mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
synced 2026-04-23 05:56:14 -04:00
a003bdb9ec
Introduce a kexec-based selftest, luo_kexec_simple, to validate the end-to-end lifecycle of a Live Update Orchestrator session across a reboot. While existing tests verify the uAPI in a pre-reboot context, this test ensures that the core functionality—preserving state via Kexec Handover and restoring it in a new kernel—works as expected. The test operates in two stages, managing its state across the reboot by preserving a dedicated "state session" containing a memfd. This mechanism dogfoods the LUO feature itself for state tracking, making the test self-contained. The test validates the following sequence: Stage 1 (Pre-kexec): - Creates a test session (test-session). - Creates and preserves a memfd with a known data pattern into the test session. - Creates the state-tracking session to signal progression to Stage 2. - Executes a kexec reboot via a helper script. Stage 2 (Post-kexec): - Retrieves the state-tracking session to confirm it is in the post-reboot stage. - Retrieves the preserved test session. - Restores the memfd from the test session and verifies its contents match the original data pattern written in Stage 1. - Finalizes both the test and state sessions to ensure a clean teardown. The test relies on a helper script (do_kexec.sh) to perform the reboot and a shared utility library (luo_test_utils.c) for common LUO operations, keeping the main test logic clean and focused. Link: https://lkml.kernel.org/r/20251125165850.3389713-18-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Tested-by: David Matlack <dmatlack@google.com> Cc: Aleksander Lobakin <aleksander.lobakin@intel.com> Cc: Alexander Graf <graf@amazon.com> Cc: Alice Ryhl <aliceryhl@google.com> Cc: Andriy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: anish kumar <yesanishhere@gmail.com> Cc: Anna Schumaker <anna.schumaker@oracle.com> Cc: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Borislav Betkov <bp@alien8.de> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Chen Ridong <chenridong@huawei.com> Cc: Chris Li <chrisl@kernel.org> Cc: Christian Brauner <brauner@kernel.org> Cc: Daniel Wagner <wagi@kernel.org> Cc: Danilo Krummrich <dakr@kernel.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: David Jeffery <djeffery@redhat.com> Cc: David Rientjes <rientjes@google.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guixin Liu <kanie@linux.alibaba.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Jann Horn <jannh@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Joanthan Cameron <Jonathan.Cameron@huawei.com> Cc: Joel Granados <joel.granados@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Lennart Poettering <lennart@poettering.net> Cc: Leon Romanovsky <leon@kernel.org> Cc: Leon Romanovsky <leonro@nvidia.com> Cc: Lukas Wunner <lukas@wunner.de> Cc: Marc Rutland <mark.rutland@arm.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Matthew Maurer <mmaurer@google.com> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Myugnjoo Ham <myungjoo.ham@samsung.com> Cc: Parav Pandit <parav@nvidia.com> Cc: Pratyush Yadav <pratyush@kernel.org> Cc: Pratyush Yadav <ptyadav@amazon.de> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Saeed Mahameed <saeedm@nvidia.com> Cc: Samiullah Khawaja <skhawaja@google.com> Cc: Song Liu <song@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Stuart Hayes <stuart.w.hayes@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleinxer <tglx@linutronix.de> Cc: Thomas Weißschuh <linux@weissschuh.net> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: William Tu <witu@nvidia.com> Cc: Yoann Congal <yoann.congal@smile.fr> Cc: Zijun Hu <quic_zijuhu@quicinc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
34 lines
879 B
Makefile
34 lines
879 B
Makefile
# SPDX-License-Identifier: GPL-2.0-only
|
|
|
|
LIB_C += luo_test_utils.c
|
|
|
|
TEST_GEN_PROGS += liveupdate
|
|
|
|
TEST_GEN_PROGS_EXTENDED += luo_kexec_simple
|
|
|
|
TEST_FILES += do_kexec.sh
|
|
|
|
include ../lib.mk
|
|
|
|
CFLAGS += $(KHDR_INCLUDES)
|
|
CFLAGS += -Wall -O2 -Wno-unused-function
|
|
CFLAGS += -MD
|
|
|
|
LIB_O := $(patsubst %.c, $(OUTPUT)/%.o, $(LIB_C))
|
|
TEST_O := $(patsubst %, %.o, $(TEST_GEN_PROGS))
|
|
TEST_O += $(patsubst %, %.o, $(TEST_GEN_PROGS_EXTENDED))
|
|
|
|
TEST_DEP_FILES := $(patsubst %.o, %.d, $(LIB_O))
|
|
TEST_DEP_FILES += $(patsubst %.o, %.d, $(TEST_O))
|
|
-include $(TEST_DEP_FILES)
|
|
|
|
$(LIB_O): $(OUTPUT)/%.o: %.c
|
|
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
|
|
|
|
$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/%: %.o $(LIB_O)
|
|
$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< $(LIB_O) $(LDLIBS) -o $@
|
|
|
|
EXTRA_CLEAN += $(LIB_O)
|
|
EXTRA_CLEAN += $(TEST_O)
|
|
EXTRA_CLEAN += $(TEST_DEP_FILES)
|