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| author | Jian J Wang <jian.j.wang@intel.com> | 2017-12-07 17:00:23 +0800 |
|---|---|---|
| committer | Star Zeng <star.zeng@intel.com> | 2017-12-08 14:38:45 +0800 |
| commit | 2ea3576e16a2af9e21e06ef4b759833989efced2 (patch) | |
| tree | 3c651bfbac464a38531686fb6ca20dbb9ec6071a /IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf | |
| parent | 7619eed8aa260c9527d72ccd525ce70060b64f1f (diff) | |
| download | edk2-2ea3576e16a2af9e21e06ef4b759833989efced2.tar.gz edk2-2ea3576e16a2af9e21e06ef4b759833989efced2.tar.bz2 edk2-2ea3576e16a2af9e21e06ef4b759833989efced2.zip | |
IntelFrameworkModulePkg/LegacyBios: Use macro to enable/disable page 0
Current implementation uses following two methods
EnableNullDetection()
DisableNullDetection()
to enable/disable page 0. These two methods will check PCD
PcdNullPointerDetectionPropertyMask to know if the page 0 is disabled or not.
This is due to the fact that old GCD service doesn't provide paging related
attributes of memory block. Since this issue has been fixed, GCD services
can be used to determine the paging status of page 0. This is also make it
possible to just use a new macro
ACCESS_PAGE0_CODE(
<code accessing page 0>
);
to replace above methods to do the same job, which also makes code more
readability.
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Diffstat (limited to 'IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf')
| -rw-r--r-- | IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf index 6efc7f36ae..180c18e3fc 100644 --- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf +++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosDxe.inf @@ -148,7 +148,6 @@ gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdHighPmmMemorySize ## CONSUMES
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdOpromReservedMemoryBase ## CONSUMES
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdOpromReservedMemorySize ## CONSUMES
- gEfiMdeModulePkgTokenSpaceGuid.PcdNullPointerDetectionPropertyMask ## CONSUMES
[Depex]
gEfiLegacyRegion2ProtocolGuid AND gEfiLegacyInterruptProtocolGuid AND gEfiLegacyBiosPlatformProtocolGuid AND gEfiLegacy8259ProtocolGuid AND gEfiGenericMemTestProtocolGuid AND gEfiCpuArchProtocolGuid AND gEfiTimerArchProtocolGuid AND gEfiVariableWriteArchProtocolGuid
|