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authorAKASHI Takahiro <takahiro.akashi@linaro.org>2019-10-07 14:59:39 +0900
committerHeinrich Schuchardt <xypron.glpk@gmx.de>2019-11-12 23:13:54 +0100
commit89cb6a5dd6d44dc7293845d63ee29fe6b7cd1d09 (patch)
tree7e8154167ea26a521dd4e5e417141dc3a9af4b78 /lib
parentcab6f06c14a2a059621ef51b241a0089beb48cfd (diff)
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efi_loader: disk: install file system protocol to a whole disk
Currently, a whole disk without any partitions is not associated with EFI_SIMPLE_FILE_SYSTEM_PROTOCOL. So even if it houses some 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 no partition table installed on it. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Only if no partition table exists, check for a file system on disk level. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'lib')
-rw-r--r--lib/efi_loader/efi_disk.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index 861fcaf..ed7fb3f 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -337,7 +337,9 @@ 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 || desc->part_type == PART_TYPE_UNKNOWN) &&
+ efi_fs_exists(desc, part)) {
diskobj->volume = efi_simple_file_system(desc, part,
diskobj->dp);
ret = efi_add_protocol(&diskobj->header,