"enable" feature in swap crate was set as default to run
unit/integration tests of the crate. https://crrev.com/c/4486546
However missing `default-features = false` at non-root Cargo.toml cause
other crates (e.g. x86_64) installing userfaultfd always.
This makes the swap/enable non-default. CQ still runs unit/integration tests of the swap crate on aarch64 and x86_64.
BUG=b:281935498
TEST=cargo test -p swap --features=swap/enable
Change-Id: I57436c3cb8cbdfac04c3145cc599261b89cf4e0e
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4518090
Commit-Queue: Shin Kawamura <kawasin@google.com>
Reviewed-by: Dennis Kempin <denniskempin@google.com>
forking a process with multiple threads will lead to
undefined behavior. Unfortunately, newer versions of
libtest will spawn multiple threads even when running
a with --test-threads=1.
This change implements a custom, test harness using
libtest-mimic. It mimics the libtest CLI but enforces
a single threaded test process.
BUG=b:270167741
BUG=b:268496046
TEST=tools/run_tests --dut=host
Change-Id: Icef6a1b65bab7f5cd5021c01fbd94487fa0ca5fb
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4295157
Reviewed-by: George Burgess <gbiv@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Dennis Kempin <denniskempin@google.com>
Reviewed-by: Frederick Mayle <fmayle@google.com>
This is a refactoring to use original Error type instead of UffdError
from userfaultfd crate. This helps /dev/userfaultfd support which
returns std::io::Error on opening userfaultfd.
This contains a minor change to move register/unregister helpers to
userfaultfd.rs
BUG=b:266642532
TEST=cargo test -p swap
Change-Id: I24079999b018c0f1683fd7b4ee0f97153bd8914d
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4196761
Reviewed-by: David Stevens <stevensd@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Shin Kawamura <kawasin@google.com>
Instead of configuring which crates to --exclude in
test_config.py, we can use conditional compilation to
exclude code that is not supported on windows.
This allows more fine-grained control and also allows
us to use plain cargo for building without complicated
configuration and exclusions.
BUG=b:265829867
TEST=cargo test --lib --bins --workspace
--target=x86_64-pc-windows-gnu
--features=all-mingw64
Change-Id: I8422c3f08053bc27d9896b220876a56bd25543d6
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4165868
Reviewed-by: Vikram Auradkar <auradkar@google.com>
Commit-Queue: Dennis Kempin <denniskempin@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Handling page faults using userfaultfd for all the time after vmm-swap
is enabled originally has overhead. By disabling swapping, we can use
crosvm without the overhead when the crosvm become used heavily again.
This also refactor PageHandler and extract register logic to lib.rs.
BUG=b:215093219
TEST=cargo test -p swap
Change-Id: Id81d84ebe40067b4f19b212f6b81cbaf249c0c3c
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4005474
Reviewed-by: David Stevens <stevensd@chromium.org>
Commit-Queue: Shin Kawamura <kawasin@google.com>
