| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * API definition for Platform IRQ Forwarding to KVM guests |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * Copyright 2020 Google LLC |
| * |
| */ |
| #ifndef _UAPI_LINUX_PLATIRQFORWARD_H |
| #define _UAPI_LINUX_PLATIRQFORWARD_H |
| |
| #include <linux/ioctl.h> |
| #include <linux/types.h> |
| |
| #define PLAT_IRQ_FORWARD_API_VERSION 0 |
| |
| #define PLAT_IRQ_FORWARD_TYPE (';') |
| #define PLAT_IRQ_FORWARD_BASE 100 |
| |
| /** |
| * |
| * Set masking and unmasking of interrupts. Caller provides |
| * struct plat_irq_forward_set with all fields set. |
| * |
| */ |
| struct plat_irq_forward_set { |
| __u32 argsz; |
| __u32 action_flags; |
| #define PLAT_IRQ_FORWARD_SET_LEVEL_TRIGGER_EVENTFD (1 << 0) |
| #define PLAT_IRQ_FORWARD_SET_LEVEL_UNMASK_EVENTFD (1 << 1) |
| #define PLAT_IRQ_FORWARD_SET_EDGE_TRIGGER (1 << 2) |
| __u32 irq_number_host; |
| __u32 count; |
| __u8 eventfd[]; |
| }; |
| |
| /* ---- IOCTLs for Platform IRQ Forwarding fd (/dev/plat-irq-forward) ---- */ |
| #define PLAT_IRQ_FORWARD_SET _IO(PLAT_IRQ_FORWARD_TYPE, PLAT_IRQ_FORWARD_BASE) |
| |
| #endif /* _UAPI_LINUX_PLATIRQFORWARD_H */ |
