Hi Leif,

Actaully I don’t understand the logic in BdsEntry.c. I also paste the logic in below.

FilePath = FileDevicePath (NULL, EFI_REMOVABLE_MEDIA_FILE_NAME);

Status = EfiBootManagerInitializeLoadOption (

&LoadOption,

LoadOptionNumberUnassigned,

LoadOptionTypePlatformRecovery,

LOAD_OPTION_ACTIVE,

L"Default PlatformRecovery",

FilePath,

NULL,

0

);

At here, the FilePath is “\EFI\BOOT\BOOTAA64.EFI”. But the device path isn’t assigned. I think that it should be the default device path. What’s the default one? FS0? I doubt that it should be FS0, so I have the question in previous mail.

Best Regards

Haojian

From: Leif Lindholmmailto:leif.lindholm@linaro.org Sent: 2017年1月20日 21:52 To: haojian.zhuang@linaro.orgmailto:haojian.zhuang@linaro.org Cc: ard.biesheuvel@linaro.orgmailto:ard.biesheuvel@linaro.org; linaro-uefi@lists.linaro.orgmailto:linaro-uefi@lists.linaro.org Subject: Re: how to get mapped FS0 in UEFI shell

Hi Haojian,

On Fri, Jan 20, 2017 at 09:53:20AM +0800, haojian.zhuang@linaro.org wrote:

After I switched to generic BDS, I can’t find FS0 in UEFI shell. Is it right behavior?

What are you expecting to see? A partition on the eMMC? I would have thought EfiBootManagerConnectAll() (called from ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c) would have the same effect as the call to BdsLibConnectAll().

Was something in the ArmBds manually wiring up specific controllers? Is there some reason why the eMMC is not detected?

Regards,

Leif