LinuxPPC-Dev Archive on lore.kernel.org

* [PATCH -V1 10/24] powerpc: Return all the valid pte ecndoing in KVM_PPC_GET_SMMU_INFO ioctl
From: Aneesh Kumar K.V @ 2013-02-26  8:05 UTC (permalink / raw)
  To: benh, paulus; +Cc: linux-mm, linuxppc-dev, Aneesh Kumar K.V
In-Reply-To: <1361865914-13911-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>

From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 arch/powerpc/kvm/book3s_hv.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 48f6d99..e50eb0d 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -1508,14 +1508,21 @@ long kvm_vm_ioctl_allocate_rma(struct kvm *kvm, struct kvm_allocate_rma *ret)
 static void kvmppc_add_seg_page_size(struct kvm_ppc_one_seg_page_size **sps,
 				     int linux_psize)
 {
+	int i, index = 0;
 	struct mmu_psize_def *def = &mmu_psize_defs[linux_psize];
 
 	if (!def->shift)
 		return;
 	(*sps)->page_shift = def->shift;
 	(*sps)->slb_enc = def->sllp;
-	(*sps)->enc[0].page_shift = def->shift;
-	(*sps)->enc[0].pte_enc = def->penc[linux_psize];
+	for (i = 0; i < MMU_PAGE_COUNT; i++) {
+		if ((signed int)def->penc[i] != -1) {
+			BUG_ON(index >= KVM_PPC_PAGE_SIZES_MAX_SZ);
+			(*sps)->enc[index].page_shift = mmu_psize_defs[i].shift;
+			(*sps)->enc[index].pte_enc = def->penc[i];
+			index++;
+		}
+	}
 	(*sps)++;
 }
 
-- 
1.7.10

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