[edk2-devel] [PATCH V2 1/1] UefiPayloadPkg: Remove PEI phase from Payload

[Guo Dong]

Hi Patrick,
Bootloader (coreboot or Slim Bootloader) is similar with EDKII PEI, so measured boot should 
work without PEI phase in UEFI payload.
In general, bootloader need pass required information to UEFI payload.
BlSupportDxe could get these information and set required PCDs.

We need well define the interface with bootloader on how to support measured boot, 
Also including measured boot enable/disable, TPM log event, etc. 

Thanks,
Guo
 > -----Original Message-----
 > From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of Patrick
 > Rudolph
 > Sent: Tuesday, January 26, 2021 8:21
 > To: Dong, Guo <guo.dong at intel.com>
 > Cc: You, Benjamin <benjamin.you at intel.com>; devel at edk2.groups.io; Ma,
 > Maurice <maurice.ma at intel.com>
 > Subject: Re: [edk2-devel] [PATCH V2 1/1] UefiPayloadPkg: Remove PEI phase
 > from Payload
 >
 > Hi,
 > I'm trying to rebase my TPM support patches for UefiPayloadPkg on top of
 > master.
 >
 > The Tcg*Dxe needs the following PCDs set by their Tcg*Pei counterparts:
 > * PcdTpm2HashMask
 > * PcdTcg2HashAlgorithmBitmap
 > * PcdTpmInstanceGuid
 >
 > As there's no PEI stage any more, how do you plan to support TPMs in
 > UefiPayloadPkg?
 >
 > Kind Regards,
 > Patrick Rudolph



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