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Re: [Xen-devel] exception looking up device number for hda

To: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] exception looking up device number for hda
From: Arun Sharma <arun.sharma@xxxxxxxxx>
Date: Mon, 08 Aug 2005 17:06:54 -0700
Cc: Mike Wray <mike.wray@xxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, takebe_akio@xxxxxxxxxxxxxx
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Mark Williamson wrote:
I was looking for suggestions as to how:

a) IDE hard drives for VMX domains should be configured
b) VBD based devices for VMX domains should be configured

Ah, I guess we have to distinguish the two...

Hope about an optional: vbd:/emu: prefix (or similar) on the second part of the triplet for a disk? The default (for non VMX domains) could be "vbd" so existing behaviour would remain the same.

Sounds good to me. How about:

hda             = VBD hda
vbd://hda       = VBD hda
ioemu://hda     = IDE hda

The VBD patches are not ready yet - so I'd like to propose that we do:

-            self.create_configured_devices()
+           if self.image.ostype != 'vmx':
+                self.create_configured_devices()


-        self.create_blkif()
+       if self.image.ostype != 'vmx':
+            self.create_blkif()

When our VBD patches are ready, we'll revert this.


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