From: Cornelia Huck <cohuck@redhat.com>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
linux-s390@vger.kernel.org, markver@us.ibm.com,
Christian Borntraeger <borntraeger@de.ibm.com>,
qemu-devel@nongnu.org, linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org,
Xie Yongji <xieyongji@bytedance.com>,
stefanha@redhat.com,
Raphael Norwitz <raphael.norwitz@nutanix.com>,
Halil Pasic <pasic@linux.ibm.com>
Subject: Re: [RFC PATCH 1/1] virtio: write back features before verify
Date: Tue, 05 Oct 2021 17:25:32 +0200 [thread overview]
Message-ID: <87czoj1ok3.fsf@redhat.com> (raw)
In-Reply-To: <20211005135909.2b8ab021.pasic@linux.ibm.com>
On Tue, Oct 05 2021, Halil Pasic <pasic@linux.ibm.com> wrote:
> On Tue, 05 Oct 2021 13:13:31 +0200
> Cornelia Huck <cohuck@redhat.com> wrote:
>> Or am I misunderstanding what you're getting at?
>>
>
> Probably. I'm talking about pre- "do transport specific legacy detection
> in the device instead of looking at VERSION_1" you are probably talking
> about the post-state. If we had this new behavior for all relevant
> hypervisors then we wouldn't need to do a thing in the guest. The current
> code would work like charm.
Yeah, I was thinking more about the desired state. We need to both fix
QEMU (and other VMMs or devices should check whether they are doing the
right thing) and add a workaround on the driver side to make it work
with existing QEMUs.
WARNING: multiple messages have this Message-ID (diff)
From: Cornelia Huck <cohuck@redhat.com>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, markver@us.ibm.com,
"Michael S. Tsirkin" <mst@redhat.com>,
Xie Yongji <xieyongji@bytedance.com>,
qemu-devel@nongnu.org, linux-kernel@vger.kernel.org,
Halil Pasic <pasic@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Raphael Norwitz <raphael.norwitz@nutanix.com>,
stefanha@redhat.com, virtualization@lists.linux-foundation.org
Subject: Re: [RFC PATCH 1/1] virtio: write back features before verify
Date: Tue, 05 Oct 2021 17:25:32 +0200 [thread overview]
Message-ID: <87czoj1ok3.fsf@redhat.com> (raw)
In-Reply-To: <20211005135909.2b8ab021.pasic@linux.ibm.com>
On Tue, Oct 05 2021, Halil Pasic <pasic@linux.ibm.com> wrote:
> On Tue, 05 Oct 2021 13:13:31 +0200
> Cornelia Huck <cohuck@redhat.com> wrote:
>> Or am I misunderstanding what you're getting at?
>>
>
> Probably. I'm talking about pre- "do transport specific legacy detection
> in the device instead of looking at VERSION_1" you are probably talking
> about the post-state. If we had this new behavior for all relevant
> hypervisors then we wouldn't need to do a thing in the guest. The current
> code would work like charm.
Yeah, I was thinking more about the desired state. We need to both fix
QEMU (and other VMMs or devices should check whether they are doing the
right thing) and add a workaround on the driver side to make it work
with existing QEMUs.
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
WARNING: multiple messages have this Message-ID (diff)
From: Cornelia Huck <cohuck@redhat.com>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, markver@us.ibm.com,
"Michael S. Tsirkin" <mst@redhat.com>,
Xie Yongji <xieyongji@bytedance.com>,
qemu-devel@nongnu.org, linux-kernel@vger.kernel.org,
Halil Pasic <pasic@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Raphael Norwitz <raphael.norwitz@nutanix.com>,
stefanha@redhat.com, virtualization@lists.linux-foundation.org
Subject: Re: [RFC PATCH 1/1] virtio: write back features before verify
Date: Tue, 05 Oct 2021 17:25:32 +0200 [thread overview]
Message-ID: <87czoj1ok3.fsf@redhat.com> (raw)
In-Reply-To: <20211005135909.2b8ab021.pasic@linux.ibm.com>
On Tue, Oct 05 2021, Halil Pasic <pasic@linux.ibm.com> wrote:
> On Tue, 05 Oct 2021 13:13:31 +0200
> Cornelia Huck <cohuck@redhat.com> wrote:
>> Or am I misunderstanding what you're getting at?
>>
>
> Probably. I'm talking about pre- "do transport specific legacy detection
> in the device instead of looking at VERSION_1" you are probably talking
> about the post-state. If we had this new behavior for all relevant
> hypervisors then we wouldn't need to do a thing in the guest. The current
> code would work like charm.
Yeah, I was thinking more about the desired state. We need to both fix
QEMU (and other VMMs or devices should check whether they are doing the
right thing) and add a workaround on the driver side to make it work
with existing QEMUs.
next prev parent reply other threads:[~2021-10-05 15:25 UTC|newest]
Thread overview: 131+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-30 1:20 [RFC PATCH 1/1] virtio: write back features before verify Halil Pasic
2021-09-30 1:20 ` Halil Pasic
2021-09-30 8:04 ` Christian Borntraeger
2021-09-30 8:04 ` Christian Borntraeger
2021-09-30 9:28 ` Cornelia Huck
2021-09-30 9:28 ` Cornelia Huck
2021-09-30 11:03 ` Halil Pasic
2021-09-30 11:03 ` Halil Pasic
2021-09-30 11:31 ` Cornelia Huck
2021-09-30 11:31 ` Cornelia Huck
2021-10-01 14:22 ` Halil Pasic
2021-10-01 14:22 ` Halil Pasic
2021-10-01 15:18 ` Cornelia Huck
2021-10-01 15:18 ` Cornelia Huck
2021-10-02 18:13 ` Michael S. Tsirkin
2021-10-02 18:13 ` Michael S. Tsirkin
2021-10-04 2:23 ` Halil Pasic
2021-10-04 2:23 ` Halil Pasic
2021-10-04 9:07 ` Michael S. Tsirkin
2021-10-04 9:07 ` Michael S. Tsirkin
2021-10-04 9:07 ` Michael S. Tsirkin
2021-10-05 10:06 ` Cornelia Huck
2021-10-05 10:06 ` Cornelia Huck
2021-10-05 10:06 ` Cornelia Huck
2021-10-05 10:43 ` Halil Pasic
2021-10-05 10:43 ` Halil Pasic
2021-10-05 10:43 ` Halil Pasic
2021-10-05 11:11 ` Michael S. Tsirkin
2021-10-05 11:11 ` Michael S. Tsirkin
2021-10-05 11:11 ` Michael S. Tsirkin
2021-10-05 11:13 ` Cornelia Huck
2021-10-05 11:13 ` Cornelia Huck
2021-10-05 11:13 ` Cornelia Huck
2021-10-05 11:20 ` Michael S. Tsirkin
2021-10-05 11:20 ` Michael S. Tsirkin
2021-10-05 11:20 ` Michael S. Tsirkin
2021-10-05 11:59 ` Halil Pasic
2021-10-05 11:59 ` Halil Pasic
2021-10-05 11:59 ` Halil Pasic
2021-10-05 15:25 ` Cornelia Huck [this message]
2021-10-05 15:25 ` Cornelia Huck
2021-10-05 15:25 ` Cornelia Huck
2021-10-04 7:01 ` Cornelia Huck
2021-10-04 7:01 ` Cornelia Huck
2021-10-04 9:25 ` Halil Pasic
2021-10-04 9:25 ` Halil Pasic
2021-10-04 9:51 ` Cornelia Huck
2021-10-04 9:51 ` Cornelia Huck
2021-10-02 12:09 ` Michael S. Tsirkin
2021-10-02 12:09 ` Michael S. Tsirkin
2021-09-30 11:12 ` Michael S. Tsirkin
2021-09-30 11:12 ` Michael S. Tsirkin
2021-09-30 11:36 ` Cornelia Huck
2021-09-30 11:36 ` Cornelia Huck
2021-10-02 18:20 ` Michael S. Tsirkin
2021-10-02 18:20 ` Michael S. Tsirkin
2021-10-03 5:00 ` Halil Pasic
2021-10-03 5:00 ` Halil Pasic
2021-10-03 6:42 ` Michael S. Tsirkin
2021-10-03 6:42 ` Michael S. Tsirkin
2021-10-03 7:26 ` Michael S. Tsirkin
2021-10-03 7:26 ` Michael S. Tsirkin
2021-10-04 12:01 ` Cornelia Huck
2021-10-04 12:01 ` Cornelia Huck
2021-10-04 12:01 ` [virtio-dev] " Cornelia Huck
2021-10-04 12:54 ` Michael S. Tsirkin
2021-10-04 12:54 ` Michael S. Tsirkin
2021-10-04 14:27 ` Cornelia Huck
2021-10-04 14:27 ` Cornelia Huck
2021-10-04 14:27 ` [virtio-dev] " Cornelia Huck
2021-10-04 15:05 ` Michael S. Tsirkin
2021-10-04 15:05 ` Michael S. Tsirkin
2021-10-04 15:05 ` [virtio-dev] " Michael S. Tsirkin
2021-10-04 15:45 ` Cornelia Huck
2021-10-04 15:45 ` Cornelia Huck
2021-10-04 15:45 ` Cornelia Huck
2021-10-04 20:01 ` Michael S. Tsirkin
2021-10-04 20:01 ` Michael S. Tsirkin
2021-10-05 7:38 ` Cornelia Huck
2021-10-05 7:38 ` Cornelia Huck
2021-10-05 7:38 ` Cornelia Huck
2021-10-05 11:17 ` Halil Pasic
2021-10-05 11:17 ` Halil Pasic
2021-10-05 11:22 ` Michael S. Tsirkin
2021-10-05 11:22 ` Michael S. Tsirkin
2021-10-05 15:20 ` Cornelia Huck
2021-10-05 15:20 ` Cornelia Huck
2021-10-05 15:20 ` Cornelia Huck
2021-10-05 15:20 ` Cornelia Huck
2021-10-01 7:21 ` Halil Pasic
2021-10-01 7:21 ` Halil Pasic
2021-10-02 10:21 ` Michael S. Tsirkin
2021-10-02 10:21 ` Michael S. Tsirkin
2021-10-04 12:19 ` Cornelia Huck
2021-10-04 12:19 ` Cornelia Huck
2021-10-04 12:19 ` Cornelia Huck
2021-10-04 13:11 ` Michael S. Tsirkin
2021-10-04 13:11 ` Michael S. Tsirkin
2021-10-04 13:11 ` Michael S. Tsirkin
2021-10-04 14:33 ` Cornelia Huck
2021-10-04 14:33 ` Cornelia Huck
2021-10-04 14:33 ` Cornelia Huck
2021-10-04 15:07 ` Michael S. Tsirkin
2021-10-04 15:07 ` Michael S. Tsirkin
2021-10-04 15:07 ` Michael S. Tsirkin
2021-10-04 15:50 ` Cornelia Huck
2021-10-04 15:50 ` Cornelia Huck
2021-10-04 15:50 ` Cornelia Huck
2021-10-04 19:17 ` Michael S. Tsirkin
2021-10-04 19:17 ` Michael S. Tsirkin
2021-10-04 19:17 ` Michael S. Tsirkin
2021-10-06 10:13 ` Cornelia Huck
2021-10-06 10:13 ` Cornelia Huck
2021-10-06 10:13 ` Cornelia Huck
2021-10-06 12:15 ` Michael S. Tsirkin
2021-10-06 12:15 ` Michael S. Tsirkin
2021-10-06 12:15 ` Michael S. Tsirkin
2021-10-05 7:25 ` Halil Pasic
2021-10-05 7:25 ` Halil Pasic
2021-10-05 7:25 ` Halil Pasic
2021-10-05 7:53 ` Michael S. Tsirkin
2021-10-05 7:53 ` Michael S. Tsirkin
2021-10-05 7:53 ` Michael S. Tsirkin
2021-10-05 10:46 ` Halil Pasic
2021-10-05 10:46 ` Halil Pasic
2021-10-05 10:46 ` Halil Pasic
2021-10-05 11:11 ` Michael S. Tsirkin
2021-10-05 11:11 ` Michael S. Tsirkin
2021-10-05 11:11 ` Michael S. Tsirkin
2021-10-01 14:34 ` Christian Borntraeger
2021-10-01 14:34 ` Christian Borntraeger
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