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Re: [Qemu-devel] [PATCH 32/32] Relax IDE CHS limits from 16383, 16, 63 t

From: Kevin Wolf
Subject: Re: [Qemu-devel] [PATCH 32/32] Relax IDE CHS limits from 16383, 16, 63 to 65535, 16, 255
Date: Thu, 05 Jul 2012 17:27:03 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120605 Thunderbird/13.0

Am 29.06.2012 17:34, schrieb Markus Armbruster:
> New limits straight from ATA4 6.2 Register delivered data transfer
> command sector addressing.
> I figure the old sector limit 63 was blindly copied from the BIOS
> int 13 limit.  Doesn't apply to the hardware.  No idea where the old
> cylinder limit comes from.
> Signed-off-by: Markus Armbruster <address@hidden>

Now I think we have the very same thing in IDE, SCSI and virtio-blk.
Would it make sense to have a helper function in hd-geometry.c that
takes and validates the geometry from a BlockConf, applies defaults and
puts the result into device state fields passed by reference?


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