Message ID | 1386751674-14136-3-git-send-email-pingfank@linux.vnet.ibm.com |
---|---|
State | New, archived |
Headers | show |
Liu Ping Fan <kernelfans@gmail.com> writes: > 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); How did we end up doing h_enter on a pte entry with pte_numa bit set ? -aneesh -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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);
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(-)