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#include <linux/bitmap.h>
 6#include <asm/posted_intr.h>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 7
 8void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu);
 9void vmx_vcpu_pi_put(struct kvm_vcpu *vcpu);
10void pi_wakeup_handler(void);
11void __init pi_init_cpu(int cpu);
12bool pi_has_pending_interrupt(struct kvm_vcpu *vcpu);
13int vmx_pi_update_irte(struct kvm *kvm, unsigned int host_irq,
14		       uint32_t guest_irq, bool set);
15void vmx_pi_start_assignment(struct kvm *kvm);
16
17static inline int pi_find_highest_vector(struct pi_desc *pi_desc)
18{
19	int vec;
20
21	vec = find_last_bit((unsigned long *)pi_desc->pir, 256);
22	return vec < 256 ? vec : -1;
23}
24
25#endif /* __KVM_X86_VMX_POSTED_INTR_H */

  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 */
 11struct 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
 33static 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
 39static 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
 45static 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
 51static 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
 56static 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
 61static 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
 67static 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
 73static 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
 79static 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
 85static 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
 91static 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
 97void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu);
 98void vmx_vcpu_pi_put(struct kvm_vcpu *vcpu);
 99void pi_wakeup_handler(void);
100void __init pi_init_cpu(int cpu);
101bool pi_has_pending_interrupt(struct kvm_vcpu *vcpu);
102int vmx_pi_update_irte(struct kvm *kvm, unsigned int host_irq,
103		       uint32_t guest_irq, bool set);
104void vmx_pi_start_assignment(struct kvm *kvm);
 
 
 
 
 
 
 
 
105
106#endif /* __KVM_X86_VMX_POSTED_INTR_H */