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efi/sb: Add support for the shim loader protocol

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Use loader protocol for image verification where available, otherwise
fall back to the old shim lock protocol.

Signed-off-by: Mate Kukri <mate.kukri@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Mate Kukri authored and Daniel Kiper committed 2025-07-11 17:46:14 +02:00
1 parent 70897d3d3e
commit ed7e053a36
4 files changed
+42 -30
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grub-core/loader/efi/linux.c
+3 -3
View File
@@ -464,10 +464,10 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
grub_dl_ref (my_mod);
if (grub_is_shim_lock_enabled () == true)
if (grub_is_using_legacy_shim_lock_protocol () == true)
{
#if defined(__i386__) || defined(__x86_64__)
grub_dprintf ("linux", "shim_lock enabled, falling back to legacy Linux kernel loader\n");
grub_dprintf ("linux", "using legacy shim_lock protocol, falling back to legacy Linux kernel loader\n");
err = grub_cmd_linux_x86_legacy (cmd, argc, argv);
@@ -476,7 +476,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
else
goto fail;
#else
grub_dprintf ("linux", "shim_lock enabled, trying Linux kernel EFI stub loader\n");
grub_dprintf ("linux", "using legacy shim_lock protocol on non-x86, only db verifiable kernels will work\n");
#endif
}