[PATCH v5 04/23] arm64: KVM: Dynamically patch the kernel/hyp VA mask

[Catalin Marinas]

On Thu, Mar 01, 2018 at 03:55:19PM +0000, Marc Zyngier wrote:
> So far, we're using a complicated sequence of alternatives to
> patch the kernel/hyp VA mask on non-VHE, and NOP out the
> masking altogether when on VHE.
> 
> The newly introduced dynamic patching gives us the opportunity
> to simplify that code by patching a single instruction with
> the correct mask (instead of the mind bending cummulative masking
> we have at the moment) or even a single NOP on VHE. This also
> adds some initial code that will allow the patching callback
> to switch to a more complex patching.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>

Acked-by: Catalin Marinas <catalin.marinas at arm.com>