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-rw-r--r--target/nios2/cpu.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/target/nios2/cpu.h b/target/nios2/cpu.h
index 50d803a217..9119eee587 100644
--- a/target/nios2/cpu.h
+++ b/target/nios2/cpu.h
@@ -226,7 +226,11 @@ qemu_irq *nios2_cpu_pic_init(Nios2CPU *cpu);
void nios2_check_interrupts(CPUNios2State *env);
#define TARGET_PHYS_ADDR_SPACE_BITS 32
-#define TARGET_VIRT_ADDR_SPACE_BITS 32
+#ifdef CONFIG_USER_ONLY
+# define TARGET_VIRT_ADDR_SPACE_BITS 31
+#else
+# define TARGET_VIRT_ADDR_SPACE_BITS 32
+#endif
#define cpu_init(cpu_model) cpu_generic_init(TYPE_NIOS2_CPU, cpu_model)