vl: Clean up parsing of -boot option argument
Commit 3d3b8303 threw in some QemuOpts parsing without replacing the existing ad hoc parser, resulting in a confusing mess. Clean it up. Two user-visible changes: 1. Invalid options are reported more nicely. Before: qemu: unknown boot parameter 'x' in 'x=y' After: qemu-system-x86_64: -boot x=y: Invalid parameter 'x' 2. If -boot is given multiple times, options accumulate, just like for -machine. Before, only options order, once and menu accumulated. For the other ones, all but the first -boot in non-legacy syntax got simply ignored. Signed-off-by: NMarkus Armbruster <armbru@redhat.com> Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Message-id: 1371208516-7857-2-git-send-email-armbru@redhat.com Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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