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chromium / chromiumos / platform / crosvm / refs/heads/stabilize-14477.B-main
commit2fef35537f00517b63201420f3142e99425a4693[log] [tgz]
authorChuanxiao Dong <chuanxiao.dong@intel.corp-partner.google.com>Thu Jan 20 01:20:53 2022
committerDavid Stevens <stevensd@chromium.org>Sat Jan 22 06:48:27 2022
tree72a757b95d69db58c5ef8b859404b116ca6859cb
parente88502f2161e984a89005f94cc4f49f7e4669be8 [diff]
coiommu: add unpin_gen_threshold parameter optimize the LRU unpin

The pages which are frequently used by the VM are likely not to be
unpinned. So an optimization is to skip the unpin scan for those pages
in the LRU unpin policy. The unpin_gen_threshold defines a threshold
number that, if a page cannot be unpinned in a period of
(unpin_gen_threshold* unpin_interval) seconds, then this page will be
marked as inactive. Those inactive pages will be scanned every
(unpin_gen_threshold* unpin_interval) seconds if there is no enough
active pages to unpin.

BUG=b:188481989
TEST=Boot a VM with coiommu lru unpin policy + pass through devices.

Change-Id: Ie020173097b6f4f925cafc121a802243ef65f165
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3292941
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: David Stevens <stevensd@chromium.org>
2 files changed
tree: 72a757b95d69db58c5ef8b859404b116ca6859cb
  1. .cargo/
  2. .devcontainer/
  3. .github/
  4. aarch64/
  5. acpi_tables/
  6. arch/
  7. bin/
  8. bit_field/
  9. ci/
  10. common/
  11. crosvm-fuzz/
  12. crosvm_control/
  13. crosvm_plugin/
  14. devices/
  15. disk/
  16. docs/
  17. fuse/
  18. gpu_display/
  19. hypervisor/
  20. integration_tests/
  21. kernel_cmdline/
  22. kernel_loader/
  23. kvm/
  24. kvm_sys/
  25. libcras_stub/
  26. libvda/
  27. linux_input_sys/
  28. logo/
  29. net_sys/
  30. net_util/
  31. power_monitor/
  32. protos/
  33. qcow_utils/
  34. resources/
  35. rutabaga_gfx/
  36. seccomp/
  37. src/
  38. system_api_stub/
  39. tests/
  40. third_party/
  41. tools/
  42. tpm2/
  43. tpm2-sys/
  44. usb_sys/
  45. usb_util/
  46. vfio_sys/
  47. vhost/
  48. virtio_sys/
  49. vm_control/
  50. vm_memory/
  51. x86_64/
  52. .dockerignore
  53. .gitignore
  54. .gitmodules
  55. .rustfmt.toml
  56. ARCHITECTURE.md
  57. Cargo.toml
  58. CONTRIBUTING.md
  59. LICENSE
  60. navbar.md
  61. OWNERS
  62. README.chromeos
  63. README.md
  64. run_tests
  65. rust-toolchain
  66. setup_cros_cargo.sh
  67. test_all
  68. 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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