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android / platform / external / crosvm / 205297ef9
commit205297ef9578d511a88fe7f3254d53b8d307b28c[log] [tgz]
authorTakaya Saeki <takayas@chromium.org>Thu Feb 23 02:04:35 2023 +0900
committercrosvm LUCI <crosvm-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Mar 02 08:52:56 2023 +0000
treef676c9f02e2718812a36c061701a1d1d27c53b58
parente4f63747614e26114e264b53df320d6071beff50 [diff]
disk: add try_clone method to DiskFile trait

Introduce `try_clone` method to `DiskFile` trait. This allows callers to
create DiskFile instances which share the same underlying file
descriptors, which enables you to manipulate them in multiple threads in
parallel. virtio-blk requires this change to run multiple worker threads
in parallel.

Note `try_clone` is introduced as a method of `DiskFile`, not as a
standalone `TryClone`, since such `TryClone` trait is not an object-safe
and thus cannot be defined actually.

BUG=b:267716786
TEST=build passes

Change-Id: I8aae4ee08992de2649b7157b8dfe7328751208b5
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4281742
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
Commit-Queue: Takaya Saeki <takayas@chromium.org>
4 files changed
tree: f676c9f02e2718812a36c061701a1d1d27c53b58
  1. .cargo/
  2. .config/
  3. .devcontainer/
  4. .github/
  5. .vscode/
  6. aarch64/
  7. acpi_tables/
  8. anti_tamper/
  9. arch/
  10. argh_helpers/
  11. base/
  12. bit_field/
  13. broker_ipc/
  14. common/
  15. crash_report/
  16. cros_async/
  17. cros_fdt/
  18. cros_tracing/
  19. crosvm-fuzz/
  20. crosvm_cli/
  21. crosvm_control/
  22. crosvm_plugin/
  23. devices/
  24. disk/
  25. docs/
  26. e2e_tests/
  27. fuse/
  28. gpu_display/
  29. hypervisor/
  30. infra/
  31. io_uring/
  32. jail/
  33. kernel_cmdline/
  34. kernel_loader/
  35. kvm/
  36. kvm_sys/
  37. libcras_stub/
  38. linux_input_sys/
  39. logo/
  40. media/
  41. metrics/
  42. net_sys/
  43. net_util/
  44. power_monitor/
  45. prebuilts/
  46. proto_build_tools/
  47. protos/
  48. qcow_utils/
  49. resources/
  50. rutabaga_gfx/
  51. sandbox/
  52. serde_keyvalue/
  53. src/
  54. swap/
  55. system_api/
  56. tests/
  57. third_party/
  58. tools/
  59. tpm2/
  60. tpm2-sys/
  61. tube_transporter/
  62. usb_sys/
  63. usb_util/
  64. vfio_sys/
  65. vhost/
  66. virtio_sys/
  67. vm_control/
  68. vm_memory/
  69. win_audio/
  70. win_util/
  71. x86_64/
  72. .dockerignore
  73. .gitignore
  74. .gitmodules
  75. .rustfmt.toml
  76. ARCHITECTURE.md
  77. Cargo.lock
  78. Cargo.toml
  79. CONTRIBUTING.md
  80. DIR_METADATA
  81. LICENSE
  82. mypy.ini
  83. OWNERS
  84. OWNERS_COUNCIL
  85. PRESUBMIT.cfg
  86. pyproject.toml
  87. README.chromeos.md
  88. README.md
  89. rust-toolchain
README.md

crosvm - The ChromeOS Virtual Machine Monitor

crosvm is a virtual machine monitor (VMM) based on Linux’s KVM hypervisor, with a focus on simplicity, security, and speed. crosvm is intended to run Linux guests, originally as a security boundary for running native applications on the ChromeOS platform. Compared to QEMU, crosvm doesn’t emulate architectures or real hardware, instead concentrating on paravirtualized devices, such as the virtio standard.

crosvm is currently used to run Linux/Android guests on ChromeOS devices.

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