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-rw-r--r--target-ppc/translate.c36
1 files changed, 22 insertions, 14 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index f6ff248ea2..06372b9d6b 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -2872,36 +2872,44 @@ static void gen_ld(DisasContext *ctx)
/* lq */
static void gen_lq(DisasContext *ctx)
{
-#if defined(CONFIG_USER_ONLY)
- gen_inval_exception(ctx, POWERPC_EXCP_PRIV_OPC);
-#else
int ra, rd;
TCGv EA;
- /* Restore CPU state */
- if (unlikely(ctx->mem_idx == 0)) {
+ /* lq is a legal user mode instruction starting in ISA 2.07 */
+ bool legal_in_user_mode = (ctx->insns_flags2 & PPC2_LSQ_ISA207) != 0;
+ bool le_is_supported = (ctx->insns_flags2 & PPC2_LSQ_ISA207) != 0;
+
+ if (!legal_in_user_mode && is_user_mode(ctx)) {
gen_inval_exception(ctx, POWERPC_EXCP_PRIV_OPC);
return;
}
+
+ if (!le_is_supported && ctx->le_mode) {
+ gen_exception_err(ctx, POWERPC_EXCP_ALIGN, POWERPC_EXCP_ALIGN_LE);
+ return;
+ }
+
ra = rA(ctx->opcode);
rd = rD(ctx->opcode);
if (unlikely((rd & 1) || rd == ra)) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
return;
}
- if (unlikely(ctx->le_mode)) {
- /* Little-endian mode is not handled */
- gen_exception_err(ctx, POWERPC_EXCP_ALIGN, POWERPC_EXCP_ALIGN_LE);
- return;
- }
+
gen_set_access_type(ctx, ACCESS_INT);
EA = tcg_temp_new();
gen_addr_imm_index(ctx, EA, 0x0F);
- gen_qemu_ld64(ctx, cpu_gpr[rd], EA);
- gen_addr_add(ctx, EA, EA, 8);
- gen_qemu_ld64(ctx, cpu_gpr[rd+1], EA);
+
+ if (unlikely(ctx->le_mode)) {
+ gen_qemu_ld64(ctx, cpu_gpr[rd+1], EA);
+ gen_addr_add(ctx, EA, EA, 8);
+ gen_qemu_ld64(ctx, cpu_gpr[rd], EA);
+ } else {
+ gen_qemu_ld64(ctx, cpu_gpr[rd], EA);
+ gen_addr_add(ctx, EA, EA, 8);
+ gen_qemu_ld64(ctx, cpu_gpr[rd+1], EA);
+ }
tcg_temp_free(EA);
-#endif
}
#endif