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-rw-r--r--Documentation/virtual/kvm/api.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index a7cb93cb215..eb62761b768 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1810,6 +1810,14 @@ Valid flags are:
#define KVM_PIT_SPEAKER_DUMMY 1 /* emulate speaker port stub */
+PIT timer interrupts may use a per-VM kernel thread for injection. If it
+exists, this thread will have a name of the following pattern:
+
+kvm-pit/<owner-process-pid>
+
+When running a guest with elevated priorities, the scheduling parameters of
+this thread may have to be adjusted accordingly.
+
This IOCTL replaces the obsolete KVM_CREATE_PIT.