From: Steffen Eiden <seiden@linux.ibm.com>
To: Heiko Carstens <hca@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Cc: nrb@linux.ibm.com
Subject: [PATCH 0/3] s390/cpufeature: rework to allow different types of cpufeatures
Date: Tue, 12 Jul 2022 12:52:17 +0200 [thread overview]
Message-ID: <20220712105220.325010-1-seiden@linux.ibm.com> (raw)
Currently the s390 implementaion of cpufeature is limited to elf_hwcap
bits. Using these to automatically load modules also exposes this
cpufeature to userspace which, sometimes is not intended.
Therefore, rework the s390-cpufeature implementation to allow for
various cpu feature indications, which is not only limited to hwcap bits.
Add a new type to allow facilities to be a cpufeature without using
hwcap bits that expose this feature to userspace.
Load uvdevice when facility 158 is present.
Heiko Carstens (1):
s390/cpufeature: allow for facility bits
Steffen Eiden (2):
s390/cpufeature: rework to allow more than only hwcap bits
s390/uvdevice: autoload module based on CPU facility
arch/s390/crypto/aes_s390.c | 2 +-
arch/s390/crypto/chacha-glue.c | 2 +-
arch/s390/crypto/crc32-vx.c | 2 +-
arch/s390/crypto/des_s390.c | 2 +-
arch/s390/crypto/ghash_s390.c | 2 +-
arch/s390/crypto/prng.c | 2 +-
arch/s390/crypto/sha1_s390.c | 2 +-
arch/s390/crypto/sha256_s390.c | 2 +-
arch/s390/crypto/sha3_256_s390.c | 2 +-
arch/s390/crypto/sha3_512_s390.c | 2 +-
arch/s390/crypto/sha512_s390.c | 2 +-
arch/s390/include/asm/cpufeature.h | 44 +++++++++++++-------
arch/s390/kernel/Makefile | 2 +-
arch/s390/kernel/cpufeature.c | 66 ++++++++++++++++++++++++++++++
arch/s390/kernel/processor.c | 10 -----
drivers/char/hw_random/s390-trng.c | 2 +-
drivers/s390/char/uvdevice.c | 5 +--
drivers/s390/crypto/pkey_api.c | 2 +-
18 files changed, 111 insertions(+), 42 deletions(-)
create mode 100644 arch/s390/kernel/cpufeature.c
--
2.35.3
next reply other threads:[~2022-07-12 10:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-12 10:52 Steffen Eiden [this message]
2022-07-12 10:52 ` [PATCH 1/3] s390/cpufeature: rework to allow more than only hwcap bits Steffen Eiden
2022-07-12 11:56 ` Steffen Eiden
2022-07-12 16:46 ` Claudio Imbrenda
2022-07-12 19:27 ` Heiko Carstens
2022-07-12 19:25 ` Heiko Carstens
2022-07-13 8:32 ` Steffen Eiden
2022-07-14 10:52 ` Heiko Carstens
2022-07-15 8:03 ` Hendrik Brueckner
2022-07-12 10:52 ` [PATCH 2/3] s390/cpufeature: allow for facility bits Steffen Eiden
2022-07-12 16:50 ` Claudio Imbrenda
2022-07-12 10:52 ` [PATCH 3/3] s390/uvdevice: autoload module based on CPU facility Steffen Eiden
2022-07-12 16:49 ` Claudio Imbrenda
2022-07-13 8:39 ` Steffen Eiden
2022-07-13 9:16 ` Claudio Imbrenda
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