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ppc/kvm: Register also a generic spapr CPU core family type

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There is a regression with the "-cpu" parameter introduced by
the spapr CPU hotplug code: We used to allow to specify a
"CPU family" name with the "-cpu" parameter when running on KVM so
that the user does not need to know the gory details of the exact
CPU version of the host CPU. For example, it was possible to
use "-cpu POWER8" on a POWER8E host CPU. This behavior does not
work anymore with the new hot-pluggable spapr-cpu-core types.
Since libvirt already heavily depends on the old behavior, this
is quite a severe regression in the QEMU parameter interface.
Let's fix it by supporting a CPU family type for the spapr-cpu-core
on KVM, too.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1363812
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Thomas Huth 2016-08-09 19:00:01 +02:00 committed by David Gibson
parent 9c83fc2e8e
commit d11b268e17
1 changed files with 5 additions and 2 deletions
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7
target-ppc/kvm.c
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@ -2409,8 +2409,11 @@ static int kvm_ppc_register_host_cpu_type(void)
type_info.class_init = NULL;
type_register(&type_info);
g_free((void *)type_info.name);
type_info.instance_size = 0;
type_info.instance_init = NULL;
/* Register generic spapr CPU family class for current host CPU type */
type_info.name = g_strdup_printf("%s-"TYPE_SPAPR_CPU_CORE, dc->desc);
type_register(&type_info);
g_free((void *)type_info.name);
#endif
return 0;