[libvirt] [PATCH] qemu: Don't use -enable-nesting with qemu 1.2.0+

[Jiri Denemark]

On Sun, Oct 21, 2012 at 13:16:35 -0400, Cole Robinson wrote:
> On 10/20/2012 03:49 PM, Eric Blake wrote:
> > On 10/20/2012 01:28 PM, Cole Robinson wrote:
> >> Since the option doesn't exist. Fixes booting with
> >> cpu mode='host-model' and qemu 1.2.0
> >> ---
> >>  src/qemu/qemu_capabilities.c | 1 -
> >>  1 file changed, 1 deletion(-)
> >>
> >> diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
> >> index c9a4ab7..d691d51 100644
> >> --- a/src/qemu/qemu_capabilities.c
> >> +++ b/src/qemu/qemu_capabilities.c
> >> @@ -2162,7 +2162,6 @@ qemuCapsInitQMPBasic(qemuCapsPtr caps)
> >>      qemuCapsSet(caps, QEMU_CAPS_NODEFCONFIG);
> >>      qemuCapsSet(caps, QEMU_CAPS_BOOT_MENU);
> >>      qemuCapsSet(caps, QEMU_CAPS_FSDEV);
> >> -    qemuCapsSet(caps, QEMU_CAPS_NESTING);
>
> In qemu-kvm.git
> 
> commit 02885019915d7df85b0e8200aa305dfbe2942443
> Author: Jan Kiszka <jan.kiszka at siemens.com>
> Date:   Mon Jun 27 20:19:46 2011 +0200
> 
>     qemu-kvm: Drop -enable-nesting command line switch
> 
>     As in upstream, this feature can be controlled via -cpu ...,+/-svm.
> 
> 
> So the command line switch doesn't actually exist in qemu-1.2.0+ which is what
> qemuCapsInitQMPBasic is supposed to representing.

OK, the QEMU commit message helps a lot. We used -enable-nesting iff svm
feature was requested but now when enabling svm is enough, it makes sense that
upstream dropped the command line switch completely.

ACK

Jirka