Thanks Sami and Jiewen. I will bring this to ASWG attention to confirm the change.
> -----Original Message----- > From: Yao, Jiewen <jiewen....@intel.com> > Sent: Thursday, March 17, 2022 9:23 AM > To: Sami Mujawar <sami.muja...@arm.com>; Xu, Min M > <min.m...@intel.com>; devel@edk2.groups.io > Cc: Kinney, Michael D <michael.d.kin...@intel.com>; Gao, Liming > <gaolim...@byosoft.com.cn>; Liu, Zhiguang <zhiguang....@intel.com>; Wang, > Jian J <jian.j.w...@intel.com>; Lu, Ken <ken...@intel.com>; Gerd Hoffmann > <kra...@redhat.com>; nd <n...@arm.com>; Samer El-Haj-Mahmoud > <samer.el-haj-mahm...@arm.com>; Thanu Rangarajan > <thanu.rangara...@arm.com> > Subject: RE: [PATCH 5/8] MdePkg: Define CC Measure EventLog ACPI Table > > Thanks to remind me. > > I uploaded version 2 in the same mantis. > > Thank you > Yao Jiewen > > > -----Original Message----- > > From: Sami Mujawar <sami.muja...@arm.com> > > Sent: Thursday, March 17, 2022 9:10 PM > > To: Yao, Jiewen <jiewen....@intel.com>; Xu, Min M > <min.m...@intel.com>; > > devel@edk2.groups.io > > Cc: Kinney, Michael D <michael.d.kin...@intel.com>; Gao, Liming > > <gaolim...@byosoft.com.cn>; Liu, Zhiguang <zhiguang....@intel.com>; > Wang, > > Jian J <jian.j.w...@intel.com>; Lu, Ken <ken...@intel.com>; Gerd Hoffmann > > <kra...@redhat.com>; nd <n...@arm.com>; Samer El-Haj-Mahmoud > <Samer.El- > > haj-mahm...@arm.com>; Thanu Rangarajan > <thanu.rangara...@arm.com> > > Subject: Re: [PATCH 5/8] MdePkg: Define CC Measure EventLog ACPI Table > > > > Hi Jiewen, > > > > I was informed there is an ASWG ECR > > https://mantis.uefi.org/mantis/view.php?id=2177 for TDEL. I can see the > > content has been approved for ACPI 6.5. > > > > Do you plan to update this ECR to reflect the changes for CCEL or this would > be > > a separate request? > > > > Regards, > > > > Sami Mujawar > > > > On 10/03/2022, 10:27, "Sami Mujawar" <sami.muja...@arm.com> wrote: > > > > Hi Jiewen, > > > > Please find my response inline marked [SAMI]. > > > > Regards, > > > > Sami Mujawar > > > > On 10/03/2022, 05:49, "Yao, Jiewen" <jiewen....@intel.com> wrote: > > > > HI Sami > > I think it is OK to update signature to `CCEL`. That means it will > > be > applicable > > for other CC, right? > > [SAMI] Yes, the same table can then be used by other CC. > > > > Then, I recommend we add CcType there. > > > > typedef struct { > > EFI_ACPI_DESCRIPTION_HEADER Header; > > EFI_CC_TYPE CcType; <== new field. > > UINT16 Rsvd; > > UINT64 Laml; > > UINT64 Lasa; > > } EFI_CC_EVENTLOG_ACPI_TABLE; > > > > Do you agree? > > [SAMI] Agree, the above suggestion looks good to me. > > > > Thank you > > Yao Jiewen > > > > > -----Original Message----- > > > From: Sami Mujawar <sami.muja...@arm.com> > > > Sent: Wednesday, March 9, 2022 11:35 PM > > > To: Xu, Min M <min.m...@intel.com>; devel@edk2.groups.io > > > Cc: Kinney, Michael D <michael.d.kin...@intel.com>; Gao, Liming > > > <gaolim...@byosoft.com.cn>; Liu, Zhiguang > <zhiguang....@intel.com>; > > Yao, > > > Jiewen <jiewen....@intel.com>; Wang, Jian J > <jian.j.w...@intel.com>; > > Lu, Ken > > > <ken...@intel.com>; Gerd Hoffmann <kra...@redhat.com>; nd > > <n...@arm.com>; > > > Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com>; > > > thanu.rangara...@arm.com > > > Subject: Re: [PATCH 5/8] MdePkg: Define CC Measure EventLog ACPI > > Table > > > > > > Hi Min, > > > > > > Thank you for this patch. > > > > > > Please find my response inline marked [SAMI]. > > > > > > Regards, > > > > > > Sami Mujawar > > > > > > > > > On 02/03/2022 12:28 AM, Min Xu wrote: > > > > RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3853 > > > > > > > > TDVF set up an ACPI table (EFI_CC_EVENTLOG_ACPI_TABLE) to pass > the > > > > event-log information. The event log created by the TD owner > contains > > > > the hashes to reconstruct the MRTD and RTMR registers. > > > > > > > > Please refer to Sec 4.3.3 in blow link: > > > > > > https://www.intel.com/content/dam/develop/external/us/en/documents/ > > > > intel-tdx-guest-hypervisor-communication-interface-1.0-344426- > > 002.pdf > > > > > > > > Cc: Michael D Kinney <michael.d.kin...@intel.com> > > > > Cc: Liming Gao <gaolim...@byosoft.com.cn> > > > > Cc: Zhiguang Liu <zhiguang....@intel.com> > > > > Cc: Jiewen Yao <jiewen....@intel.com> > > > > Cc: Jian J Wang <jian.j.w...@intel.com> > > > > Cc: Ken Lu <ken...@intel.com> > > > > Cc: Sami Mujawar <sami.muja...@arm.com> > > > > Cc: Gerd Hoffmann <kra...@redhat.com> > > > > Signed-off-by: Min Xu <min.m...@intel.com> > > > > --- > > > > MdePkg/Include/Protocol/CcMeasurement.h | 20 > > ++++++++++++++++++++ > > > > 1 file changed, 20 insertions(+) > > > > > > > > diff --git a/MdePkg/Include/Protocol/CcMeasurement.h > > > b/MdePkg/Include/Protocol/CcMeasurement.h > > > > index 83eaafaf10a6..86de226c1d82 100644 > > > > --- a/MdePkg/Include/Protocol/CcMeasurement.h > > > > +++ b/MdePkg/Include/Protocol/CcMeasurement.h > > > > @@ -307,4 +307,24 @@ extern EFI_GUID > gEfiCcFinalEventsTableGuid; > > > > > > > > extern EFI_GUID gCcEventEntryHobGuid; > > > > > > > > +// > > > > +// Define the CC Measure EventLog ACPI Table > > > > +// > > > > +#pragma pack(1) > > > > + > > > > +typedef struct { > > > > + EFI_ACPI_DESCRIPTION_HEADER Header; > > > > + UINT32 Rsvd; > > > > + UINT64 Laml; > > > > + UINT64 Lasa; > > > > +} EFI_CC_EVENTLOG_ACPI_TABLE; > > > > + > > > > +#pragma pack() > > > > + > > > > +// > > > > +// Define the signature and revision of CC Measurement EventLog > ACPI > > Table > > > for Td guest > > > > +// > > > > +#define EFI_CC_EVENTLOG_ACPI_TABLE_TD_SIGNATURE > > SIGNATURE_32('T', > > > 'D', 'E', 'L') > > > > +#define EFI_CC_EVENTLOG_ACPI_TABLE_TD_REVISION 1 > > > [SAMI] I can see that the above macros have the _TD_ infix. Is the > > > intention here that each architecture shall define its own > > signature > and > > > revision? > > > Would it be possible to make the signature generic across > architectures, > > > e.g. "SIGNATURE_32('C', 'C', 'E', 'L')" ? > > > [/SAMI] > > > > + > > > > #endif > > > > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#87664): https://edk2.groups.io/g/devel/message/87664 Mute This Topic: https://groups.io/mt/89491522/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
