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-rw-r--r--psutil/arch/windows/cpu.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/psutil/arch/windows/cpu.c b/psutil/arch/windows/cpu.c
index 11b50fcf..eec02bbe 100644
--- a/psutil/arch/windows/cpu.c
+++ b/psutil/arch/windows/cpu.c
@@ -420,6 +420,7 @@ error:
/*
* A wrapper around __cpuid syscall. Returns a string in case a
* hypervisor / virtualizer is present, else None.
+ * Reference: https://artemonsecurity.com/vmde.pdf
*/
PyObject *
psutil_cpuid(PyObject *self, PyObject *args) {