From: Martin Schwidefsky <schwidefsky@de.ibm.com>
To: Cornelia Huck <cohuck@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org,
kvm@vger.kernel.org, Heiko Carstens <heiko.carstens@de.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Paolo Bonzini <pbonzini@redhat.com>,
David Hildenbrand <david@redhat.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jon Masters <jcm@redhat.com>, Marcus Meissner <meissner@suse.de>,
Jiri Kosina <jkosina@suse.cz>
Subject: Re: [PATCH 2/5] s390/alternative: use a copy of the facility bit mask
Date: Tue, 23 Jan 2018 15:40:06 +0100 [thread overview]
Message-ID: <20180123154006.14fb7ce0@mschwideX1> (raw)
In-Reply-To: <20180123145947.72bb1cd2.cohuck@redhat.com>
On Tue, 23 Jan 2018 14:59:47 +0100
Cornelia Huck <cohuck@redhat.com> wrote:
> On Tue, 23 Jan 2018 14:07:02 +0100
> Martin Schwidefsky <schwidefsky@de.ibm.com> wrote:
>
> > To be able to switch off specific CPU alternatives with kernel parameters
> > make a copy of the facility bit mask provided by STFLE and use the copy
> > for the decision to apply an alternative.
> >
> > Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
> > ---
> > arch/s390/include/asm/facility.h | 18 ++++++++++++++++++
> > arch/s390/include/asm/lowcore.h | 3 ++-
> > arch/s390/kernel/alternative.c | 3 ++-
> > arch/s390/kernel/early.c | 3 +++
> > arch/s390/kernel/setup.c | 4 +++-
> > arch/s390/kernel/smp.c | 4 +++-
> > 6 files changed, 31 insertions(+), 4 deletions(-)
>
> You have dropped various r-bs (including mine). Has this patch been
> changed? (Doesn't look like it.)
Added your and Davids r-b to patch #2, as well as your a-b to patch #4.
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
next prev parent reply other threads:[~2018-01-23 14:40 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-23 13:07 [RFC][PATCH 0/5] s390: improve speculative execution handling v2 Martin Schwidefsky
2018-01-23 13:07 ` [PATCH 1/5] prctl: add PR_ISOLATE_BP process control Martin Schwidefsky
2018-01-23 17:07 ` Dominik Brodowski
2018-01-24 6:29 ` Martin Schwidefsky
2018-01-24 8:37 ` Avoiding information leaks between users and between processes by default? [Was: : [PATCH 1/5] prctl: add PR_ISOLATE_BP process control] Dominik Brodowski
2018-01-24 9:24 ` David Woodhouse
2018-01-24 11:15 ` Pavel Machek
2018-01-24 12:48 ` Martin Schwidefsky
2018-01-24 19:01 ` Pavel Machek
2018-01-24 20:46 ` Alan Cox
2018-01-29 13:14 ` Pavel Machek
2018-01-29 20:12 ` Alan Cox
2018-01-24 15:42 ` Alan Cox
2018-01-24 8:08 ` [PATCH 1/5] prctl: add PR_ISOLATE_BP process control Christian Borntraeger
2018-01-23 13:07 ` [PATCH 2/5] s390/alternative: use a copy of the facility bit mask Martin Schwidefsky
2018-01-23 13:59 ` Cornelia Huck
2018-01-23 14:40 ` Martin Schwidefsky [this message]
2018-01-23 15:04 ` Cornelia Huck
2018-01-23 13:07 ` [PATCH 3/5] s390: add options to change branch prediction behaviour for the kernel Martin Schwidefsky
2018-01-23 13:07 ` [PATCH 4/5] s390: define ISOLATE_BP to run tasks with modified branch prediction Martin Schwidefsky
2018-01-23 14:21 ` Christian Borntraeger
2018-01-23 20:32 ` Radim Krčmář
2018-01-24 6:36 ` Martin Schwidefsky
2018-01-24 11:50 ` Radim Krčmář
2018-01-23 13:07 ` [PATCH 5/5] s390: scrub registers on kernel entry and KVM exit Martin Schwidefsky
2018-01-23 13:09 ` Christian Borntraeger
2018-01-23 14:32 ` Martin Schwidefsky
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