[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/Documentation/x86/index.rst b/src/kernel/linux/v4.19/Documentation/x86/index.rst
new file mode 100644
index 0000000..0780d55
--- /dev/null
+++ b/src/kernel/linux/v4.19/Documentation/x86/index.rst
@@ -0,0 +1,9 @@
+==========================
+x86 architecture specifics
+==========================
+
+.. toctree::
+   :maxdepth: 1
+
+   mds
+   tsx_async_abort