Commit 2bb890f5 authored by Alexander Graf's avatar Alexander Graf
Browse files

KVM: PPC: E500: Fix clear_tlb_refs 



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: default avatarAlexander Graf <agraf@suse.de>
parent cf1c5ca4

arch/powerpc/kvm/e500_tlb.c

+6 −2
Original line number Diff line number Diff line
@@ -1039,6 +1039,10 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 eaddr, gpa_t gpaddr, 
		sesel = 0; /* unused */

		priv = &vcpu_e500->gtlb_priv[tlbsel][esel];



		/* 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;