Add more debugging to linuxefi

Forwarded: no
Last-Update: 2013-01-29

Patch-Name: linuxefi_debug.patch

diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
index b79e6320ba9cfe1de6705993e74f8766ab8424db..a124c5e1fc06b07d9763ab3be6ebb5da7f14c071 100644 (file)
--- a/grub-core/loader/i386/efi/linux.c
+++ b/grub-core/loader/i386/efi/linux.c
@@ -19,6 +19,7 @@
 #include <grub/loader.h>
 #include <grub/file.h>
 #include <grub/err.h>
+#include <grub/misc.h>
 #include <grub/types.h>
 #include <grub/mm.h>
 #include <grub/cpu/linux.h>
@@ -54,15 +55,27 @@ grub_linuxefi_secure_validate (void *data, grub_uint32_t size)
 {
   grub_efi_guid_t guid = SHIM_LOCK_GUID;
   grub_efi_shim_lock_t *shim_lock;
+  grub_efi_status_t status;
 
+  grub_dprintf ("linuxefi", "Locating shim protocol\n");
   shim_lock = grub_efi_locate_protocol(&guid, NULL);
 
   if (!shim_lock)
-    return 1;
+    {
+      grub_dprintf ("linuxefi", "shim not available\n");
+      return 1;
+    }
 
-  if (shim_lock->verify(data, size) == GRUB_EFI_SUCCESS)
-    return 1;
+  grub_dprintf ("linuxefi", "Asking shim to verify kernel signature\n");
+  status = shim_lock->verify(data, size);
+  if (status == GRUB_EFI_SUCCESS)
+    {
+      grub_dprintf ("linuxefi", "Kernel signature verification passed\n");
+      return 1;
+    }
 
+  grub_dprintf ("linuxefi", "Kernel signature verification failed (0x%lx)\n",
+               (unsigned long) status);
   return 0;
 }
 
@@ -147,6 +160,8 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
       goto fail;
     }
 
+  grub_dprintf ("linuxefi", "initrd_mem = %lx\n", (unsigned long) initrd_mem);
+
   params->ramdisk_size = size;
   params->ramdisk_image = (grub_uint32_t)(grub_uint64_t) initrd_mem;
 
@@ -236,6 +251,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
       goto fail;
     }
 
+  grub_dprintf ("linuxefi", "params = %lx\n", (unsigned long) params);
+
   memset (params, 0, 16384);
 
   if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh))
@@ -279,6 +296,9 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
       goto fail;
     }
 
+  grub_dprintf ("linuxefi", "linux_cmdline = %lx\n",
+               (unsigned long) linux_cmdline);
+
   grub_memcpy (linux_cmdline, LINUX_IMAGE, sizeof (LINUX_IMAGE));
   grub_create_loader_cmdline (argc, argv,
                               linux_cmdline + sizeof (LINUX_IMAGE) - 1,
@@ -304,6 +324,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
       goto fail;
     }
 
+  grub_dprintf ("linuxefi", "kernel_mem = %lx\n", (unsigned long) kernel_mem);
+
   if (grub_file_seek (file, start) == (grub_off_t) -1)
     {
       grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),