diff options
Diffstat (limited to 'kvm-all.c')
| -rw-r--r-- | kvm-all.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/kvm-all.c b/kvm-all.c index e7faf5cba9..4c466d6aba 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -64,6 +64,7 @@ struct KVMState int vmfd; int coalesced_mmio; struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; + bool coalesced_flush_in_progress; int broken_set_mem_region; int migration_log; int vcpu_events; @@ -739,6 +740,7 @@ int kvm_init(void) fprintf(stderr, "Please add the 'switch_amode' kernel parameter to " "your host kernel command line\n"); #endif + ret = s->vmfd; goto err; } @@ -797,7 +799,7 @@ int kvm_init(void) err: if (s) { - if (s->vmfd != -1) { + if (s->vmfd >= 0) { close(s->vmfd); } if (s->fd != -1) { @@ -876,6 +878,13 @@ static int kvm_handle_internal_error(CPUState *env, struct kvm_run *run) void kvm_flush_coalesced_mmio_buffer(void) { KVMState *s = kvm_state; + + if (s->coalesced_flush_in_progress) { + return; + } + + s->coalesced_flush_in_progress = true; + if (s->coalesced_mmio_ring) { struct kvm_coalesced_mmio_ring *ring = s->coalesced_mmio_ring; while (ring->first != ring->last) { @@ -888,6 +897,8 @@ void kvm_flush_coalesced_mmio_buffer(void) ring->first = (ring->first + 1) % KVM_COALESCED_MMIO_MAX; } } + + s->coalesced_flush_in_progress = false; } static void do_kvm_cpu_synchronize_state(void *_env) |