[PATCH] target/arm: Restrict translation disabled alignment check to VMSA

[Richard Henderson <richard.henderson@linaro.org>]

For cpus using PMSA, when the MPU is disabled, the default memory
type is Normal, Non-cachable.

Fixes: 59754f85ed3 ("target/arm: Do memory type alignment check when translation disabled")
Reported-by: Clément Chigot <chigot@adacore.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---

Since v9 will likely be tagged tomorrow without this fixed,
Cc: qemu-stable@nongnu.org

---
 target/arm/tcg/hflags.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/target/arm/tcg/hflags.c b/target/arm/tcg/hflags.c
index 5da1b0fc1d..66de30b828 100644
--- a/target/arm/tcg/hflags.c
+++ b/target/arm/tcg/hflags.c
@@ -38,8 +38,16 @@ static bool aprofile_require_alignment(CPUARMState *env, int el, uint64_t sctlr)
     }
 
     /*
-     * If translation is disabled, then the default memory type is
-     * Device(-nGnRnE) instead of Normal, which requires that alignment
+     * With PMSA, when the MPU is disabled, all memory types in the
+     * default map is Normal.
+     */
+    if (arm_feature(env, ARM_FEATURE_PMSA)) {
+        return false;
+    }
+
+    /*
+     * With VMSA, if translation is disabled, then the default memory type
+     * is Device(-nGnRnE) instead of Normal, which requires that alignment
      * be enforced.  Since this affects all ram, it is most efficient
      * to handle this during translation.
      */
-- 
2.34.1