diff options
Diffstat (limited to 'src/lib/fit_payload.c')
| -rw-r--r-- | src/lib/fit_payload.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/lib/fit_payload.c b/src/lib/fit_payload.c index c977903534..b0491889c9 100644 --- a/src/lib/fit_payload.c +++ b/src/lib/fit_payload.c @@ -96,6 +96,24 @@ static bool extract(struct region *region, struct fit_image_node *node) return false; } +static struct device_tree *unpack_fdt(struct fit_image_node *image_node) +{ + void *data = image_node->data; + + if (image_node->compression != CBFS_COMPRESS_NONE) { + /* TODO: This is an ugly heuristic for how much the size will + expand on decompression, fix once FIT images support storing + the real uncompressed size. */ + struct region r = { .offset = 0, .size = image_node->size * 5 }; + data = malloc(r.size); + r.offset = (uintptr_t)data; + if (!data || extract(&r, image_node)) + return NULL; + } + + return fdt_unflatten(data); +} + /** * Add coreboot tables, CBMEM information and optional board specific strapping * IDs to the device tree loaded via FIT. @@ -181,7 +199,7 @@ void fit_payload(struct prog *payload) return; } - dt = fdt_unflatten(config->fdt->data); + dt = unpack_fdt(config->fdt); if (!dt) { printk(BIOS_ERR, "ERROR: Failed to unflatten the FDT.\n"); rdev_munmap(prog_rdev(payload), data); |