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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2016-06-07 12:50:24 +1000
committerDavid Gibson <david@gibson.dropbear.id.au>2016-06-07 13:10:44 +1000
commitdfdd3e43620a6cd4f2be31da5a257c84a16fc000 (patch)
tree8821f337b7cb5626cf83598cc7f238075a8b745b /target-ppc
parent8eb0f5637219820bfda8082296e1d3e39132d8de (diff)
ppc: POWER7 has lq/stq instructions and stq need to check ISA
The PPC_64BX instruction flag is used for a couple of newer instructions currently on POWER8 but our implementation for them works for POWER7 too (and already does the proper checking of what is permitted) with one exception: stq needs to check the ISA version. This fixes the latter and add the instructions to POWER7 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target-ppc')
-rw-r--r--target-ppc/translate.c5
-rw-r--r--target-ppc/translate_init.c2
2 files changed, 5 insertions, 2 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 5150455ef9..0c2239aa67 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -3047,10 +3047,13 @@ static void gen_std(DisasContext *ctx)
rs = rS(ctx->opcode);
if ((ctx->opcode & 0x3) == 0x2) { /* stq */
-
bool legal_in_user_mode = (ctx->insns_flags2 & PPC2_LSQ_ISA207) != 0;
bool le_is_supported = (ctx->insns_flags2 & PPC2_LSQ_ISA207) != 0;
+ if (!(ctx->insns_flags & PPC_64BX)) {
+ gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
+ }
+
if (!legal_in_user_mode && ctx->pr) {
gen_inval_exception(ctx, POWERPC_EXCP_PRIV_OPC);
return;
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index ad6f2f3be5..a1db5009c4 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -8377,7 +8377,7 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZ |
PPC_MEM_SYNC | PPC_MEM_EIEIO |
PPC_MEM_TLBIE | PPC_MEM_TLBSYNC |
- PPC_64B | PPC_64H | PPC_ALTIVEC |
+ PPC_64B | PPC_64H | PPC_64BX | PPC_ALTIVEC |
PPC_SEGMENT_64B | PPC_SLBI |
PPC_POPCNTB | PPC_POPCNTWD;
pcc->insns_flags2 = PPC2_VSX | PPC2_DFP | PPC2_DBRX | PPC2_ISA205 |