[Qemu-devel] [PULL 07/10] linux-user/sh4: Reduce TARGET_VIRT_ADDR_SPACE_BITS to 31

[riku . voipio]

From: Richard Henderson <address@hidden>

The real kernel has TASK_SIZE as 0x7c000000, due to quirks with
a couple of SH parts.  But nominally user-space is limited to 2GB.

Signed-off-by: Richard Henderson <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>
---
 target/sh4/cpu.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/target/sh4/cpu.h b/target/sh4/cpu.h
index 79f85d3365..123f34783a 100644
--- a/target/sh4/cpu.h
+++ b/target/sh4/cpu.h
@@ -45,7 +45,11 @@
 #define TARGET_PAGE_BITS 12    /* 4k XXXXX */
 
 #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 SR_MD 30
 #define SR_RB 29
-- 
2.14.2