target/arm: Stop unintentional sign extension in pmu_init

This was introduced by
    commit bf8d09694ccc07487cd73d7562081fdaec3370c8
    target/arm: Don't clear supported PMU events when initializing PMCEID1
and identified by Coverity (CID 1398645).

Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20190219144621.450-1-aaron@os.amperecomputing.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/target/arm/helper.c b/target/arm/helper.c
index fe054897c7891a2d8756dddbb3dfd3996d8845ea..c2630fa1ea4eef881745712f4d54d0a745413a13 100644 (file)
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -1167,7 +1167,7 @@ void pmu_init(ARMCPU *cpu)
 
         if (cnt->supported(&cpu->env)) {
             supported_event_map[cnt->number] = i;
-            uint64_t event_mask = 1 << (cnt->number & 0x1f);
+            uint64_t event_mask = 1ULL << (cnt->number & 0x1f);
             if (cnt->number & 0x20) {
                 cpu->pmceid1 |= event_mask;
             } else {