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 <takahiro.aka...@linaro.org>
---
lib/efi_loader/efi_disk.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index d72f455901f2..d36f22cedc52 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -253,6 +253,7 @@ 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 */
@@ -284,7 +285,9 @@ static efi_status_t efi_disk_add_dev(
diskobj->dp);
if (ret != EFI_SUCCESS)
return ret;
- if (part >= 1 && efi_fs_exists(desc, part)) {
+ /* partitions or whole disk without partitions */
+ if ((part >= 1 || part_get_info(desc, part, &info)) &&
+ efi_fs_exists(desc, part)) {
diskobj->volume = efi_simple_file_system(desc, part,
diskobj->dp);
ret = efi_add_protocol(&diskobj->header,
--
2.21.0
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
