On Wed, 25 Jul 2012 23:17:29 +0100, Peter Maydell <peter.maydell at linaro.org> wrote: > On 25 July 2012 22:52, Michael Hope <michael.hope at linaro.org> wrote: > > On 25 July 2012 20:34, Antonios Motakis > > <a.motakis at virtualopensystems.com> wrote: > >> Hm... So if VFPv3 is not enabled in the host, disable VFP in KVM as well? We > >> would have to require at least v3 from the host, otherwise we will have to > >> add extra emulation to lie to the guest about the number of registers to the > >> guest. Which would be a pity. But maybe depending on VFPv3 is not too much > >> to ask for... I'll go ahead and give this a shot then. > > > > Is this needed? The Cortex-A15 and A7 are VFPv4-D32 and, from what I > > can tell, required to have the FPU. > > Architecturally, the Virtualization Extensions aren't dependent on either > VFP or Neon. Make it depend on VFPv3 today, let someone else worry about it if and when they want to fix it. Every other approach has too much bikeshedding! Cheers, Rusty.
