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[Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed
From: |
Amit Shah |
Subject: |
[Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add |
Date: |
Thu, 25 Mar 2010 09:17:17 +0530 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On (Wed) Mar 24 2010 [17:34:15], Luiz Capitulino wrote:
> On Wed, 24 Mar 2010 20:19:28 +0530
> Amit Shah <address@hidden> wrote:
>
> > When adding a port or a device to the guest fails, management software
> > might be interested in knowing and then cleaning up the host-side of the
> > port. Introduce QMP events to signal such errors.
>
> I'm completely unfamiliar with virtio-serial, so let me ask: how are ports
> added? I'd expect the command performing this operation to fail in this case.
If adding the port fails in qemu, then the command will fail. However if
adding the port in the guest fails, we raise this QMP event. Adding in
the guest could fail because of several reasons, like ENOMEM. In this
case, the mgmt might want to hot-unplug the port from qemu so that
resources are freed and also apps are notified of guest side not ready.
Amit
- [Qemu-devel] [PATCH 09/15] virtio-serial: Propagate errors in initialising ports / devices in guest, (continued)
- [Qemu-devel] [PATCH 09/15] virtio-serial: Propagate errors in initialising ports / devices in guest, Amit Shah, 2010/03/24
- [Qemu-devel] [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Amit Shah, 2010/03/24
- [Qemu-devel] [PATCH 11/15] virtio-serial: Send out guest data to ports only if port is opened, Amit Shah, 2010/03/24
- [Qemu-devel] [PATCH 12/15] iov: Introduce a new file for helpers around iovs, add iov_from_buf(), Amit Shah, 2010/03/24
- [Qemu-devel] [PATCH 13/15] iov: Add iov_to_buf and iov_size helpers, Amit Shah, 2010/03/24
- [Qemu-devel] [PATCH 14/15] virtio-serial: Handle scatter-gather buffers for control messages, Amit Shah, 2010/03/24
- [Qemu-devel] [PATCH 15/15] virtio-serial: Handle scatter/gather input from the guest, Amit Shah, 2010/03/24
- [Qemu-devel] Re: [PATCH 14/15] virtio-serial: Handle scatter-gather buffers for control messages, Juan Quintela, 2010/03/30
- [Qemu-devel] Re: [PATCH 14/15] virtio-serial: Handle scatter-gather buffers for control messages, Amit Shah, 2010/03/30
- [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Luiz Capitulino, 2010/03/24
- [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add,
Amit Shah <=
- [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Luiz Capitulino, 2010/03/25
- Re: [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Jamie Lokier, 2010/03/25
- Re: [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Amit Shah, 2010/03/25
- Re: [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Jamie Lokier, 2010/03/26
- Re: [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Amit Shah, 2010/03/26
- Re: [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Jamie Lokier, 2010/03/26
- Re: [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Amit Shah, 2010/03/26
- Re: [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Jamie Lokier, 2010/03/26
- Re: [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Amit Shah, 2010/03/26
- Re: [Qemu-devel] Re: [PATCH 10/15] virtio-serial: Add QMP events for failed port/device add, Jamie Lokier, 2010/03/28