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From: "gaoliming" <gaoliming@byosoft.com.cn>
To: "'Min Xu'" <min.m.xu@intel.com>,
	<devel@edk2.groups.io>
Cc: "'Michael D Kinney'" <michael.d.kinney@intel.com>,
	"'Zhiguang Liu'" <zhiguang.liu@intel.com>,
	"'Gerd Hoffmann'" <kraxel@redhat.com>,
	"'Jiewen Yao'" <jiewen.yao@intel.com>,
	"'Sami Mujawar'" <sami.mujawar@arm.com>
References: <20220302002807.982-1-min.m.xu@intel.com> <20220302002807.982-4-min.m.xu@intel.com>
In-Reply-To: <20220302002807.982-4-min.m.xu@intel.com>
Subject: =?UTF-8?B?5Zue5aSNOiBbUEFUQ0ggMy84XSBNZGVQa2c6IEFkZCBkZWZpbml0aW9uIG9mIEVGSV9DQ19FVkVOVF9IT0JfR1VJRA==?=
Date: Wed, 2 Mar 2022 09:52:45 +0800
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Min:
  Is this GUID from
intel-tdx-guest-hypervisor-communication-interface-1.0-344426-002.pdf?=20

Thanks
Liming
> -----=D3=CA=BC=FE=D4=AD=BC=FE-----
> =B7=A2=BC=FE=C8=CB: Min Xu <min.m.xu@intel.com>
> =B7=A2=CB=CD=CA=B1=BC=E4: 2022=C4=EA3=D4=C22=C8=D5 8:28
> =CA=D5=BC=FE=C8=CB: devel@edk2.groups.io
> =B3=AD=CB=CD: Min Xu <min.m.xu@intel.com>; Michael D Kinney
> <michael.d.kinney@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>;
> Zhiguang Liu <zhiguang.liu@intel.com>; Gerd Hoffmann =
<kraxel@redhat.com>;
> Jiewen Yao <jiewen.yao@intel.com>; Sami Mujawar
> <sami.mujawar@arm.com>
> =D6=F7=CC=E2: [PATCH 3/8] MdePkg: Add definition of =
EFI_CC_EVENT_HOB_GUID
>=20
> RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3D3853
>=20
> EFI_CC_EVENT_HOB_GUID is the global ID of a GUIDed HOB used to pass
> TDX_DIGEST_VALUE from SEC to a DXE Driver ( This DXE driver will
> be introduced in the following commit in this patch-sets ). In that
> DXE driver this GUIDed HOB will be parsed and the TDX_DIGEST_VALUE
> then will be extracted. After that a EFI_CC_EVENT will be created
> based on it.
>=20
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Zhiguang Liu <zhiguang.liu@intel.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Sami Mujawar <sami.mujawar@arm.com>
> Signed-off-by: Min Xu <min.m.xu@intel.com>
> ---
>  MdePkg/Include/Protocol/CcMeasurement.h | 8 ++++++++
>  MdePkg/MdePkg.dec                       | 1 +
>  2 files changed, 9 insertions(+)
>=20
> diff --git a/MdePkg/Include/Protocol/CcMeasurement.h
> b/MdePkg/Include/Protocol/CcMeasurement.h
> index 68029e977fac..83eaafaf10a6 100644
> --- a/MdePkg/Include/Protocol/CcMeasurement.h
> +++ b/MdePkg/Include/Protocol/CcMeasurement.h
> @@ -299,4 +299,12 @@ typedef struct {
>=20
>  extern EFI_GUID  gEfiCcFinalEventsTableGuid;
>=20
> +//
> +// The Global ID of a GUIDed HOB used to pass a CC_EVENT from a SEC =
to a
> TDX DXE Driver.
> +//
> +#define EFI_CC_EVENT_HOB_GUID \
> +  { 0x20f8fd36, 0x6d00, 0x40fb, { 0xb7, 0x04, 0xd1, 0x2c, 0x15, 0x3c,
0x62,
> 0xeb } }
> +
> +extern EFI_GUID  gCcEventEntryHobGuid;
> +
>  #endif
> diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
> index 1934c9840423..38f01c162e97 100644
> --- a/MdePkg/MdePkg.dec
> +++ b/MdePkg/MdePkg.dec
> @@ -828,6 +828,7 @@
>=20
>    ## Include/Protocol/CcMeasurement.h
>    gEfiCcFinalEventsTableGuid     =3D { 0xdd4a4648, 0x2de7, 0x4665, { =
0x96,
> 0x4d, 0x21, 0xd9, 0xef, 0x5f, 0xb4, 0x46 }}
> +  gCcEventEntryHobGuid           =3D { 0x20f8fd36, 0x6d00, 0x40fb,
> { 0xb7, 0x04, 0xd1, 0x2c, 0x15, 0x3c, 0x62, 0xeb }}
>=20
>  [Guids.IA32, Guids.X64]
>    ## Include/Guid/Cper.h
> --
> 2.29.2.windows.2