arm64: trap userspace "dc cvau" cache operation on errata-affected core

[cascardo/linux.git] / arch / arm64 / kernel / cpu_errata.c

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index c2261a7..af647d2 100644 (file)
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -46,6 +46,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
                .desc = "ARM errata 826319, 827319, 824069",
                .capability = ARM64_WORKAROUND_CLEAN_CACHE,
                MIDR_RANGE(MIDR_CORTEX_A53, 0x00, 0x02),
+               .enable = cpu_enable_cache_maint_trap,
        },
 #endif
 #ifdef CONFIG_ARM64_ERRATUM_819472
@@ -54,6 +55,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
                .desc = "ARM errata 819472",
                .capability = ARM64_WORKAROUND_CLEAN_CACHE,
                MIDR_RANGE(MIDR_CORTEX_A53, 0x00, 0x01),
+               .enable = cpu_enable_cache_maint_trap,
        },
 #endif
 #ifdef CONFIG_ARM64_ERRATUM_832075