On 03/02/20 08:29, Ard Biesheuvel wrote:
> In an upcoming patch, we will introduce a separate DXE driver that
> exposes the virtual SimpleFileSystem implementation that carries the
> kernel and initrd passed via the QEMU command line, and a separate
> library that consumes it, to be incorporated into the boot manager.
> 
> Since the GUID used for the SimpleFileSystem implementation's device
> path will no longer be for internal use only, create a well defined
> GUID to identify the media device path.
> 
> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2566
> Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
> ---
>  OvmfPkg/Include/Guid/QemuKernelLoaderFsMedia.h | 18 ++++++++++++++++++
>  OvmfPkg/OvmfPkg.dec                            |  1 +
>  2 files changed, 19 insertions(+)
> 
> diff --git a/OvmfPkg/Include/Guid/QemuKernelLoaderFsMedia.h 
> b/OvmfPkg/Include/Guid/QemuKernelLoaderFsMedia.h
> new file mode 100644
> index 000000000000..225c3c494613
> --- /dev/null
> +++ b/OvmfPkg/Include/Guid/QemuKernelLoaderFsMedia.h
> @@ -0,0 +1,18 @@
> +/** @file
> +  GUID definition for the QEMU LoaderFs media device path, containing the
> +  kernel, initrd and command line as file objects
> +
> +  Copyright (c) 2020, Arm, Ltd. All rights reserved.<BR>
> +
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +#ifndef QEMU_KERNEL_LOADER_FS_MEDIA_GUID_H__
> +#define QEMU_KERNEL_LOADER_FS_MEDIA_GUID_H__
> +
> +#define QEMU_KERNEL_LOADER_FS_MEDIA_GUID \
> +  {0x1428f772, 0xb64a, 0x441e, {0xb8, 0xc3, 0x9e, 0xbd, 0xd7, 0xf8, 0x93, 
> 0xc7}}
> +
> +extern EFI_GUID gQemuKernelLoaderFsMediaGuid;
> +
> +#endif
> diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
> index 6849a79cd8b0..d88778600517 100644
> --- a/OvmfPkg/OvmfPkg.dec
> +++ b/OvmfPkg/OvmfPkg.dec
> @@ -87,6 +87,7 @@ [Guids]
>    gEfiLegacyBiosGuid                  = {0x2E3044AC, 0x879F, 0x490F, {0x97, 
> 0x60, 0xBB, 0xDF, 0xAF, 0x69, 0x5F, 0x50}}
>    gEfiLegacyDevOrderVariableGuid      = {0xa56074db, 0x65fe, 0x45f7, {0xbd, 
> 0x21, 0x2d, 0x2b, 0xdd, 0x8e, 0x96, 0x52}}
>    gLinuxEfiInitrdMediaGuid            = {0x5568e427, 0x68fc, 0x4f3d, {0xac, 
> 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68}}
> +  gQemuKernelLoaderFsMediaGuid        = {0x1428f772, 0xb64a, 0x441e, {0xb8, 
> 0xc3, 0x9e, 0xbd, 0xd7, 0xf8, 0x93, 0xc7}}
>  
>  [Protocols]
>    gVirtioDeviceProtocolGuid           = {0xfa920010, 0x6785, 0x4941, {0xb6, 
> 0xec, 0x49, 0x8c, 0x57, 0x9f, 0x16, 0x0a}}
> 

Reviewed-by: Laszlo Ersek <ler...@redhat.com>


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