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[Qemu-devel] Re: [PATCH v3] virtio-pci: Disable virtio-ioeventfd when !C
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From: |
Kevin Wolf |
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Subject: |
[Qemu-devel] Re: [PATCH v3] virtio-pci: Disable virtio-ioeventfd when !CONFIG_IOTHREAD |
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Date: |
Wed, 26 Jan 2011 11:19:04 +0100 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10 |
Am 25.01.2011 18:42, schrieb Michael S. Tsirkin:
> On Tue, Jan 25, 2011 at 04:17:14PM +0000, Stefan Hajnoczi wrote:
>> It is not possible to use virtio-ioeventfd when building without an I/O
>> thread. We rely on a signal to kick us out of vcpu execution. Timers
>> and AIO use SIGALRM and SIGUSR2 respectively. Unfortunately eventfd
>> does not support O_ASYNC (SIGIO) so eventfd cannot be used in a signal
>> driven manner.
>>
>> Signed-off-by: Stefan Hajnoczi <address@hidden>
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> Acked-by: Michael S. Tsirkin <address@hidden>
I guess this means that it should go through my tree? I applied it to
the block branch now.
Kevin