Add a sentinel to the X86ASIdx enum so it can be used when the total
number of address spaces is required.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
---
 target/i386/cpu.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index cee1f692a1..783ad66d74 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -2600,6 +2600,7 @@ void cpu_sync_avx_hflag(CPUX86State *env);
 typedef enum X86ASIdx {
     X86ASIdx_MEM = 0,
     X86ASIdx_SMM = 1,
+    X86ASIdx_MAX
 } X86ASIdx;
 
 #ifndef CONFIG_USER_ONLY
-- 
2.34.1