---
.../firmware/efi/libstub/efi-stub-helper.c | 40 +++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/drivers/firmware/efi/libstub/efi-stub-helper.c b/drivers/firmware/efi/libstub/efi-stub-helper.c
index 294958ff1ee6..fdc8d312b2e0 100644
--- a/drivers/firmware/efi/libstub/efi-stub-helper.c
+++ b/drivers/firmware/efi/libstub/efi-stub-helper.c
@@ -346,6 +346,26 @@ char *efi_convert_cmdline(efi_loaded_image_t *image, int *cmd_line_len)
int options_bytes = 0, safe_options_bytes = 0; /* UTF-8 bytes */
bool in_quote = false;
efi_status_t status;
+ size_t i;
+ efi_input_key_t key;
+
+ efi_info("Load options: %08x @ %p\n", options_chars, options);
+
+ efi_info("Hex dump:\n");
+ i = 0;
+ do {
+ const u8 *p = (const u8 *)options;
+ size_t j;
+ efi_info("%p: ", p + i);
+ for (j = i; j < options_chars && j < i + 8; j++)
+ efi_printk("%02x ", p[j]);
+ for (; j < i + 8; j++)
+ efi_printk("%2c ", ' ');
+ for (j = i; j < options_chars && j < i + 8; j++)
+ efi_printk("%c", isprint(p[j]) ? p[j] : '.');
+ efi_printk("\n");
+ i += 8;
+ } while (i < options_chars);
efi_apply_loadoptions_quirk((const void **)&options, &options_chars);
options_chars /= sizeof(*options);
@@ -410,6 +430,26 @@ char *efi_convert_cmdline(efi_loaded_image_t *image, int *cmd_line_len)
snprintf((char *)cmdline_addr, options_bytes, "%.*ls",
options_bytes - 1, options);
+ efi_info("Command line: %.*ls\n", options_bytes - 1, options);
+ efi_info("Hex dump:\n");
+ i = 0;
+ do {
+ const u8 *p = (const u8 *)cmdline_addr;
+ size_t j;
+ efi_info("%p: ", p + i);
+ for (j = i; j < options_bytes && j < i + 8; j++)
+ efi_printk("%02x ", p[j]);
+ for (; j < i + 8; j++)
+ efi_printk("%2c ", ' ');
+ for (j = i; j < options_bytes && j < i + 8; j++)
+ efi_printk("%c", isprint(p[j]) ? p[j] : '.');
+ efi_printk("\n");
+ i += 8;
+ } while (i < options_bytes);
+
+ efi_printk("\nPress any key to continue\n");
+ efi_wait_for_key(30 * EFI_USEC_PER_SEC, &key);
+
*cmd_line_len = options_bytes;
return (char *)cmdline_addr;
}
--
2.26.2
