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-rw-r--r--arch/riscv/Kconfig.errata11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig.errata b/arch/riscv/Kconfig.errata
index 2acc7d876e1f..e318119d570d 100644
--- a/arch/riscv/Kconfig.errata
+++ b/arch/riscv/Kconfig.errata
@@ -119,4 +119,15 @@ config ERRATA_THEAD_PMU
If you don't know what to do here, say "Y".
+config ERRATA_THEAD_GHOSTWRITE
+ bool "Apply T-Head Ghostwrite errata"
+ depends on ERRATA_THEAD && RISCV_ISA_XTHEADVECTOR
+ default y
+ help
+ The T-Head C9xx cores have a vulnerability in the xtheadvector
+ instruction set. When this errata is enabled, the CPUs will be probed
+ to determine if they are vulnerable and disable xtheadvector.
+
+ If you don't know what to do here, say "Y".
+
endmenu # "CPU errata selection"