[edk2-devel] [PATCH V2 1/1] UefiPayloadPkg: Remove PEI phase from Payload
Guo Dong
guo.dong at intel.com
Thu Jan 28 22:34:05 UTC 2021
Hi Patrick,
I don't think TCG PEI modules could be used as a library for BlSupportDxe.
Since measured boot and verified boot are important and wide used in EDKII,
I also plan to enable them as advanced features in UEFI payload.
Thanks,
Guo
> -----Original Message-----
> From: Patrick Rudolph <patrick.rudolph at 9elements.com>
> Sent: Thursday, January 28, 2021 12:40 AM
> To: Dong, Guo <guo.dong at intel.com>
> Cc: You, Benjamin <benjamin.you at intel.com>; Ma, Maurice
> <maurice.ma at intel.com>; devel at edk2.groups.io
> Subject: Re: [edk2-devel] [PATCH V2 1/1] UefiPayloadPkg: Remove PEI phase
> from Payload
>
> 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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