The operation of this function can be confusing. Add some debugging so we can see what it is doing and when it is called.
Also drop the preprocessor usage.
Signed-off-by: Simon Glass sjg@chromium.org ---
cmd/bootefi.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-)
diff --git a/cmd/bootefi.c b/cmd/bootefi.c index 3a8b2b60618..d8685f0e878 100644 --- a/cmd/bootefi.c +++ b/cmd/bootefi.c @@ -65,6 +65,9 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path, struct efi_device_path *device, *image; efi_status_t ret;
+ log_debug("dev=%s, devnr=%s, path=%s, buffer=%p, size=%zx\n", dev, + devnr, path, buffer, buffer_size); + /* Forget overwritten image */ if (buffer + buffer_size >= image_addr && image_addr + image_size >= buffer) @@ -72,18 +75,19 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path,
/* Remember only PE-COFF and FIT images */ if (efi_check_pe(buffer, buffer_size, NULL) != EFI_SUCCESS) { -#ifdef CONFIG_FIT - if (fit_check_format(buffer, IMAGE_SIZE_INVAL)) + if (IS_ENABLED(CONFIG_FIT) && + !fit_check_format(buffer, IMAGE_SIZE_INVAL)) { + /* + * FIT images of type EFI_OS are started via command + * bootm. We should not use their boot device with the + * bootefi command. + */ + buffer = 0; + buffer_size = 0; + } else { + log_debug("- invalid image\n"); return; - /* - * FIT images of type EFI_OS are started via command bootm. - * We should not use their boot device with the bootefi command. - */ - buffer = 0; - buffer_size = 0; -#else - return; -#endif + } }
/* efi_set_bootdev() is typically called repeatedly, recover memory */ @@ -103,7 +107,11 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path, efi_free_pool(image_tmp); } bootefi_image_path = image; + log_debug("- recorded device %ls\n", efi_dp_str(device)); + if (image) + log_debug("- and image %ls\n", efi_dp_str(image)); } else { + log_debug("- efi_dp_from_name() failed, err=%lx\n", ret); efi_clear_bootdev(); } } @@ -451,6 +459,7 @@ efi_status_t efi_run_image(void *source_buffer, efi_uintn_t source_size) u16 *load_options;
if (!bootefi_device_path || !bootefi_image_path) { + log_debug("Not loaded from disk\n"); /* * Special case for efi payload not loaded from disk, * such as 'bootefi hello' or for example payload @@ -476,6 +485,7 @@ efi_status_t efi_run_image(void *source_buffer, efi_uintn_t source_size) file_path = efi_dp_append(bootefi_device_path, bootefi_image_path); msg_path = bootefi_image_path; + log_debug("Loaded from disk\n"); }
log_info("Booting %pD\n", msg_path);