Is this the generic logic for all eMMC device? If yes, can you point the
statement in public spec for eMMC entries?
Thanks
Liming
> -----邮件原件-----
> 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Sean Rhodes
> 发送时间: 2022年2月1日 5:01
> 收件人: devel@edk2.groups.io
> 抄送: Sean Rhodes <sean@starlabs.systems>; Matt DeVillier
> <matt.devill...@gmail.com>
> 主题: [edk2-devel] [PATCH 43/43] MdeModulePkg/BmBoot: skip secondary
> eMMC entries
>
> Internal eMMC devices often show multiple entries, so skip
> any after the initial entry.
>
> Signed-off-by: Matt DeVillier <matt.devill...@gmail.com>
> Signed-off-by: Sean Rhodes <sean@starlabs.systems>
> ---
> MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
> b/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
> index 962892d38f..e21ac2c510 100644
> --- a/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
> +++ b/MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
> @@ -2175,12 +2175,14 @@ BmEnumerateBootOptions (
> EFI_BLOCK_IO_PROTOCOL *BlkIo;
>
> UINTN Removable;
>
> UINTN Index;
>
> + UINTN EmmcCount;
>
> CHAR16 *Description;
>
>
>
> ASSERT (BootOptionCount != NULL);
>
>
>
> *BootOptionCount = 0;
>
> BootOptions = NULL;
>
> + EmmcCount = 0;
>
>
>
> //
>
> // Parse removable block io followed by fixed block io
>
> @@ -2219,6 +2221,16 @@ BmEnumerateBootOptions (
> }
>
>
>
> Description = BmGetBootDescription (Handles[Index]);
>
> + //
>
> + // Skip secondary entries for internal eMMC devices
>
> + //
>
> + if (StrCmp(Description, L"eMMC Device") == 0) {
>
> + EmmcCount++;
>
> + if (EmmcCount > 1) {
>
> + continue;
>
> + }
>
> + }
>
> +
>
> BootOptions = ReallocatePool (
>
> sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) *
> (*BootOptionCount),
>
> sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) *
> (*BootOptionCount + 1),
>
> --
> 2.32.0
>
>
>
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