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dependabot[bot] 528cc61f98 build(deps): bump the non-rust-vmm group across 2 directories with 42 updates 
Bumps the non-rust-vmm group with 27 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [clap](https://github.com/clap-rs/clap) | `4.5.42` | `4.5.46` |
| [thiserror](https://github.com/dtolnay/thiserror) | `2.0.12` | `2.0.16` |
| [epoll](https://github.com/nathansizemore/epoll) | `4.3.3` | `4.4.0` |
| [libc](https://github.com/rust-lang/libc) | `0.2.174` | `0.2.175` |
| [bitflags](https://github.com/bitflags/bitflags) | `2.9.1` | `2.9.3` |
| [tempfile](https://github.com/Stebalien/tempfile) | `3.20.0` | `3.21.0` |
| [alsa](https://github.com/diwic/alsa-rs) | `0.9.1` | `0.10.0` |
| [toml](https://github.com/toml-rs/toml) | `0.9.4` | `0.9.5` |
| [anstream](https://github.com/rust-cli/anstyle) | `0.6.19` | `0.6.20` |
| [anstyle-query](https://github.com/rust-cli/anstyle) | `1.1.3` | `1.1.4` |
| [anstyle-wincon](https://github.com/rust-cli/anstyle) | `3.0.9` | `3.0.10` |
| [anyhow](https://github.com/dtolnay/anyhow) | `1.0.98` | `1.0.99` |
| [bytemuck](https://github.com/Lokathor/bytemuck) | `1.23.1` | `1.23.2` |
| [cc](https://github.com/rust-lang/cc-rs) | `1.2.30` | `1.2.34` |
| [cfg-if](https://github.com/rust-lang/cfg-if) | `1.0.1` | `1.0.3` |
| [glob](https://github.com/rust-lang/glob) | `0.3.2` | `0.3.3` |
| [hashbrown](https://github.com/rust-lang/hashbrown) | `0.15.4` | `0.15.5` |
| [indexmap](https://github.com/indexmap-rs/indexmap) | `2.10.0` | `2.11.0` |
| [proc-macro2](https://github.com/dtolnay/proc-macro2) | `1.0.95` | `1.0.101` |
| [regex](https://github.com/rust-lang/regex) | `1.11.1` | `1.11.2` |
| [regex-automata](https://github.com/rust-lang/regex) | `0.4.9` | `0.4.10` |
| [regex-syntax](https://github.com/rust-lang/regex) | `0.8.5` | `0.8.6` |
| [rustversion](https://github.com/dtolnay/rustversion) | `1.0.21` | `1.0.22` |
| [serde_json](https://github.com/serde-rs/json) | `1.0.142` | `1.0.143` |
| [signal-hook-registry](https://github.com/vorner/signal-hook) | `1.4.5` | `1.4.6` |
| [uuid](https://github.com/uuid-rs/uuid) | `1.17.0` | `1.18.0` |
| [winnow](https://github.com/winnow-rs/winnow) | `0.7.12` | `0.7.13` |

Bumps the non-rust-vmm group with 23 updates in the /staging directory:

| Package | From | To |
| --- | --- | --- |
| [clap](https://github.com/clap-rs/clap) | `4.5.42` | `4.5.46` |
| [thiserror](https://github.com/dtolnay/thiserror) | `2.0.12` | `2.0.16` |
| [epoll](https://github.com/nathansizemore/epoll) | `4.3.3` | `4.4.0` |
| [libc](https://github.com/rust-lang/libc) | `0.2.174` | `0.2.175` |
| [bitflags](https://github.com/bitflags/bitflags) | `2.9.1` | `2.9.3` |
| [tempfile](https://github.com/Stebalien/tempfile) | `3.20.0` | `3.21.0` |
| [anstream](https://github.com/rust-cli/anstyle) | `0.6.19` | `0.6.20` |
| [anstyle-query](https://github.com/rust-cli/anstyle) | `1.1.3` | `1.1.4` |
| [anstyle-wincon](https://github.com/rust-cli/anstyle) | `3.0.9` | `3.0.10` |
| [anyhow](https://github.com/dtolnay/anyhow) | `1.0.98` | `1.0.99` |
| [cfg-if](https://github.com/rust-lang/cfg-if) | `1.0.1` | `1.0.3` |
| [glob](https://github.com/rust-lang/glob) | `0.3.2` | `0.3.3` |
| [hashbrown](https://github.com/rust-lang/hashbrown) | `0.15.4` | `0.15.5` |
| [indexmap](https://github.com/indexmap-rs/indexmap) | `2.10.0` | `2.11.0` |
| [proc-macro2](https://github.com/dtolnay/proc-macro2) | `1.0.95` | `1.0.101` |
| [regex](https://github.com/rust-lang/regex) | `1.11.1` | `1.11.2` |
| [regex-automata](https://github.com/rust-lang/regex) | `0.4.9` | `0.4.10` |
| [regex-syntax](https://github.com/rust-lang/regex) | `0.8.5` | `0.8.6` |
| [rustversion](https://github.com/dtolnay/rustversion) | `1.0.21` | `1.0.22` |
| [syn](https://github.com/dtolnay/syn) | `2.0.104` | `2.0.106` |
| [uuid](https://github.com/uuid-rs/uuid) | `1.17.0` | `1.18.0` |
| [wasi](https://github.com/bytecodealliance/wasi-rs) | `0.14.2+wasi-0.2.4` | `0.14.3+wasi-0.2.4` |
| [winnow](https://github.com/winnow-rs/winnow) | `0.7.12` | `0.7.13` |



Updates `clap` from 4.5.42 to 4.5.46
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/clap_complete-v4.5.42...clap_complete-v4.5.46)

Updates `thiserror` from 2.0.12 to 2.0.16
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](https://github.com/dtolnay/thiserror/compare/2.0.12...2.0.16)

Updates `epoll` from 4.3.3 to 4.4.0
- [Release notes](https://github.com/nathansizemore/epoll/releases)
- [Commits](https://github.com/nathansizemore/epoll/compare/4.3.3...4.4.0)

Updates `libc` from 0.2.174 to 0.2.175
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Changelog](https://github.com/rust-lang/libc/blob/0.2.175/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.174...0.2.175)

Updates `bitflags` from 2.9.1 to 2.9.3
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.9.1...2.9.3)

Updates `tempfile` from 3.20.0 to 3.21.0
- [Changelog](https://github.com/Stebalien/tempfile/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Stebalien/tempfile/compare/v3.20.0...v3.21.0)

Updates `alsa` from 0.9.1 to 0.10.0
- [Commits](https://github.com/diwic/alsa-rs/compare/v0.9.1...v0.10.0)

Updates `toml` from 0.9.4 to 0.9.5
- [Commits](https://github.com/toml-rs/toml/compare/toml-v0.9.4...toml-v0.9.5)

Updates `anstream` from 0.6.19 to 0.6.20
- [Commits](https://github.com/rust-cli/anstyle/compare/anstream-v0.6.19...anstream-v0.6.20)

Updates `anstyle-query` from 1.1.3 to 1.1.4
- [Commits](https://github.com/rust-cli/anstyle/compare/anstyle-query-v1.1.3...anstyle-query-v1.1.4)

Updates `anstyle-wincon` from 3.0.9 to 3.0.10
- [Commits](https://github.com/rust-cli/anstyle/compare/anstyle-wincon-v3.0.9...anstyle-wincon-v3.0.10)

Updates `anyhow` from 1.0.98 to 1.0.99
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.98...1.0.99)

Updates `bytemuck` from 1.23.1 to 1.23.2
- [Changelog](https://github.com/Lokathor/bytemuck/blob/main/changelog.md)
- [Commits](https://github.com/Lokathor/bytemuck/compare/v1.23.1...v1.23.2)

Updates `cc` from 1.2.30 to 1.2.34
- [Release notes](https://github.com/rust-lang/cc-rs/releases)
- [Changelog](https://github.com/rust-lang/cc-rs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/cc-rs/compare/cc-v1.2.30...cc-v1.2.34)

Updates `cfg-if` from 1.0.1 to 1.0.3
- [Release notes](https://github.com/rust-lang/cfg-if/releases)
- [Changelog](https://github.com/rust-lang/cfg-if/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/cfg-if/compare/v1.0.1...v1.0.3)

Updates `clap_builder` from 4.5.42 to 4.5.46
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v4.5.42...v4.5.46)

Updates `clap_derive` from 4.5.41 to 4.5.45
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v4.5.41...v4.5.45)

Updates `glob` from 0.3.2 to 0.3.3
- [Release notes](https://github.com/rust-lang/glob/releases)
- [Changelog](https://github.com/rust-lang/glob/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/glob/compare/v0.3.2...v0.3.3)

Updates `hashbrown` from 0.15.4 to 0.15.5
- [Release notes](https://github.com/rust-lang/hashbrown/releases)
- [Changelog](https://github.com/rust-lang/hashbrown/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/hashbrown/compare/v0.15.4...v0.15.5)

Updates `indexmap` from 2.10.0 to 2.11.0
- [Changelog](https://github.com/indexmap-rs/indexmap/blob/main/RELEASES.md)
- [Commits](https://github.com/indexmap-rs/indexmap/compare/2.10.0...2.11.0)

Updates `proc-macro2` from 1.0.95 to 1.0.101
- [Release notes](https://github.com/dtolnay/proc-macro2/releases)
- [Commits](https://github.com/dtolnay/proc-macro2/compare/1.0.95...1.0.101)

Updates `regex` from 1.11.1 to 1.11.2
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/regex/compare/1.11.1...1.11.2)

Updates `regex-automata` from 0.4.9 to 0.4.10
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/regex/compare/regex-automata-0.4.9...regex-automata-0.4.10)

Updates `regex-syntax` from 0.8.5 to 0.8.6
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/regex/compare/regex-syntax-0.8.5...regex-syntax-0.8.6)

Updates `rustversion` from 1.0.21 to 1.0.22
- [Release notes](https://github.com/dtolnay/rustversion/releases)
- [Commits](https://github.com/dtolnay/rustversion/compare/1.0.21...1.0.22)

Updates `serde_json` from 1.0.142 to 1.0.143
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.142...v1.0.143)

Updates `signal-hook-registry` from 1.4.5 to 1.4.6
- [Changelog](https://github.com/vorner/signal-hook/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vorner/signal-hook/compare/registry-v1.4.5...registry-v1.4.6)

Updates `toml_parser` from 1.0.1 to 1.0.2
- [Commits](https://github.com/toml-rs/toml/compare/toml_parser-v1.0.1...toml_parser-v1.0.2)

Updates `uuid` from 1.17.0 to 1.18.0
- [Release notes](https://github.com/uuid-rs/uuid/releases)
- [Commits](https://github.com/uuid-rs/uuid/compare/v1.17.0...v1.18.0)

Updates `winnow` from 0.7.12 to 0.7.13
- [Changelog](https://github.com/winnow-rs/winnow/blob/main/CHANGELOG.md)
- [Commits](https://github.com/winnow-rs/winnow/compare/v0.7.12...v0.7.13)

Updates `clap` from 4.5.42 to 4.5.46
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/clap_complete-v4.5.42...clap_complete-v4.5.46)

Updates `thiserror` from 2.0.12 to 2.0.16
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](https://github.com/dtolnay/thiserror/compare/2.0.12...2.0.16)

Updates `epoll` from 4.3.3 to 4.4.0
- [Release notes](https://github.com/nathansizemore/epoll/releases)
- [Commits](https://github.com/nathansizemore/epoll/compare/4.3.3...4.4.0)

Updates `libc` from 0.2.174 to 0.2.175
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Changelog](https://github.com/rust-lang/libc/blob/0.2.175/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.174...0.2.175)

Updates `bitflags` from 2.9.1 to 2.9.3
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.9.1...2.9.3)

Updates `tempfile` from 3.20.0 to 3.21.0
- [Changelog](https://github.com/Stebalien/tempfile/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Stebalien/tempfile/compare/v3.20.0...v3.21.0)

Updates `anstream` from 0.6.19 to 0.6.20
- [Commits](https://github.com/rust-cli/anstyle/compare/anstream-v0.6.19...anstream-v0.6.20)

Updates `anstyle-query` from 1.1.3 to 1.1.4
- [Commits](https://github.com/rust-cli/anstyle/compare/anstyle-query-v1.1.3...anstyle-query-v1.1.4)

Updates `anstyle-wincon` from 3.0.9 to 3.0.10
- [Commits](https://github.com/rust-cli/anstyle/compare/anstyle-wincon-v3.0.9...anstyle-wincon-v3.0.10)

Updates `anyhow` from 1.0.98 to 1.0.99
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.98...1.0.99)

Updates `cfg-if` from 1.0.1 to 1.0.3
- [Release notes](https://github.com/rust-lang/cfg-if/releases)
- [Changelog](https://github.com/rust-lang/cfg-if/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/cfg-if/compare/v1.0.1...v1.0.3)

Updates `clap_builder` from 4.5.42 to 4.5.46
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v4.5.42...v4.5.46)

Updates `clap_derive` from 4.5.41 to 4.5.45
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v4.5.41...v4.5.45)

Updates `glob` from 0.3.2 to 0.3.3
- [Release notes](https://github.com/rust-lang/glob/releases)
- [Changelog](https://github.com/rust-lang/glob/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/glob/compare/v0.3.2...v0.3.3)

Updates `hashbrown` from 0.15.4 to 0.15.5
- [Release notes](https://github.com/rust-lang/hashbrown/releases)
- [Changelog](https://github.com/rust-lang/hashbrown/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/hashbrown/compare/v0.15.4...v0.15.5)

Updates `indexmap` from 2.10.0 to 2.11.0
- [Changelog](https://github.com/indexmap-rs/indexmap/blob/main/RELEASES.md)
- [Commits](https://github.com/indexmap-rs/indexmap/compare/2.10.0...2.11.0)

Updates `proc-macro2` from 1.0.95 to 1.0.101
- [Release notes](https://github.com/dtolnay/proc-macro2/releases)
- [Commits](https://github.com/dtolnay/proc-macro2/compare/1.0.95...1.0.101)

Updates `regex` from 1.11.1 to 1.11.2
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/regex/compare/1.11.1...1.11.2)

Updates `regex-automata` from 0.4.9 to 0.4.10
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/regex/compare/regex-automata-0.4.9...regex-automata-0.4.10)

Updates `regex-syntax` from 0.8.5 to 0.8.6
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/regex/compare/regex-syntax-0.8.5...regex-syntax-0.8.6)

Updates `rustversion` from 1.0.21 to 1.0.22
- [Release notes](https://github.com/dtolnay/rustversion/releases)
- [Commits](https://github.com/dtolnay/rustversion/compare/1.0.21...1.0.22)

Updates `syn` from 2.0.104 to 2.0.106
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](https://github.com/dtolnay/syn/compare/2.0.104...2.0.106)

Updates `uuid` from 1.17.0 to 1.18.0
- [Release notes](https://github.com/uuid-rs/uuid/releases)
- [Commits](https://github.com/uuid-rs/uuid/compare/v1.17.0...v1.18.0)

Updates `wasi` from 0.14.2+wasi-0.2.4 to 0.14.3+wasi-0.2.4
- [Commits](https://github.com/bytecodealliance/wasi-rs/compare/0.14.2...0.14.3)

Updates `windows-sys` from 0.59.0 to 0.60.2
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits)

Updates `windows-targets` from 0.52.6 to 0.53.3
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits)

Updates `windows_aarch64_gnullvm` from 0.52.6 to 0.53.0
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits/0.53.0)

Updates `windows_aarch64_msvc` from 0.52.6 to 0.53.0
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits/0.53.0)

Updates `windows_i686_gnu` from 0.52.6 to 0.53.0
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits/0.53.0)

Updates `windows_i686_gnullvm` from 0.52.6 to 0.53.0
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits/0.53.0)

Updates `windows_i686_msvc` from 0.52.6 to 0.53.0
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits/0.53.0)

Updates `windows_x86_64_gnu` from 0.52.6 to 0.53.0
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits/0.53.0)

Updates `windows_x86_64_gnullvm` from 0.52.6 to 0.53.0
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits/0.53.0)

Updates `windows_x86_64_msvc` from 0.52.6 to 0.53.0
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits/0.53.0)

Updates `winnow` from 0.7.12 to 0.7.13
- [Changelog](https://github.com/winnow-rs/winnow/blob/main/CHANGELOG.md)
- [Commits](https://github.com/winnow-rs/winnow/compare/v0.7.12...v0.7.13)

---
updated-dependencies:
- dependency-name: clap
  dependency-version: 4.5.46
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: thiserror
  dependency-version: 2.0.16
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: epoll
  dependency-version: 4.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: libc
  dependency-version: 0.2.175
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: bitflags
  dependency-version: 2.9.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: tempfile
  dependency-version: 3.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
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...

Signed-off-by: dependabot[bot] <support@github.com>
2025-09-01 12:27:56 +02:00
..
src rng: enable workspace-wide lints 2025-08-04 12:30:43 +02:00
Cargo.toml build(deps): bump the non-rust-vmm group across 2 directories with 42 updates 2025-09-01 12:27:56 +02:00
CHANGELOG.md chore: standardize changelogs 2024-07-24 19:37:19 +05:30
LICENSE-APACHE Move all crates to workspace root 2023-10-16 12:03:57 +05:30
LICENSE-BSD-3-Clause Move all crates to workspace root 2023-10-16 12:03:57 +05:30
README.md rng: fix minor typos 2025-07-07 11:28:02 +03:00

README.md

vhost-device-rng - RNG emulation backend daemon

Description

This program is a vhost-user backend that emulates a VirtIO random number generator (RNG). It uses the host's random number generator pool, /dev/urandom by default but configurable at will, to satisfy requests from guests.

The daemon is designed to respect limitation on possible random generator hardware using the --max-bytes and --period options. As such 5 kilobyte per second would translate to "--max-bytes 5000 --period 1000". If an application requests more bytes than the allowed limit the thread will block until the start of a new period. The daemon will automatically split the available bandwidth equally between the guest when several threads are requested.

Though developed and tested with QEMU, the implementation is based on the vhost-user protocol and as such should be interoperable with other virtual machine managers. Please see below for working examples.

Synopsis

vhost-device-rng [OPTIONS]

Options

.. program:: vhost-device-rng

.. option:: -h, --help

Print help.

.. option:: -s, --socket-path=PATH

Location of vhost-user Unix domain sockets, this path will be suffixed with 0,1,2..socket_count-1.

.. option:: -f, --filename Random number generator source file, defaults to /dev/urandom.

.. option:: -c, --socket-count=INT

Number of guests (sockets) to attach to, default set to 1.

.. option:: -p, --period

Rate, in milliseconds, at which the RNG hardware can generate random data. Used in conjunction with the --max-bytes option.

.. option:: -m, --max-bytes

In conjunction with the --period parameter, provides the maximum number of byte per milliseconds a RNG device can generate.

Examples

The daemon should be started first:

::

host# vhost-device-rng --socket-path=/some/path/rng.sock -c 1 -m 512 -p 1000

Note that from the above command the socket path "/some/path/rng.sock0" will be created. This in turn needs to be communicated as a chardev socket to QEMU in order for the backend RNG device to communicate with the vhost RNG daemon:

::

host# qemu-system -M virt
-object memory-backend-file,id=mem,size=4G,mem-path=/dev/shm,share=on
-chardev socket,path=/some/path/rng.sock0,id=rng0
-device vhost-user-rng-pci,chardev=rng0
-numa node,memdev=mem
...

License

This project is licensed under either of