[Qemu-devel] Status of q35-lite?

[Qemu-devel] Status of q35-lite?

[Stefan Hajnoczi]

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Hi Chao,
Last year there was an effort to make "built-in" hardware optional so
that VMs can be launched with a minimal set of devices.  You made SATA,
PIT, and SMBus optional.

What is the current status of this work?

Are there more devices that could benefit from an optional switch?

For reference, here is the discussion that kicked of the effort to make
some core devices optional:
"[RFC 0/9] Introduce light weight PC platform pc-lite"
https://lists.nongnu.org/archive/html/qemu-devel/2016-06/msg04842.html

Stefan

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Re: [Qemu-devel] Status of q35-lite?

[Stefan Hajnoczi]

On Wed, May 24, 2017 at 4:07 PM, Stefan Hajnoczi <stefanha@redhat.com> wrote:

CCing Anthony Xu and Yang Zhong in case they know the current status
of this work.

> Hi Chao,
> Last year there was an effort to make "built-in" hardware optional so
> that VMs can be launched with a minimal set of devices.  You made SATA,
> PIT, and SMBus optional.
>
> What is the current status of this work?
>
> Are there more devices that could benefit from an optional switch?
>
> For reference, here is the discussion that kicked of the effort to make
> some core devices optional:
> "[RFC 0/9] Introduce light weight PC platform pc-lite"
> https://lists.nongnu.org/archive/html/qemu-devel/2016-06/msg04842.html
>
> Stefan

Re: [Qemu-devel] Status of q35-lite?

[Chao Peng]

On Wed, 2017-05-24 at 16:07 +0100, Stefan Hajnoczi wrote:
> Hi Chao,
> Last year there was an effort to make "built-in" hardware optional so
> that VMs can be launched with a minimal set of devices.  You made
> SATA,
> PIT, and SMBus optional.
> 
> What is the current status of this work?
> 
> Are there more devices that could benefit from an optional switch?

Hi Stefan, in terms of making device optional, we don't have more
follow-ups basically because other build-in devices do not have
significant performance impact. For other optimizations (like
optimizing/skipping BIOS), we are still working on them.

Chao
> 
> For reference, here is the discussion that kicked of the effort to
> make
> some core devices optional:
> "[RFC 0/9] Introduce light weight PC platform pc-lite"
> https://lists.nongnu.org/archive/html/qemu-devel/2016-06/msg04842.html
> 
> Stefan

Re: [Qemu-devel] Status of q35-lite?

[Stefan Hajnoczi]

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On Tue, Jun 13, 2017 at 02:07:04PM +0800, Chao Peng wrote:
> On Wed, 2017-05-24 at 16:07 +0100, Stefan Hajnoczi wrote:
> > Hi Chao,
> > Last year there was an effort to make "built-in" hardware optional so
> > that VMs can be launched with a minimal set of devices.  You made
> > SATA,
> > PIT, and SMBus optional.
> > 
> > What is the current status of this work?
> > 
> > Are there more devices that could benefit from an optional switch?
> 
> Hi Stefan, in terms of making device optional, we don't have more
> follow-ups basically because other build-in devices do not have
> significant performance impact. For other optimizations (like
> optimizing/skipping BIOS), we are still working on them.

Excellent to hear!  If you want early feedback on BIOS optimizations
then this mailing list or SeaBios/ed2k might be good places to discuss.

KVM Forum proposals can be submitted until Thursday, June 15th.  That
would be a good forum to present your work:
http://events.linuxfoundation.org/events/kvm-forum/program/cfp

Stefan

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