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KVM: PPC: E500: Fix clear_tlb_refs

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Our mapping code assumes that TLB0 entries are always mapped. However, after
calling clear_tlb_refs() this is no longer the case.

Map them dynamically if we find an entry unmapped in TLB0.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2012-08-02 13:38:49 +02:00
parent cf1c5ca473
commit 2bb890f5ee
1 changed files with 6 additions and 2 deletions
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8
arch/powerpc/kvm/e500_tlb.c
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@ -1039,8 +1039,12 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 eaddr, gpa_t gpaddr,
sesel = 0; /* unused */
priv = &vcpu_e500->gtlb_priv[tlbsel][esel];
kvmppc_e500_setup_stlbe(vcpu, gtlbe, BOOK3E_PAGESZ_4K,
&priv->ref, eaddr, &stlbe);
/* Only triggers after clear_tlb_refs */
if (unlikely(!(priv->ref.flags & E500_TLB_VALID)))
kvmppc_e500_tlb0_map(vcpu_e500, esel, &stlbe);
else
kvmppc_e500_setup_stlbe(vcpu, gtlbe, BOOK3E_PAGESZ_4K,
&priv->ref, eaddr, &stlbe);
break;
case 1: {