target/ppc/kvm: set vcpu as online/offline

Set the newly added register(KVM_REG_PPC_ONLINE) to indicate if the vcpu is
online(1) or offline(0)

KVM will use this information to set the RWMR register, which controls the PURR
and SPURR accumulation.

CC: paulus@samba.org
Signed-off-by: Nikunj A Dadhania <nikunj@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 9 insertions, 0 deletions

diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index ef63842217..30aeafa7de 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -2783,3 +2783,12 @@ bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu)
 
     return !kvmppc_is_pr(cs->kvm_state);
 }
+
+void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, unsigned int online)
+{
+    CPUState *cs = CPU(cpu);
+
+    if (kvm_enabled()) {
+        kvm_set_one_reg(cs, KVM_REG_PPC_ONLINE, &online);
+    }
+}