[edk2-devel] [PATCH V2 1/1] UefiPayloadPkg: Remove PEI phase from Payload
Patrick Rudolph
patrick.rudolph at 9elements.com
Thu Jan 28 07:40:29 UTC 2021
Hi,
Modifying the bootloader and defining an interface could take a while
and requires to add code that's already present in EDK2.
Would it be possible to move the Tcg*Pei code to a Library, so that it
could be directly used by BlSupportDxe in order to set the PCDs?
Kind Regards,
Patrick Rudolph
On Wed, Jan 27, 2021 at 5:10 PM Dong, Guo <guo.dong at intel.com> wrote:
>
>
> 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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