On 17/11/20 11:08, Bin Meng wrote:
I see. Is there any chance you could write a testcase for
kvm-unit-tests? Or just explain how to write such a test, and then I
can write it myself; it's not clear to me how the guest can observe the
base and limit of a non-present segment.
I am not familiar with kvm-unit-test. The original issue cannot be
reproduced with a KVM enabled QEMU as the codes-in-flaw is in the
emulation path.
kvm-unit-tests, despite the name, is a set generic tests for CPU
behavior; it works with other accelerators that QEMU supports including
the emulation path. You can find it at
https://gitlab.com/kvm-unit-tests/kvm-unit-tests.
If you explain in enough detail how VxWorks triggers the bug, I can take
care of writing the test.
Paolo
