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Re: [Qemu-devel] [PATCH v2 1/1] atapi: make change media detection for g
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-devel] [PATCH v2 1/1] atapi: make change media detection for guests easier |
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Date: |
Mon, 22 Oct 2012 14:05:18 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120605 Thunderbird/13.0 |
Am 04.10.2012 16:16, schrieb Pavel Hrdina:
> If you have a guest with a media in the cdrom and you change it,
> the windows and the linux guests cannot properly recognize this
> media change.
> For this purpose we have to pretend for some time (2s), that we
> don't have any media inserted.
This used to work with the existing code, by exposing an intermediate
"no medium" state for exactly one request. Do you know since when this
is broken? Is it a qemu regression, or does it happen only with newer
Windows and Linux versions?
If possible at all, I'd prefer not to use a timer here.
Also I'm relatively sure that your code will break when migrating during
the 2s of "no medium".
Kevin