diff options
Diffstat (limited to 'lib/efi_loader/efi_device_path.c')
| -rw-r--r-- | lib/efi_loader/efi_device_path.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c index ea097839db..e2e98a39be 100644 --- a/lib/efi_loader/efi_device_path.c +++ b/lib/efi_loader/efi_device_path.c @@ -21,6 +21,9 @@ #include <asm-generic/unaligned.h> #include <linux/compat.h> /* U16_MAX */ +#ifdef CONFIG_BLKMAP +const efi_guid_t efi_guid_blkmap_dev = U_BOOT_BLKMAP_DEV_GUID; +#endif #ifdef CONFIG_SANDBOX const efi_guid_t efi_guid_host_dev = U_BOOT_HOST_DEV_GUID; #endif @@ -556,6 +559,16 @@ __maybe_unused static unsigned int dp_size(struct udevice *dev) return dp_size(dev->parent) + sizeof(struct efi_device_path_vendor) + 1; #endif +#ifdef CONFIG_BLKMAP + case UCLASS_BLKMAP: + /* + * blkmap devices will be represented as a vendor + * device node with an extra byte for the device + * number. + */ + return dp_size(dev->parent) + + sizeof(struct efi_device_path_vendor) + 1; +#endif default: return dp_size(dev->parent); } @@ -613,6 +626,23 @@ __maybe_unused static void *dp_fill(void *buf, struct udevice *dev) #endif case UCLASS_BLK: switch (dev->parent->uclass->uc_drv->id) { +#ifdef CONFIG_BLKMAP + case UCLASS_BLKMAP: { + struct efi_device_path_vendor *dp; + struct blk_desc *desc = dev_get_uclass_plat(dev); + + dp_fill(buf, dev->parent); + dp = buf; + ++dp; + dp->dp.type = DEVICE_PATH_TYPE_HARDWARE_DEVICE; + dp->dp.sub_type = DEVICE_PATH_SUB_TYPE_VENDOR; + dp->dp.length = sizeof(*dp) + 1; + memcpy(&dp->guid, &efi_guid_blkmap_dev, + sizeof(efi_guid_t)); + dp->vendor_data[0] = desc->devnum; + return &dp->vendor_data[1]; + } +#endif #ifdef CONFIG_SANDBOX case UCLASS_HOST: { /* stop traversing parents at this point: */ |