include/exec: Use uintptr_t in CPUTLBEntry

Since we no longer support 64-bit guests on 32-bit hosts,
we can use a 32-bit type on a 32-bit host.  This shrinks
the size of the structure to 16 bytes on a 32-bit host.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/include/exec/tlb-common.h b/include/exec/tlb-common.h
index dc5a5faa0b..03b5a8ffc7 100644
--- a/include/exec/tlb-common.h
+++ b/include/exec/tlb-common.h
@@ -19,14 +19,14 @@
 #ifndef EXEC_TLB_COMMON_H
 #define EXEC_TLB_COMMON_H 1
 
-#define CPU_TLB_ENTRY_BITS 5
+#define CPU_TLB_ENTRY_BITS (HOST_LONG_BITS == 32 ? 4 : 5)
 
 /* Minimalized TLB entry for use by TCG fast path. */
 typedef union CPUTLBEntry {
     struct {
-        uint64_t addr_read;
-        uint64_t addr_write;
-        uint64_t addr_code;
+        uintptr_t addr_read;
+        uintptr_t addr_write;
+        uintptr_t addr_code;
         /*
          * Addend to virtual address to get host address.  IO accesses
          * use the corresponding iotlb value.
@@ -37,7 +37,7 @@ typedef union CPUTLBEntry {
      * Padding to get a power of two size, as well as index
      * access to addr_{read,write,code}.
      */
-    uint64_t addr_idx[(1 << CPU_TLB_ENTRY_BITS) / sizeof(uint64_t)];
+    uintptr_t addr_idx[(1 << CPU_TLB_ENTRY_BITS) / sizeof(uintptr_t)];
 } CPUTLBEntry;
 
 QEMU_BUILD_BUG_ON(sizeof(CPUTLBEntry) != (1 << CPU_TLB_ENTRY_BITS));