[libvirt] [PATCH 0/3] qemu: Allow arm 32-on-64 KVM

[John Ferlan]

On 05/21/2015 07:03 PM, Cole Robinson wrote:
> qemu 2.3.0 added support for enabling armv7l VMs to run on aarch64 hosts
> with KVM. First patch handles the special command line bit, last two
> patches are about advertising things in virsh capabilities.
> 
> After these patches, 'virt-install --arch armv7l ...' on an aarch64
> host with new enough qemu will automatically use KVM and generate a
> working config.
> 
> Cole Robinson (3):
>   qemu: command: Support arm 32-on-64 KVM with -cpu aarch64=off
>   qemu: caps: qemu-system-aarch64 supports armv7l
>   qemu: caps: Advertise arm 32-on-64 KVM option
> 
>  src/qemu/qemu_capabilities.c                       | 57 ++++++++++++++--------
>  src/qemu/qemu_capabilities.h                       |  1 +
>  src/qemu/qemu_command.c                            | 13 +++++
>  .../qemuxml2argv-aarch64-kvm-32-on-64.args         | 10 ++++
>  .../qemuxml2argv-aarch64-kvm-32-on-64.xml          | 35 +++++++++++++
>  tests/qemuxml2argvtest.c                           |  9 ++++
>  6 files changed, 105 insertions(+), 20 deletions(-)
>  create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-kvm-32-on-64.args
>  create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-kvm-32-on-64.xml
> 

Perhaps lost by having the tweak dir perms handling patch sneak in...

Seems reasonable to me (ACK)... Should there be some way to document how
this would be added/usable in the passthrough description in
formatdomain? Or somewhere else? Not sure how anyone would know the
magic incantation to define/use this... Even though this was posted
before freeze, not 100% clear whether it's push-able for this release cycle.


John