On Thu, Jun 25, 2020 at 10:56:43AM -0400, Stefan Berger wrote: > Hello! > > I want to enable IRQs now in QEMU's TPM TIS device model and I need to work > with the following patch to Linux TIS. I am wondering whether the changes > there look reasonable to you? Windows works with the QEMU modifications > as-is, so maybe it's a bug in the TIS code (which I had not run into > before). > > > The point of the loop I need to introduce in the interrupt handler is that > while the interrupt handler is running another interrupt may occur/be posted > that then does NOT cause the interrupt handler to be invoked again but > causes a stall, unless the loop is there. That seems like a qemu bug, TPM interrupts are supposed to be level interrupts, not edge. Jason
