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Re: [Qemu-block] [PATCH 0/1] Fixup for DASD geometry detection

From: Kevin Wolf
Subject: Re: [Qemu-block] [PATCH 0/1] Fixup for DASD geometry detection
Date: Tue, 12 Jan 2016 15:25:21 +0100
User-agent: Mutt/1.5.21 (2010-09-15)

Am 14.12.2015 um 16:41 hat Christian Borntraeger geschrieben:
> Kevin,
> here is a fixup for the geometry detection. We tried to be overly
> clever and calculate the cyclinder size for devices > 64k cyls. Now
> this is wrong for the cyls parameter as the interface only has
> 16bit. Large DASD devices have a special token (0xfffe) that 
> indicate to the DASD related code, that you have to calculate
> the cyls size yourself.
> Without this patch QEMU cannot pass through bigger DASD disks
> and complains "cyls must be between 1 and 65535"

Thanks, applied to the block branch.


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