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From: Paul Brook <paul@codesourcery.com>
To: Avi Kivity <avi@redhat.com>
Cc: Cam Macdonell <cam@cs.ualberta.ca>,
	qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: [Qemu-devel] [PATCH] Inter-VM shared memory PCI device
Date: Wed, 10 Mar 2010 17:41:47 +0000	[thread overview]
Message-ID: <201003101741.47300.paul@codesourcery.com> (raw)
In-Reply-To: <4B97D752.3080700@redhat.com>

> > You're much better off using a bulk-data transfer API that relaxes
> > coherency requirements.  IOW, shared memory doesn't make sense for TCG
> 
> Rather, tcg doesn't make sense for shared memory smp.  But we knew that
> already.

In think TCG SMP is a hard, but soluble problem, especially when you're 
running guests used to coping with NUMA.

TCG interacting with third parties via shared memory is probably never going 
to make sense.

Paul

  reply	other threads:[~2010-03-10 17:42 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-05 23:52 [Qemu-devel] [PATCH] Support adding a file to qemu's ram allocation Cam Macdonell
2010-03-05 23:52 ` [Qemu-devel] [PATCH] Inter-VM shared memory PCI device Cam Macdonell
2010-03-07 22:53   ` Paul Brook
2010-03-08  1:45     ` Jamie Lokier
2010-03-08  9:48       ` Alexander Graf
2010-03-08  9:54         ` Jamie Lokier
2010-03-08 10:57           ` Alexander Graf
2010-03-09 21:41           ` Anthony Liguori
2010-03-08 13:04       ` Paul Brook
2010-03-09 19:00         ` Jamie Lokier
2010-03-08  9:52     ` Avi Kivity
2010-03-08 13:03       ` Paul Brook
2010-03-08 13:16         ` Avi Kivity
2010-03-09 20:11           ` Jamie Lokier
2010-03-09 21:44           ` Anthony Liguori
2010-03-10  9:25             ` Avi Kivity
2010-03-10 17:13               ` Anthony Liguori
2010-03-10 17:30                 ` Avi Kivity
2010-03-10 17:41                   ` Paul Brook [this message]
2010-03-11  6:33                     ` Avi Kivity
2010-03-11 12:21                       ` Paul Brook
2010-03-09 20:12         ` Jamie Lokier
2010-03-10  0:03           ` Paul Brook
2010-03-10  4:38             ` Cam Macdonell
2010-03-10  9:29               ` Avi Kivity
2010-03-10 11:13                 ` Paul Brook
2010-03-11  3:10             ` Jamie Lokier
2010-03-11  4:37               ` Nick Piggin
2010-03-11 14:38                 ` malc
2010-03-08  9:56   ` [Qemu-devel] " Avi Kivity
2010-03-08 17:57     ` Cam Macdonell
2010-03-09 10:29       ` Avi Kivity
     [not found]         ` <8286e4ee1003090724m1ef0b571g8b705a24e36e1753@mail.gmail.com>
2010-03-09 15:27           ` [Qemu-devel] " Cam Macdonell
2010-03-09 17:28             ` [Qemu-devel] " Avi Kivity
2010-03-09 17:34               ` Anthony Liguori
2010-03-09 18:34               ` Cam Macdonell
2010-03-10  9:21                 ` Avi Kivity
2010-03-10 16:36                   ` Cam Macdonell
2010-03-11  6:49                     ` Avi Kivity
2010-03-09 12:49       ` Arnd Bergmann
2010-03-09 13:03         ` Avi Kivity
2010-03-09 16:44           ` Cam Macdonell
2010-03-10 14:04             ` Arnd Bergmann
2010-03-11  6:50               ` Avi Kivity
2010-03-11 12:57                 ` Arnd Bergmann
2010-03-11 13:07                   ` Avi Kivity
2010-03-11 14:32                     ` Arnd Bergmann
2010-03-08  9:53 ` [Qemu-devel] Re: [PATCH] Support adding a file to qemu's ram allocation Avi Kivity

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