sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

OvmfPkg/ResetVector: Depend on PCD values of the page tables.

Browse Source 
Currently, the value of the page tables' address is hard-coded in the
ResetVector. This patch replaces these values with a PCD dependency.

A check for the size has been added to alert the developer to rewrite
the ASM according to the new size, if it has been changed.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Marvin Häuser
2016-11-04 13:32:39 +00:00
committed by Laszlo Ersek
parent fdaf78424d
commit 73d66c5871
3 changed files with 24 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
OvmfPkg/ResetVector/ResetVector.nasmb
View File

@@ -53,6 +53,13 @@
%include "Ia32/SearchForSecEntry.asm"
%ifdef ARCH_X64
#include <AutoGen.h>
%if (FixedPcdGet32 (PcdOvmfSecPageTablesSize) != 0x6000)
%error "This implementation inherently depends on PcdOvmfSecPageTablesSize"
%endif
%define PT_ADDR(Offset) (FixedPcdGet32 (PcdOvmfSecPageTablesBase) + (Offset))
%include "Ia32/Flat32ToFlat64.asm"
%include "Ia32/PageTables64.asm"
%endif