From: Ilya Leoshkevich <iii@linux.ibm.com>
To: Alexander Gordeev <agordeev@linux.ibm.com>,
Alexander Potapenko <glider@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
David Rientjes <rientjes@google.com>,
Heiko Carstens <hca@linux.ibm.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Marco Elver <elver@google.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Pekka Enberg <penberg@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Vasily Gorbik <gor@linux.ibm.com>,
Vlastimil Babka <vbabka@suse.cz>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>,
Dmitry Vyukov <dvyukov@google.com>,
Hyeonggon Yoo <42.hyeyoo@gmail.com>,
kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-s390@vger.kernel.org,
linux-trace-kernel@vger.kernel.org,
Mark Rutland <mark.rutland@arm.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
Sven Schnelle <svens@linux.ibm.com>,
Ilya Leoshkevich <iii@linux.ibm.com>
Subject: [PATCH v3 19/34] s390: Turn off KMSAN for boot, vdso and purgatory
Date: Thu, 14 Dec 2023 00:24:39 +0100 [thread overview]
Message-ID: <20231213233605.661251-20-iii@linux.ibm.com> (raw)
In-Reply-To: <20231213233605.661251-1-iii@linux.ibm.com>
All other sanitizers are disabled for these components as well.
While at it, add a comment to boot and purgatory.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
arch/s390/boot/Makefile | 2 ++
arch/s390/kernel/vdso32/Makefile | 3 ++-
arch/s390/kernel/vdso64/Makefile | 3 ++-
arch/s390/purgatory/Makefile | 2 ++
4 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index c7c81e5f9218..fb10fcd21221 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -3,11 +3,13 @@
# Makefile for the linux s390-specific parts of the memory manager.
#
+# Tooling runtimes are unavailable and cannot be linked for early boot code
KCOV_INSTRUMENT := n
GCOV_PROFILE := n
UBSAN_SANITIZE := n
KASAN_SANITIZE := n
KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)
diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile
index caec7db6f966..7cbec6b0b11f 100644
--- a/arch/s390/kernel/vdso32/Makefile
+++ b/arch/s390/kernel/vdso32/Makefile
@@ -32,11 +32,12 @@ obj-y += vdso32_wrapper.o
targets += vdso32.lds
CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
-# Disable gcov profiling, ubsan and kasan for VDSO code
+# Disable gcov profiling, ubsan, kasan and kmsan for VDSO code
GCOV_PROFILE := n
UBSAN_SANITIZE := n
KASAN_SANITIZE := n
KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
# Force dependency (incbin is bad)
$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index e3c9085f8fa7..6f3252712f64 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -36,11 +36,12 @@ obj-y += vdso64_wrapper.o
targets += vdso64.lds
CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
-# Disable gcov profiling, ubsan and kasan for VDSO code
+# Disable gcov profiling, ubsan, kasan and kmsan for VDSO code
GCOV_PROFILE := n
UBSAN_SANITIZE := n
KASAN_SANITIZE := n
KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
# Force dependency (incbin is bad)
$(obj)/vdso64_wrapper.o : $(obj)/vdso64.so
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index 4e930f566878..4e421914e50f 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -15,11 +15,13 @@ CFLAGS_sha256.o := -D__DISABLE_EXPORTS -D__NO_FORTIFY
$(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE
$(call if_changed_rule,as_o_S)
+# Tooling runtimes are unavailable and cannot be linked for purgatory code
KCOV_INSTRUMENT := n
GCOV_PROFILE := n
UBSAN_SANITIZE := n
KASAN_SANITIZE := n
KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
--
2.43.0
next prev parent reply other threads:[~2023-12-13 23:36 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-13 23:24 [PATCH v3 00/34] kmsan: Enable on s390 Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 01/34] ftrace: Unpoison ftrace_regs in ftrace_ops_list_func() Ilya Leoshkevich
2024-01-02 15:17 ` Steven Rostedt
2024-06-12 15:37 ` Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 02/34] kmsan: Make the tests compatible with kmsan.panic=1 Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 03/34] kmsan: Disable KMSAN when DEFERRED_STRUCT_PAGE_INIT is enabled Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 04/34] kmsan: Increase the maximum store size to 4096 Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 05/34] kmsan: Fix is_bad_asm_addr() on arches with overlapping address spaces Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 06/34] kmsan: Fix kmsan_copy_to_user() " Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 07/34] kmsan: Remove a useless assignment from kmsan_vmap_pages_range_noflush() Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 08/34] kmsan: Remove an x86-specific #include from kmsan.h Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 09/34] kmsan: Expose kmsan_get_metadata() Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 10/34] kmsan: Export panic_on_kmsan Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 11/34] kmsan: Allow disabling KMSAN checks for the current task Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 12/34] kmsan: Support SLAB_POISON Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 13/34] kmsan: Use ALIGN_DOWN() in kmsan_get_metadata() Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 14/34] mm: slub: Let KMSAN access metadata Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 15/34] mm: slub: Unpoison the memchr_inv() return value Ilya Leoshkevich
2024-01-02 16:10 ` Vlastimil Babka
2023-12-13 23:24 ` [PATCH v3 16/34] mm: kfence: Disable KMSAN when checking the canary Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 17/34] lib/zlib: Unpoison DFLTCC output buffers Ilya Leoshkevich
2023-12-22 11:35 ` Alexander Potapenko
2023-12-13 23:24 ` [PATCH v3 18/34] kmsan: Accept ranges starting with 0 on s390 Ilya Leoshkevich
2023-12-13 23:24 ` Ilya Leoshkevich [this message]
2023-12-13 23:24 ` [PATCH v3 20/34] s390: Use a larger stack for KMSAN Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 21/34] s390/boot: Add the KMSAN runtime stub Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 22/34] s390/checksum: Add a KMSAN check Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 23/34] s390/cpacf: Unpoison the results of cpacf_trng() Ilya Leoshkevich
2024-01-02 14:34 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 24/34] s390/cpumf: Unpoison STCCTM output buffer Ilya Leoshkevich
2023-12-20 11:04 ` Alexander Potapenko
2024-01-02 14:38 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 25/34] s390/diag: Unpoison diag224() " Ilya Leoshkevich
2024-01-02 14:56 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 26/34] s390/ftrace: Unpoison ftrace_regs in kprobe_ftrace_handler() Ilya Leoshkevich
2024-01-02 14:56 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 27/34] s390/irqflags: Do not instrument arch_local_irq_*() with KMSAN Ilya Leoshkevich
2023-12-22 11:27 ` Alexander Potapenko
2024-01-02 15:01 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 28/34] s390/mm: Define KMSAN metadata for vmalloc and modules Ilya Leoshkevich
2023-12-21 12:14 ` Alexander Gordeev
2024-01-02 15:05 ` Heiko Carstens
2024-01-04 10:03 ` Alexander Gordeev
2024-01-04 11:34 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 29/34] s390/string: Add KMSAN support Ilya Leoshkevich
2024-01-02 15:05 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 30/34] s390/traps: Unpoison the kernel_stack_overflow()'s pt_regs Ilya Leoshkevich
2024-01-02 15:06 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 31/34] s390/uaccess: Add KMSAN support to put_user() and get_user() Ilya Leoshkevich
2023-12-13 23:24 ` [PATCH v3 32/34] s390/unwind: Disable KMSAN checks Ilya Leoshkevich
2024-01-02 15:09 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 33/34] s390: Implement the architecture-specific kmsan functions Ilya Leoshkevich
2023-12-20 11:27 ` Alexander Potapenko
2024-01-02 15:14 ` Heiko Carstens
2023-12-13 23:24 ` [PATCH v3 34/34] kmsan: Enable on s390 Ilya Leoshkevich
2024-01-02 15:15 ` Heiko Carstens
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