 1 of 3] Use kvm_x86 to hold Anthony Liguori
2007-11-28 21:20 ` [PATCH 1 of 3] Use kvm_x86 to hold x86 specific kvm fields Anthony Liguori
[not found] ` <474DDB97.6090400-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-11-28 21:43 ` [kvm-ppc-devel] [kvm-devel] [PATCH 1 of 3] Use kvm_x86 to hold Hollis Blanchard
2007-11-28 21:43 ` [PATCH 1 of 3] Use kvm_x86 to hold x86 specific kvm fields Hollis Blanchard
2007-11-20 16:57 ` [PATCH 2 of 3] Move vm_stat and apic_access_page to kvm_x86 Hollis Blanchard
2007-11-21 9:09 ` [PATCH 0 of 3] create kvm_x86 Carsten Otte
[not found] ` <4743F5AE.8090707-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
2007-11-21 9:18 ` Avi Kivity
[not found] ` <4743F7DF.4000107-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-21 9:32 ` Amit Shah
2007-11-21 9:44 ` [kvm-ppc-devel] [kvm-devel] " Amit Shah
2007-11-21 9:39 ` Carsten Otte
2007-11-21 9:42 ` Zhang, Xiantao
[not found] ` <42DFA526FC41B1429CE7279EF83C6BDC9E7193-wq7ZOvIWXbMAbVU2wMM1CrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-11-21 9:55 ` Avi Kivity
2007-11-28 21:15 ` [kvm-ppc-devel] [kvm-devel] " Hollis Blanchard
2007-11-28 21:15 ` Hollis Blanchard
2007-11-30 7:26 ` [kvm-ppc-devel] [kvm-devel] " Avi Kivity
2007-11-30 7:26 ` Avi Kivity
[not found] ` <474FBB17.6080800-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-30 8:36 ` [kvm-ppc-devel] [kvm-devel] " Zhang, Xiantao
2007-11-30 8:36 ` Zhang, Xiantao
[not found] ` <42DFA526FC41B1429CE7279EF83C6BDCA397C1-wq7ZOvIWXbMAbVU2wMM1CrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-11-30 9:04 ` [kvm-ppc-devel] [kvm-devel] " Avi Kivity
2007-11-30 9:04 ` Avi Kivity
[not found] ` <474FD234.5060203-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-30 11:42 ` [kvm-ppc-devel] [kvm-devel] " Zhang, Xiantao
2007-11-30 11:42 ` Zhang, Xiantao
2007-11-30 18:43 ` [kvm-ppc-devel] [kvm-devel] " Hollis Blanchard
2007-11-30 18:43 ` Hollis Blanchard
2007-11-30 20:31 ` [kvm-ppc-devel] [kvm-devel] " Avi Kivity
2007-11-30 20:31 ` Avi Kivity
[not found] ` <4750732B.7070502-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-30 21:09 ` [kvm-ppc-devel] [kvm-devel] " Hollis Blanchard
2007-11-30 21:09 ` Hollis Blanchard
2007-11-30 21:43 ` [kvm-ppc-devel] [kvm-devel] " Anthony Liguori
2007-11-30 21:43 ` Anthony Liguori
[not found] ` <47508408.8050202-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-11-30 22:08 ` [kvm-ppc-devel] [kvm-devel] " Hollis Blanchard
2007-11-30 22:08 ` Hollis Blanchard
2007-12-01 10:04 ` Avi Kivity [this message]
2007-12-01 10:04 ` Avi Kivity
2007-12-01 10:02 ` [kvm-ppc-devel] [kvm-devel] " Avi Kivity
2007-12-01 10:02 ` Avi Kivity
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