mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-25 13:14:07 +08:00
c80ee64a80
The alternative mechanism needs runtime code patching, it can't work
on XIP_KERNEL. And the errata workarounds are implemented via the
alternative mechanism. So add !XIP_KERNEL dependency for alternative
and erratas.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Fixes: 44c9225729 ("RISC-V: enable XIP")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
46 lines
1.3 KiB
Plaintext
46 lines
1.3 KiB
Plaintext
menu "CPU errata selection"
|
|
|
|
config RISCV_ERRATA_ALTERNATIVE
|
|
bool "RISC-V alternative scheme"
|
|
depends on !XIP_KERNEL
|
|
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
|