From: Alex Williamson <alex.williamson@redhat.com>
To: Neo Jia <cjia@nvidia.com>
Cc: Dong Jia <bjsdjshi@linux.vnet.ibm.com>,
Kirti Wankhede <kwankhede@nvidia.com>,
pbonzini@redhat.com, kraxel@redhat.com, qemu-devel@nongnu.org,
kvm@vger.kernel.org, kevin.tian@intel.com, shuai.ruan@intel.com,
jike.song@intel.com, zhiyuan.lv@intel.com
Subject: Re: [Qemu-devel] [RFC PATCH v4 1/3] Mediated device Core driver
Date: Mon, 6 Jun 2016 13:31:15 -0600 [thread overview]
Message-ID: <20160606133115.15f6e2a8@ul30vt.home> (raw)
In-Reply-To: <20160606174425.GA8903@nvidia.com>
On Mon, 6 Jun 2016 10:44:25 -0700
Neo Jia <cjia@nvidia.com> wrote:
> On Mon, Jun 06, 2016 at 04:29:11PM +0800, Dong Jia wrote:
> > On Sun, 5 Jun 2016 23:27:42 -0700
> > Neo Jia <cjia@nvidia.com> wrote:
> >
> > 2. VFIO_DEVICE_CCW_CMD_REQUEST
> > This intends to handle an intercepted channel I/O instruction. It
> > basically need to do the following thing:
>
> May I ask how and when QEMU knows that he needs to issue such VFIO ioctl at
> first place?
Yep, this is my question as well. It sounds a bit like there's an
emulated device in QEMU that's trying to tell the mediated device when
to start an operation when we probably should be passing through
whatever i/o operations indicate that status directly to the mediated
device. Thanks,
Alex
next prev parent reply other threads:[~2016-06-06 19:31 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-24 19:58 [Qemu-devel] [RFC PATCH v4 0/3] Add Mediated device support[was: Add vGPU support] Kirti Wankhede
2016-05-24 19:58 ` [Qemu-devel] [RFC PATCH v4 1/3] Mediated device Core driver Kirti Wankhede
2016-05-25 7:55 ` Tian, Kevin
2016-05-25 14:47 ` Kirti Wankhede
2016-05-27 9:00 ` Tian, Kevin
2016-05-25 22:39 ` Alex Williamson
2016-05-26 9:03 ` Kirti Wankhede
2016-05-26 14:06 ` Alex Williamson
2016-06-03 8:57 ` Dong Jia
2016-06-03 9:40 ` Tian, Kevin
2016-06-06 2:24 ` Dong Jia
2016-06-06 5:27 ` Kirti Wankhede
2016-06-06 6:01 ` Dong Jia
2016-06-06 6:27 ` Neo Jia
2016-06-06 8:29 ` Dong Jia
2016-06-06 17:44 ` Neo Jia
2016-06-06 19:31 ` Alex Williamson [this message]
2016-06-07 3:03 ` Tian, Kevin
2016-06-07 22:42 ` Alex Williamson
2016-06-08 1:18 ` Tian, Kevin
2016-06-08 1:39 ` Alex Williamson
2016-06-08 3:18 ` Dong Jia
2016-06-08 3:48 ` Neo Jia
2016-06-08 6:13 ` Dong Jia
2016-06-08 6:22 ` Neo Jia
2016-06-08 4:29 ` Alex Williamson
2016-06-15 6:37 ` Dong Jia
2016-05-24 19:58 ` [Qemu-devel] [RFC PATCH v4 2/3] VFIO driver for mediated PCI device Kirti Wankhede
2016-05-25 8:15 ` Tian, Kevin
2016-05-25 13:04 ` Kirti Wankhede
2016-05-27 10:03 ` Tian, Kevin
2016-05-27 15:13 ` Alex Williamson
2016-05-24 19:58 ` [Qemu-devel] [RFC PATCH v4 3/3] VFIO Type1 IOMMU: Add support for mediated devices Kirti Wankhede
2016-06-01 8:40 ` Dong Jia
2016-06-02 7:56 ` Neo Jia
2016-06-03 8:32 ` Dong Jia
2016-06-03 8:37 ` Tian, Kevin
2016-05-25 7:13 ` [Qemu-devel] [RFC PATCH v4 0/3] Add Mediated device support[was: Add vGPU support] Tian, Kevin
2016-05-25 13:43 ` Alex Williamson
2016-05-27 11:02 ` Tian, Kevin
2016-05-27 14:54 ` Alex Williamson
2016-05-27 22:43 ` Tian, Kevin
2016-05-28 14:56 ` Alex Williamson
2016-05-31 2:29 ` Jike Song
2016-05-31 14:29 ` Alex Williamson
2016-06-02 2:11 ` Jike Song
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