From: "Jason J. Herne" <jjherne@linux.ibm.com>
To: Tony Krowiak <akrowiak@linux.ibm.com>,
linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org
Cc: freude@linux.ibm.com, borntraeger@de.ibm.com, cohuck@redhat.com,
mjrosato@linux.ibm.com, pasic@linux.ibm.com,
alex.williamson@redhat.com, kwankhede@nvidia.com,
fiuczy@linux.ibm.com
Subject: Re: [PATCH v19 05/20] s390/vfio-ap: refresh guest's APCB by filtering AP resources assigned to mdev
Date: Mon, 16 May 2022 13:50:48 -0400 [thread overview]
Message-ID: <6720e18e-0638-7f2f-533e-beca8a990404@linux.ibm.com> (raw)
In-Reply-To: <62668577-bf0c-eda5-56a0-9ca56e5f9ce6@linux.ibm.com>
On 5/16/22 13:13, Tony Krowiak wrote:
>
>
> On 5/16/22 12:36 PM, Jason J. Herne wrote:
>> On 4/4/22 18:10, Tony Krowiak wrote:
>>> |@@ -1306,8 +1392,6 @@ static int vfio_ap_mdev_set_kvm(struct ap_matrix_mdev
>>> *matrix_mdev, kvm_get_kvm(kvm); matrix_mdev->kvm = kvm; -
>>> memcpy(&matrix_mdev->shadow_apcb, &matrix_mdev->matrix, - sizeof(struct ap_matrix));
>>> kvm_arch_crypto_set_masks(kvm, matrix_mdev->shadow_apcb.apm,
>>> matrix_mdev->shadow_apcb.aqm, matrix_mdev->shadow_apcb.adm);|
>>
>> This looks like an unrelated change. Does this snippet really belong to this patch?
>
> It's kind of hard to tell which snippet you are talking about without the patch context,
> but I assume you are referring to the removal of the memcpy statement in the
> vfio_ap_mdev_set_kvm() function in which case this snippet belongs with this patch.
>
> This patch introduces a function that filters the contents of the matrix_mdev->matrix to
> ensure that the matrix_mdev->shadow_apcb contains only queues that are bound to the
> vfio_ap device driver. The filtering function is called whenever an adapter, domain or
> control domain is assigned or unassigned, so it is no longer necessary to copy the
> contents of matrix_mdev->matrix into matrix_mdev->shadow_apcb before setting the masks in
> the guest; that will have already been done by the filter function.
>
>
I was apparently a little overzealous with my trimming. Yes, you are correct. Thanks for
the explanation.
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
--
-- Jason J. Herne (jjherne@linux.ibm.com)
next prev parent reply other threads:[~2022-05-16 17:51 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-04 22:10 [PATCH v19 00/20] s390/vfio-ap: dynamic configuration support Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 01/20] s390/vfio-ap: use new AP bus interface to search for queue devices Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 02/20] s390/vfio-ap: move probe and remove callbacks to vfio_ap_ops.c Tony Krowiak
2022-05-24 14:49 ` Jason J. Herne
2022-05-24 17:41 ` Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 03/20] s390/vfio-ap: manage link between queue struct and matrix mdev Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 04/20] s390/vfio-ap: introduce shadow APCB Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 05/20] s390/vfio-ap: refresh guest's APCB by filtering AP resources assigned to mdev Tony Krowiak
2022-05-16 16:36 ` Jason J. Herne
2022-05-16 17:13 ` Tony Krowiak
2022-05-16 17:50 ` Jason J. Herne [this message]
2022-05-16 18:06 ` Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 06/20] s390/vfio-ap: allow assignment of unavailable AP queues to mdev device Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 07/20] s390/vfio-ap: rename matrix_dev->lock mutex to matrix_dev->mdevs_lock Tony Krowiak
2022-05-17 14:02 ` Jason J. Herne
2022-05-17 18:36 ` Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 08/20] s390/vfio-ap: introduce new mutex to control access to the KVM pointer Tony Krowiak
2022-05-27 12:40 ` Jason J. Herne
2022-04-04 22:10 ` [PATCH v19 09/20] s390/vfio-ap: use proper locking order when setting/clearing " Tony Krowiak
2022-05-27 12:41 ` Jason J. Herne
2022-04-04 22:10 ` [PATCH v19 10/20] s390/vfio-ap: prepare for dynamic update of guest's APCB on assign/unassign Tony Krowiak
2022-05-27 13:18 ` Jason J. Herne
2022-05-31 10:32 ` Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 11/20] s390/vfio-ap: prepare for dynamic update of guest's APCB on queue probe/remove Tony Krowiak
2022-05-27 13:36 ` Jason J. Herne
2022-05-31 10:44 ` Tony Krowiak
2022-06-07 12:05 ` Halil Pasic
2022-06-08 13:31 ` Tony Krowiak
2022-05-27 13:50 ` Jason J. Herne
2022-05-31 11:57 ` Tony Krowiak
2022-05-31 12:02 ` Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 12/20] s390/vfio-ap: allow hot plug/unplug of AP devices when assigned/unassigned Tony Krowiak
2022-06-01 18:54 ` Jason J. Herne
2022-04-04 22:10 ` [PATCH v19 13/20] s390/vfio-ap: hot plug/unplug of AP devices when probed/removed Tony Krowiak
2022-06-01 18:55 ` Jason J. Herne
2022-04-04 22:10 ` [PATCH v19 14/20] s390/vfio-ap: reset queues after adapter/domain unassignment Tony Krowiak
2022-06-02 15:00 ` Jason J. Herne
2022-04-04 22:10 ` [PATCH v19 15/20] s390/vfio-ap: implement in-use callback for vfio_ap driver Tony Krowiak
2022-06-02 18:16 ` Jason J. Herne
2022-06-02 19:19 ` Tony Krowiak
2022-06-02 20:21 ` Jason J. Herne
2022-04-04 22:10 ` [PATCH v19 16/20] s390/vfio-ap: sysfs attribute to display the guest's matrix Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 17/20] s390/vfio-ap: handle config changed and scan complete notification Tony Krowiak
2022-06-06 17:50 ` Jason J. Herne
2022-04-04 22:10 ` [PATCH v19 18/20] s390/vfio-ap: update docs to include dynamic config support Tony Krowiak
2022-05-31 13:22 ` Jason J. Herne
2022-04-04 22:10 ` [PATCH v19 19/20] s390/Docs: new doc describing lock usage by the vfio_ap device driver Tony Krowiak
2022-05-31 19:23 ` Jason J. Herne
2022-06-02 16:11 ` Tony Krowiak
2022-04-04 22:10 ` [PATCH v19 20/20] MAINTAINERS: pick up all vfio_ap docs for VFIO AP maintainers Tony Krowiak
2022-05-31 18:26 ` Matthew Rosato
2022-06-02 16:19 ` Tony Krowiak
2022-04-29 19:57 ` [PATCH v19 00/20] s390/vfio-ap: dynamic configuration support Tony Krowiak
2022-05-03 17:39 ` Tony Krowiak
2022-05-09 14:34 ` Tony Krowiak
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6720e18e-0638-7f2f-533e-beca8a990404@linux.ibm.com \
--to=jjherne@linux.ibm.com \
--cc=akrowiak@linux.ibm.com \
--cc=alex.williamson@redhat.com \
--cc=borntraeger@de.ibm.com \
--cc=cohuck@redhat.com \
--cc=fiuczy@linux.ibm.com \
--cc=freude@linux.ibm.com \
--cc=kvm@vger.kernel.org \
--cc=kwankhede@nvidia.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=mjrosato@linux.ibm.com \
--cc=pasic@linux.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).