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KVM: PPC: Release clean pages as clean
When we mapped a page as read-only, we can just release it as clean to KVM's page claim mechanisms, because we're pretty sure it hasn't been touched. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
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@ -55,7 +55,11 @@ static void invalidate_pte(struct hpte_cache *pte)
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MMU_PAGE_4K, MMU_SEGSIZE_256M,
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false);
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pte->host_va = 0;
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kvm_release_pfn_dirty(pte->pfn);
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if (pte->pte.may_write)
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kvm_release_pfn_dirty(pte->pfn);
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else
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kvm_release_pfn_clean(pte->pfn);
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}
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void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, u64 guest_ea, u64 ea_mask)
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