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Re: [Qemu-devel] [RFC] Next gen kvm api
From: |
Alan Cox |
Subject: |
Re: [Qemu-devel] [RFC] Next gen kvm api |
Date: |
Wed, 8 Feb 2012 17:12:49 +0000 |
> If the fd overhead really is a problem, perhaps the fd could be retained
> for setup operations, and omitted only on calls that require a vcpu to
> have been already set up on the current thread?
Quite frankly I'd like to have an fd because it means you've got a
meaningful way of ensuring that id reuse problems go away. You open a
given id and keep a handle to it, if the id gets reused then your handle
will be tied to the old one so you can fail the requests.
Without an fd it's near impossible to get this right. The Unix/Linux
model is open an object, use it, close it. I see no reason not to do that.
Also the LSM hooks apply to file objects mostly, so its a natural fit on
top *IF* you choose to use them.
Finally you can pass file handles around between processes - do that any
other way 8)
Alan
- Re: [Qemu-devel] [RFC] Next gen kvm api, (continued)
- Re: [Qemu-devel] [RFC] Next gen kvm api, Avi Kivity, 2012/02/16
- Re: [Qemu-devel] [RFC] Next gen kvm api, Anthony Liguori, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Avi Kivity, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Anthony Liguori, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Avi Kivity, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Anthony Liguori, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Chris Wright, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Scott Wood, 2012/02/08
- Re: [Qemu-devel] [RFC] Next gen kvm api,
Alan Cox <=
Re: [Qemu-devel] [RFC] Next gen kvm api, Rob Earhart, 2012/02/03
- Re: [Qemu-devel] [RFC] Next gen kvm api, Rob Earhart, 2012/02/03
- Re: [Qemu-devel] [RFC] Next gen kvm api, Avi Kivity, 2012/02/05
- Re: [Qemu-devel] [RFC] Next gen kvm api, Rob Earhart, 2012/02/06
- Re: [Qemu-devel] [RFC] Next gen kvm api, Anthony Liguori, 2012/02/06
- Re: [Qemu-devel] [RFC] Next gen kvm api, Avi Kivity, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Anthony Liguori, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Avi Kivity, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Jan Kiszka, 2012/02/07
- Re: [Qemu-devel] [RFC] Next gen kvm api, Anthony Liguori, 2012/02/07