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[Qemu-devel] [PATCH 09/10] mipsn32-linux-user: Restrict address space to


From: Richard Henderson
Subject: [Qemu-devel] [PATCH 09/10] mipsn32-linux-user: Restrict address space to 31-bits.
Date: Sun, 10 Feb 2013 10:30:49 -0800

Signed-off-by: Richard Henderson <address@hidden>
---
 linux-user/main.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/linux-user/main.c b/linux-user/main.c
index 8c4dffd..25491ca 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -46,10 +46,10 @@ int gdbstub_port;
 envlist_t *envlist;
 const char *cpu_model;
 unsigned long mmap_min_addr;
+
 #if defined(CONFIG_USE_GUEST_BASE)
 unsigned long guest_base;
 int have_guest_base;
-#if (TARGET_LONG_BITS == 32) && (HOST_LONG_BITS == 64)
 /*
  * When running 32-on-64 we should make sure we can fit all of the possible
  * guest address space into a contiguous chunk of virtual host memory.
@@ -57,16 +57,16 @@ int have_guest_base;
  * This way we will never overlap with our own libraries or binaries or stack
  * or anything else that QEMU maps.
  */
-# ifdef TARGET_MIPS
+# if HOST_LONG_BITS == 64 \
+     && (defined(TARGET_ABI_MIPSO32) || defined(TARGET_ABI_MIPSN32))
 /* MIPS only supports 31 bits of virtual address space for user space */
-unsigned long reserved_va = 0x77000000;
-# else
+unsigned long reserved_va = 0x7f000000;
+# elif (TARGET_LONG_BITS == 32) && (HOST_LONG_BITS == 64)
 unsigned long reserved_va = 0xf7000000;
-# endif
 #else
 unsigned long reserved_va;
 #endif
-#endif
+#endif /* CONFIG_USE_GUEST_BASE */
 
 static void usage(void);
 
-- 
1.8.1.2




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