Navigation: Linux Kernel Driver DataBase - web LKDDB: Main index - A index

CONFIG_ARM64_ERRATUM_2224489: Cortex-A710/X2: 2224489: workaround TRBE writing to address out-of-range

General informations

The Linux kernel configuration item CONFIG_ARM64_ERRATUM_2224489 has multiple definitions:

Cortex-A710/X2: 2224489: workaround TRBE writing to address out-of-range found in arch/arm64/Kconfig

The configuration item CONFIG_ARM64_ERRATUM_2224489:

Help text

This option adds the workaround for ARM Cortex-A710/X2 erratum 2224489.

Affected Cortex-A710/X2 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.

Cortex-A710: 2224489: workaround TRBE writing to address out-of-range found in arch/arm64/Kconfig

The configuration item CONFIG_ARM64_ERRATUM_2224489:

Help text

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.

Hardware

LKDDb

Raw data from LKDDb:

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

Automatic links from Google (and ads)

Custom Search

Popular queries:

Navigation: Linux Kernel Driver DataBase - web LKDDB: main index - A index

Automatically generated (in year 2022). See also LKDDb sources on GitLab