[PATCH v2 12/28] ARM: KVM: Add VFP save/restore

On Thu, Feb 04, 2016 at 11:00:29AM +0000, Marc Zyngier wrote:

This is almost a copy/paste of the existing version, with a couple
of subtle differences:
- Only write to FPEXC once on the save path
- Add an isb when enabling VFP access

The patch also defines a few sysreg accessors and a __vfp_enabled
predicate that test the VFP trapping state.

Signed-off-by: Marc Zyngier <redacted>

Reviewed-by: Christoffer Dall <redacted>