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Re: [Qemu-devel] [PATCH] vl.c: disallow command line fw cfg without opt/


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] vl.c: disallow command line fw cfg without opt/
Date: Tue, 15 Mar 2016 15:14:21 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0


On 15/03/2016 14:55, Michael S. Tsirkin wrote:
> Allowing arbitary file names on command line is setting us up for
> failure: future guests will look for a specific QEMU-specified name and
> will get confused finding a user file there.
> 
> Signed-off-by: Michael S. Tsirkin <address@hidden>

Too bad for the user.

I think we have already gone through this discussion.

Paolo

> ---
>  vl.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/vl.c b/vl.c
> index 7a28982..5654af6 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -2321,6 +2321,7 @@ static int parse_fw_cfg(void *opaque, QemuOpts *opts, 
> Error **errp)
>      if (strncmp(name, "opt/", 4) != 0) {
> -        error_report("warning: externally provided fw_cfg item names "
> -                     "should be prefixed with \"opt/\"");
> +        error_report("externally provided fw_cfg item names "
> +                     "must be prefixed with \"opt/\"");
> +        return -1;
>      }
>      if (nonempty_str(str)) {
>          size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
> 



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