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Re: [Qemu-trivial] [Qemu-devel] [PATCH] vl: disable default cdrom when u


From: Markus Armbruster
Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH] vl: disable default cdrom when using explicitely scsi-hd
Date: Mon, 09 Jan 2017 13:49:44 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)

Hervé Poussineau <address@hidden> writes:

> 'ide-hd', 'ide-cd' and 'scsi-cd' devices already disable default cdrom.
> Make it the same for 'scsi-hd'.
>
> That way, we can add/replace the device on lun=2 without using -nodefaults.

Yes, but it might upset existing usage that relies on the default
CD-ROM.  In my opinion, making your needs explicit is better than
relying on defaults, but that doesn't mean we can change the defaults
unthinkingly.  Definitely not qemu-trivial.

Opinions on the change?

> Signed-off-by: Hervé Poussineau <address@hidden>
> ---
>  vl.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/vl.c b/vl.c
> index d77dd86..da97fe2 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -223,6 +223,7 @@ static struct {
>      { .driver = "ide-hd",               .flag = &default_cdrom     },
>      { .driver = "ide-drive",            .flag = &default_cdrom     },
>      { .driver = "scsi-cd",              .flag = &default_cdrom     },
> +    { .driver = "scsi-hd",              .flag = &default_cdrom     },
>      { .driver = "virtio-serial-pci",    .flag = &default_virtcon   },
>      { .driver = "virtio-serial",        .flag = &default_virtcon   },
>      { .driver = "VGA",                  .flag = &default_vga       },



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