Re: [RFC PATCH 00/16] KVM: arm64: Initial support for SVE guests

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On Fri, Jul 06, 2018 at 09:22:47AM +0100, Alex Bennée wrote:
> 
> Dave Martin <Dave.Martin@xxxxxxx> writes:
> 
> <snip>
> >
> > This series is somewhat tested on Arm Juno r0 and the Arm Fast Model
> > (with/without SVE support).  arch/arm builds, but I've not booted
> > it -- only some trivial refactoring in this series affects arch/arm.
> 
> Now that QEMU linux-user SVE support is pretty much complete we've also
> got preliminary patches for system emulation mode. However we currently
> don't have VHE implemented so I guess we need to do that first before we
> can test under QEMU.

Qemu can use this as a KVM client without invasive changes, right?

For kvmtool, it's just a question of checking/setting a feature flag
in KVM_ARM_PREFERRED_TARGET and KVM_ARM_VCPU_INIT, and (eventually)
doing at ioctl() to set the set of permitted vector lengths (not yet,
this will come in a follow-up series).

Cheers
---Dave
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