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https://github.com/projectacrn/acrn-hypervisor.git
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977c4b20b5
MISRA C required that return value should be used, missing for it should add "(void)" prefix before the function call. Some function can be declared without return value to avoid this problem. Signed-off-by: Huihuang Shi <huihuang.shi@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef PTDEV_H
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#define PTDEV_H
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#define ACTIVE_FLAG 0x1 /* any non zero should be okay */
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enum ptdev_intr_type {
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PTDEV_INTR_MSI,
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PTDEV_INTR_INTX,
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PTDEV_INTR_INV,
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};
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enum ptdev_vpin_source {
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PTDEV_VPIN_IOAPIC,
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PTDEV_VPIN_PIC,
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};
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/* entry per guest virt vector */
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struct ptdev_msi_info {
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uint32_t vmsi_addr; /* virt msi_addr */
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uint32_t vmsi_data; /* virt msi_data */
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uint16_t vmsi_ctl; /* virt msi_ctl */
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uint32_t pmsi_addr; /* phys msi_addr */
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uint32_t pmsi_data; /* phys msi_data */
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int msix; /* 0-MSI, 1-MSIX */
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int msix_entry_index; /* MSI: 0, MSIX: index of vector table*/
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int virt_vector;
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int phys_vector;
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};
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/* entry per guest vioapic pin */
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struct ptdev_intx_info {
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enum ptdev_vpin_source vpin_src;
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uint8_t virt_pin;
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uint8_t phys_pin;
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};
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/* entry per each allocated irq/vector
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* it represents a pass-thru device's remapping data entry which collecting
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* information related with its vm and msi/intx mapping & interaction nodes
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* with interrupt handler and softirq.
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*/
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struct ptdev_remapping_info {
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struct vm *vm;
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uint16_t virt_bdf; /* PCI bus:slot.func*/
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uint16_t phys_bdf; /* PCI bus:slot.func*/
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uint32_t active; /* 1=active, 0=inactive and to free*/
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enum ptdev_intr_type type;
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struct dev_handler_node *node;
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struct list_head softirq_node;
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struct list_head entry_node;
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union {
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struct ptdev_msi_info msi;
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struct ptdev_intx_info intx;
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} ptdev_intr_info;
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};
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extern struct list_head softirq_dev_entry_list;
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extern struct list_head ptdev_list;
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extern spinlock_t ptdev_lock;
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extern struct ptdev_remapping_info invalid_entry;
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extern spinlock_t softirq_dev_lock;
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void ptdev_softirq(int cpu);
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void ptdev_init(void);
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void ptdev_release_all_entries(struct vm *vm);
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void get_ptdev_info(char *str, int str_max);
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struct ptdev_remapping_info *ptdev_dequeue_softirq(void);
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struct ptdev_remapping_info *alloc_entry(struct vm *vm,
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enum ptdev_intr_type type);
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void release_entry(struct ptdev_remapping_info *entry);
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struct ptdev_remapping_info *ptdev_activate_entry(
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struct ptdev_remapping_info *entry,
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int phys_irq, bool lowpri);
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void ptdev_deactivate_entry(struct ptdev_remapping_info *entry);
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#endif /* PTDEV_H */
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