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From: | Paolo Bonzini |
Subject: | Re: [Qemu-devel] [RFC] create a single workqueue for each vm to update vm irq routing table |
Date: | Tue, 26 Nov 2013 14:13:25 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130923 Thunderbird/17.0.9 |
Il 26/11/2013 13:56, Gleb Natapov ha scritto: > > I don't think a workqueue is even needed. You just need to use call_rcu > > to free "old" after releasing kvm->irq_lock. > > > > What do you think? > > It should be rate limited somehow. Since it guest triggarable guest may cause > host to allocate a lot of memory this way. True, though if I understand Zhanghaoyu's proposal a workqueue would be even worse. Paolo
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