[GIT PULL] x86/cpu changes for v5.5

From: Ingo Molnar
Date: Mon Nov 25 2019 - 08:38:33 EST


Linus,

Please pull the latest x86-cpu-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-cpu-for-linus

# HEAD: db8c33f8b5bea59d00ca12dcd6b65d01b1ea98ef x86/cpu: Align the x86_capability array to size of unsigned long

Misc changes:

- math-emu fixes,

- CPUID updates,

- sanity-check RDRAND output to see whether the CPU at least
pretends to produce random data,

- various unaligned-access across cachelines fixes in preparation of
hardware level split-lock detection,

- Fix MAXSMP constraints to not allow !CPUMASK_OFFSTACK kernels with
larger than 512 NR_CPUS.


Thanks,

Ingo

------------------>
Arnd Bergmann (2):
x86/math-emu: Check __copy_from_user() result
x86/math-emu: Limit MATH_EMULATION to 486SX compatibles

Babu Moger (3):
x86/cpufeatures: Add feature bit RDPRU on AMD
x86/Kconfig: Rename UMIP config parameter
x86/umip: Make the comments vendor-agnostic

Borislav Petkov (1):
x86/rdrand: Sanity-check RDRAND output

Fenghua Yu (2):
x86/cpu: Align cpu_caps_cleared and cpu_caps_set to unsigned long
x86/cpu: Align the x86_capability array to size of unsigned long

Scott Wood (1):
x86/Kconfig: Enforce limit of 512 CPUs with MAXSMP and no CPUMASK_OFFSTACK


arch/x86/Kconfig | 22 +++++++++++-----------
arch/x86/Kconfig.cpu | 25 ++++++++++++++++---------
arch/x86/Makefile_32.cpu | 1 +
arch/x86/include/asm/cpufeatures.h | 1 +
arch/x86/include/asm/disabled-features.h | 2 +-
arch/x86/include/asm/module.h | 2 ++
arch/x86/include/asm/processor.h | 10 +++++++++-
arch/x86/include/asm/umip.h | 4 ++--
arch/x86/kernel/Makefile | 2 +-
arch/x86/kernel/cpu/common.c | 5 +++--
arch/x86/kernel/cpu/rdrand.c | 22 +++++++++++++++++++++-
arch/x86/kernel/umip.c | 12 ++++++------
arch/x86/math-emu/fpu_system.h | 6 ++++--
arch/x86/math-emu/reg_ld_str.c | 6 +++---
tools/arch/x86/include/asm/disabled-features.h | 2 +-
15 files changed, 82 insertions(+), 40 deletions(-)