Re: [Qemu-devel] [PATCH 3/4] qcow2: add a migration blocker

[Stefan Hajnoczi]

On Fri, Nov 11, 2011 at 8:29 PM, Anthony Liguori <address@hidden> wrote:
> +#define QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED \
> +    "{ 'class': 'BlockFormatFeatureNotSupported', 'data': { 'format': %s, 
> 'name': %s, 'feature': %s } }"
> +

Isn't having a separate error going to make life harder for management
tool writers?  I would have expected one "migration not supported"
error, regardless of whether the reason is ivshmem, qcow2, or anything
else.

Stefan