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Re: [Qemu-devel] [PATCH 17/23] hyperv: add synic message delivery
From: |
Roman Kagan |
Subject: |
Re: [Qemu-devel] [PATCH 17/23] hyperv: add synic message delivery |
Date: |
Wed, 14 Jun 2017 18:28:50 +0300 |
User-agent: |
Mutt/1.8.0 (2017-02-23) |
On Wed, Jun 14, 2017 at 05:08:02PM +0200, Paolo Bonzini wrote:
>
>
> On 06/06/2017 20:19, Roman Kagan wrote:
> > + sint_route->msg_status = ret;
> > + /* notify the msg originator of the progress made; if the slot was
> > busy we
> > + * set msg_pending flag in it so it will be the guest who will do EOM
> > and
> > + * trigger the notification from KVM via sint_ack_notifier */
> > + if (ret != -EAGAIN) {
> > + qemu_bh_schedule(sint_route->msg_bh);
> > + }
>
> It may be faster to use aio_bh_schedule_oneshot, depending on the number
> of devices.
Messages aren't used on fast paths, they are only exchanged at device
setup/teardown. So I cared more about readability than speed here.
Thanks,
Roman.
- Re: [Qemu-devel] [PATCH 13/23] hyperv: qdev-ify SynIC, (continued)
[Qemu-devel] [PATCH 15/23] hyperv: make overlay pages for SynIC, Roman Kagan, 2017/06/06
[Qemu-devel] [PATCH 19/23] hyperv: process SIGNAL_EVENT hypercall, Roman Kagan, 2017/06/06
[Qemu-devel] [PATCH 18/23] hyperv: add synic event flag signaling, Roman Kagan, 2017/06/06
[Qemu-devel] [PATCH 17/23] hyperv: add synic message delivery, Roman Kagan, 2017/06/06
[Qemu-devel] [PATCH 22/23] MAINTAINERS: add myself and eyakovlev@ for hyperv*, Roman Kagan, 2017/06/06
[Qemu-devel] [PATCH 20/23] hyperv: process POST_MESSAGE hypercall, Roman Kagan, 2017/06/06
[Qemu-devel] [PATCH 21/23] hyperv_testdev: add SynIC message and event testmodes, Roman Kagan, 2017/06/06
[Qemu-devel] [PATCH 16/23] hyperv: map overlay pages after updating msrs, Roman Kagan, 2017/06/06