1 files changed, 42 insertions, 0 deletions
diff --git a/target/ppc/mmu-book3s-v3.c b/target/ppc/mmu-book3s-v3.c
new file mode 100644
index 000000000..f4985bae7
--- /dev/null
+++ b/target/ppc/mmu-book3s-v3.c
@@ -0,0 +1,42 @@
+/*
+ *  PowerPC ISAV3 BookS emulation generic mmu helpers for qemu.
+ *
+ *  Copyright (c) 2017 Suraj Jitindar Singh, IBM Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "mmu-hash64.h"
+#include "mmu-book3s-v3.h"
+#include "mmu-radix64.h"
+
+bool ppc64_v3_get_pate(PowerPCCPU *cpu, target_ulong lpid, ppc_v3_pate_t *entry)
+{
+    uint64_t patb = cpu->env.spr[SPR_PTCR] & PTCR_PATB;
+    uint64_t pats = cpu->env.spr[SPR_PTCR] & PTCR_PATS;
+
+    /* Calculate number of entries */
+    pats = 1ull << (pats + 12 - 4);
+    if (pats <= lpid) {
+        return false;
+    }
+
+    /* Grab entry */
+    patb += 16 * lpid;
+    entry->dw0 = ldq_phys(CPU(cpu)->as, patb);
+    entry->dw1 = ldq_phys(CPU(cpu)->as, patb + 8);
+    return true;
+}