diff options
| -rw-r--r-- | target-i386/topology.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/target-i386/topology.h b/target-i386/topology.h index 24ed525453..07a6c5fb55 100644 --- a/target-i386/topology.h +++ b/target-i386/topology.h @@ -52,10 +52,8 @@ typedef uint32_t apic_id_t; static unsigned apicid_bitwidth_for_count(unsigned count) { g_assert(count >= 1); - if (count == 1) { - return 0; - } - return bitops_flsl(count - 1) + 1; + count -= 1; + return count ? 32 - clz32(count) : 0; } /* Bit width of the SMT_ID (thread ID) field on the APIC ID |