KVM: add comments for kvm_debug_exit_arch struct

[firefly-linux-kernel-4.4.55.git] / Documentation / virtual / kvm / api.txt

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index a7926a90156f64172897ca5a9ae562f7975701a7..9f746eab333d4bb9bb2c6bf6eefb42e01586b028 100644 (file)
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -3111,11 +3111,13 @@ data_offset describes where the data is located (KVM_EXIT_IO_OUT) or
 where kvm expects application code to place the data for the next
 KVM_RUN invocation (KVM_EXIT_IO_IN).  Data format is a packed array.
 
+               /* KVM_EXIT_DEBUG */
                struct {
                        struct kvm_debug_exit_arch arch;
                } debug;
 
-Unused.
+If the exit_reason is KVM_EXIT_DEBUG, then a vcpu is processing a debug event
+for which architecture specific information is returned.
 
                /* KVM_EXIT_MMIO */
                struct {