diff options
Diffstat (limited to 'arch/riscv/include/asm/kvm_host.h')
| -rw-r--r-- | arch/riscv/include/asm/kvm_host.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index 0db663cf74e4..e307528bbdbf 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -127,6 +127,21 @@ struct kvm_vcpu_arch { /* CPU CSR context upon Guest VCPU reset */ struct kvm_vcpu_csr guest_reset_csr; + /* + * VCPU interrupts + * + * We have a lockless approach for tracking pending VCPU interrupts + * implemented using atomic bitops. The irqs_pending bitmap represent + * pending interrupts whereas irqs_pending_mask represent bits changed + * in irqs_pending. Our approach is modeled around multiple producer + * and single consumer problem where the consumer is the VCPU itself. + */ + unsigned long irqs_pending; + unsigned long irqs_pending_mask; + + /* VCPU power-off state */ + bool power_off; + /* Don't run the VCPU (blocked) */ bool pause; @@ -150,4 +165,12 @@ int kvm_riscv_vcpu_exit(struct kvm_vcpu *vcpu, struct kvm_run *run, static inline void __kvm_riscv_switch_to(struct kvm_vcpu_arch *vcpu_arch) {} +int kvm_riscv_vcpu_set_interrupt(struct kvm_vcpu *vcpu, unsigned int irq); +int kvm_riscv_vcpu_unset_interrupt(struct kvm_vcpu *vcpu, unsigned int irq); +void kvm_riscv_vcpu_flush_interrupts(struct kvm_vcpu *vcpu); +void kvm_riscv_vcpu_sync_interrupts(struct kvm_vcpu *vcpu); +bool kvm_riscv_vcpu_has_interrupts(struct kvm_vcpu *vcpu, unsigned long mask); +void kvm_riscv_vcpu_power_off(struct kvm_vcpu *vcpu); +void kvm_riscv_vcpu_power_on(struct kvm_vcpu *vcpu); + #endif /* __RISCV_KVM_HOST_H__ */ |