[RFC PATCH 1/6] KVM: PPC: Book3S HV P9: Add unlikely annotation for !mmu_ready
From: Nicholas Piggin <npiggin@gmail.com>
Date: 2021-07-15 13:16:19
Subsystem:
kernel virtual machine for powerpc (kvm/powerpc), linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
The mmu will almost always be ready. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kvm/book3s_hv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 9d15bbafe333..27a7a856eed1 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c@@ -4367,7 +4367,7 @@ 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;
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2.23.0