From: Paolo Bonzini <pbonzini@redhat.com>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: aik@truffula.fritz.box, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 09/17] memory: iommu support
Date: Thu, 02 May 2013 07:24:54 +0200 [thread overview]
Message-ID: <5181F8A6.2000201@redhat.com> (raw)
In-Reply-To: <20130502030508.GG13041@truffula.fritz.box>
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Il 02/05/2013 05:05, David Gibson ha scritto:
>>> I think the problem is that we do not have reference counting,
>>> and this makes it simpler to manage the lifetime. It can be
>>> changed later.
> I don't really follow this logic. In the existing case, the iommu
> target is always system memory, and there's already
> address_space_memory which always exists.
But does the tce->iommu address space always exist? Can you have
multiple domains and so on?
I can surely change it if you prefer, after all you're the only user
right now (address_space_memory always exists). But I'm not 100% sure
it will create more problems than it solves.
Paolo
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next prev parent reply other threads:[~2013-05-02 5:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-01 4:35 [Qemu-devel] [PATCH 09/17] memory: iommu support David Gibson
2013-05-01 16:10 ` Paolo Bonzini
2013-05-02 3:05 ` David Gibson
2013-05-02 5:24 ` Paolo Bonzini [this message]
2013-05-02 6:28 ` David Gibson
2013-05-02 7:36 ` Paolo Bonzini
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