diff options
| -rw-r--r-- | accel/kvm/kvm-all.c | 1 | ||||
| -rw-r--r-- | include/sysemu/kvm_int.h | 1 | ||||
| -rw-r--r-- | include/sysemu/kvm_xen.h | 1 | ||||
| -rw-r--r-- | target/i386/kvm/kvm.c | 34 | ||||
| -rw-r--r-- | target/i386/kvm/xen-emu.c | 6 |
5 files changed, 43 insertions, 0 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 511d3eb..3d8e400 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -3704,6 +3704,7 @@ static void kvm_accel_instance_init(Object *obj) s->notify_vmexit = NOTIFY_VMEXIT_OPTION_RUN; s->notify_window = 0; s->xen_version = 0; + s->xen_gnttab_max_frames = 64; } /** diff --git a/include/sysemu/kvm_int.h b/include/sysemu/kvm_int.h index 7f945bc..39ce4d3 100644 --- a/include/sysemu/kvm_int.h +++ b/include/sysemu/kvm_int.h @@ -120,6 +120,7 @@ struct KVMState uint32_t notify_window; uint32_t xen_version; uint32_t xen_caps; + uint16_t xen_gnttab_max_frames; }; void kvm_memory_listener_register(KVMState *s, KVMMemoryListener *kml, diff --git a/include/sysemu/kvm_xen.h b/include/sysemu/kvm_xen.h index 2b20030..49afa0e 100644 --- a/include/sysemu/kvm_xen.h +++ b/include/sysemu/kvm_xen.h @@ -25,6 +25,7 @@ void *kvm_xen_get_vcpu_info_hva(uint32_t vcpu_id); void kvm_xen_inject_vcpu_callback_vector(uint32_t vcpu_id, int type); void kvm_xen_set_callback_asserted(void); int kvm_xen_set_vcpu_virq(uint32_t vcpu_id, uint16_t virq, uint16_t port); +uint16_t kvm_xen_get_gnttab_max_frames(void); #define kvm_xen_has_cap(cap) (!!(kvm_xen_get_caps() & \ KVM_XEN_HVM_CONFIG_ ## cap)) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 3c37955..a73c49a 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -5880,6 +5880,33 @@ static void kvm_arch_set_xen_version(Object *obj, Visitor *v, } } +static void kvm_arch_get_xen_gnttab_max_frames(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + KVMState *s = KVM_STATE(obj); + uint16_t value = s->xen_gnttab_max_frames; + + visit_type_uint16(v, name, &value, errp); +} + +static void kvm_arch_set_xen_gnttab_max_frames(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + KVMState *s = KVM_STATE(obj); + Error *error = NULL; + uint16_t value; + + visit_type_uint16(v, name, &value, &error); + if (error) { + error_propagate(errp, error); + return; + } + + s->xen_gnttab_max_frames = value; +} + void kvm_arch_accel_class_init(ObjectClass *oc) { object_class_property_add_enum(oc, "notify-vmexit", "NotifyVMexitOption", @@ -5905,6 +5932,13 @@ void kvm_arch_accel_class_init(ObjectClass *oc) "Xen version to be emulated " "(in XENVER_version form " "e.g. 0x4000a for 4.10)"); + + object_class_property_add(oc, "xen-gnttab-max-frames", "uint16", + kvm_arch_get_xen_gnttab_max_frames, + kvm_arch_set_xen_gnttab_max_frames, + NULL, NULL); + object_class_property_set_description(oc, "xen-gnttab-max-frames", + "Maximum number of grant table frames"); } void kvm_set_max_apic_id(uint32_t max_apic_id) diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c index 9e22c9f..46be631 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -1238,6 +1238,12 @@ int kvm_xen_handle_exit(X86CPU *cpu, struct kvm_xen_exit *exit) return 0; } +uint16_t kvm_xen_get_gnttab_max_frames(void) +{ + KVMState *s = KVM_STATE(current_accel()); + return s->xen_gnttab_max_frames; +} + int kvm_put_xen_state(CPUState *cs) { X86CPU *cpu = X86_CPU(cs); |