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MdeModulePkg PCD: Add DynamicEx PcdVpdBaseAddress64 for non SPI platform

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https://bugzilla.tianocore.org/show_bug.cgi?id=1356
Current PcdVpdBaseAddress is 32bit static Pcd. NON SPI platform needs to
configure it as Dynamic PCD. Emulator platform (such as NT32) may set its
value to 64bit address.
To meet with this usage, 64bit DynamicEx PcdVpdBaseAddress64 is introduced.
If its value is not zero, it will be used.
If its value is zero, static PcdVpdBaseAddress will be used.
When NON SPI platform enables VPD PCD, they need to set PcdVpdBaseAddress64.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
This commit is contained in:
Liming Gao
2018-11-22 22:10:29 +08:00
parent 277a3958d9
commit 534efca06f
8 changed files with 54 additions and 4 deletions
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2
MdeModulePkg/Universal/PCD/Dxe/Service.h
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@@ -48,6 +48,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#error "Please make sure the version of PCD DXE Service and the generated PCD DXE Database match."
#endif
extern UINTN mVpdBaseAddress;
/**
Retrieve additional information associated with a PCD token in the default token space.