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| author | Paolo Bonzini <pbonzini@redhat.com> | 2023-10-17 14:13:04 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-10-25 17:35:15 +0200 |
| commit | 126e7f780367b0263d9a112729736d6a0bd6d441 (patch) | |
| tree | 0aef67081b061d11b1c2351aff7978abcdd0fdb4 /accel | |
| parent | 5d9ec1f4c78ed25720b4fd01ddcddb00db50fa6c (diff) | |
| download | qemu-126e7f780367b0263d9a112729736d6a0bd6d441.zip qemu-126e7f780367b0263d9a112729736d6a0bd6d441.tar.gz qemu-126e7f780367b0263d9a112729736d6a0bd6d441.tar.bz2 | |
kvm: require KVM_CAP_IOEVENTFD and KVM_CAP_IOEVENTFD_ANY_LENGTH
KVM_CAP_IOEVENTFD_ANY_LENGTH was added in Linux 4.4, released in 2016.
Assume that it is present.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'accel')
| -rw-r--r-- | accel/kvm/kvm-all.c | 22 | ||||
| -rw-r--r-- | accel/stubs/kvm-stub.c | 2 |
2 files changed, 6 insertions, 18 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 05be687..120051d 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -90,7 +90,6 @@ bool kvm_kernel_irqchip; bool kvm_split_irqchip; bool kvm_async_interrupts_allowed; bool kvm_halt_in_kernel_allowed; -bool kvm_eventfds_allowed; bool kvm_resamplefds_allowed; bool kvm_msi_via_irqfd_allowed; bool kvm_gsi_routing_allowed; @@ -98,7 +97,6 @@ bool kvm_gsi_direct_mapping; bool kvm_allowed; bool kvm_readonly_mem_allowed; bool kvm_vm_attributes_allowed; -bool kvm_ioeventfd_any_length_allowed; bool kvm_msi_use_devid; bool kvm_has_guest_debug; static int kvm_sstep_flags; @@ -110,6 +108,8 @@ static const KVMCapabilityInfo kvm_required_capabilites[] = { KVM_CAP_INFO(DESTROY_MEMORY_REGION_WORKS), KVM_CAP_INFO(JOIN_MEMORY_REGIONS_WORKS), KVM_CAP_INFO(INTERNAL_ERROR_DATA), + KVM_CAP_INFO(IOEVENTFD), + KVM_CAP_INFO(IOEVENTFD_ANY_LENGTH), KVM_CAP_LAST_INFO }; @@ -2547,18 +2547,12 @@ static int kvm_init(MachineState *ms) kvm_readonly_mem_allowed = (kvm_check_extension(s, KVM_CAP_READONLY_MEM) > 0); - kvm_eventfds_allowed = - (kvm_check_extension(s, KVM_CAP_IOEVENTFD) > 0); - kvm_resamplefds_allowed = (kvm_check_extension(s, KVM_CAP_IRQFD_RESAMPLE) > 0); kvm_vm_attributes_allowed = (kvm_check_extension(s, KVM_CAP_VM_ATTRIBUTES) > 0); - kvm_ioeventfd_any_length_allowed = - (kvm_check_extension(s, KVM_CAP_IOEVENTFD_ANY_LENGTH) > 0); - #ifdef KVM_CAP_SET_GUEST_DEBUG kvm_has_guest_debug = (kvm_check_extension(s, KVM_CAP_SET_GUEST_DEBUG) > 0); @@ -2595,19 +2589,15 @@ static int kvm_init(MachineState *ms) kvm_irqchip_create(s); } - if (kvm_eventfds_allowed) { - s->memory_listener.listener.eventfd_add = kvm_mem_ioeventfd_add; - s->memory_listener.listener.eventfd_del = kvm_mem_ioeventfd_del; - } + s->memory_listener.listener.eventfd_add = kvm_mem_ioeventfd_add; + s->memory_listener.listener.eventfd_del = kvm_mem_ioeventfd_del; s->memory_listener.listener.coalesced_io_add = kvm_coalesce_mmio_region; s->memory_listener.listener.coalesced_io_del = kvm_uncoalesce_mmio_region; kvm_memory_listener_register(s, &s->memory_listener, &address_space_memory, 0, "kvm-memory"); - if (kvm_eventfds_allowed) { - memory_listener_register(&kvm_io_listener, - &address_space_io); - } + memory_listener_register(&kvm_io_listener, + &address_space_io); memory_listener_register(&kvm_coalesced_pio_listener, &address_space_io); diff --git a/accel/stubs/kvm-stub.c b/accel/stubs/kvm-stub.c index b2d8885..1b37d9a 100644 --- a/accel/stubs/kvm-stub.c +++ b/accel/stubs/kvm-stub.c @@ -17,14 +17,12 @@ KVMState *kvm_state; bool kvm_kernel_irqchip; bool kvm_async_interrupts_allowed; -bool kvm_eventfds_allowed; bool kvm_resamplefds_allowed; bool kvm_msi_via_irqfd_allowed; bool kvm_gsi_routing_allowed; bool kvm_gsi_direct_mapping; bool kvm_allowed; bool kvm_readonly_mem_allowed; -bool kvm_ioeventfd_any_length_allowed; bool kvm_msi_use_devid; void kvm_flush_coalesced_mmio_buffer(void) |