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44 lines
1.3 KiB
44 lines
1.3 KiB
menu "CPU errata selection" |
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config RISCV_ERRATA_ALTERNATIVE |
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bool "RISC-V alternative scheme" |
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default y |
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help |
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This Kconfig allows the kernel to automatically patch the |
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errata required by the execution platform at run time. The |
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code patching is performed once in the boot stages. It means |
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that the overhead from this mechanism is just taken once. |
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config ERRATA_SIFIVE |
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bool "SiFive errata" |
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depends on RISCV_ERRATA_ALTERNATIVE |
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help |
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All SiFive errata Kconfig depend on this Kconfig. Disabling |
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this Kconfig will disable all SiFive errata. Please say "Y" |
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here if your platform uses SiFive CPU cores. |
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Otherwise, please say "N" here to avoid unnecessary overhead. |
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config ERRATA_SIFIVE_CIP_453 |
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bool "Apply SiFive errata CIP-453" |
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depends on ERRATA_SIFIVE && 64BIT |
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default y |
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help |
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This will apply the SiFive CIP-453 errata to add sign extension |
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to the $badaddr when exception type is instruction page fault |
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and instruction access fault. |
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If you don't know what to do here, say "Y". |
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config ERRATA_SIFIVE_CIP_1200 |
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bool "Apply SiFive errata CIP-1200" |
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depends on ERRATA_SIFIVE && 64BIT |
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default y |
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help |
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This will apply the SiFive CIP-1200 errata to repalce all |
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"sfence.vma addr" with "sfence.vma" to ensure that the addr |
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has been flushed from TLB. |
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If you don't know what to do here, say "Y". |
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endmenu
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