diff options
| author | Jason Wang <jasowang@redhat.com> | 2015-11-06 16:02:46 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-11-12 15:49:32 +0200 |
| commit | 351082238d5d45d6836ec94eabe3fe7d72b36f46 (patch) | |
| tree | 85e6958eb2c0ba9a38fe19ac953e09d563a0d7ab | |
| parent | b8aecea23aaccf39da54c77ef248f5fa50dcfbc1 (diff) | |
KVM: add support for any length io eventfd
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | include/sysemu/kvm.h | 8 | ||||
| -rw-r--r-- | kvm-all.c | 4 | ||||
| -rw-r--r-- | kvm-stub.c | 1 |
3 files changed, 13 insertions, 0 deletions
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index 4ac6176879..b31f325fa2 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -53,6 +53,7 @@ extern bool kvm_gsi_routing_allowed; extern bool kvm_gsi_direct_mapping; extern bool kvm_readonly_mem_allowed; extern bool kvm_direct_msi_allowed; +extern bool kvm_ioeventfd_any_length_allowed; #if defined CONFIG_KVM || !defined NEED_CPU_H #define kvm_enabled() (kvm_allowed) @@ -153,6 +154,12 @@ extern bool kvm_direct_msi_allowed; */ #define kvm_direct_msi_enabled() (kvm_direct_msi_allowed) +/** + * kvm_ioeventfd_any_length_enabled: + * Returns: true if KVM allows any length io eventfd. + */ +#define kvm_ioeventfd_any_length_enabled() (kvm_ioeventfd_any_length_allowed) + #else #define kvm_enabled() (0) #define kvm_irqchip_in_kernel() (false) @@ -166,6 +173,7 @@ extern bool kvm_direct_msi_allowed; #define kvm_gsi_direct_mapping() (false) #define kvm_readonly_mem_enabled() (false) #define kvm_direct_msi_enabled() (false) +#define kvm_ioeventfd_any_length_enabled() (false) #endif struct kvm_run; @@ -109,6 +109,7 @@ bool kvm_allowed; bool kvm_readonly_mem_allowed; bool kvm_vm_attributes_allowed; bool kvm_direct_msi_allowed; +bool kvm_ioeventfd_any_length_allowed; static const KVMCapabilityInfo kvm_required_capabilites[] = { KVM_CAP_INFO(USER_MEMORY), @@ -1611,6 +1612,9 @@ static int kvm_init(MachineState *ms) 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); + ret = kvm_arch_init(ms, s); if (ret < 0) { goto err; diff --git a/kvm-stub.c b/kvm-stub.c index a5051f7c6e..dc97a5edf1 100644 --- a/kvm-stub.c +++ b/kvm-stub.c @@ -30,6 +30,7 @@ bool kvm_gsi_routing_allowed; bool kvm_gsi_direct_mapping; bool kvm_allowed; bool kvm_readonly_mem_allowed; +bool kvm_ioeventfd_any_length_allowed; int kvm_init_vcpu(CPUState *cpu) { |