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efi: Add debugging to efi_set_bootdev()

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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>
Reviewed-by: heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Simon Glass 2022-01-29 14:58:37 -07:00 • committed by Heinrich Schuchardt
parent 3c95b323c7
commit d837cb1e3b
1 changed files with 21 additions and 11 deletions
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32
cmd/bootefi.c
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@ -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("- not remembering 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);