In addition to read/modify/write the setup header of the struct
boot_params as that of 16-bit boot protocol, the boot loader should
also fill the additional fields of the struct boot_params as
-described in chapter :doc:`zero-page`.
+described in chapter Documentation/x86/zero-page.rst.
After setting up the struct boot_params, the boot loader can load the
32/64-bit kernel in the same way as that of 16-bit boot protocol.
In addition to read/modify/write the setup header of the struct
boot_params as that of 16-bit boot protocol, the boot loader should
also fill the additional fields of the struct boot_params as described
-in chapter :doc:`zero-page`.
+in chapter Documentation/x86/zero-page.rst.
After setting up the struct boot_params, the boot loader can load
64-bit kernel in the same way as that of 16-bit boot protocol, but
firmware code though and the OS does not make any specific MTRR mapping
requests mtrr_type_lookup() should always return MTRR_TYPE_INVALID.
-For details refer to :doc:`pat`.
+For details refer to Documentation/x86/pat.rst.
.. tip::
On Intel P6 family processors (Pentium Pro, Pentium II and later)