*
* KVM_X86_OP_OPTIONAL() can be used for those functions that can have
* a NULL definition, for example if "static_call_cond()" will be used
- * at the call sites.
+ * at the call sites. KVM_X86_OP_OPTIONAL_RET0() can be used likewise
+ * to make a definition optional, but in this case the default will
+ * be __static_call_return0.
*/
KVM_X86_OP(hardware_enable)
KVM_X86_OP(hardware_disable)
KVM_X86_OP(refresh_apicv_exec_ctrl)
KVM_X86_OP_OPTIONAL(hwapic_irr_update)
KVM_X86_OP_OPTIONAL(hwapic_isr_update)
-KVM_X86_OP_OPTIONAL(guest_apic_has_interrupt)
+KVM_X86_OP_OPTIONAL_RET0(guest_apic_has_interrupt)
KVM_X86_OP_OPTIONAL(load_eoi_exitmap)
KVM_X86_OP_OPTIONAL(set_virtual_apic_mode)
KVM_X86_OP_OPTIONAL(set_apic_access_page_addr)
KVM_X86_OP(deliver_interrupt)
KVM_X86_OP_OPTIONAL(sync_pir_to_irr)
-KVM_X86_OP(set_tss_addr)
-KVM_X86_OP(set_identity_map_addr)
-KVM_X86_OP(get_mt_mask)
+KVM_X86_OP_OPTIONAL_RET0(set_tss_addr)
+KVM_X86_OP_OPTIONAL_RET0(set_identity_map_addr)
+KVM_X86_OP_OPTIONAL_RET0(get_mt_mask)
KVM_X86_OP(load_mmu_pgd)
KVM_X86_OP(has_wbinvd_exit)
KVM_X86_OP(get_l2_tsc_offset)
KVM_X86_OP_OPTIONAL(pi_update_irte)
KVM_X86_OP_OPTIONAL(pi_start_assignment)
KVM_X86_OP_OPTIONAL(apicv_post_state_restore)
-KVM_X86_OP_OPTIONAL(dy_apicv_has_pending_interrupt)
+KVM_X86_OP_OPTIONAL_RET0(dy_apicv_has_pending_interrupt)
KVM_X86_OP_OPTIONAL(set_hv_timer)
KVM_X86_OP_OPTIONAL(cancel_hv_timer)
KVM_X86_OP(setup_mce)
#undef KVM_X86_OP
#undef KVM_X86_OP_OPTIONAL
+#undef KVM_X86_OP_OPTIONAL_RET0
#define KVM_X86_OP(func) \
DECLARE_STATIC_CALL(kvm_x86_##func, *(((struct kvm_x86_ops *)0)->func));
#define KVM_X86_OP_OPTIONAL KVM_X86_OP
+#define KVM_X86_OP_OPTIONAL_RET0 KVM_X86_OP
#include <asm/kvm-x86-ops.h>
static inline void kvm_ops_static_call_update(void)
#define KVM_X86_OP(func) \
WARN_ON(!kvm_x86_ops.func); __KVM_X86_OP(func)
#define KVM_X86_OP_OPTIONAL __KVM_X86_OP
+#define KVM_X86_OP_OPTIONAL_RET0(func) \
+ static_call_update(kvm_x86_##func, kvm_x86_ops.func ? : \
+ (void *) __static_call_return0);
#include <asm/kvm-x86-ops.h>
#undef __KVM_X86_OP
}
avic_set_pi_irte_mode(vcpu, activated);
}
-bool avic_dy_apicv_has_pending_interrupt(struct kvm_vcpu *vcpu)
-{
- return false;
-}
-
static void svm_ir_list_del(struct vcpu_svm *svm, struct amd_iommu_pi_data *pi)
{
unsigned long flags;
svm->vmcb->save.rflags |= (X86_EFLAGS_TF | X86_EFLAGS_RF);
}
-static int svm_set_tss_addr(struct kvm *kvm, unsigned int addr)
-{
- return 0;
-}
-
-static int svm_set_identity_map_addr(struct kvm *kvm, u64 ident_addr)
-{
- return 0;
-}
-
static void svm_flush_tlb_current(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
return true;
}
-static u64 svm_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio)
-{
- return 0;
-}
-
static void svm_vcpu_after_set_cpuid(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
.check_apicv_inhibit_reasons = avic_check_apicv_inhibit_reasons,
.apicv_post_state_restore = avic_apicv_post_state_restore,
- .set_tss_addr = svm_set_tss_addr,
- .set_identity_map_addr = svm_set_identity_map_addr,
- .get_mt_mask = svm_get_mt_mask,
-
.get_exit_info = svm_get_exit_info,
.vcpu_after_set_cpuid = svm_vcpu_after_set_cpuid,
.nested_ops = &svm_nested_ops,
.deliver_interrupt = svm_deliver_interrupt,
- .dy_apicv_has_pending_interrupt = avic_dy_apicv_has_pending_interrupt,
.pi_update_irte = avic_pi_update_irte,
.setup_mce = svm_setup_mce,
DEFINE_STATIC_CALL_NULL(kvm_x86_##func, \
*(((struct kvm_x86_ops *)0)->func));
#define KVM_X86_OP_OPTIONAL KVM_X86_OP
+#define KVM_X86_OP_OPTIONAL_RET0 KVM_X86_OP
#include <asm/kvm-x86-ops.h>
EXPORT_STATIC_CALL_GPL(kvm_x86_get_cs_db_l_bits);
EXPORT_STATIC_CALL_GPL(kvm_x86_cache_reg);
static inline bool kvm_guest_apic_has_interrupt(struct kvm_vcpu *vcpu)
{
return (is_guest_mode(vcpu) &&
- kvm_x86_ops.guest_apic_has_interrupt &&
- static_call(kvm_x86_guest_apic_has_interrupt)(vcpu));
+ static_call(kvm_x86_guest_apic_has_interrupt)(vcpu));
}
static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu)
{
return 0;
}
+EXPORT_SYMBOL_GPL(__static_call_return0);
#ifdef CONFIG_STATIC_CALL_SELFTEST