Slow Randomizing Boosts DoS v4.4.219 backport 0

From: mark gross <[email protected]>
Subject: [PATCH 0/5] Slow Ranomizing Boosts DoS linux-4.4.y backport

This is a backport of the backports done by Thomas for linux-4.14.y to linux-4.4.y.

The backport needed a backport of one additional dependency for cpu_data-x86_mask getting renamed to x86_stepping.

This was tested by the test engineer who tested the other SRBDS implementations and it seems to work.

Jia Zhang (1):
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping

Mark Gross (4):
x86/cpu: Add a steppings field to struct x86_cpu_id x86/cpu: Add 'table' argument to cpu_matches() x86/speculation: Add Special Register Buffer Data Sampling (SRBDS)
mitigation
x86/speculation: Add SRBDS vulnerability and mitigation documentation

 .../ABI/testing/sysfs-devices-system-cpu      |   1 +
 .../special-register-buffer-data-sampling.rst | 148 ++++++++++++++++++
 Documentation/kernel-parameters.txt           |  20 +++
 arch/x86/include/asm/acpi.h                   |   2 +-
 arch/x86/include/asm/cpu_device_id.h          |  27 ++++
 arch/x86/include/asm/cpufeatures.h            |   2 +
 arch/x86/include/asm/msr-index.h              |   4 +
 arch/x86/include/asm/processor.h              |   2 +-
 arch/x86/kernel/amd_nb.c                      |   2 +-
 arch/x86/kernel/asm-offsets_32.c              |   2 +-
 arch/x86/kernel/cpu/amd.c                     |  26 +--
 arch/x86/kernel/cpu/bugs.c                    | 106 +++++++++++++
 arch/x86/kernel/cpu/centaur.c                 |   4 +-
 arch/x86/kernel/cpu/common.c                  |  62 ++++++--
 arch/x86/kernel/cpu/cpu.h                     |   1 +
 arch/x86/kernel/cpu/cyrix.c                   |   2 +-
 arch/x86/kernel/cpu/intel.c                   |  20 +--
 arch/x86/kernel/cpu/match.c                   |   7 +-
 arch/x86/kernel/cpu/microcode/intel.c         |   4 +-
 arch/x86/kernel/cpu/mtrr/generic.c            |   2 +-
 arch/x86/kernel/cpu/mtrr/main.c               |   4 +-
 arch/x86/kernel/cpu/perf_event_intel.c        |   2 +-
 arch/x86/kernel/cpu/perf_event_intel_lbr.c    |   2 +-
 arch/x86/kernel/cpu/perf_event_p6.c           |   2 +-
 arch/x86/kernel/cpu/proc.c                    |   4 +-
 arch/x86/kernel/head_32.S                     |   4 +-
 arch/x86/kernel/mpparse.c                     |   2 +-
 drivers/base/cpu.c                            |   8 +
 drivers/char/hw_random/via-rng.c              |   2 +-
 drivers/cpufreq/acpi-cpufreq.c                |   2 +-
 drivers/cpufreq/longhaul.c                    |   6 +-
 drivers/cpufreq/p4-clockmod.c                 |   2 +-
 drivers/cpufreq/powernow-k7.c                 |   2 +-
 drivers/cpufreq/speedstep-centrino.c          |   4 +-
 drivers/cpufreq/speedstep-lib.c               |   6 +-
 drivers/crypto/padlock-aes.c                  |   2 +-
 drivers/edac/amd64_edac.c                     |   2 +-
 drivers/edac/mce_amd.c                        |   2 +-
 drivers/hwmon/coretemp.c                      |   6 +-
 drivers/hwmon/hwmon-vid.c                     |   2 +-
 drivers/hwmon/k10temp.c                       |   2 +-
 drivers/hwmon/k8temp.c                        |   2 +-
 drivers/video/fbdev/geode/video_gx.c          |   2 +-
 include/linux/mod_devicetable.h               |   6 +
 44 files changed, 442 insertions(+), 80 deletions(-)
 create mode 100644 Documentation/hw-vuln/special-register-buffer-data-sampling.rst

2.17.1