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Wed, 13 Dec 2023 23:36:39 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8151520040; Wed, 13 Dec 2023 23:36:39 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 111A120043; Wed, 13 Dec 2023 23:36:38 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.171.70.156]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 13 Dec 2023 23:36:37 +0000 (GMT) From: Ilya Leoshkevich To: Alexander Gordeev , Alexander Potapenko , Andrew Morton , Christoph Lameter , David Rientjes , Heiko Carstens , Joonsoo Kim , Marco Elver , Masami Hiramatsu , Pekka Enberg , Steven Rostedt , Vasily Gorbik , Vlastimil Babka Cc: Christian Borntraeger , Dmitry Vyukov , 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 , Roman Gushchin , Sven Schnelle , Ilya Leoshkevich Subject: [PATCH v3 19/34] s390: Turn off KMSAN for boot, vdso and purgatory Date: Thu, 14 Dec 2023 00:24:39 +0100 Message-ID: <20231213233605.661251-20-iii@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231213233605.661251-1-iii@linux.ibm.com> References: <20231213233605.661251-1-iii@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: PLExDOrLrxMWM3bk6s7GZrTHSzR8vYyL X-Proofpoint-ORIG-GUID: Fk9-MI15mlYrzZBW50f87CcP6jmktpZ6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-13_14,2023-12-13_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 impostorscore=0 clxscore=1015 adultscore=0 phishscore=0 mlxscore=0 bulkscore=0 suspectscore=0 spamscore=0 mlxlogscore=736 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2312130167 X-Rspamd-Queue-Id: 0696D18000B X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: oujkgh5yajbh1g5awsfaq6b937smyhgj X-HE-Tag: 1702510611-487741 X-HE-Meta: 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 l72DFakr O3aL2O67hm4c8IeTUcp962ifZu6PrgsrYFJ9n8L5kUCdyuAnCppDON3DWjbPvb0hqVUIHIqAEdi7xOrYjXS6rDewa7hWcc7jiTkGVzRWkaPGmEpfSAltYtGmKPRR/gS3EnhXLky3Uh680kyZVln7ZjhFhJCyHn8Wk0A+igkB2HVSU4feZH81IYvEnON2tNYI7I+WhpHoxbnesWjr3U60D6tr3vrz8WUvh3bDsx3qDtjlGBDOgSsKMSsHWHj8mG+SFJiZI8N5BeY9U+vmI8C7cQ+VekcnPSNT/16uJ1Dw863QvRa8qvTt7GGPfv0PM3acuPnIgd9RUexf4lBI= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000161, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: All other sanitizers are disabled for these components as well. While at it, add a comment to boot and purgatory. Reviewed-by: Alexander Gordeev Reviewed-by: Alexander Potapenko Signed-off-by: Ilya Leoshkevich --- 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