Subject: Re: [RFC PATCH v2 03/19] vbus: add connection-client helper infrastructure

From: Avi Kivity <[email-masked]>
Date: Thu, 04 Jun 2009 21:23:22 +0300

Michael S. Tsirkin wrote:
> Also - if we just had vmexit because a process executed
> io (or hypercall), can't we just do copy_to_user there?
> Avi, I think at some point you said that we can?
>   

You can do copy_to_user() whereever it is legal in Linux.  Almost all of 
kvm runs in process context, preemptible, and with interrupts enabled.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.