[Rust-VMM] KVM bindings as independent crate

[Jiang Liu]

Hi Andreea,
	The CONTRIBUTING.md is very helpful and should be enough for us. Currently we are working with linux 4.19.
Thanks!
Gerry


> On Jan 8, 2019, at 1:13 AM, Florescu, Andreea <fandree at amazon.com> wrote:
> 
> Hey,
> 
> I must shamefully confess that I did the generating part manually, but in the process I documented it here [1]. I also plan to add a script for generating the bindings as I mentioned in the last section of CONTRIBUTING.md, but didn't really got the time to do that.
> Can you also submit a PR please if you generate the bindings for another version/architecture just in case some other people would like to use it?
> 
> Andreea
> 
> [1] https://github.com/andreeaflorescu/kvm_wrapper/blob/master/CONTRIBUTING.md <https://github.com/andreeaflorescu/kvm_wrapper/blob/master/CONTRIBUTING.md>
> From: Jiang Liu <liuj97 at gmail.com>
> Sent: Monday, January 7, 2019 6:53 PM
> To: Florescu, Andreea
> Cc: rust-vmm at lists.opendev.org
> Subject: Re: [Rust-VMM] KVM bindings as independent crate
>  
> Hi Andreea,
> Any plan to share the bindgen script so we could generate the binding again any kernel version if needed?
> Thanks!
> Gerry
> 
>> On Jan 8, 2019, at 12:41 AM, Florescu, Andreea <fandree at amazon.com <mailto:fandree at amazon.com>> wrote:
>> 
>> Hey everyone,
>> 
>> I published the KVM bindings on crates.io <http://crates.io/> [1] under the name "kvm_wrapper". The bindings are available for arm, arm64, x86 and x86_64. The kernel version can be selected by using features. For now I only added bindings for linux-4.14.0 and linux-4.20.0, but others can be added if needed. The version can be selected using features:
>> kvm_wrapper = { version = "0.1.0", features = ["kvm_v4_14_0"]}
>> and by default the latest kernel version is used.
>> 
>> We cannot use the crate right away in Firecracker because in the kvm_gen crate (previously named kvm_sys) we also have code that is not auto-generated so the first step for us is to move that code to somewhere else. This step is currently in review [2].
>> We still have to figure out some loose-ends and I created some issues for them [3], but it would be nice to get your feedback on this.
>> 
>> Thanks,
>> Andreea
>> 
>> [1] https://crates.io/crates/kvm_wrapper <https://crates.io/crates/kvm_wrapper>
>> [2] https://github.com/firecracker-microvm/firecracker/pull/816 <https://github.com/firecracker-microvm/firecracker/pull/816>
>> [3] https://github.com/andreeaflorescu/kvm_wrapper/issues <https://github.com/andreeaflorescu/kvm_wrapper/issues>
>> 
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> 
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