[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support
From: |
Andrew Jones |
Subject: |
Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support |
Date: |
Tue, 2 Feb 2016 15:04:40 +0100 |
User-agent: |
Mutt/1.5.23.1 (2014-03-12) |
On Tue, Feb 02, 2016 at 01:15:49PM +0000, Peter Maydell wrote:
> On 2 February 2016 at 12:59, Andrew Jones <address@hidden> wrote:
> > This actually doesn't matter for the v2 vs. v3 case. The gic-version
> > property
> > doesn't exist at all for v2-only QEMU. Although maybe the gic-version
> > property
> > should be reworked. Instead of gic-version=<highest-supported>, we could
> > create
> > one boolean property per version supported, i.e. gicv2, gicv3, gicv4...
>
> QEMU 2.5 released with the gic-version property, so we can't just drop
> it now; that would break users' command lines. We'd need a strong
> argument for why it's worth adding new properties that duplicate
> the legacy syntax.
I agree we should have a good argument to justify messing with it, but
until we start versioning mach-virt, then I don't think anybody should
depend on mach-virt command lines working everywhere. Every time we add
a new property, and a user adds it to their command line, then they've
just broken that command line for older QEMU. Yes, I know the upgrade
path is a bit different, but still... Anyway, properties are changeable
with versioned machines.
drew
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Christoffer Dall, 2016/02/02
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Daniel P. Berrange, 2016/02/02
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Christoffer Dall, 2016/02/02
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Andrew Jones, 2016/02/02
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Eric Blake, 2016/02/02
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Christoffer Dall, 2016/02/02
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Andrea Bolognani, 2016/02/15
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Andrea Bolognani, 2016/02/02
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Pavel Fedin, 2016/02/02
- Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support, Peter Maydell, 2016/02/02