Implement barrier_nospec for NXP PowerPC Book3E processors.
Diana Craciun (6):
Disable the speculation barrier from the command line
Document nospectre_v1 kernel parameter.
Make stf barrier PPC_BOOK3S_64 specific.
Enable cpu vulnerabilities reporting for NXP PPC BOOK3E
Add barrier_nospec implementation for NXP PowerPC Book3E
powerpc/fsl: Sanitize the syscall table for NXP PowerPC 32 bit
platforms
Documentation/admin-guide/kernel-parameters.txt | 4 +++
arch/powerpc/Kconfig | 7 ++++-
arch/powerpc/include/asm/barrier.h | 12 ++++++---
arch/powerpc/include/asm/setup.h | 6 ++++-
arch/powerpc/kernel/Makefile | 3 ++-
arch/powerpc/kernel/entry_32.S | 10 +++++++
arch/powerpc/kernel/module.c | 4 ++-
arch/powerpc/kernel/security.c | 17 +++++++++++-
arch/powerpc/kernel/setup-common.c | 2 ++
arch/powerpc/kernel/vmlinux.lds.S | 4 ++-
arch/powerpc/lib/feature-fixups.c | 35 ++++++++++++++++++++++++-
arch/powerpc/platforms/powernv/setup.c | 1 -
arch/powerpc/platforms/pseries/setup.c | 1 -
13 files changed, 94 insertions(+), 12 deletions(-)
--
History:
v2 --> v3
- addressed review comments
- included the 32bit sanitization in the same patch series
v1 --> v2
- added implementation for cpu_show_spectre_x functions
- the mitigation is no longer enabled through device tree options
2.5.5
