From 165dc3edd7f705c6c10908860b8c72e55eadd04b Mon Sep 17 00:00:00 2001 From: David Gibson Date: Wed, 30 Oct 2019 17:20:35 +0100 Subject: spapr/kvm: Set default cpu model for all machine classes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We have to set the default model of all machine classes, not just for the active one. Otherwise, "query-machines" will indicate the wrong CPU model (e.g. "power9_v2.0-powerpc64-cpu" instead of "host-powerpc64-cpu") as "default-cpu-type". s390x already fixed this in de60a92e "s390x/kvm: Set default cpu model for all machine classes". This patch applies a similar fix for the pseries-* machine types on ppc64. Doing a {"execute":"query-machines"} under KVM now results in { "hotpluggable-cpus": true, "name": "pseries-4.2", "numa-mem-supported": true, "default-cpu-type": "host-powerpc64-cpu", "is-default": true, "cpu-max": 1024, "deprecated": false, "alias": "pseries" }, { "hotpluggable-cpus": true, "name": "pseries-4.1", "numa-mem-supported": true, "default-cpu-type": "host-powerpc64-cpu", "cpu-max": 1024, "deprecated": false }, ... Libvirt probes all machines via "-machine none,accel=kvm:tcg" and will currently see the wrong CPU model under KVM. Reported-by: Jiři Denemark Cc: David Hildenbrand Cc: Igor Mammedov Signed-off-by: David Gibson Reviewed-by: David Hildenbrand Reviewed-by: Greg Kurz Tested-by: Jiri Denemark Signed-off-by: Laurent Vivier --- target/ppc/kvm.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) (limited to 'target/ppc/kvm.c') diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index 7d2e8969ac..c77f9848ec 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -100,7 +100,7 @@ static bool kvmppc_is_pr(KVMState *ks) return kvm_vm_check_extension(ks, KVM_CAP_PPC_GET_PVINFO) != 0; } -static int kvm_ppc_register_host_cpu_type(MachineState *ms); +static int kvm_ppc_register_host_cpu_type(void); static void kvmppc_get_cpu_characteristics(KVMState *s); static int kvmppc_get_dec_bits(void); @@ -147,7 +147,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s) exit(1); } - kvm_ppc_register_host_cpu_type(ms); + kvm_ppc_register_host_cpu_type(); return 0; } @@ -2534,13 +2534,19 @@ PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void) return pvr_pcc; } -static int kvm_ppc_register_host_cpu_type(MachineState *ms) +static void pseries_machine_class_fixup(ObjectClass *oc, void *opaque) +{ + MachineClass *mc = MACHINE_CLASS(oc); + + mc->default_cpu_type = TYPE_HOST_POWERPC_CPU; +} + +static int kvm_ppc_register_host_cpu_type(void) { TypeInfo type_info = { .name = TYPE_HOST_POWERPC_CPU, .class_init = kvmppc_host_cpu_class_init, }; - MachineClass *mc = MACHINE_GET_CLASS(ms); PowerPCCPUClass *pvr_pcc; ObjectClass *oc; DeviceClass *dc; @@ -2552,10 +2558,9 @@ static int kvm_ppc_register_host_cpu_type(MachineState *ms) } type_info.parent = object_class_get_name(OBJECT_CLASS(pvr_pcc)); type_register(&type_info); - if (object_dynamic_cast(OBJECT(ms), TYPE_SPAPR_MACHINE)) { - /* override TCG default cpu type with 'host' cpu model */ - mc->default_cpu_type = TYPE_HOST_POWERPC_CPU; - } + /* override TCG default cpu type with 'host' cpu model */ + object_class_foreach(pseries_machine_class_fixup, TYPE_SPAPR_MACHINE, + false, NULL); oc = object_class_by_name(type_info.name); g_assert(oc); -- cgit v1.2.3