From: Liu Ping Fan <kernelfans@gmail.com>
To: linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org,
kvm@vger.kernel.org
Cc: Paul Mackerras <paulus@samba.org>, Alexander Graf <agraf@suse.de>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH v2] powernv: kvm: make _PAGE_NUMA take effect
Date: Tue, 21 Jan 2014 16:15:29 +0800 [thread overview]
Message-ID: <1390292129-15871-1-git-send-email-pingfank@linux.vnet.ibm.com> (raw)
To make sure that on host, the pages marked with _PAGE_NUMA result in a fault
when guest access them, we should force the checking when guest uses hypercall
to setup hpte.
Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
---
v2:
It should be the reply to "[PATCH 2/4] powernv: kvm: make _PAGE_NUMA take effect"
And I imporve the changelog according to Aneesh's suggestion.
---
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 reply other threads:[~2014-01-21 8:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-21 8:15 Liu Ping Fan [this message]
2014-01-21 9:42 ` [PATCH v2] powernv: kvm: make _PAGE_NUMA take effect Aneesh Kumar K.V
2014-01-27 9:11 ` Alexander Graf
2014-01-27 10:28 ` Aneesh Kumar K.V
2014-01-27 10:42 ` Alexander Graf
2014-01-27 15:57 ` Aneesh Kumar K.V
2014-01-27 10:41 ` Paul Mackerras
2014-04-03 2:36 ` Liu ping fan
2014-04-03 11:36 ` Alexander Graf
2014-04-03 11:38 ` Alexander Graf
2014-04-03 11:43 ` Alexander Graf
2014-04-07 7:42 ` Aneesh Kumar K.V
2014-04-07 8:36 ` Alexander Graf
2014-04-10 3:28 ` Liu ping fan
2014-04-10 10:02 ` Alexander Graf
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