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[Qemu-devel] [PATCH 1/3] target-arm: Add ULL suffix to calculation of pa


From: Peter Maydell
Subject: [Qemu-devel] [PATCH 1/3] target-arm: Add ULL suffix to calculation of page size
Date: Sat, 7 Jun 2014 21:11:19 +0100

The maximum block size for AArch64 address translation is 2GB. This means
that we need a ULL suffix on our shift to avoid shifting into the sign
bit of a signed 32 bit integer.

Signed-off-by: Peter Maydell <address@hidden>
---
 target-arm/helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target-arm/helper.c b/target-arm/helper.c
index ec031f5..cbad223 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -3926,7 +3926,7 @@ static int get_phys_addr_lpae(CPUARMState *env, 
target_ulong address,
          * These are basically the same thing, although the number
          * of bits we pull in from the vaddr varies.
          */
-        page_size = (1 << ((granule_sz * (4 - level)) + 3));
+        page_size = (1ULL << ((granule_sz * (4 - level)) + 3));
         descaddr |= (address & (page_size - 1));
         /* Extract attributes from the descriptor and merge with table attrs */
         if (arm_feature(env, ARM_FEATURE_V8)) {
-- 
1.8.5.4




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