From: "Patrick Rudolph" <patrick.rudolph@9elements.com>
To: "Dong, Guo" <guo.dong@intel.com>
Cc: "You, Benjamin" <benjamin.you@intel.com>,
"Ma, Maurice" <maurice.ma@intel.com>,
"devel@edk2.groups.io" <devel@edk2.groups.io>
Subject: Re: [edk2-devel] [PATCH V2 1/1] UefiPayloadPkg: Remove PEI phase from Payload
Date: Thu, 28 Jan 2021 08:40:29 +0100 [thread overview]
Message-ID: <CALNFmy19uX1RjDSi+MKS3frSW0-+m+7jzVYVo6tnpDZeEZ2DYw@mail.gmail.com> (raw)
In-Reply-To: <BYAPR11MB36224A6E26D9FCCE7553EA9B9EBB9@BYAPR11MB3622.namprd11.prod.outlook.com>
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@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@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Patrick
> > Rudolph
> > Sent: Tuesday, January 26, 2021 8:21
> > To: Dong, Guo <guo.dong@intel.com>
> > Cc: You, Benjamin <benjamin.you@intel.com>; devel@edk2.groups.io; Ma,
> > Maurice <maurice.ma@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
>
next prev parent reply other threads:[~2021-01-28 7:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-16 0:35 [edk2-devel] [PATCH V2 0/1] UefiPayloadPkg: Remove PEI phase from Payload Guo Dong
2020-11-16 0:35 ` [edk2-devel] [PATCH V2 1/1] " Guo Dong
2020-11-16 21:39 ` Ma, Maurice
2021-01-26 16:21 ` Patrick Rudolph
[not found] ` <DM6PR11MB27932D059A84A78B3CEB53E389BB9@DM6PR11MB2793.namprd11.prod.outlook.com>
2021-01-27 16:10 ` Guo Dong
2021-01-28 7:40 ` Patrick Rudolph [this message]
2021-01-28 22:34 ` Guo Dong
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