This fixes an issue on kevin where if we start on a little core, the
kernel doesn't like the generic ARMv8 target cpu type for some reason. To
fix this we must query the preferred type from the vm device first and
supply that to the vcpu init ioctl.
We need to change the signature of the configure_vcpu method to pass
in the vm object even though we aren't using it on x86.
BUG=chromium:797868
TEST=./build_test passes on all architectures
TEST=crosvm runs on kevin
Change-Id: I460cb9db62a8805bb88f838956aa4f1c69183961
Reviewed-on: https://chromium-review.googlesource.com/982996
Commit-Ready: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
This creates a trait that different architectures can implement to
support running Linux VMs.
In the implementation on X86 we remove some error and return errors
from lower-level modules as appropriate. These modules now implement
the Error trait so we can get meaningful descriptions without an extra
error from the calling function. This still keeps all the ifdefs in
linux.rs for now until we have another implementation to use for ARM.
BUG=chromium:797868
TEST=./build_test passes on all architectures
TEST=crosvm runs on caroline
Change-Id: If24bcc83e25f9127d6aea68f9272e639296aad8b
Reviewed-on: https://chromium-review.googlesource.com/952368
Commit-Ready: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
