vmm_host: remove default implementation of protocol()

Having a default protocol implementation is dangerous, as implementors
can just ignore this method and return an erroneous type.

BUG=None
TEST=cargo build

Change-Id: Iee7dbcf563be1e5b15903b0fd7bdfb7ff5823545
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3565619
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Noah Gold <nkgold@google.com>
Commit-Queue: Alexandre Courbot <acourbot@chromium.org>
2 files changed
tree: 4b90bb00c191c9b78006c1dd95bf50e80f10bc66
  1. .cargo/
  2. .devcontainer/
  3. .github/
  4. aarch64/
  5. acpi_tables/
  6. arch/
  7. base/
  8. bin/
  9. bit_field/
  10. ci/
  11. common/
  12. cros_async/
  13. crosvm-fuzz/
  14. crosvm_control/
  15. crosvm_plugin/
  16. devices/
  17. disk/
  18. docs/
  19. fuse/
  20. gpu_display/
  21. hypervisor/
  22. infra/
  23. integration_tests/
  24. io_uring/
  25. kernel_cmdline/
  26. kernel_loader/
  27. kvm/
  28. kvm_sys/
  29. libcras_stub/
  30. libvda/
  31. linux_input_sys/
  32. logo/
  33. net_sys/
  34. net_util/
  35. power_monitor/
  36. protos/
  37. qcow_utils/
  38. resources/
  39. rutabaga_gfx/
  40. seccomp/
  41. serde_keyvalue/
  42. src/
  43. system_api_stub/
  44. tests/
  45. third_party/
  46. tools/
  47. tpm2/
  48. tpm2-sys/
  49. usb_sys/
  50. usb_util/
  51. vfio_sys/
  52. vhost/
  53. virtio_sys/
  54. vm_control/
  55. vm_memory/
  56. win_util/
  57. x86_64/
  58. .dockerignore
  59. .gitignore
  60. .gitmodules
  61. .rustfmt.toml
  62. ARCHITECTURE.md
  63. Cargo.toml
  64. CONTRIBUTING.md
  65. LICENSE
  66. navbar.md
  67. OWNERS
  68. README.chromeos.md
  69. README.md
  70. run_tests
  71. rust-toolchain
  72. setup_cros_cargo.sh
  73. test_all
  74. unblocked_terms.txt
README.md

crosvm - The Chrome OS 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 Chrome OS 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 Chrome OS devices.

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