From 36ada4f4317e27bf52f52aef5c72f553eef08f4a Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Wed, 13 Feb 2013 19:37:49 +0000 Subject: [PATCH] kvm/ppc/e500: g2h_tlb1_map: clear old bit before setting new bit It's possible that we're using the same host TLB1 slot to map (a presumably different portion of) the same guest TLB1 entry. Clear the bit in the map before setting it, so that if the esels are the same the bit will remain set. Signed-off-by: Scott Wood Signed-off-by: Alexander Graf --- arch/powerpc/kvm/e500_mmu_host.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c index 35fb80ec1f57..8e72b2124f63 100644 --- a/arch/powerpc/kvm/e500_mmu_host.c +++ b/arch/powerpc/kvm/e500_mmu_host.c @@ -507,13 +507,14 @@ static int kvmppc_e500_tlb1_map_tlb1(struct kvmppc_vcpu_e500 *vcpu_e500, if (unlikely(vcpu_e500->host_tlb1_nv >= tlb1_max_shadow_size())) vcpu_e500->host_tlb1_nv = 0; - vcpu_e500->tlb_refs[1][sesel] = *ref; - vcpu_e500->g2h_tlb1_map[esel] |= (u64)1 << sesel; - vcpu_e500->gtlb_priv[1][esel].ref.flags |= E500_TLB_BITMAP; if (vcpu_e500->h2g_tlb1_rmap[sesel]) { unsigned int idx = vcpu_e500->h2g_tlb1_rmap[sesel] - 1; vcpu_e500->g2h_tlb1_map[idx] &= ~(1ULL << sesel); } + + vcpu_e500->tlb_refs[1][sesel] = *ref; + vcpu_e500->gtlb_priv[1][esel].ref.flags |= E500_TLB_BITMAP; + vcpu_e500->g2h_tlb1_map[esel] |= (u64)1 << sesel; vcpu_e500->h2g_tlb1_rmap[sesel] = esel + 1; return sesel; -- 2.20.1