Forgot to include MdeModulePkg maintainers for review. > -----Original Message----- > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Ni, Ray > Sent: Monday, July 22, 2019 4:16 PM > To: devel@edk2.groups.io > Cc: Dong, Eric <eric.d...@intel.com>; Laszlo Ersek <ler...@redhat.com> > Subject: [edk2-devel] [PATCH 3/4] MdeModulePkg/DxeIpl: Introduce PCD > PcdUse5LevelPageTable > > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2008 > > The PCD indicates if 5-Level Paging will be enabled in long mode. > 5-Level Paging will not be enabled when the PCD is TRUE but CPU doesn't > support 5-Level Paging. > > Signed-off-by: Ray Ni <ray...@intel.com> > Cc: Eric Dong <eric.d...@intel.com> > Cc: Laszlo Ersek <ler...@redhat.com> > --- > MdeModulePkg/MdeModulePkg.dec | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/MdeModulePkg/MdeModulePkg.dec > b/MdeModulePkg/MdeModulePkg.dec index 12e0bbf579..21388595a9 > 100644 > --- a/MdeModulePkg/MdeModulePkg.dec > +++ b/MdeModulePkg/MdeModulePkg.dec > @@ -1991,6 +1991,13 @@ [PcdsFixedAtBuild, PcdsPatchableInModule, > PcdsDynamic, PcdsDynamicEx] > # @Prompt The address mask when memory encryption is enabled. > > gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrM > ask|0x0|UINT64|0x30001047 > > + ## Indicates if 5-Level Paging will be enabled in long mode. 5-Level > + Paging will not be enabled # when the PCD is TRUE but CPU doesn't > support 5-Level Paging. > + # TRUE - 5-Level Paging will be enabled.<BR> > + # FALSE - 5-Level Paging will not be enabled.<BR> > + # @Prompt Enable 5-Level Paging support in long mode. > + > + > gEfiMdeModulePkgTokenSpaceGuid.PcdUse5LevelPageTable|FALSE|BOOLE > AN|0x0 > + 001105F > + > ## Capsule In Ram is to use memory to deliver the capsules that will be > processed after system > # reset.<BR><BR> > # This PCD indicates if the Capsule In Ram is supported.<BR> > -- > 2.21.0.windows.1 > > >
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