MMCRA_BHRB_DISABLE
mtspr(SPRN_MMCRA, MMCRA_BHRB_DISABLE);
mtspr(SPRN_MMCRA, MMCRA_BHRB_DISABLE);
kvmppc_set_mmcra_hv(vcpu, MMCRA_BHRB_DISABLE);
if (!(mmcra & MMCRA_BHRB_DISABLE))
mmcra = MMCRA_BHRB_DISABLE;
val |= MMCRA_BHRB_DISABLE;
mmcra |= MMCRA_BHRB_DISABLE;
mmcra &= ~MMCRA_BHRB_DISABLE;