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100 lines
2.4 KiB
100 lines
2.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __KVM_X86_VMX_POSTED_INTR_H |
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#define __KVM_X86_VMX_POSTED_INTR_H |
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#define POSTED_INTR_ON 0 |
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#define POSTED_INTR_SN 1 |
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/* Posted-Interrupt Descriptor */ |
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struct pi_desc { |
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u32 pir[8]; /* Posted interrupt requested */ |
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union { |
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struct { |
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/* bit 256 - Outstanding Notification */ |
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u16 on : 1, |
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/* bit 257 - Suppress Notification */ |
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sn : 1, |
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/* bit 271:258 - Reserved */ |
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rsvd_1 : 14; |
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/* bit 279:272 - Notification Vector */ |
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u8 nv; |
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/* bit 287:280 - Reserved */ |
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u8 rsvd_2; |
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/* bit 319:288 - Notification Destination */ |
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u32 ndst; |
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}; |
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u64 control; |
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}; |
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u32 rsvd[6]; |
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} __aligned(64); |
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static inline bool pi_test_and_set_on(struct pi_desc *pi_desc) |
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{ |
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return test_and_set_bit(POSTED_INTR_ON, |
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(unsigned long *)&pi_desc->control); |
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} |
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static inline bool pi_test_and_clear_on(struct pi_desc *pi_desc) |
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{ |
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return test_and_clear_bit(POSTED_INTR_ON, |
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(unsigned long *)&pi_desc->control); |
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} |
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static inline int pi_test_and_set_pir(int vector, struct pi_desc *pi_desc) |
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{ |
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return test_and_set_bit(vector, (unsigned long *)pi_desc->pir); |
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} |
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static inline bool pi_is_pir_empty(struct pi_desc *pi_desc) |
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{ |
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return bitmap_empty((unsigned long *)pi_desc->pir, NR_VECTORS); |
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} |
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static inline void pi_set_sn(struct pi_desc *pi_desc) |
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{ |
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set_bit(POSTED_INTR_SN, |
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(unsigned long *)&pi_desc->control); |
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} |
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static inline void pi_set_on(struct pi_desc *pi_desc) |
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{ |
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set_bit(POSTED_INTR_ON, |
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(unsigned long *)&pi_desc->control); |
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} |
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static inline void pi_clear_on(struct pi_desc *pi_desc) |
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{ |
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clear_bit(POSTED_INTR_ON, |
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(unsigned long *)&pi_desc->control); |
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} |
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static inline void pi_clear_sn(struct pi_desc *pi_desc) |
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{ |
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clear_bit(POSTED_INTR_SN, |
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(unsigned long *)&pi_desc->control); |
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} |
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static inline int pi_test_on(struct pi_desc *pi_desc) |
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{ |
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return test_bit(POSTED_INTR_ON, |
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(unsigned long *)&pi_desc->control); |
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} |
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static inline int pi_test_sn(struct pi_desc *pi_desc) |
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{ |
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return test_bit(POSTED_INTR_SN, |
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(unsigned long *)&pi_desc->control); |
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} |
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void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu); |
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void vmx_vcpu_pi_put(struct kvm_vcpu *vcpu); |
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int pi_pre_block(struct kvm_vcpu *vcpu); |
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void pi_post_block(struct kvm_vcpu *vcpu); |
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void pi_wakeup_handler(void); |
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void __init pi_init_cpu(int cpu); |
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bool pi_has_pending_interrupt(struct kvm_vcpu *vcpu); |
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int pi_update_irte(struct kvm *kvm, unsigned int host_irq, uint32_t guest_irq, |
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bool set); |
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void vmx_pi_start_assignment(struct kvm *kvm); |
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#endif /* __KVM_X86_VMX_POSTED_INTR_H */
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