diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2015-06-12 11:24:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-03 09:29:51 -0700 |
| commit | 8401bf59751d62bdf110cf095eac0f92cd22a6f8 (patch) | |
| tree | e83595eed8e1f6faa181471878e5a2fcf029101d /arch/Kconfig | |
| parent | ab3252616dead8fb62a19b576eabdec137196e6d (diff) | |
arm64: Do not attempt to use init_mm in reset_context()
commit 565630d503ef24e44c252bed55571b3a0d68455f upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/Kconfig')
0 files changed, 0 insertions, 0 deletions