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menu "CPU errata selection"
config RISCV_ERRATA_ALTERNATIVE
bool "RISC-V alternative scheme"
default y
help
This Kconfig allows the kernel to automatically patch the
errata required by the execution platform at run time. The
code patching is performed once in the boot stages. It means
that the overhead from this mechanism is just taken once.
config ERRATA_SIFIVE
bool "SiFive errata"
depends on RISCV_ERRATA_ALTERNATIVE
help
All SiFive errata Kconfig depend on this Kconfig. Disabling
this Kconfig will disable all SiFive errata. Please say "Y"
here if your platform uses SiFive CPU cores.
Otherwise, please say "N" here to avoid unnecessary overhead.
config ERRATA_SIFIVE_CIP_453
bool "Apply SiFive errata CIP-453"
depends on ERRATA_SIFIVE
default y
help
This will apply the SiFive CIP-453 errata to add sign extension
to the $badaddr when exception type is instruction page fault
and instruction access fault.
If you don't know what to do here, say "Y".
config ERRATA_SIFIVE_CIP_1200
bool "Apply SiFive errata CIP-1200"
depends on ERRATA_SIFIVE
default y
help
This will apply the SiFive CIP-1200 errata to repalce all
"sfence.vma addr" with "sfence.vma" to ensure that the addr
has been flushed from TLB.
If you don't know what to do here, say "Y".
endmenu
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