[PATCHv3 00/19] arm64: invoke syscalls with pt_regs

On Tue, Jun 19, 2018 at 04:38:10PM +0100, Mark Rutland wrote:

From b47791fe74fce8bb48696ab0cdda48a9bae0e397 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Tue, 19 Jun 2018 12:49:54 +0100
Subject: [PATCH] arm64: don't restore GPRs when context tracking

Now that syscalls are invoked with pt_regs, we no longer need to ensure
that the argument regsiters are live in the entry assembly, and it's
fine to not restore them after context_tracking_user_exit() has
corrupted them.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <redacted>

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