diff options
| -rw-r--r-- | accel/kvm/kvm-all.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index f24d7da783..d54a8701d8 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -101,7 +101,7 @@ struct KVMState bool kernel_irqchip_required; OnOffAuto kernel_irqchip_split; bool sync_mmu; - bool manual_dirty_log_protect; + uint64_t manual_dirty_log_protect; /* The man page (and posix) say ioctl numbers are signed int, but * they're not. Linux, glibc and *BSD all treat ioctl numbers as * unsigned, and treating them as signed here can break things */ @@ -1995,6 +1995,7 @@ static int kvm_init(MachineState *ms) int ret; int type = 0; const char *kvm_type; + uint64_t dirty_log_manual_caps; s = KVM_STATE(ms->accelerator); @@ -2120,14 +2121,20 @@ static int kvm_init(MachineState *ms) s->coalesced_pio = s->coalesced_mmio && kvm_check_extension(s, KVM_CAP_COALESCED_PIO); - s->manual_dirty_log_protect = + dirty_log_manual_caps = kvm_check_extension(s, KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2); - if (s->manual_dirty_log_protect) { - ret = kvm_vm_enable_cap(s, KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2, 0, 1); + dirty_log_manual_caps &= (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE | + KVM_DIRTY_LOG_INITIALLY_SET); + s->manual_dirty_log_protect = dirty_log_manual_caps; + if (dirty_log_manual_caps) { + ret = kvm_vm_enable_cap(s, KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2, 0, + dirty_log_manual_caps); if (ret) { - warn_report("Trying to enable KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 " - "but failed. Falling back to the legacy mode. "); - s->manual_dirty_log_protect = false; + warn_report("Trying to enable capability %"PRIu64" of " + "KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 but failed. " + "Falling back to the legacy mode. ", + dirty_log_manual_caps); + s->manual_dirty_log_protect = 0; } } |