From: Fuad Tabba <tabba@xxxxxxxxxx>
Return an error (-EINVAL) if trying to enable MTE on a protected
vm.
Signed-off-by: Fuad Tabba <tabba@xxxxxxxxxx>
---
arch/arm64/kvm/arm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 10e036bf06e3..8a1b4ba1dfa7 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -90,7 +90,9 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
break;
case KVM_CAP_ARM_MTE:
mutex_lock(&kvm->lock);
- if (!system_supports_mte() || kvm->created_vcpus) {
+ if (!system_supports_mte() ||
+ kvm_vm_is_protected(kvm) ||
+ kvm->created_vcpus) {
r = -EINVAL;
} else {
r = 0;
--
2.36.1.124.g0e6072fb45-goog
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