105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/* 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 bool pi_test_and_clear_sn(struct pi_desc *pi_desc)
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{
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return test_and_clear_bit(POSTED_INTR_SN,
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(unsigned long *)&pi_desc->control);
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}
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static inline bool 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 bool 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 bool 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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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 vmx_pi_update_irte(struct kvm *kvm, unsigned int host_irq,
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uint32_t guest_irq, 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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