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Re: [Qemu-devel] Re: [PATCH 4/9] virtio-serial: Handle scatter-gather bu
From: |
Amit Shah |
Subject: |
Re: [Qemu-devel] Re: [PATCH 4/9] virtio-serial: Handle scatter-gather buffers for control messages |
Date: |
Mon, 22 Mar 2010 10:48:02 +0530 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On (Sat) Mar 20 2010 [09:40:50], Avi Kivity wrote:
> On 03/19/2010 01:58 PM, Amit Shah wrote:
>> +
>> + offset = 0;
>> + for (i = 0; i< elem.out_num; i++) {
>> + memcpy(buf + offset, elem.out_sg[i].iov_base,
>> + elem.out_sg[i].iov_len);
>> + offset += elem.out_sg[i].iov_len;
>> + }
>> + len = cur_len;
>> +
>> + handle_control_message(vser, buf, len);
>> + virtqueue_push(vq,&elem, len);
>> + }
>> + if (len) {
>> + qemu_free(buf);
>> }
>> virtio_notify(vdev, vq);
>> }
>
> Isn't there some virtio function to linearize requests?
I don't see one.
Amit
- [Qemu-devel] [PATCH 1/9] virtio-serial-bus: save/load: Ensure target has enough ports, (continued)
- [Qemu-devel] [PATCH 1/9] virtio-serial-bus: save/load: Ensure target has enough ports, Amit Shah, 2010/03/19
- [Qemu-devel] [PATCH 2/9] virtio-serial-bus: save/load: Ensure nr_ports on src and dest are same., Amit Shah, 2010/03/19
- [Qemu-devel] [PATCH 3/9] virtio-serial: save/load: Ensure we have hot-plugged ports instantiated, Amit Shah, 2010/03/19
- [Qemu-devel] [PATCH 4/9] virtio-serial: Handle scatter-gather buffers for control messages, Amit Shah, 2010/03/19
- [Qemu-devel] [PATCH 5/9] virtio-serial: Handle scatter/gather input from the guest, Amit Shah, 2010/03/19
- [Qemu-devel] [PATCH 6/9] virtio-serial: Remove redundant check for 0-sized write request, Amit Shah, 2010/03/19
- [Qemu-devel] [PATCH 7/9] virtio-serial: Update copyright year to 2010, Amit Shah, 2010/03/19
- [Qemu-devel] [PATCH 8/9] virtio-serial-bus: Use a bitmap in virtio config space for active ports, Amit Shah, 2010/03/19
- [Qemu-devel] [PATCH 9/9] virtio-serial-bus: Let the guest know of host connection changes after migration, Amit Shah, 2010/03/19
- [Qemu-devel] Re: [PATCH 4/9] virtio-serial: Handle scatter-gather buffers for control messages, Avi Kivity, 2010/03/20
- Re: [Qemu-devel] Re: [PATCH 4/9] virtio-serial: Handle scatter-gather buffers for control messages,
Amit Shah <=
- Re: [Qemu-devel] Re: [PATCH 4/9] virtio-serial: Handle scatter-gather buffers for control messages, Michael S. Tsirkin, 2010/03/23
- Re: [Qemu-devel] Re: [PATCH 4/9] virtio-serial: Handle scatter-gather buffers for control messages, Amit Shah, 2010/03/23
- Re: [Qemu-devel] Re: [PATCH 4/9] virtio-serial: Handle scatter-gather buffers for control messages, Michael S. Tsirkin, 2010/03/23
[Qemu-devel] Re: [PATCH 0/9] virtio-serial fixes, ABI updates, Michael S. Tsirkin, 2010/03/21