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-rw-r--r--Documentation/virt/kvm/api.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index c0ddd3035462..3249fb56cc69 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -2259,6 +2259,8 @@ Errors:
EINVAL invalid register ID, or no such register or used with VMs in
protected virtualization mode on s390
EPERM (arm64) register access not allowed before vcpu finalization
+ EBUSY (riscv) changing register value not allowed after the vcpu
+ has run at least once
====== ============================================================
(These error codes are indicative only: do not rely on a specific error