First Commit

externals/cryptopp/TestPrograms/test_x86_via_aes.cpp

@@ -0,0 +1,39 @@
+// TODO: cut-in xcrypt-ecb
+#include <cstdlib>
+int main(int argc, char* argv[])
+{
+    unsigned int msr=0;
+    unsigned int divisor=2;
+    unsigned int buffer;
+
+    __asm__ __volatile__
+    (
+#if defined(__x86_64__) || defined(__amd64__)
+        "mov  %1, %%rdi          ;\n"
+        "movl %2, %%edx          ;\n"
+#else
+        "mov  %1, %%edi          ;\n"
+        "movl %2, %%edx          ;\n"
+#endif
+
+        // xstore-rng
+        ".byte 0x0f, 0xa7, 0xc0  ;\n"
+
+#if defined(__x86_64__) || defined(__amd64__)
+        "andq %%rax, 0x1f        ;\n"
+        "movl %%eax, %0          ;\n"
+#else
+        "andl  %%eax, 0x1f       ;\n"
+        "movl  %%eax, %0         ;\n"
+#endif
+
+        : "=g" (msr) : "g" (buffer), "g" (divisor)
+#if defined(__x86_64__) || defined(__amd64__)
+        : "rax", "rdx", "rdi", "cc"
+#else
+        : "eax", "edx", "edi", "cc"
+#endif
+    );
+
+    return 0;
+}