Currently, a whole disk without any partitions is not associated with EFI_SIMPLE_FILE_SYSTEM_PROTOCOL. So even if it houses FAT file system, there is a chance that we may not be able to access it, particularly, when accesses are to be attempted after searching that protocol against a device handle.
With this patch, EFI_SIMPLE_FILE_SYSTEM_PROTOCOL is installed to such a disk if part_get_info() shows there is not partition table installed on it. Signed-off-by: AKASHI Takahiro <[email protected]> --- lib/efi_loader/efi_disk.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c index 7a6b06821a47..548fe667e6f8 100644 --- a/lib/efi_loader/efi_disk.c +++ b/lib/efi_loader/efi_disk.c @@ -239,6 +239,7 @@ static efi_status_t efi_disk_add_dev( struct efi_disk_obj **disk) { struct efi_disk_obj *diskobj; + disk_partition_t info; efi_status_t ret; /* Don't add empty devices */ @@ -270,7 +271,8 @@ static efi_status_t efi_disk_add_dev( diskobj->dp); if (ret != EFI_SUCCESS) return ret; - if (part >= 1) { + /* partitions or whole disk without partitions */ + if (part >= 1 || part_get_info(desc, part, &info)) { diskobj->volume = efi_simple_file_system(desc, part, diskobj->dp); ret = efi_add_protocol(&diskobj->header, -- 2.21.0 _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
