Will Deacon 905e8c5dca arm64: errata: add workaround for cortex-a53 erratum #845719 ...

When running a compat (AArch32) userspace on Cortex-A53, a load at EL0
from a virtual address that matches the bottom 32 bits of the virtual
address used by a recent load at (AArch64) EL1 might return incorrect
data.

This patch works around the issue by writing to the contextidr_el1
register on the exception return path when returning to a 32-bit task.
This workaround is patched in at runtime based on the MIDR value of the
processor.

Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

2015-04-01 10:24:31 +01:00

..

boot

dtb: change binding name to match with newer firmware DT

2015-03-04 15:54:14 -05:00

configs

arm64: defconfig: updates for 4.1

2015-03-30 11:29:35 +01:00

crypto

arm64/crypto: issue aese/aesmc instructions in pairs

2015-03-19 10:43:57 +00:00

include

arm64: errata: add workaround for cortex-a53 erratum #845719

2015-04-01 10:24:31 +01:00

kernel

arm64: errata: add workaround for cortex-a53 erratum #845719

2015-04-01 10:24:31 +01:00

kvm

arm64: KVM: use ID map with increased VA range if required

2015-03-23 11:35:29 +00:00

lib

arm64: __clear_user: handle exceptions on strb

2014-11-13 15:21:26 +00:00

mm

arm64: mm: increase VA range of identity map

2015-03-23 11:35:29 +00:00

net

arm64: bpf: lift restriction on last instruction

2014-12-03 18:04:09 +00:00

xen

arm: xen: implement multicall hypercall support.

2014-04-24 13:09:46 +01:00

Kconfig

arm64: errata: add workaround for cortex-a53 erratum #845719

2015-04-01 10:24:31 +01:00

Kconfig.debug

arm64: add better page protections to arm64

2015-01-22 14:54:29 +00:00

Makefile

arm64: Adjust EFI libstub object include logic

2015-03-17 16:59:47 +00:00