From 0bc2a331e476c6c834278b8dcc17408a3f0d8f6a Mon Sep 17 00:00:00 2001 From: Alvise Rigo Date: Fri, 11 Oct 2013 19:38:45 +0200 Subject: [PATCH] target-arm: fix sorting issue of KVM cpreg list The compare_u64 function was not sorting the KVM cpreg_list in the right way due to the wrong returned value. Since we are comparing two 64bit values we can't simply return their difference if the returned type is int. Signed-off-by: Alvise Rigo Message-id: 1381513125-26802-2-git-send-email-a.rigo@virtualopensystems.com [PMM: fixed coding style, indent and commit message formatting] Signed-off-by: Peter Maydell --- target-arm/kvm.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/target-arm/kvm.c b/target-arm/kvm.c index b92e00dae0..6e5cd36fae 100644 --- a/target-arm/kvm.c +++ b/target-arm/kvm.c @@ -67,7 +67,13 @@ static bool reg_syncs_via_tuple_list(uint64_t regidx) static int compare_u64(const void *a, const void *b) { - return *(uint64_t *)a - *(uint64_t *)b; + if (*(uint64_t *)a > *(uint64_t *)b) { + return 1; + } + if (*(uint64_t *)a < *(uint64_t *)b) { + return -1; + } + return 0; } int kvm_arch_init_vcpu(CPUState *cs)