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Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD |
Date: |
Wed, 06 Mar 2013 10:25:35 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux) |
Aurelien Jarno <address@hidden> writes:
> On Tue, Mar 05, 2013 at 08:22:57AM +0800, Peter Maydell wrote:
>> On 5 March 2013 08:19, Aurelien Jarno <address@hidden> wrote:
>> > The versatile express has no SCSI card, but instead boot on an SD card.
>> > Change block_default_type accordingly.
>>
>> I notice that no other board has SD as the block_default_type...
>>
>> What effect does this actually have on the user experience?
>
> The effect is that the user don't has to specify the interface type.
> Basically:
>
> -drive file=/path/to/file,if=sd
> can be replaced by
> -drive file=/path/to/file
>
> It means the user doesn't have to know the details of the machine to
> know how to attach a disk.
Correct. Also affects monitor commands.
See commit 2d0d2837.
> Note that the user here can also be a script,
> which then becomes a bit simpler.
>
>> Also, won't vl.c now try to create a cdrom drive on the SD interface?
>>
>
> It still creates a cdrom drive as before, but still doesn't try to
> connect it to the SD interface. In short the behaviour on that side is
> unchanged.
An if=sd CD-ROM is weird, but unused weirdness has no effect.
If it bothers you, set .no_cdrom along with .block_default_type.
See also my unsuccessful attempt at getting rid of unused default
drives[*], and observations made during review of Peter's followup
attempt to improve SD cards[**].
[*] http://lists.nongnu.org/archive/html/qemu-devel/2012-08/msg02993.html
[**] http://lists.nongnu.org/archive/html/qemu-devel/2012-08/msg03160.html
- [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Aurelien Jarno, 2013/03/04
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Peter Maydell, 2013/03/04
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Aurelien Jarno, 2013/03/04
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD,
Markus Armbruster <=
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Peter Maydell, 2013/03/15
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Aurelien Jarno, 2013/03/15
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Peter Maydell, 2013/03/15
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Aurelien Jarno, 2013/03/16
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Peter Maydell, 2013/03/16
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Aurelien Jarno, 2013/03/17
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Peter Maydell, 2013/03/17
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Paolo Bonzini, 2013/03/17
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Peter Maydell, 2013/03/17
- Re: [Qemu-devel] [PATCH] hw/vexpress: set default block type to SD, Aurelien Jarno, 2013/03/17