Re: [PATCH] arm64: KVM: Save two instructions in __guest_enter()

From: Christoffer Dall
Date: Mon Aug 29 2016 - 14:12:58 EST


On Mon, Aug 29, 2016 at 10:22:06AM -0500, Shanker Donthineni wrote:
> Hi Christoffer,
>
> This is change may not provide the measurable performance
> improvement, but still we can
> save a few cpu cycles on vCPU context switch and also improves the
> code readability.

I'm not so convinced about saving CPU cycles, but now when I've reviewed
your patch I think it has potential to slightly improve the code. See
my review of your patch.

-Christoffer