Hi Marc, On Mon, Sep 19, 2022 at 2:36 AM Marc Zyngier <maz@xxxxxxxxxx> wrote: > > On Sat, 17 Sep 2022 02:06:00 +0100, > Reiji Watanabe <reijiw@xxxxxxxxxx> wrote: > > > > Add a test case for KVM_GUESTDBG_SINGLESTEP to the debug-exceptions test. > > The test enables single-step execution from userspace, and check if the > > exit to userspace occurs for each instruction that is stepped. > > Set the default number of the test iterations to a number of iterations > > sufficient to always reproduce the problem that the previous patch fixes > > on an Ampere Altra machine. > > A possibly more aggressive version of this test would be to force a > (short lived) timer to fire on the same CPU, forcing an exit. This > should hopefully result in a more predictable way to trigger the > issue. But that's a reasonable test as a start. Yes, that could result in a more predictable way to cause the specific case! I will consider this at a future opportunity. Thank you, Reiji _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
