On Thu, Oct 01, 2015 at 10:00:13AM +0300, Pavel Fedin wrote:
Hello!Can you explain what this setting actually does?Of course. It allows to choose GIC version used by ARM 'virt' machine. By default it's 2, but you can now set it to 3. Actually, initially i proposed another machine type, like 'virt-v3', IMHO this would be more logical because this is kind of different architecture. But Peter Maydell disagreed and insisted on option. So we have an option.
I think Cole wanted to know more like how it can be useful for end users. Since I see GIC as something similar to APIC, I'm guessing the usefulness won't be directly visible, but should help. About what exactly it does or what are the differences between, that I cannot help with, unfortunately.
When would apps like virt-manager want to enable it?When choosing 'virt' machine type for ARM architecture.
Unconditionally? Doesn't that pose a problem, e.g. for requesting version that is not supported or breaking something that expects lower version?
Kind regards, Pavel Fedin Expert Engineer Samsung Electronics Research center Russia
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