Move GuestAddress and GuestMemory to a new crate for VM memory. This
will make separating sys_util and crosvm independent making it easier
to use sys_util functions outside of crosvm.
Change-Id: I12e14948ea85754dfa6267b3a3fb32b77ef6796e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2311251
Auto-Submit: Dylan Reid <dgreid@chromium.org>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Improve the virtqueue_fuzzer's performance by reducing the maximum queue
size as well as the size of the guest memory. Zeroing out 256MB of
memory on every iteration was slowing things down quite a bit and we
don't actually need that much memory to fuzz the virtqueue code.
Additionally, refactor the fuzzer to use the virtqueue structs from the
virtio spec to fill out the guest memory. This should give us more
targeted fuzzing compared to the previous implementation, while also
removing cases where the fuzzer would spin for thousands of iterations
without making any progress.
BUG=chromium:1018267
TEST=`cros_fuzz reproduce` and also run the fuzzer manually
Change-Id: Ibf71aa83c31f16b7f58b23045a0919f7f6824c77
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1886533
Tested-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Commit-Queue: Sean Abraham <seanabraham@chromium.org>
Auto-Submit: Chirantan Ekbote <chirantan@chromium.org>
