Subject: [PATCH 2/4] powernv: kvm: make _PAGE_NUMA take effect

From: Liu Ping Fan <[email-masked]>
Date: Wed, 11 Dec 2013 16:47:52 +0800

To make _PAGE_NUMA take effect, we should force the checking when
guest uses hypercall to setup hpte.

Signed-off-by: Liu Ping Fan <[email-masked]>
---
 arch/powerpc/kvm/book3s_hv_rm_mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 9c51544..af8602d 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -232,7 +232,7 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
 		/* Look up the Linux PTE for the backing page */
 		pte_size = psize;
 		pte = lookup_linux_pte(pgdir, hva, writing, &pte_size);
-		if (pte_present(pte)) {
+		if (pte_present(pte) && !pte_numa(pte)) {
 			if (writing && !pte_write(pte))
 				/* make the actual HPTE be read-only */
 				ptel = hpte_make_readonly(ptel);
-- 
1.8.1.4