From: David Matlack <dmatlack@google.com>
To: Alex Williamson <alex@shazbot.org>
Cc: "Adithya Jayachandran" <ajayachandra@nvidia.com>,
"Alexander Graf" <graf@amazon.com>,
"Alex Mastro" <amastro@fb.com>,
"Alistair Popple" <apopple@nvidia.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Ankit Agrawal" <ankita@nvidia.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Chris Li" <chrisl@kernel.org>,
"David Matlack" <dmatlack@google.com>,
"David Rientjes" <rientjes@google.com>,
"Jacob Pan" <jacob.pan@linux.microsoft.com>,
"Jason Gunthorpe" <jgg@nvidia.com>,
"Jason Gunthorpe" <jgg@ziepe.ca>,
"Jonathan Corbet" <corbet@lwn.net>,
"Josh Hilke" <jrhilke@google.com>,
"Kevin Tian" <kevin.tian@intel.com>,
kexec@lists.infradead.org, kvm@vger.kernel.org,
"Leon Romanovsky" <leon@kernel.org>,
"Leon Romanovsky" <leonro@nvidia.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-mm@kvack.org,
linux-pci@vger.kernel.org, "Lukas Wunner" <lukas@wunner.de>,
"Michał Winiarski" <michal.winiarski@intel.com>,
"Mike Rapoport" <rppt@kernel.org>,
"Parav Pandit" <parav@nvidia.com>,
"Pasha Tatashin" <pasha.tatashin@soleen.com>,
"Pranjal Shrivastava" <praan@google.com>,
"Pratyush Yadav" <pratyush@kernel.org>,
"Raghavendra Rao Ananta" <rananta@google.com>,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Saeed Mahameed" <saeedm@nvidia.com>,
"Samiullah Khawaja" <skhawaja@google.com>,
"Shuah Khan" <skhan@linuxfoundation.org>,
"Thomas Hellström" <thomas.hellstrom@linux.intel.com>,
"Tomita Moeko" <tomitamoeko@gmail.com>,
"Vipin Sharma" <vipinsh@google.com>,
"Vivek Kasireddy" <vivek.kasireddy@intel.com>,
"William Tu" <witu@nvidia.com>, "Yi Liu" <yi.l.liu@intel.com>,
"Zhu Yanjun" <yanjun.zhu@linux.dev>
Subject: [PATCH v2 12/22] selftests/liveupdate: Move luo_test_utils.* into a reusable library
Date: Thu, 29 Jan 2026 21:24:59 +0000 [thread overview]
Message-ID: <20260129212510.967611-13-dmatlack@google.com> (raw)
In-Reply-To: <20260129212510.967611-1-dmatlack@google.com>
From: Vipin Sharma <vipinsh@google.com>
Move luo_test_utils.[ch] into a lib/ directory and pull the rules to
build them out into a separate make script. This will enable these
utilities to be also built by and used within other selftests (such as
VFIO) in subsequent commits.
No functional change intended.
Signed-off-by: Vipin Sharma <vipinsh@google.com>
Co-developed-by: David Matlack <dmatlack@google.com>
Signed-off-by: David Matlack <dmatlack@google.com>
---
tools/testing/selftests/liveupdate/.gitignore | 1 +
tools/testing/selftests/liveupdate/Makefile | 14 ++++---------
.../include/libliveupdate.h} | 8 ++++----
.../selftests/liveupdate/lib/libliveupdate.mk | 20 +++++++++++++++++++
.../{luo_test_utils.c => lib/liveupdate.c} | 2 +-
.../selftests/liveupdate/luo_kexec_simple.c | 2 +-
.../selftests/liveupdate/luo_multi_session.c | 2 +-
7 files changed, 32 insertions(+), 17 deletions(-)
rename tools/testing/selftests/liveupdate/{luo_test_utils.h => lib/include/libliveupdate.h} (87%)
create mode 100644 tools/testing/selftests/liveupdate/lib/libliveupdate.mk
rename tools/testing/selftests/liveupdate/{luo_test_utils.c => lib/liveupdate.c} (99%)
diff --git a/tools/testing/selftests/liveupdate/.gitignore b/tools/testing/selftests/liveupdate/.gitignore
index 661827083ab6..18a0c7036cf3 100644
--- a/tools/testing/selftests/liveupdate/.gitignore
+++ b/tools/testing/selftests/liveupdate/.gitignore
@@ -3,6 +3,7 @@
!/**/
!*.c
!*.h
+!*.mk
!*.sh
!.gitignore
!config
diff --git a/tools/testing/selftests/liveupdate/Makefile b/tools/testing/selftests/liveupdate/Makefile
index 080754787ede..a060cc21f27f 100644
--- a/tools/testing/selftests/liveupdate/Makefile
+++ b/tools/testing/selftests/liveupdate/Makefile
@@ -1,7 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
-LIB_C += luo_test_utils.c
-
TEST_GEN_PROGS += liveupdate
TEST_GEN_PROGS_EXTENDED += luo_kexec_simple
@@ -10,25 +8,21 @@ TEST_GEN_PROGS_EXTENDED += luo_multi_session
TEST_FILES += do_kexec.sh
include ../lib.mk
+include lib/libliveupdate.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, $(LIBLIVEUPDATE_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 $@
+$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/%: %.o $(LIBLIVEUPDATE_O)
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< $(LIBLIVEUPDATE_O) $(LDLIBS) -o $@
-EXTRA_CLEAN += $(LIB_O)
EXTRA_CLEAN += $(TEST_O)
EXTRA_CLEAN += $(TEST_DEP_FILES)
diff --git a/tools/testing/selftests/liveupdate/luo_test_utils.h b/tools/testing/selftests/liveupdate/lib/include/libliveupdate.h
similarity index 87%
rename from tools/testing/selftests/liveupdate/luo_test_utils.h
rename to tools/testing/selftests/liveupdate/lib/include/libliveupdate.h
index 90099bf49577..4390a2737930 100644
--- a/tools/testing/selftests/liveupdate/luo_test_utils.h
+++ b/tools/testing/selftests/liveupdate/lib/include/libliveupdate.h
@@ -7,13 +7,13 @@
* Utility functions for LUO kselftests.
*/
-#ifndef LUO_TEST_UTILS_H
-#define LUO_TEST_UTILS_H
+#ifndef SELFTESTS_LIVEUPDATE_LIB_LIVEUPDATE_H
+#define SELFTESTS_LIVEUPDATE_LIB_LIVEUPDATE_H
#include <errno.h>
#include <string.h>
#include <linux/liveupdate.h>
-#include "../kselftest.h"
+#include "../../../kselftest.h"
#define LUO_DEVICE "/dev/liveupdate"
@@ -41,4 +41,4 @@ typedef void (*luo_test_stage2_fn)(int luo_fd, int state_session_fd);
int luo_test(int argc, char *argv[], const char *state_session_name,
luo_test_stage1_fn stage1, luo_test_stage2_fn stage2);
-#endif /* LUO_TEST_UTILS_H */
+#endif /* SELFTESTS_LIVEUPDATE_LIB_LIVEUPDATE_H */
diff --git a/tools/testing/selftests/liveupdate/lib/libliveupdate.mk b/tools/testing/selftests/liveupdate/lib/libliveupdate.mk
new file mode 100644
index 000000000000..fffd95b085b6
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/lib/libliveupdate.mk
@@ -0,0 +1,20 @@
+include $(top_srcdir)/scripts/subarch.include
+ARCH ?= $(SUBARCH)
+
+LIBLIVEUPDATE_SRCDIR := $(selfdir)/liveupdate/lib
+
+LIBLIVEUPDATE_C := liveupdate.c
+
+LIBLIVEUPDATE_OUTPUT := $(OUTPUT)/libliveupdate
+
+LIBLIVEUPDATE_O := $(patsubst %.c, $(LIBLIVEUPDATE_OUTPUT)/%.o, $(LIBLIVEUPDATE_C))
+
+LIBLIVEUPDATE_O_DIRS := $(shell dirname $(LIBLIVEUPDATE_O) | uniq)
+$(shell mkdir -p $(LIBLIVEUPDATE_O_DIRS))
+
+CFLAGS += -I$(LIBLIVEUPDATE_SRCDIR)/include
+
+$(LIBLIVEUPDATE_O): $(LIBLIVEUPDATE_OUTPUT)/%.o : $(LIBLIVEUPDATE_SRCDIR)/%.c
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+EXTRA_CLEAN += $(LIBLIVEUPDATE_OUTPUT)
diff --git a/tools/testing/selftests/liveupdate/luo_test_utils.c b/tools/testing/selftests/liveupdate/lib/liveupdate.c
similarity index 99%
rename from tools/testing/selftests/liveupdate/luo_test_utils.c
rename to tools/testing/selftests/liveupdate/lib/liveupdate.c
index 3c8721c505df..60121873f685 100644
--- a/tools/testing/selftests/liveupdate/luo_test_utils.c
+++ b/tools/testing/selftests/liveupdate/lib/liveupdate.c
@@ -21,7 +21,7 @@
#include <errno.h>
#include <stdarg.h>
-#include "luo_test_utils.h"
+#include <libliveupdate.h>
int luo_open_device(void)
{
diff --git a/tools/testing/selftests/liveupdate/luo_kexec_simple.c b/tools/testing/selftests/liveupdate/luo_kexec_simple.c
index d7ac1f3dc4cb..786ac93b9ae3 100644
--- a/tools/testing/selftests/liveupdate/luo_kexec_simple.c
+++ b/tools/testing/selftests/liveupdate/luo_kexec_simple.c
@@ -8,7 +8,7 @@
* across a single kexec reboot.
*/
-#include "luo_test_utils.h"
+#include <libliveupdate.h>
#define TEST_SESSION_NAME "test-session"
#define TEST_MEMFD_TOKEN 0x1A
diff --git a/tools/testing/selftests/liveupdate/luo_multi_session.c b/tools/testing/selftests/liveupdate/luo_multi_session.c
index 0ee2d795beef..aac24a5f5ce3 100644
--- a/tools/testing/selftests/liveupdate/luo_multi_session.c
+++ b/tools/testing/selftests/liveupdate/luo_multi_session.c
@@ -9,7 +9,7 @@
* files.
*/
-#include "luo_test_utils.h"
+#include <libliveupdate.h>
#define SESSION_EMPTY_1 "multi-test-empty-1"
#define SESSION_EMPTY_2 "multi-test-empty-2"
--
2.53.0.rc1.225.gd81095ad13-goog
next prev parent reply other threads:[~2026-01-29 21:26 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-29 21:24 [PATCH v2 00/22] vfio/pci: Base Live Update support for VFIO device files David Matlack
2026-01-29 21:24 ` [PATCH v2 01/22] liveupdate: Export symbols needed by modules David Matlack
2026-01-29 21:24 ` [PATCH v2 02/22] PCI: Add API to track PCI devices preserved across Live Update David Matlack
2026-02-01 6:38 ` Zhu Yanjun
2026-02-02 18:14 ` David Matlack
2026-02-04 0:10 ` Yanjun.Zhu
2026-02-20 19:03 ` David Matlack
2026-01-29 21:24 ` [PATCH v2 03/22] PCI: Inherit bus numbers from previous kernel during " David Matlack
2026-01-29 21:24 ` [PATCH v2 04/22] vfio/pci: Register a file handler with Live Update Orchestrator David Matlack
2026-02-06 22:37 ` Yanjun.Zhu
2026-02-06 23:14 ` David Matlack
2026-01-29 21:24 ` [PATCH v2 05/22] vfio/pci: Preserve vfio-pci device files across Live Update David Matlack
2026-01-29 21:24 ` [PATCH v2 06/22] vfio/pci: Retrieve preserved device files after " David Matlack
2026-01-29 21:24 ` [PATCH v2 07/22] vfio/pci: Notify PCI subsystem about devices preserved across " David Matlack
2026-01-29 21:24 ` [PATCH v2 08/22] vfio: Enforce preserved devices are retrieved via LIVEUPDATE_SESSION_RETRIEVE_FD David Matlack
2026-01-29 21:24 ` [PATCH v2 09/22] vfio/pci: Store incoming Live Update state in struct vfio_pci_core_device David Matlack
2026-01-29 21:24 ` [PATCH v2 10/22] vfio/pci: Skip reset of preserved device after Live Update David Matlack
2026-01-29 22:21 ` Jacob Pan
2026-01-29 22:33 ` David Matlack
2026-01-30 0:31 ` Jacob Pan
2026-01-29 21:24 ` [PATCH v2 11/22] docs: liveupdate: Document VFIO device file preservation David Matlack
2026-01-29 21:24 ` David Matlack [this message]
2026-01-29 21:25 ` [PATCH v2 13/22] selftests/liveupdate: Add helpers to preserve/retrieve FDs David Matlack
2026-01-29 21:25 ` [PATCH v2 14/22] vfio: selftests: Build liveupdate library in VFIO selftests David Matlack
2026-01-29 21:25 ` [PATCH v2 15/22] vfio: selftests: Add Makefile support for TEST_GEN_PROGS_EXTENDED David Matlack
2026-01-29 21:25 ` [PATCH v2 16/22] vfio: selftests: Add vfio_pci_liveupdate_uapi_test David Matlack
2026-01-29 21:25 ` [PATCH v2 17/22] vfio: selftests: Initialize vfio_pci_device using a VFIO cdev FD David Matlack
2026-01-29 21:25 ` [PATCH v2 18/22] vfio: selftests: Add vfio_pci_liveupdate_kexec_test David Matlack
2026-01-29 21:25 ` [PATCH v2 19/22] vfio: selftests: Expose iommu_modes to tests David Matlack
2026-01-29 21:25 ` [PATCH v2 20/22] vfio: selftests: Expose low-level helper routines for setting up struct vfio_pci_device David Matlack
2026-01-29 21:25 ` [PATCH v2 21/22] vfio: selftests: Verify that opening VFIO device fails during Live Update David Matlack
2026-01-29 21:25 ` [PATCH v2 22/22] vfio: selftests: Add continuous DMA to vfio_pci_liveupdate_kexec_test David Matlack
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260129212510.967611-13-dmatlack@google.com \
--to=dmatlack@google.com \
--cc=ajayachandra@nvidia.com \
--cc=akpm@linux-foundation.org \
--cc=alex@shazbot.org \
--cc=amastro@fb.com \
--cc=ankita@nvidia.com \
--cc=apopple@nvidia.com \
--cc=bhelgaas@google.com \
--cc=chrisl@kernel.org \
--cc=corbet@lwn.net \
--cc=graf@amazon.com \
--cc=jacob.pan@linux.microsoft.com \
--cc=jgg@nvidia.com \
--cc=jgg@ziepe.ca \
--cc=jrhilke@google.com \
--cc=kevin.tian@intel.com \
--cc=kexec@lists.infradead.org \
--cc=kvm@vger.kernel.org \
--cc=leon@kernel.org \
--cc=leonro@nvidia.com \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-pci@vger.kernel.org \
--cc=lukas@wunner.de \
--cc=michal.winiarski@intel.com \
--cc=parav@nvidia.com \
--cc=pasha.tatashin@soleen.com \
--cc=praan@google.com \
--cc=pratyush@kernel.org \
--cc=rananta@google.com \
--cc=rientjes@google.com \
--cc=rodrigo.vivi@intel.com \
--cc=rppt@kernel.org \
--cc=saeedm@nvidia.com \
--cc=skhan@linuxfoundation.org \
--cc=skhawaja@google.com \
--cc=thomas.hellstrom@linux.intel.com \
--cc=tomitamoeko@gmail.com \
--cc=vipinsh@google.com \
--cc=vivek.kasireddy@intel.com \
--cc=witu@nvidia.com \
--cc=yanjun.zhu@linux.dev \
--cc=yi.l.liu@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox