Aaron Durbin 696c642afa cpu/x86: add limited runtime identity page mapping ... When employing PAGING_IN_CACHE_AS_RAM more areas need to be mapped in at runtime. Therefore, paging_identity_map_addr() is added to support adding identity mappings. Because there are a fixed amount of pages in cache-as-ram paging only the existing paging structures can be used. As such that's a limitation on what regions and length one can map. Using util/x86/x86_page_tables.go to generate page tables will always populate all the page directory pages. Therefore, 2MiB mappings are easy to map in. BUG=b:72728953 Change-Id: Ibe33aa12972ff678d2e9b80874529380b4ce9fd7 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25718 Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>		2018-04-26 06:55:59 +00:00
..
Makefile.inc	cpu/x86: add pae paging module to all stages	2018-04-23 09:17:34 +00:00
pgtbl.c	cpu/x86: add limited runtime identity page mapping	2018-04-26 06:55:59 +00:00