diff options
| author | Javier Martinez Canillas <javierm@redhat.com> | 2025-06-19 10:34:01 +0200 |
|---|---|---|
| committer | Ilias Apalodimas <ilias.apalodimas@linaro.org> | 2025-07-03 11:32:49 +0300 |
| commit | 2fdfb802e30a1fbd65a830a283d7bd87631f08c0 (patch) | |
| tree | 62a35306062bfdea36b71ecdffc9856914c1e221 /include | |
| parent | f517d93842ad733d8df485d8255a3649c8ac517a (diff) | |
efi_loader: disk: add EFI_PARTITION_INFO_PROTOCOL support
The UEFI 2.10 specification mentions that this protocol shall be installed
along with EFI_BLOCK_IO_PROTOCOL. It provides cached partition information
for MBR and GPT partition types.
This patch just implements support for GPT partition types. The legacy MBR
partition types is only needed for backward compatibility and can be added
as a follow-up if needed, to make it fully compliant with the EFI spec.
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/part_efi.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/part_efi.h b/include/part_efi.h index 59b7895b8a2..fb402df6f13 100644 --- a/include/part_efi.h +++ b/include/part_efi.h @@ -138,4 +138,24 @@ typedef struct _legacy_mbr { __le16 signature; } __packed legacy_mbr; +#define EFI_PARTITION_INFO_PROTOCOL_GUID \ + EFI_GUID(0x8cf2f62c, 0xbc9b, 0x4821, 0x80, \ + 0x8d, 0xec, 0x9e, 0xc4, 0x21, 0xa1, 0xa0) + +#define EFI_PARTITION_INFO_PROTOCOL_REVISION 0x0001000 +#define PARTITION_TYPE_OTHER 0x00 +#define PARTITION_TYPE_MBR 0x01 +#define PARTITION_TYPE_GPT 0x02 + +struct efi_partition_info { + u32 revision; + u32 type; + u8 system; + u8 reserved[7]; + union { + struct partition mbr; + gpt_entry gpt; + } info; +} __packed; + #endif /* _DISK_PART_EFI_H */ |