[PATCH 02/11] target/ppc: add macros to check privilege level

[Lucas Coutinho]

From: Matheus Ferst <matheus.ferst@eldorado.org.br>

Equivalent to CHK_SV and CHK_HV, but can be used in decodetree methods.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Signed-off-by: Lucas Coutinho <lucas.coutinho@eldorado.org.br>
---
 target/ppc/translate.c                     | 21 +++++++++++++++++++++
 target/ppc/translate/fixedpoint-impl.c.inc |  7 ++-----
 2 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 920bb543cf..508ef6660d 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -6575,6 +6575,27 @@ static int times_16(DisasContext *ctx, int x)
         }                                               \
     } while (0)
 
+#if !defined(CONFIG_USER_ONLY)
+#define REQUIRE_SV(CTX)             \
+    do {                            \
+        if (unlikely((CTX)->pr)) {  \
+            gen_priv_opc(CTX);      \
+            return true;            \
+        }                           \
+    } while (0)
+
+#define REQUIRE_HV(CTX)                         \
+    do {                                        \
+        if (unlikely((CTX)->pr || !(CTX)->hv))  \
+            gen_priv_opc(CTX);                  \
+            return true;                        \
+        }                                       \
+    } while (0)
+#else
+#define REQUIRE_SV(CTX) do { gen_priv_opc(CTX); return true; } while (0)
+#define REQUIRE_HV(CTX) do { gen_priv_opc(CTX); return true; } while (0)
+#endif
+
 /*
  * Helpers for implementing sets of trans_* functions.
  * Defer the implementation of NAME to FUNC, with optional extra arguments.
diff --git a/target/ppc/translate/fixedpoint-impl.c.inc 
b/target/ppc/translate/fixedpoint-impl.c.inc
index 1aab32be03..77d449c3cd 100644
--- a/target/ppc/translate/fixedpoint-impl.c.inc
+++ b/target/ppc/translate/fixedpoint-impl.c.inc
@@ -79,11 +79,8 @@ static bool do_ldst_quad(DisasContext *ctx, arg_D *a, bool 
store, bool prefixed)
     REQUIRE_INSNS_FLAGS(ctx, 64BX);
 
     if (!prefixed && !(ctx->insns_flags2 & PPC2_LSQ_ISA207)) {
-        if (ctx->pr) {
-            /* lq and stq were privileged prior to V. 2.07 */
-            gen_priv_exception(ctx, POWERPC_EXCP_PRIV_OPC);
-            return true;
-        }
+        /* lq and stq were privileged prior to V. 2.07 */
+        REQUIRE_SV(ctx);
 
         if (ctx->le_mode) {
             gen_align_no_le(ctx);
-- 
2.25.1