devices: bus: Add debug logs for devices and bus.

Change bus logs from info to debug.
Add debug logs for each device on sleep, snapshot, wake, restore.
Add info log at top level snapshot and restore.

BUG=N/A
TEST=boot crosvm, snapshot. Shut down, boot with restore.
TEST=boot crosvm with --log-level=debug, snapshot. Shut down, boot with restore.

Change-Id: I67263a5745dac6647dbe689aa3b97c8f43555593
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4954726
Auto-Submit: Elie Kheirallah <khei@google.com>
Reviewed-by: Frederick Mayle <fmayle@google.com>
Commit-Queue: Elie Kheirallah <khei@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
3 files changed
tree: d6ab9b49af8a89f0eb1a5227e388f8b3c096ac16
  1. .cargo/
  2. .config/
  3. .devcontainer/
  4. .github/
  5. .vscode/
  6. aarch64/
  7. acpi_tables/
  8. arch/
  9. argh_helpers/
  10. audio_streams_conformance_test/
  11. audio_util/
  12. base/
  13. bit_field/
  14. broker_ipc/
  15. common/
  16. cros_async/
  17. cros_fdt/
  18. cros_tracing/
  19. cros_tracing_types/
  20. crosvm_cli/
  21. crosvm_control/
  22. crosvm_plugin/
  23. devices/
  24. disk/
  25. docs/
  26. e2e_tests/
  27. fuse/
  28. fuzz/
  29. gpu_display/
  30. hypervisor/
  31. infra/
  32. io_uring/
  33. jail/
  34. kernel_cmdline/
  35. kernel_loader/
  36. kvm/
  37. kvm_sys/
  38. libcras_stub/
  39. linux_input_sys/
  40. logo/
  41. media/
  42. metrics/
  43. net_sys/
  44. net_util/
  45. perfetto/
  46. power_monitor/
  47. prebuilts/
  48. proto_build_tools/
  49. protos/
  50. resources/
  51. riscv64/
  52. rutabaga_gfx/
  53. sandbox/
  54. serde_keyvalue/
  55. src/
  56. swap/
  57. system_api/
  58. tests/
  59. third_party/
  60. tools/
  61. tube_transporter/
  62. usb_sys/
  63. usb_util/
  64. vendor/
  65. vfio_sys/
  66. vhost/
  67. virtio_sys/
  68. vm_control/
  69. vm_memory/
  70. win_audio/
  71. win_util/
  72. x86_64/
  73. .dockerignore
  74. .envrc
  75. .gitignore
  76. .gitmodules
  77. .rustfmt.toml
  78. ARCHITECTURE.md
  79. Cargo.lock
  80. Cargo.toml
  81. CONTRIBUTING.md
  82. DIR_METADATA
  83. LICENSE
  84. mypy.ini
  85. OWNERS
  86. OWNERS_COUNCIL
  87. PRESUBMIT.cfg
  88. pyproject.toml
  89. README.chromeos.md
  90. README.md
  91. 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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