[PATCH RFC 1/2] qemu: use "-accel" option to specify accelerator instead of "-machine"

[Daniel P. Berrangé]

On Sun, Jan 10, 2021 at 02:58:05AM +0800, huangy81 at chinatelecom.cn wrote:
> From: Hyman <huangy81 at chinatelecom.cn>
> 
> The "-machine" options for accelerators are legacy, the "-accel" options
> is a better mechanism. The following are the details:
> https://lore.kernel.org/qemu-devel/3aa73987-40e8-3619-0723-9f17f73850bd@redhat.com/
> 
> This patch switch the option "-machine accel=xxx" to "-accel xxx" when
> specifying accelerator type once libvirt build QEMU command line.

This is going to break use of the /usr/bin/qemu-kvm wrapper on
Fedora because QEMU refuses to allow -accel combined with -machine

$ /usr/bin/qemu-kvm -accel tc
qemu-system-x86_64: The -accel and "-machine accel=" options are incompatible


Regards,
Daniel
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