86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
/*
|
|
* Copyright (C) 2018 Intel Corporation. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef PTDEV_H
|
|
#define PTDEV_H
|
|
|
|
#define ACTIVE_FLAG 0x1U /* any non zero should be okay */
|
|
|
|
#define PTDEV_INTR_MSI (1U << 0U)
|
|
#define PTDEV_INTR_INTX (1U << 1U)
|
|
|
|
#define INVALID_PTDEV_ENTRY_ID 0xffffU
|
|
|
|
#define PTDEV_VPIN_IOAPIC 0x0U
|
|
#define PTDEV_VPIN_PIC 0x1U
|
|
|
|
#define DEFINE_MSI_SID(name, a, b) \
|
|
union source_id (name) = {.msi_id = {.bdf = (a), .entry_nr = (b)} }
|
|
|
|
#define DEFINE_IOAPIC_SID(name, a, b) \
|
|
union source_id (name) = {.intx_id = {.pin = (a), .src = (b)} }
|
|
|
|
union source_id {
|
|
uint32_t value;
|
|
struct {
|
|
uint16_t bdf;
|
|
uint16_t entry_nr;
|
|
} msi_id;
|
|
struct {
|
|
uint8_t pin;
|
|
uint8_t src;
|
|
uint16_t reserved;
|
|
} intx_id;
|
|
};
|
|
|
|
/* entry per guest virt vector */
|
|
struct ptirq_msi_info {
|
|
uint64_t vmsi_addr; /* virt msi_addr */
|
|
uint32_t vmsi_data; /* virt msi_data */
|
|
uint64_t pmsi_addr; /* phys msi_addr */
|
|
uint32_t pmsi_data; /* phys msi_data */
|
|
int32_t is_msix; /* 0-MSI, 1-MSIX */
|
|
};
|
|
|
|
/* entry per each allocated irq/vector
|
|
* it represents a pass-thru device's remapping data entry which collecting
|
|
* information related with its vm and msi/intx mapping & interaction nodes
|
|
* with interrupt handler and softirq.
|
|
*/
|
|
struct ptirq_remapping_info {
|
|
uint16_t ptdev_entry_id;
|
|
uint32_t intr_type;
|
|
union source_id phys_sid;
|
|
union source_id virt_sid;
|
|
struct acrn_vm *vm;
|
|
uint32_t active; /* 1=active, 0=inactive and to free*/
|
|
uint32_t allocated_pirq;
|
|
uint32_t polarity; /* 0=active high, 1=active low*/
|
|
struct list_head softirq_node;
|
|
struct ptirq_msi_info msi;
|
|
|
|
uint64_t intr_count;
|
|
struct hv_timer intr_delay_timer; /* used for delay intr injection */
|
|
};
|
|
|
|
extern struct ptirq_remapping_info ptirq_entries[CONFIG_MAX_PT_IRQ_ENTRIES];
|
|
extern spinlock_t ptdev_lock;
|
|
|
|
bool is_entry_active(const struct ptirq_remapping_info *entry);
|
|
void ptirq_softirq(uint16_t pcpu_id);
|
|
void ptdev_init(void);
|
|
void ptdev_release_all_entries(const struct acrn_vm *vm);
|
|
|
|
struct ptirq_remapping_info *ptirq_dequeue_softirq(struct acrn_vm *vm);
|
|
struct ptirq_remapping_info *ptirq_alloc_entry(struct acrn_vm *vm, uint32_t intr_type);
|
|
void ptirq_release_entry(struct ptirq_remapping_info *entry);
|
|
int32_t ptirq_activate_entry(struct ptirq_remapping_info *entry, uint32_t phys_irq);
|
|
void ptirq_deactivate_entry(struct ptirq_remapping_info *entry);
|
|
|
|
uint32_t ptirq_get_intr_data(const struct acrn_vm *target_vm, uint64_t *buffer, uint32_t buffer_cnt);
|
|
|
|
#endif /* PTDEV_H */
|