CONFIG_ARM64_ERRATUM_2224489 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64
Cortex-A710: 2224489: workaround TRBE writing to address out-of-range
configname: CONFIG_ARM64_ERRATUM_2224489
Linux Kernel Configuration
└─>Kernel Features
└─>ARM errata workarounds via the alternatives framework
└─>Cortex-A710: 2224489: workaround TRBE writing to address out-of-range
In linux kernel since version 4.14.326 (release Date: 2023-09-23)
This option adds the workaround for ARM Cortex-A710 erratum 2224489.
Affected Cortex-A710 cores might write to an out-of-range address, not reserved
for TRBE. Under some conditions, the TRBE might generate a write to the next
virtually addressed page following the last page of the TRBE address space
(i.e., the TRBLIMITR_EL1.LIMIT), instead of wrapping around to the base.
Work around this in the driver by always making sure that there is a
page beyond the TRBLIMITR_EL1.LIMIT, within the space allowed for the TRBE.
If unsure, say Y.
Affected Cortex-A710 cores might write to an out-of-range address, not reserved
for TRBE. Under some conditions, the TRBE might generate a write to the next
virtually addressed page following the last page of the TRBE address space
(i.e., the TRBLIMITR_EL1.LIMIT), instead of wrapping around to the base.
Work around this in the driver by always making sure that there is a
page beyond the TRBLIMITR_EL1.LIMIT, within the space allowed for the TRBE.
If unsure, say Y.
depends
CONFIG_COMPILE_TESTCONFIG_CORESIGHT_TRBE