diff options
| -rw-r--r-- | accel/kvm/kvm-all.c | 42 |
1 files changed, 1 insertions, 41 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index f85553a851..985b179ab6 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -79,7 +79,6 @@ struct KVMState int coalesced_mmio; struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; bool coalesced_flush_in_progress; - int broken_set_mem_region; int vcpu_events; int robust_singlestep; int debugregs; @@ -127,6 +126,7 @@ static bool kvm_immediate_exit; static const KVMCapabilityInfo kvm_required_capabilites[] = { KVM_CAP_INFO(USER_MEMORY), KVM_CAP_INFO(DESTROY_MEMORY_REGION_WORKS), + KVM_CAP_INFO(JOIN_MEMORY_REGIONS_WORKS), KVM_CAP_LAST_INFO }; @@ -696,7 +696,6 @@ kvm_check_extension_list(KVMState *s, const KVMCapabilityInfo *list) static void kvm_set_phys_mem(KVMMemoryListener *kml, MemoryRegionSection *section, bool add) { - KVMState *s = kvm_state; KVMSlot *mem, old; int err; MemoryRegion *mr = section->mr; @@ -763,35 +762,6 @@ static void kvm_set_phys_mem(KVMMemoryListener *kml, abort(); } - /* Workaround for older KVM versions: we can't join slots, even not by - * unregistering the previous ones and then registering the larger - * slot. We have to maintain the existing fragmentation. Sigh. - * - * This workaround assumes that the new slot starts at the same - * address as the first existing one. If not or if some overlapping - * slot comes around later, we will fail (not seen in practice so far) - * - and actually require a recent KVM version. */ - if (s->broken_set_mem_region && - old.start_addr == start_addr && old.memory_size < size && add) { - mem = kvm_alloc_slot(kml); - mem->memory_size = old.memory_size; - mem->start_addr = old.start_addr; - mem->ram = old.ram; - mem->flags = kvm_mem_flags(mr); - - err = kvm_set_user_memory_region(kml, mem); - if (err) { - fprintf(stderr, "%s: error updating slot: %s\n", __func__, - strerror(-err)); - abort(); - } - - start_addr += old.memory_size; - ram += old.memory_size; - size -= old.memory_size; - continue; - } - /* register prefix slot */ if (old.start_addr < start_addr) { mem = kvm_alloc_slot(kml); @@ -833,10 +803,6 @@ static void kvm_set_phys_mem(KVMMemoryListener *kml, } } - /* in case the KVM bug workaround already "consumed" the new slot */ - if (!size) { - return; - } if (!add) { return; } @@ -1692,12 +1658,6 @@ static int kvm_init(MachineState *ms) s->coalesced_mmio = kvm_check_extension(s, KVM_CAP_COALESCED_MMIO); - s->broken_set_mem_region = 1; - ret = kvm_check_extension(s, KVM_CAP_JOIN_MEMORY_REGIONS_WORKS); - if (ret > 0) { - s->broken_set_mem_region = 0; - } - #ifdef KVM_CAP_VCPU_EVENTS s->vcpu_events = kvm_check_extension(s, KVM_CAP_VCPU_EVENTS); #endif |