Add a macro USE_5_LEVEL_PAGE_TABLE to determine whether to create
5 level page table.
If macro USE_5_LEVEL_PAGE_TABLE is defined, PML5Table is created
at (4G-12K), while PML4Table is at (4G-16K). In runtime check, if
5level paging is supported, use PML5Table, otherwise, use PML4Table.
If macro USE_5_LEVEL_PAGE_TABLE is not defined, to save space, 5level
paging is not created, and 4level paging is at (4G-12K) and be used.
Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Debkumar De <debkumar.de@intel.com>
Cc: Catharine West <catharine.west@intel.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
Currently, page table creation has many hard-code values about the
offset to the start of page table. To simplify it, add Labels such
as Pml4, Pdp and Pd, so that we can remove many hard-code values
Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: Debkumar De <debkumar.de@intel.com>
Cc: Catharine West <catharine.west@intel.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
Previously, we would build the page tables in
Tools/FixupForRawSection.py.
In order to let NASM build VTF0 from source during the EDK II build
process, we need to move this into the VTF0 NASM code.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15822 6f19259b-4bc3-4df7-8a09-765794883524
Now, Transition32FlatTo64Flat calls SetCr3ForPageTables64
which is located in Ia32/PageTables64.asm.
This change is required so OVMF can replace the code in
Ia32/PageTables64.asm with code that generates page tables in
RAM.
Note: Since this change does not impact the functionality of the
current VTF0 binaries, they are not being updated. The resulting
new binaries were tested to verify there is no regression.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14714 6f19259b-4bc3-4df7-8a09-765794883524
Zhiguang Liu
Michael D Kinney
Jordan Justen