1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __KVM_X86_VMX_POSTED_INTR_H 3 #define __KVM_X86_VMX_POSTED_INTR_H 4 5 #define POSTED_INTR_ON 0 6 #define POSTED_INTR_SN 1 7 8 #define PID_TABLE_ENTRY_VALID 1 9 10 /* Posted-Interrupt Descriptor */ 11 struct pi_desc { 12 u32 pir[8]; /* Posted interrupt requested */ 13 union { 14 struct { 15 /* bit 256 - Outstanding Notification */ 16 u16 on : 1, 17 /* bit 257 - Suppress Notification */ 18 sn : 1, 19 /* bit 271:258 - Reserved */ 20 rsvd_1 : 14; 21 /* bit 279:272 - Notification Vector */ 22 u8 nv; 23 /* bit 287:280 - Reserved */ 24 u8 rsvd_2; 25 /* bit 319:288 - Notification Destination */ 26 u32 ndst; 27 }; 28 u64 control; 29 }; 30 u32 rsvd[6]; 31 } __aligned(64); 32 33 static inline bool pi_test_and_set_on(struct pi_desc *pi_desc) 34 { 35 return test_and_set_bit(POSTED_INTR_ON, 36 (unsigned long *)&pi_desc->control); 37 } 38 39 static inline bool pi_test_and_clear_on(struct pi_desc *pi_desc) 40 { 41 return test_and_clear_bit(POSTED_INTR_ON, 42 (unsigned long *)&pi_desc->control); 43 } 44 45 static inline bool pi_test_and_clear_sn(struct pi_desc *pi_desc) 46 { 47 return test_and_clear_bit(POSTED_INTR_SN, 48 (unsigned long *)&pi_desc->control); 49 } 50 51 static inline bool pi_test_and_set_pir(int vector, struct pi_desc *pi_desc) 52 { 53 return test_and_set_bit(vector, (unsigned long *)pi_desc->pir); 54 } 55 56 static inline bool pi_is_pir_empty(struct pi_desc *pi_desc) 57 { 58 return bitmap_empty((unsigned long *)pi_desc->pir, NR_VECTORS); 59 } 60 61 static inline void pi_set_sn(struct pi_desc *pi_desc) 62 { 63 set_bit(POSTED_INTR_SN, 64 (unsigned long *)&pi_desc->control); 65 } 66 67 static inline void pi_set_on(struct pi_desc *pi_desc) 68 { 69 set_bit(POSTED_INTR_ON, 70 (unsigned long *)&pi_desc->control); 71 } 72 73 static inline void pi_clear_on(struct pi_desc *pi_desc) 74 { 75 clear_bit(POSTED_INTR_ON, 76 (unsigned long *)&pi_desc->control); 77 } 78 79 static inline void pi_clear_sn(struct pi_desc *pi_desc) 80 { 81 clear_bit(POSTED_INTR_SN, 82 (unsigned long *)&pi_desc->control); 83 } 84 85 static inline bool pi_test_on(struct pi_desc *pi_desc) 86 { 87 return test_bit(POSTED_INTR_ON, 88 (unsigned long *)&pi_desc->control); 89 } 90 91 static inline bool pi_test_sn(struct pi_desc *pi_desc) 92 { 93 return test_bit(POSTED_INTR_SN, 94 (unsigned long *)&pi_desc->control); 95 } 96 97 void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu); 98 void vmx_vcpu_pi_put(struct kvm_vcpu *vcpu); 99 void pi_wakeup_handler(void); 100 void __init pi_init_cpu(int cpu); 101 bool pi_has_pending_interrupt(struct kvm_vcpu *vcpu); 102 int vmx_pi_update_irte(struct kvm *kvm, unsigned int host_irq, 103 uint32_t guest_irq, bool set); 104 void vmx_pi_start_assignment(struct kvm *kvm); 105 106 #endif /* __KVM_X86_VMX_POSTED_INTR_H */ 107