On 3 October 2012 21:01, Blue Swirl <blauwir...@gmail.com> wrote: > On Mon, Oct 1, 2012 at 4:20 PM, Anthony Liguori <anth...@codemonkey.ws> wrote: >> Jan Kiszka <jan.kis...@siemens.com> writes: >>> + /* The default accelerator depends on the availability of KVM. */ >>> + p = kvm_configured ? "kvm" : "tcg"; >>> }
>> Blue/Aurelien, any objections? > > No, maybe a message could be printed that says that the default has > changed, for a few releases. I've lost track of the conversation, are we currently proposing the accelerator default to be "kvm" (as per the original patch you quote here) or "kvm:tcg" ? I'm not entirely sure which I prefer from an ARM perspective For some time to come and for a lot of targets (ie any target CPU except A15), having a default of "kvm" is going to cause existing working commandlines to stop working. [I expect that ARM-host qemu binaries will be built with CONFIG_KVM once ARM KVM support lands, but the same binary will be run on hosts without virtualization extensions.] On the other hand, perhaps there just aren't really very many people who run QEMU on ARM hosts, and so we can ignore them :-) -- PMM