Merge tag 'efi-2026-03-14' of https://source.denx.de/u-boot/custodians/u-boot-efi into next

Pull request efi-2026-03-14

CI: https://source.denx.de/u-boot/custodians/u-boot-efi/-/pipelines/29512

UEFI:

* Require at least 128 KiB of stack space to use EFI sub-system.
* Avoid buffer overrun in efi_var_restore().
* Avoid superfluous variable store writes on unchanged data
* Implement SPI Flash store for EFI variables.
* Add an efidebug ecpt sub-command to display the ECPT table
  and a unit test for the command.

Others:

* Add missing include string.h to make exception command build again.
* lib: uuid: add EBBR 2.1 conformance profile GUID

1 files changed, 42 insertions, 0 deletions

diff --git a/test/py/tests/test_efi_ecpt.py b/test/py/tests/test_efi_ecpt.py
new file mode 100644
index 00000000000..632a6b90bad
--- /dev/null
+++ b/test/py/tests/test_efi_ecpt.py
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+""" Unit test for the EFI Conformance Profiles Table (ECPT)
+"""
+
+import pytest
+
+
[email protected]('cmd_efidebug')
[email protected]('efi_ecpt')
+def test_efi_ecpt(ubman) -> None:
+    """ Unit test for the ECPT
+    This test assumes nothing about the ECPT contents, it just checks that the
+    ECPT table is there and that the efidebug ecpt command does not fail.
+
+    Args:
+        ubman -- U-Boot console
+    """
+    response = ubman.run_command('efidebug tables')
+    assert ('36122546-f7e7-4c8f-bd9b-eb8525b50c0b  '
+            'EFI Conformance Profiles Table') in response
+
+    response = ubman.run_command('efidebug ecpt')
+    assert 'Unknown command' not in response
+    assert 'Configure UEFI environment' not in response
+    assert 'Usage:' not in response
+    assert 'table missing' not in response
+
+
[email protected]('cmd_efidebug')
[email protected]('efi_ecpt')
[email protected]('efi_ebbr_2_1_conformance')
+def test_efi_ecpt_ebbr_2_1(ubman) -> None:
+    """ Unit test for the ECPT, with EBBR 2.1 profile
+    This test uses the efidebug ecpt command to dump the ECPT and check that
+    the EBBR 2.1 conformance profile is there.
+
+    Args:
+        ubman -- U-Boot console
+    """
+    response = ubman.run_command('efidebug ecpt')
+    assert ('cce33c35-74ac-4087-bce7-8b29b02eeb27  '
+            'EFI EBBR 2.1 Conformance Profile') in response