target-ppc: add slbsync implementation

slbsync: SLB Synchoronize

The instruction provides an ordering function for the effects of all
slbieg instructions executed by the thread executing the slbsync
instruction.

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index b0f3c3be29aae7164936f0886bc9d4ef89e45ca3..b1a6aee6fc684c51f40332c5c1ad4f2a445d7373 100644 (file)
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -4497,6 +4497,17 @@ static void gen_slbieg(DisasContext *ctx)
 #endif /* defined(CONFIG_USER_ONLY) */
 }
 
+/* slbsync */
+static void gen_slbsync(DisasContext *ctx)
+{
+#if defined(CONFIG_USER_ONLY)
+    GEN_PRIV;
+#else
+    CHK_SV;
+    gen_check_tlb_flush(ctx, true);
+#endif /* defined(CONFIG_USER_ONLY) */
+}
+
 #endif  /* defined(TARGET_PPC64) */
 
 /***                              External control                         ***/
@@ -6453,6 +6464,7 @@ GEN_HANDLER(tlbsync, 0x1F, 0x16, 0x11, 0x03FFF801, PPC_MEM_TLBSYNC),
 GEN_HANDLER(slbia, 0x1F, 0x12, 0x0F, 0x031FFC01, PPC_SLBI),
 GEN_HANDLER(slbie, 0x1F, 0x12, 0x0D, 0x03FF0001, PPC_SLBI),
 GEN_HANDLER_E(slbieg, 0x1F, 0x12, 0x0E, 0x001F0001, PPC_NONE, PPC2_ISA300),
+GEN_HANDLER_E(slbsync, 0x1F, 0x12, 0x0A, 0x03FFF801, PPC_NONE, PPC2_ISA300),
 #endif
 GEN_HANDLER(eciwx, 0x1F, 0x16, 0x0D, 0x00000001, PPC_EXTERN),
 GEN_HANDLER(ecowx, 0x1F, 0x16, 0x09, 0x00000001, PPC_EXTERN),