From: Florian Menne <florianmenne@aol.com>
Date: Sun, 21 Nov 2010 21:11:07 +0000 (+0100)
Subject: Some function to check if a host is running in a virtual environment.
X-Git-Tag: v0.2~14
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4cd8b976810f2ce8076b19d7e9f4351181528a31;p=oddments%2Ffireinfo.git

Some function to check if a host is running in a virtual environment.
---

diff --git a/src/fireinfo.c b/src/fireinfo.c
index c9c5700..1ff0ae0 100644
--- a/src/fireinfo.c
+++ b/src/fireinfo.c
@@ -19,6 +19,7 @@
 
 #include <Python.h>
 
+#include <stdbool.h>
 #include <sys/utsname.h>
 
 /*
@@ -396,6 +397,22 @@ read_hypervisor(struct lscpu_desc *desc)
 	}
 }
 
+static bool
+is_virtualized() {
+	unsigned int eax, ebx, ecx, edx;
+
+	cpuid(0x1, &eax, &ebx, &ecx, &edx);
+
+	/*
+		Bitwise detection of the 31st bit.
+		This indicates if a host runs in a virtual environment.
+	*/
+	if (ecx & (1<<31))
+		return true;
+
+	return false;
+}
+
 static PyObject *
 do_cpuinfo() {
 	/*