hermit/drivers/virtio/
mod.rs

1//! Virtio infrastructure.
2//!
3//! This module provides [`transport`] infrastructure as well as [`virtqueue`] infrastructure.
4
5pub mod transport;
6pub mod virtqueue;
7
8trait VirtioIdExt {
9	fn as_feature(&self) -> Option<&str>;
10}
11
12impl VirtioIdExt for virtio::Id {
13	fn as_feature(&self) -> Option<&str> {
14		let feature = match self {
15			Self::Net => "virtio-net",
16			Self::Console => "console",
17			Self::Fs => "fuse",
18			Self::Vsock => "vsock",
19			_ => return None,
20		};
21
22		Some(feature)
23	}
24}
25pub mod error {
26	use thiserror::Error;
27
28	#[cfg(feature = "console")]
29	pub use crate::drivers::console::error::VirtioConsoleError;
30	#[cfg(feature = "fuse")]
31	pub use crate::drivers::fs::virtio_fs::error::VirtioFsError;
32	#[cfg(all(
33		not(all(target_arch = "riscv64", feature = "gem-net", not(feature = "pci"))),
34		not(feature = "rtl8139"),
35		feature = "virtio-net",
36	))]
37	pub use crate::drivers::net::virtio::error::VirtioNetError;
38	#[cfg(feature = "pci")]
39	use crate::drivers::pci::error::PciError;
40	#[cfg(feature = "vsock")]
41	pub use crate::drivers::vsock::error::VirtioVsockError;
42
43	#[allow(dead_code)]
44	#[derive(Error, Debug)]
45	pub enum VirtioError {
46		#[cfg(feature = "pci")]
47		#[error(transparent)]
48		FromPci(PciError),
49
50		#[cfg(feature = "pci")]
51		#[error(
52			"Virtio driver failed, for device {0:x}, due to a missing or malformed common config!"
53		)]
54		NoComCfg(u16),
55
56		#[cfg(feature = "pci")]
57		#[error(
58			"Virtio driver failed, for device {0:x}, due to a missing or malformed ISR status config!"
59		)]
60		NoIsrCfg(u16),
61
62		#[cfg(feature = "pci")]
63		#[error(
64			"Virtio driver failed, for device {0:x}, due to a missing or malformed notification config!"
65		)]
66		NoNotifCfg(u16),
67
68		#[error("Device with id {0:#x} not supported.")]
69		DevNotSupported(u16),
70
71		#[cfg(all(
72			not(all(target_arch = "riscv64", feature = "gem-net", not(feature = "pci"))),
73			not(feature = "rtl8139"),
74			feature = "virtio-net",
75		))]
76		#[error(transparent)]
77		NetDriver(VirtioNetError),
78
79		#[cfg(feature = "fuse")]
80		#[error(transparent)]
81		FsDriver(VirtioFsError),
82
83		#[cfg(feature = "vsock")]
84		#[error(transparent)]
85		VsockDriver(VirtioVsockError),
86
87		#[cfg(feature = "console")]
88		#[error(transparent)]
89		ConsoleDriver(VirtioConsoleError),
90
91		#[cfg(not(feature = "pci"))]
92		#[error("Driver failure")]
93		Unknown,
94	}
95}
hermit/drivers/virtio/mod.rs

hermit/drivers/virtio/
mod.rs
