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[4.14,00/24] V4.14 backport of 32-bit arm spectre patches

Message ID 1539617538-22328-1-git-send-email-dave.long@linaro.org
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Series V4.14 backport of 32-bit arm spectre patches | expand

Message

David Long Oct. 15, 2018, 3:31 p.m. UTC 
From: "David A. Long" <dave.long@linaro.org>


V4.14 backport of spectre patches from Russell M. King's spectre branch.
Patches not yet in upstream are excluded.

Marc Zyngier (2):
  ARM: KVM: invalidate BTB on guest exit for Cortex-A12/A17
  ARM: KVM: invalidate icache on guest exit for Cortex-A15

Russell King (22):
  ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs
  ARM: bugs: prepare processor bug infrastructure
  ARM: bugs: hook processor bug checking into SMP and suspend paths
  ARM: bugs: add support for per-processor bug checking
  ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre
  ARM: spectre-v2: harden branch predictor on context switches
  ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit
  ARM: spectre-v2: harden user aborts in kernel space
  ARM: spectre-v2: add firmware based hardening
  ARM: spectre-v2: warn about incorrect context switching functions
  ARM: spectre-v2: KVM: invalidate icache on guest exit for Brahma B15
  ARM: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling
  ARM: KVM: report support for SMCCC_ARCH_WORKAROUND_1
  ARM: spectre-v1: add speculation barrier (csdb) macros
  ARM: spectre-v1: add array_index_mask_nospec() implementation
  ARM: spectre-v1: fix syscall entry
  ARM: signal: copy registers using __copy_from_user()
  ARM: vfp: use __copy_from_user() when restoring VFP state
  ARM: oabi-compat: copy semops using __copy_from_user()
  ARM: use __inttype() in get_user()
  ARM: spectre-v1: use get_user() for __get_user()
  ARM: spectre-v1: mitigate user accesses

 arch/arm/include/asm/assembler.h   |  12 +++
 arch/arm/include/asm/barrier.h     |  32 +++++++
 arch/arm/include/asm/bugs.h        |   6 +-
 arch/arm/include/asm/cp15.h        |   3 +
 arch/arm/include/asm/cputype.h     |   8 ++
 arch/arm/include/asm/kvm_asm.h     |   2 -
 arch/arm/include/asm/kvm_host.h    |  14 ++-
 arch/arm/include/asm/kvm_mmu.h     |  23 ++++-
 arch/arm/include/asm/proc-fns.h    |   4 +
 arch/arm/include/asm/system_misc.h |  15 ++++
 arch/arm/include/asm/thread_info.h |   4 +-
 arch/arm/include/asm/uaccess.h     |  26 ++++--
 arch/arm/kernel/Makefile           |   1 +
 arch/arm/kernel/bugs.c             |  18 ++++
 arch/arm/kernel/entry-common.S     |  18 ++--
 arch/arm/kernel/entry-header.S     |  25 ++++++
 arch/arm/kernel/signal.c           |  58 ++++++-------
 arch/arm/kernel/smp.c              |   4 +
 arch/arm/kernel/suspend.c          |   2 +
 arch/arm/kernel/sys_oabi-compat.c  |   8 +-
 arch/arm/kvm/hyp/hyp-entry.S       | 112 +++++++++++++++++++++++-
 arch/arm/lib/copy_from_user.S      |   9 ++
 arch/arm/mm/Kconfig                |  23 +++++
 arch/arm/mm/Makefile               |   2 +-
 arch/arm/mm/fault.c                |   3 +
 arch/arm/mm/proc-macros.S          |   3 +-
 arch/arm/mm/proc-v7-2level.S       |   6 --
 arch/arm/mm/proc-v7-bugs.c         | 174 +++++++++++++++++++++++++++++++++++++
 arch/arm/mm/proc-v7.S              | 154 +++++++++++++++++++++++++-------
 arch/arm/vfp/vfpmodule.c           |  17 ++--
 30 files changed, 674 insertions(+), 112 deletions(-)
 create mode 100644 arch/arm/kernel/bugs.c
 create mode 100644 arch/arm/mm/proc-v7-bugs.c

-- 
2.5.0

Comments

Greg Kroah-Hartman Oct. 16, 2018, 4:10 p.m. UTC | #1 
On Mon, Oct 15, 2018 at 11:31:54AM -0400, David Long wrote:
> From: "David A. Long" <dave.long@linaro.org>

> 

> V4.14 backport of spectre patches from Russell M. King's spectre branch.

> Patches not yet in upstream are excluded.


Very nice, thanks for all of these, now queued up.

greg k-h