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From: Tony Krowiak <akrowiak@linux.ibm.com>
To: Cornelia Huck <cohuck@redhat.com>
Cc: Tony Krowiak <akrowiak@linux.vnet.ibm.com>,
	linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, freude@de.ibm.com, schwidefsky@de.ibm.com,
	heiko.carstens@de.ibm.com, borntraeger@de.ibm.com,
	kwankhede@nvidia.com, bjsdjshi@linux.vnet.ibm.com,
	pbonzini@redhat.com, alex.williamson@redhat.com,
	pmorel@linux.vnet.ibm.com, alifm@linux.vnet.ibm.com,
	mjrosato@linux.vnet.ibm.com, jjherne@linux.vnet.ibm.com,
	thuth@redhat.com, pasic@linux.vnet.ibm.com, berrange@redhat.com,
	fiuczy@linux.vnet.ibm.com, buendgen@de.ibm.com,
	frankja@linux.ibm.com
Subject: Re: [PATCH v9 10/22] s390: vfio-ap: sysfs interfaces to configure adapters
Date: Fri, 17 Aug 2018 09:23:26 -0400	[thread overview]
Message-ID: <6e933696-515c-0533-796b-ef75b8627c84@linux.ibm.com> (raw)
In-Reply-To: <20180816093015.19e54936.cohuck@redhat.com>

On 08/16/2018 03:30 AM, Cornelia Huck wrote:
> On Wed, 15 Aug 2018 12:59:35 -0400
> Tony Krowiak <akrowiak@linux.ibm.com> wrote:
>
>> On 08/15/2018 05:52 AM, Cornelia Huck wrote:
>>> On Mon, 13 Aug 2018 17:48:07 -0400
>>> Tony Krowiak <akrowiak@linux.vnet.ibm.com> wrote:
>>>> +/**
>>>> + * unassign_adapter_store
>>>> + *
>>>> + * @dev: the matrix device
>>>> + * @attr: a mediated matrix device attribute
>>>> + * @buf: a buffer containing the adapter ID (APID) to be assigned
>>>> + * @count: the number of bytes in @buf
>>>> + *
>>>> + * Parses the APID from @buf and unassigns it from the mediated matrix device.
>>>> + * The APID must be a valid value
>>> A valid value, but not necessarily assigned, right?
>> You are correct, if the APID is not assigned, then the corresponding bit
>> will be
>> cleared regardless. In a previous version, the functions failed if the
>> APID is
>> not assigned, but a colleague removed that check. I guess it makes sense
>> given
>> it really does not hurt anything to ask to unassign an APID that isn't
>> assigned
>> to begin with. Would you prefer I update the comment, or do you feel the
>> user
>> should be made aware of an attempt to unassign an APID that is not assigned?
> I think the code is fine; updating the comment would be good.

Will do.

>


  reply	other threads:[~2018-08-17 13:23 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-13 21:47 [PATCH v9 00/22] guest dedicated crypto adapters Tony Krowiak
2018-08-13 21:47 ` [PATCH v9 01/22] s390/zcrypt: Add ZAPQ inline function Tony Krowiak
2018-08-13 21:47 ` [PATCH v9 02/22] s390/zcrypt: Review inline assembler constraints Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 03/22] s390/zcrypt: Show load of cards and queues in sysfs Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 04/22] s390/zcrypt: Integrate ap_asm.h into include/asm/ap.h Tony Krowiak
2018-08-14  8:43   ` Cornelia Huck
2018-08-17 13:18     ` Tony Krowiak
2018-08-17 13:27       ` Cornelia Huck
2018-08-17 19:09         ` Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 05/22] KVM: s390: vsie: simulate VCPU SIE entry/exit Tony Krowiak
2018-08-14  8:50   ` Cornelia Huck
2018-08-14 12:46     ` Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 06/22] KVM: s390: introduce and use KVM_REQ_VSIE_RESTART Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 07/22] KVM: s390: refactor crypto initialization Tony Krowiak
2018-08-20 16:41   ` David Hildenbrand
2018-08-20 20:33     ` Tony Krowiak
2018-08-20 20:41       ` David Hildenbrand
2018-08-21 13:29         ` Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 08/22] s390: vfio-ap: base implementation of VFIO AP device driver Tony Krowiak
2018-08-14 10:42   ` Cornelia Huck
2018-08-14 23:30     ` Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 09/22] s390: vfio-ap: register matrix device with VFIO mdev framework Tony Krowiak
2018-08-14 11:19   ` Cornelia Huck
2018-08-15 16:51     ` Tony Krowiak
2018-08-16 16:24     ` Tony Krowiak
2018-08-17  8:43       ` Cornelia Huck
2018-08-17 19:02         ` Tony Krowiak
2018-09-06  8:49   ` Pierre Morel
2018-09-10 13:38     ` Tony Krowiak
2018-09-10 21:58       ` Halil Pasic
2018-08-13 21:48 ` [PATCH v9 10/22] s390: vfio-ap: sysfs interfaces to configure adapters Tony Krowiak
2018-08-15  9:52   ` Cornelia Huck
2018-08-15 16:59     ` Tony Krowiak
2018-08-16  7:30       ` Cornelia Huck
2018-08-17 13:23         ` Tony Krowiak [this message]
2018-08-13 21:48 ` [PATCH v9 11/22] s390: vfio-ap: sysfs interfaces to configure domains Tony Krowiak
2018-08-15 12:05   ` Cornelia Huck
2018-08-15 17:00     ` Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 12/22] s390: vfio-ap: sysfs interfaces to configure control domains Tony Krowiak
2018-08-20 14:23   ` Cornelia Huck
2018-08-20 16:43     ` Halil Pasic
2018-08-20 17:41     ` Tony Krowiak
2018-08-21 15:25       ` Cornelia Huck
2018-08-21 17:07         ` Tony Krowiak
2018-08-21 23:18           ` Halil Pasic
2018-08-22  9:42             ` Cornelia Huck
2018-08-22 10:43               ` Halil Pasic
2018-08-22 11:03               ` Pierre Morel
2018-08-22 15:11                 ` Christian Borntraeger
2018-08-22 15:34                   ` Pierre Morel
2018-08-22 15:48                     ` Christian Borntraeger
2018-08-22 15:53                       ` Pierre Morel
2018-08-22 17:11                       ` Halil Pasic
2018-08-22 19:16                         ` Tony Krowiak
2018-08-23  9:26                           ` Halil Pasic
2018-08-23 10:41                             ` Pierre Morel
2018-08-23 10:25                           ` Cornelia Huck
2018-08-23 10:43                             ` Pierre Morel
2018-08-23 11:31                               ` Cornelia Huck
2018-08-23 11:44                                 ` Pierre Morel
2018-08-23 14:16                             ` Tony Krowiak
2018-08-27  8:33                               ` Cornelia Huck
2018-08-27 13:47                                 ` Tony Krowiak
2018-08-27 13:51                                   ` Cornelia Huck
2018-08-27 15:39                                     ` Halil Pasic
2018-09-10 13:27                                     ` Tony Krowiak
2018-08-22 15:18               ` Tony Krowiak
2018-08-22 14:31             ` Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 13/22] s390: vfio-ap: sysfs interface to view matrix mdev matrix Tony Krowiak
2018-08-20 14:08   ` Cornelia Huck
2018-08-20 14:08     ` Cornelia Huck
2018-09-12 17:01     ` Tony Krowiak
2018-09-13  9:12       ` Halil Pasic
2018-08-13 21:48 ` [PATCH v9 14/22] KVM: s390: interfaces to clear CRYCB masks Tony Krowiak
2018-08-15 13:10   ` Cornelia Huck
2018-08-15 17:55     ` Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 15/22] s390: vfio-ap: implement mediated device open callback Tony Krowiak
2018-08-15 16:08   ` Cornelia Huck
2018-08-15 18:21     ` Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 16/22] s390: vfio-ap: implement VFIO_DEVICE_GET_INFO ioctl Tony Krowiak
2018-08-20 14:24   ` Cornelia Huck
2018-08-13 21:48 ` [PATCH v9 17/22] s390: vfio-ap: zeroize the AP queues Tony Krowiak
2018-08-15 16:24   ` Cornelia Huck
2018-08-15 20:36     ` Tony Krowiak
2018-08-17  9:34       ` Cornelia Huck
2018-08-13 21:48 ` [PATCH v9 18/22] s390: vfio-ap: implement VFIO_DEVICE_RESET ioctl Tony Krowiak
2018-08-15 16:38   ` Cornelia Huck
2018-08-15 21:05     ` Tony Krowiak
2018-08-17  9:38       ` Cornelia Huck
2018-08-17 19:03         ` Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 19/22] KVM: s390: Clear Crypto Control Block when using vSIE Tony Krowiak
2018-08-13 21:48 ` [PATCH v9 20/22] KVM: s390: Handling of Cypto control block in VSIE Tony Krowiak
2018-08-21  8:30   ` David Hildenbrand
2018-08-13 21:48 ` [PATCH v9 21/22] KVM: s390: CPU model support for AP virtualization Tony Krowiak
2018-08-20 14:26   ` Cornelia Huck
2018-08-21  8:03   ` David Hildenbrand
2018-08-22 11:19   ` David Hildenbrand
2018-08-22 11:24     ` David Hildenbrand
2018-08-22 20:16       ` Tony Krowiak
2018-08-23  7:44         ` David Hildenbrand
2018-08-23 10:00           ` Halil Pasic
2018-08-23 10:28             ` David Hildenbrand
2018-08-23 11:10               ` Pierre Morel
2018-08-23 11:12                 ` David Hildenbrand
2018-08-23 12:47                   ` Pierre Morel
2018-08-23 13:22                     ` Halil Pasic
2018-08-23 13:38                       ` David Hildenbrand
2018-08-23 14:59                         ` Pierre Morel
2018-08-23 17:35                           ` Tony Krowiak
2018-08-23 17:40                             ` David Hildenbrand
2018-08-24 10:28                               ` Halil Pasic
2018-08-22 14:33     ` Pierre Morel
2018-08-22 15:04       ` David Hildenbrand
2018-08-22 15:50         ` Pierre Morel
2018-08-22 16:57           ` David Hildenbrand
2018-08-22 21:05             ` Tony Krowiak
2018-08-23  7:42               ` David Hildenbrand
2018-08-23  7:42                 ` David Hildenbrand
2018-08-22 20:54     ` Tony Krowiak
2018-08-23  7:48       ` David Hildenbrand
2018-08-23  8:24         ` Cornelia Huck
2018-09-12 17:42           ` Tony Krowiak
2018-09-17  7:57             ` David Hildenbrand
2018-08-23  8:26         ` Pierre Morel
2018-08-13 21:48 ` [PATCH v9 22/22] s390: doc: detailed specifications " Tony Krowiak
2018-08-20 16:03   ` Cornelia Huck
2018-08-20 20:16     ` Tony Krowiak
2018-08-21 16:13       ` Cornelia Huck
2018-08-21 16:13         ` Cornelia Huck
2018-08-21 19:21         ` Tony Krowiak
2018-08-21 18:54       ` Halil Pasic
2018-08-22  7:38         ` Cornelia Huck
2018-08-21  9:00     ` Harald Freudenberger
2018-08-21 15:53       ` Cornelia Huck
2018-08-22  7:04         ` Harald Freudenberger
2018-08-22 10:09           ` Cornelia Huck
2018-08-22 10:13         ` Harald Freudenberger
2018-08-22 10:45           ` Halil Pasic
2018-08-22 10:19 ` [PATCH v9 00/22] guest dedicated crypto adapters Cornelia Huck
2018-08-22 10:58   ` Pierre Morel
2018-08-22 18:59   ` Tony Krowiak

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