efi: device path for nvme
This allows our EFI API to create a device path node for NVMe
devices. It adds the necessary device path struct, uses the
nvme namespace accessor to retrieve the id and eui64, and also
provides support for the device path text protocol.
Signed-off-by: Patrick Wildt <patrick@blueri.se>
Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/include/efi_api.h b/include/efi_api.h
index 37e56da..2239617 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -422,6 +422,7 @@
# define DEVICE_PATH_SUB_TYPE_MSG_USB 0x05
# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b
# define DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS 0x0f
+# define DEVICE_PATH_SUB_TYPE_MSG_NVME 0x17
# define DEVICE_PATH_SUB_TYPE_MSG_SD 0x1a
# define DEVICE_PATH_SUB_TYPE_MSG_MMC 0x1d
@@ -464,6 +465,12 @@
u8 slot_number;
} __packed;
+struct efi_device_path_nvme {
+ struct efi_device_path dp;
+ u32 ns_id;
+ u8 eui64[8];
+} __packed;
+
#define DEVICE_PATH_TYPE_MEDIA_DEVICE 0x04
# define DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH 0x01
# define DEVICE_PATH_SUB_TYPE_CDROM_PATH 0x02