| 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 && 64BIT |
| 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 && 64BIT |
| 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 |
