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xen-devel
[Xen-devel] Re: Next steps with pv_ops for Xen
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To: |
"Stephen C. Tweedie" <sct@xxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: Next steps with pv_ops for Xen |
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From: |
Gerd Hoffmann <kraxel@xxxxxxxxxx> |
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Date: |
Mon, 03 Dec 2007 13:54:02 +0100 |
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Cc: |
"xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Eduardo Habkost <ehabkost@xxxxxxxxxx>, Juan Quintela <quintela@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>, Glauber de Oliveira Costa <gcosta@xxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, "virtualization@xxxxxxxxxxxxxx" <virtualization@xxxxxxxxxxxxxx> |
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Mon, 03 Dec 2007 04:54:47 -0800 |
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Stephen C. Tweedie wrote:
> Hi all,
>
> driver domains
Looked at the gntdev (grant table mappings for user space) driver,
noticed that one is not self-contained. It needs a hook for page unmapping:
http://xenbits.xensource.com/xen-3.1-testing.hg?rev/7180d2e61f92
plus an s/ptep_get_and_clear_full/zap_pte/ fixup a few changesets
later.
Upstreaming that one could become *uhm* intresting. Nevertheless the
gntdev functionality is quite useful for writing pure userspace
backend drivers ...
cheers,
Gerd
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