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Re: [Qemu-devel] [PATCH 00/23] Suppress unused default drives
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH 00/23] Suppress unused default drives |
Date: |
Thu, 09 Aug 2012 16:33:15 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux) |
Peter Maydell <address@hidden> writes:
> On 9 August 2012 15:08, Markus Armbruster <address@hidden> wrote:
>> Peter Maydell <address@hidden> writes:
>>> For clarity: what are the negative effects that result from
>>> machines not saying no_floppy &c ?
>>
>> "info block" shows the unused default drives. For instance,
>>
>> $ qemu-system-x86_64 -vnc :0 -monitor stdio
>> QEMU 1.1.50 monitor - type 'help' for more information
>> (qemu) info block
>> ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
>> floppy0: removable=1 locked=0 tray-open=0 [not inserted]
>> sd0: removable=1 locked=0 tray-open=0 [not inserted]
>> pflash0: removable=0
>> file=/work/armbru/qemu/bld-x86/pc-bios/bios.bin ro=1 drv=raw
>> encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
>>
>> Drive sd0 is unused here. Might confuse the uninitiated. Moreover, you
>> *can* use it for something entirely else, if=sd notwithstanding:
>>
>> (qemu) device_add lsi
>> (qemu) device_add scsi-cd,drive=sd0
>
> If/when we get a PCI SD card controller model, would all the PCI
> using machines need to be added to take the 'no default sd card'
> setting out again, or does it get overridden anyway if you say
> "and I'd like an sd controller"?
".no_sdcard = 0" makes sense only when the board uses the default IF_SD
drive.
Existence of an PCI SD card device model for the user to -device is not
relevant for the board's QEMUmachine member no_sdcard. QEMUmachine
describes the board, not devices that could be added to it.
Only when we add an SD card to a board should its QEMUmachine no_sdcard
go back to 0.
- [Qemu-devel] [PATCH 02/23] nseries palm spitz: Suppress unused default drives, (continued)
- [Qemu-devel] [PATCH 02/23] nseries palm spitz: Suppress unused default drives, Markus Armbruster, 2012/08/09
- [Qemu-devel] [PATCH 16/23] mips_jazz: Suppress unused default drives, Markus Armbruster, 2012/08/09
- [Qemu-devel] [PATCH 09/23] xilinx-zynq: Suppress unused default drives, Markus Armbruster, 2012/08/09
- [Qemu-devel] [PATCH 18/23] mips_fulong2e, mips_mipssim: Suppress unused default drives, Markus Armbruster, 2012/08/09
- [Qemu-devel] [PATCH 17/23] mips_malta mips_r4k: Suppress unused default drives, Markus Armbruster, 2012/08/09
- [Qemu-devel] [PATCH 23/23] xtensa: Suppress unused default drives, Markus Armbruster, 2012/08/09
- Re: [Qemu-devel] [PATCH 00/23] Suppress unused default drives, Peter Maydell, 2012/08/09