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Richard Zhang dc8d88fd80 e2e_test: virtio_pci_device: Add test for cold restore 
Currently, cmds cannot be sent to the guest on cold restore
boot, so some
investigation is needed. However, this still provides a useful coverage
test for cold restoring.

This CL also updates VirtioPciDevice so that cold restore won't break
for vhost user devices by returning early for sleep
and wake if the device has not been activated.

BUG=b:280607404
TEST=snapshot_vhost_user_root test passes

Change-Id: I28a12dbb6f0f009b8253c5f679dd9963b3fd12b4
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4609418
Reviewed-by: Elie Kheirallah <khei@google.com>
Reviewed-by: Frederick Mayle <fmayle@google.com>
Reviewed-by: Noah Gold <nkgold@google.com>
Commit-Queue: Richard Zhang <rizhang@google.com>
2023-06-20 17:30:04 +00:00
..
benches
fixture e2e_test: virtio_pci_device: Add test for cold restore 2023-06-20 17:30:04 +00:00
guest_under_test
tests e2e_test: virtio_pci_device: Add test for cold restore 2023-06-20 17:30:04 +00:00
Cargo.toml
README.md
run

README.md

Crosvm End to End Tests

These tests run a crosvm VM on the host to verify end to end behavior. They use a prebuilt guest kernel and rootfs, which is downloaded from google cloud storage.

Running with locally built kernel/rootfs

If the test needs to run offline, or you want to make changes to the kernel or rootfs, you have to specify the environment variables CROSVM_CARGO_TEST_KERNEL_BINARY and CROSVM_CARGO_TEST_ROOTFS_IMAGE to point to the right files.

The use_local_build.sh script does this for you:

$ source guest_under_test/use_local_build.sh

Uploading prebuilts

Note: Only Googlers with access to the crosvm-testing cloud storage bin can upload prebuilts.

To upload the modified rootfs, you will have to uprev the PREBUILT_VERSION variable in:

  • ./guest_under_test/PREBUILT_VERSION

and request a permission to become a member of the crosvm-policy-uploader group. Then run the upload script to build and upload the new prebuilts. Never try to modify an existing prebuilt as the new images may break tests in older versions.