tree fbd1c12f5bf48144cfc29c7c7d59aecae42c67b2
parent 8a14849b4a355278f0b7baf6e2da7dc7144a23e8
author Catalin Marinas <catalin.marinas@arm.com> 1434104681 +0100
committer Catalin Marinas <catalin.marinas@arm.com> 1434119778 +0100

arm64: Do not attempt to use init_mm in reset_context()

After secondary CPU boot or hotplug, the active_mm of the idle thread is
&init_mm. The init_mm.pgd (swapper_pg_dir) is only meant for TTBR1_EL1
and must not be set in TTBR0_EL1. Since when active_mm == &init_mm the
TTBR0_EL1 is already set to the reserved value, there is no need to
perform any context reset.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org>