From: Alexander Graf <[email protected]> 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 <[email protected]> Signed-off-by: Avi Kivity <[email protected]> diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c index 0eea589..b230154 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_host.c +++ b/arch/powerpc/kvm/book3s_64_mmu_host.c @@ -55,7 +55,11 @@ static void invalidate_pte(struct hpte_cache *pte) MMU_PAGE_4K, MMU_SEGSIZE_256M, false); pte->host_va = 0; - kvm_release_pfn_dirty(pte->pfn); + + if (pte->pte.may_write) + kvm_release_pfn_dirty(pte->pfn); + else + kvm_release_pfn_clean(pte->pfn); } void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, u64 guest_ea, u64 ea_mask) -- To unsubscribe from this list: send the line "unsubscribe kvm-commits" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
