KVM: PPC: Book3S HV P9: Add unlikely annotation for !mmu_ready

The mmu will almost always be ready.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211123095231.1036501-49-npiggin@gmail.com

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index e532a7010dba0d7edebf8c6e45b377502beeea64..4056605d3367710e2d4999fcb62ef0781bfd8f19 100644 (file)
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -4426,7 +4426,7 @@ int kvmhv_run_single_vcpu(struct kvm_vcpu *vcpu, u64 time_limit,
        vc->runner = vcpu;
 
        /* See if the MMU is ready to go */
-       if (!kvm->arch.mmu_ready) {
+       if (unlikely(!kvm->arch.mmu_ready)) {
                r = kvmhv_setup_mmu(vcpu);
                if (r) {
                        run->exit_reason = KVM_EXIT_FAIL_ENTRY;