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The GUID is used by the linux kernel but not sure if part of any formal spec</div>
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<a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/efi.h?h=v5.14-rc1&id=ec93fc371f014a6fb483e3556061ecad4b40735c" id="LPlnk582607">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/efi.h?h=v5.14-rc1&id=ec93fc371f014a6fb483e3556061ecad4b40735c</a><br>
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If we feel MdeModulePkg is a better place I am fine with that as well and can release a v2 version.</div>
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<p>Thanks,</p>
<p>Jeff</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Kinney, Michael D <michael.d.kinney@intel.com><br>
<b>Sent:</b> Thursday, July 15, 2021 4:56 PM<br>
<b>To:</b> devel@edk2.groups.io <devel@edk2.groups.io>; Jeff Brasen <jbrasen@nvidia.com>; Kinney, Michael D <michael.d.kinney@intel.com><br>
<b>Cc:</b> ardb+tianocore@kernel.org <ardb+tianocore@kernel.org>; Justen, Jordan L <jordan.l.justen@intel.com>; gaoliming@byosoft.com.cn <gaoliming@byosoft.com.cn>; Liu, Zhiguang <zhiguang.liu@intel.com><br>
<b>Subject:</b> RE: [edk2-devel] [PATCH 1/1] MdePkg: add definition of LINUX_EFI_INITRD_MEDIA_GUID</font>
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<div class="PlainText">External email: Use caution opening links or attachments<br>
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Is this GUID defined in an industry standard or public spec?<br>
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If not, then MdeModulePkg may be a better choice if this is a GUID defines for EDK II extensions.<br>
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Mike<br>
<br>
> -----Original Message-----<br>
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Jeff Brasen via groups.io<br>
> Sent: Thursday, July 15, 2021 11:08 AM<br>
> To: devel@edk2.groups.io<br>
> Cc: ardb+tianocore@kernel.org; Kinney, Michael D <michael.d.kinney@intel.com>; Justen, Jordan L<br>
> <jordan.l.justen@intel.com>; gaoliming@byosoft.com.cn; Liu, Zhiguang <zhiguang.liu@intel.com>; Jeff Brasen<br>
> <jbrasen@nvidia.com><br>
> Subject: [edk2-devel] [PATCH 1/1] MdePkg: add definition of LINUX_EFI_INITRD_MEDIA_GUID<br>
><br>
> Add LINUX_EFI_INITRD_MEDIA_GUID to our collection of GUID definitions,<br>
> it can be used in a media device path to specify a Linux style initrd<br>
> that can be loaded by the OS using the LoadFile2 protocol.<br>
><br>
> Move these defines to MdePkg from OvmfPkg as these are relevant to<br>
> non-OVMF targets as well.<br>
><br>
> Ref: <a href="https://bugzilla.tianocore.org/show_bug.cgi?id=2564">https://bugzilla.tianocore.org/show_bug.cgi?id=2564</a><br>
> Signed-off-by: Jeff Brasen <jbrasen@nvidia.com><br>
> ---<br>
> MdePkg/MdePkg.dec | 5 +++++<br>
> OvmfPkg/OvmfPkg.dec | 1 -<br>
> {OvmfPkg => MdePkg}/Include/Guid/LinuxEfiInitrdMedia.h | 0<br>
> 3 files changed, 5 insertions(+), 1 deletion(-)<br>
> rename {OvmfPkg => MdePkg}/Include/Guid/LinuxEfiInitrdMedia.h (100%)<br>
><br>
> diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec<br>
> index c5319fdd71ca..a28a2daaffa8 100644<br>
> --- a/MdePkg/MdePkg.dec<br>
> +++ b/MdePkg/MdePkg.dec<br>
> @@ -818,6 +818,11 @@ [Guids]<br>
> #<br>
> gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }}<br>
><br>
> + #<br>
> + # GUID used to provide initrd to linux via LoadFile2 protocol<br>
> + #<br>
> + gLinuxEfiInitrdMediaGuid = {0x5568e427, 0x68fc, 0x4f3d, {0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68}}<br>
> +<br>
> [Guids.IA32, Guids.X64]<br>
> ## Include/Guid/Cper.h<br>
> gEfiIa32X64ErrorTypeCacheCheckGuid = { 0xA55701F5, 0xE3EF, 0x43de, { 0xAC, 0x72, 0x24, 0x9B, 0x57, 0x3F, 0xAD, 0x2C }}<br>
> diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec<br>
> index 6ae733f6e39f..3153f5ae4540 100644<br>
> --- a/OvmfPkg/OvmfPkg.dec<br>
> +++ b/OvmfPkg/OvmfPkg.dec<br>
> @@ -118,7 +118,6 @@ [Guids]<br>
> gMicrosoftVendorGuid = {0x77fa9abd, 0x0359, 0x4d32, {0xbd, 0x60, 0x28, 0xf4, 0xe7, 0x8f, 0x78, 0x4b}}<br>
> gEfiLegacyBiosGuid = {0x2E3044AC, 0x879F, 0x490F, {0x97, 0x60, 0xBB, 0xDF, 0xAF, 0x69, 0x5F, 0x50}}<br>
> gEfiLegacyDevOrderVariableGuid = {0xa56074db, 0x65fe, 0x45f7, {0xbd, 0x21, 0x2d, 0x2b, 0xdd, 0x8e, 0x96, 0x52}}<br>
> - gLinuxEfiInitrdMediaGuid = {0x5568e427, 0x68fc, 0x4f3d, {0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68}}<br>
> gQemuKernelLoaderFsMediaGuid = {0x1428f772, 0xb64a, 0x441e, {0xb8, 0xc3, 0x9e, 0xbd, 0xd7, 0xf8, 0x93, 0xc7}}<br>
> gGrubFileGuid = {0xb5ae312c, 0xbc8a, 0x43b1, {0x9c, 0x62, 0xeb, 0xb8, 0x26, 0xdd, 0x5d, 0x07}}<br>
> gConfidentialComputingSecretGuid = {0xadf956ad, 0xe98c, 0x484c, {0xae, 0x11, 0xb5, 0x1c, 0x7d, 0x33, 0x64, 0x47}}<br>
> diff --git a/OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h b/MdePkg/Include/Guid/LinuxEfiInitrdMedia.h<br>
> similarity index 100%<br>
> rename from OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h<br>
> rename to MdePkg/Include/Guid/LinuxEfiInitrdMedia.h<br>
> --<br>
> 2.25.1<br>
><br>
><br>
><br>
> <br>
><br>
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