<div dir="ltr">thanks! I'll stay tuned :)</div><div class="gmail_extra"><br><div class="gmail_quote">2018-04-16 16:59 GMT+08:00 Zhenyu Wang <span dir="ltr"><<a href="mailto:zhenyuw@linux.intel.com" target="_blank">zhenyuw@linux.intel.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5"><br>
On 2018.04.16 11:43:05 +0800, Zhe Liu wrote:<br>
> Recently, Alex post a patch in the kvm community to add ioeventfd support for<br>
> vfio.<br>
> <br>
> <a href="https://lkml.org/lkml/2018/2/6/866" rel="noreferrer" target="_blank">https://lkml.org/lkml/2018/2/<wbr>6/866</a><br>
> <br>
> This patch adds a shortcut for guest to directly trigger driver events, though<br>
> the message addr and data is preprogrammed.<br>
> <br>
> Can this patch be used for gvt? For example, to accelerate MSI-ACK or DMA kick?<br>
<br>
</div></div>One possible usage we discussed is for gpu master irq enable which does not require<br>
synchronized emulation, but currently haven't done experiment on that and no data on<br>
how much gain that can bring.<br>
<span class="HOEnZb"><font color="#888888"><br>
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