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From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Cornelia Huck <cohuck@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org,
	kvm@vger.kernel.org, David Hildenbrand <david@redhat.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Paolo Bonzini <pbonzini@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 v2] KVM: s390: wire up bpb feature
Date: Thu, 18 Jan 2018 11:09:50 +0100	[thread overview]
Message-ID: <f69c7130-171b-50cf-d295-1b8aca03b92d@de.ibm.com> (raw)
In-Reply-To: <20180118105916.68a1586c.cohuck@redhat.com>



On 01/18/2018 10:59 AM, Cornelia Huck wrote:
> On Wed, 17 Jan 2018 14:44:34 +0100
> Christian Borntraeger <borntraeger@de.ibm.com> wrote:
> 
>> The new firmware interfaces for branch prediction behaviour changes
>> are transparently available for the guest. Nevertheless, there is
>> new state attached that should be migrated and properly resetted.
>> Provide a mechanism for handling reset, migration and VSIE.
>>
>> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
>> ---
>> v1->v2: - review feedback from David
>> 	- rename seb(c) into bpb(c)
>>  arch/s390/include/asm/kvm_host.h |  3 ++-
>>  arch/s390/include/uapi/asm/kvm.h |  5 ++++-
>>  arch/s390/kvm/kvm-s390.c         | 12 ++++++++++++
>>  arch/s390/kvm/vsie.c             | 10 ++++++++++
>>  include/uapi/linux/kvm.h         |  1 +
>>  5 files changed, 29 insertions(+), 2 deletions(-)
> 
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>

Thanks
> 
> But I'd like to see some documentation (a line) for the new cap under
> Documentation/. However, this can be done as a separate update (we
> might be missing more).


Ok, I will work on a doc update patch.
Paolo, Radim, can you take this patch for 4.15?


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> 

  reply	other threads:[~2018-01-18 10:09 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-17  9:48 [PATCH 0/6] s390: improve speculative execution handling Martin Schwidefsky
2018-01-17  9:48 ` [PATCH 1/6] s390/alternative: use a copy of the facility bit mask Martin Schwidefsky
2018-01-17 13:54   ` David Hildenbrand
2018-01-17 14:24   ` Cornelia Huck
2018-01-17  9:48 ` [PATCH 2/6] s390: implement nospec_[load|ptr] Martin Schwidefsky
2018-01-17 12:41   ` Jiri Kosina
2018-01-17 14:52     ` Jon Masters
2018-01-17 13:58   ` David Hildenbrand
2018-01-17 14:04     ` Christian Borntraeger
2018-01-17  9:48 ` [PATCH 3/6] s390: add options to change branch prediction behaviour for the kernel Martin Schwidefsky
2018-01-18  9:52   ` Cornelia Huck
2018-01-19  4:53   ` QingFeng Hao
2018-01-17  9:48 ` [PATCH 4/6] s390: add system call to run tasks with modified branch prediction Martin Schwidefsky
2018-01-17 10:03   ` Florian Weimer
2018-01-17 10:05     ` Paolo Bonzini
2018-01-17 11:14     ` Christian Borntraeger
2018-01-17 11:50       ` Paolo Bonzini
2018-01-17 11:55       ` Martin Schwidefsky
2018-01-17 13:25         ` Heiko Carstens
2018-01-17  9:48 ` [PATCH 5/6] KVM: s390: wire up seb feature Martin Schwidefsky
2018-01-17 11:18   ` Christian Borntraeger
2018-01-17 11:22     ` Paolo Bonzini
2018-01-17 11:28       ` Christian Borntraeger
2018-01-17 11:29         ` Christian Borntraeger
2018-01-17 11:32           ` Paolo Bonzini
2018-01-17 11:33   ` David Hildenbrand
2018-01-17 11:39     ` Christian Borntraeger
2018-01-17 13:44   ` [PATCH v2] KVM: s390: wire up bpb feature Christian Borntraeger
2018-01-17 13:51     ` David Hildenbrand
2018-01-17 21:43       ` Christian Borntraeger
2018-01-18  6:27         ` Martin Schwidefsky
2018-01-18  9:59     ` Cornelia Huck
2018-01-18 10:09       ` Christian Borntraeger [this message]
2018-01-17  9:48 ` [PATCH 6/6] s390: scrub registers on kernel entry and KVM exit Martin Schwidefsky
2018-01-19  6:29   ` QingFeng Hao
2018-01-19  7:57     ` Christian Borntraeger
2018-01-19  8:27       ` QingFeng Hao
2018-01-17 12:00 ` [PATCH 0/6] s390: improve speculative execution handling Cornelia Huck
2018-01-17 12:05   ` Christian Borntraeger
2018-01-17 13:29 ` Greg Kroah-Hartman

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