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-rw-r--r--arch/arm64/kvm/arm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 349d380e9ff0..e016b0f4d2eb 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1642,6 +1642,10 @@ int kvm_arch_init(void *opaque)
return -ENODEV;
}
+ if (cpus_have_final_cap(ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE))
+ kvm_info("Guests without required CPU erratum workarounds can deadlock system!\n" \
+ "Only trusted guests should be used on this system.\n");
+
for_each_online_cpu(cpu) {
smp_call_function_single(cpu, check_kvm_target_cpu, &ret, 1);
if (ret < 0) {