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linux/arch/arm64
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Will Deacon 21aadb063e arm64: cpufeature: Fix CTR_EL0 field definitions 
commit be68a8aaf9 upstream.

Our field definitions for CTR_EL0 suffer from a number of problems:

  - The IDC and DIC fields are missing, which causes us to enable CTR
    trapping on CPUs with either of these returning non-zero values.

  - The ERG is FTR_LOWER_SAFE, whereas it should be treated like CWG as
    FTR_HIGHER_SAFE so that applications can use it to avoid false sharing.

  - [nit] A RES1 field is described as "RAO"

This patch updates the CTR_EL0 field definitions to fix these issues.

Cc: <stable@vger.kernel.org>
Cc: Shanker Donthineni <shankerd@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2018-02-28 10:19:42 +01:00
..
boot arm64: dts: add #cooling-cells to CPU nodes 2018-02-25 11:07:51 +01:00
configs ARM/arm64: SoC platform updates for v4.14 2017-09-10 20:35:46 -07:00
crypto crypto: hash - annotate algorithms taking optional key 2018-02-16 20:23:00 +01:00
include kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK 2018-02-22 15:42:23 +01:00
kernel arm64: cpufeature: Fix CTR_EL0 field definitions 2018-02-28 10:19:42 +01:00
kvm arm64: Add missing Falkor part number for branch predictor hardening 2018-02-22 15:42:25 +01:00
lib arm64: uaccess: Mask __user pointers for __arch_{clear, copy_*}_user 2018-02-16 20:22:52 +01:00
mm arm64: mm: don't write garbage into TTBR1_EL1 register 2018-02-28 10:19:38 +01:00
net bpf, arm64: fix stack_depth tracking in combination with tail calls 2018-01-31 14:03:50 +01:00
xen arm64: kpti: Fix the interaction between ASID switching and software PAN 2018-02-16 20:22:49 +01:00
Kconfig arm64: Add skeleton to harden the branch predictor against aliasing attacks 2018-02-16 20:22:53 +01:00
Kconfig.debug arm64: relocation testing module 2017-04-04 17:03:32 +01:00
Kconfig.platforms ARM: arm64: Devicetree updates for v4.14 2017-09-10 20:54:48 -07:00
Makefile arm64: prevent regressions in compressed kernel image size when upgrading to binutils 2.27 2017-12-20 10:10:29 +01:00