From: Liu Ping Fan <kernelfans@gmail.com>
To: linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org
Cc: Paul Mackerras <paulus@samba.org>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Alexander Graf <agraf@suse.de>
Subject: [PATCH 2/4] powernv: kvm: make _PAGE_NUMA take effect
Date: Wed, 11 Dec 2013 16:47:52 +0800 [thread overview]
Message-ID: <1386751674-14136-3-git-send-email-pingfank@linux.vnet.ibm.com> (raw)
In-Reply-To: <1386751674-14136-1-git-send-email-pingfank@linux.vnet.ibm.com>
To make _PAGE_NUMA take effect, we should force the checking when
guest uses hypercall to setup hpte.
Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
---
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
next prev parent reply other threads:[~2013-12-11 8:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-11 8:47 [PATCH 0/4] powernv: kvm: numa fault improvement Liu Ping Fan
2013-12-11 8:47 ` [PATCH 1/4] mm: export numa_migrate_prep() Liu Ping Fan
2013-12-11 8:47 ` Liu Ping Fan [this message]
2014-01-20 15:22 ` [PATCH 2/4] powernv: kvm: make _PAGE_NUMA take effect Aneesh Kumar K.V
2013-12-11 8:47 ` [PATCH 3/4] powernv: kvm: extend input param for lookup_linux_pte Liu Ping Fan
2013-12-11 8:47 ` [PATCH 4/4] powernv: kvm: make the handling of _PAGE_NUMA faster for guest Liu Ping Fan
2014-01-09 12:08 ` [PATCH 0/4] powernv: kvm: numa fault improvement Alexander Graf
2014-01-15 6:36 ` Liu ping fan
2014-01-20 14:48 ` Alexander Graf
2014-01-21 11:22 ` Paul Mackerras
2014-01-22 5:18 ` Aneesh Kumar K.V
2014-01-22 8:33 ` Liu ping fan
2014-02-26 3:09 ` Liu ping fan
2014-01-20 15:45 ` Aneesh Kumar K.V
2014-01-21 2:30 ` Liu ping fan
2014-01-21 3:40 ` Aneesh Kumar K.V
2014-01-21 9:07 ` Liu ping fan
2014-01-21 9:11 ` Liu ping fan
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