CONFIG_ARM_ERRATA_764319 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
ARM errata: Read to DBGPRSR and DBGOSLSR may generate Undefined instruction
configname: CONFIG_ARM_ERRATA_764319
Linux Kernel Configuration
└─>System Type
└─>ARM errata: Read to DBGPRSR and DBGOSLSR may generate Undefined instruction
In linux kernel since version 5.2 (release Date: 2019-07-07)
This option enables the workaround for the 764319 Cortex A-9 erratum.
CP14 read accesses to the DBGPRSR and DBGOSLSR registers generate an
unexpected Undefined Instruction exception when the DBGSWENABLE
external pin is set to 0, even when the CP14 accesses are performed
from a privileged mode. This work around catches the exception in a
way the kernel does not stop execution.
CP14 read accesses to the DBGPRSR and DBGOSLSR registers generate an
unexpected Undefined Instruction exception when the DBGSWENABLE
external pin is set to 0, even when the CP14 accesses are performed
from a privileged mode. This work around catches the exception in a
way the kernel does not stop execution.