On Fri, Aug 30, 2019 at 12:33:09AM +0200, Ralf Ramsauer wrote: > *ping* :) > > On 8/12/19 1:21 PM, Ralf Ramsauer wrote: > > There may be setups, where legacy interrupts are not available. This is > > the caese, e.g., when Linux runs as guest (aka. non-root cell) of the > > partitioning hypervisor Jailhouse. There, only MSI(-X) interrupts are > > available for guests. > > > > But the 8250_pci driver currently only supports legacy ints. So let's > > enable MSI(-X) interrupts. > > > > Nevertheless, this needs to handled with care: while many 8250 devices > > actually claim to support MSI(-X) interrupts it should not be enabled be > > default. I had at least one device in my hands with broken MSI > > implementation. > > > > So better introduce a whitelist with devices that are known to support > > MSI(-X) interrupts. I tested all devices mentioned in the patch. > > > > Signed-off-by: Ralf Ramsauer <ralf.ramsauer@xxxxxxxxxxxxxxxxx> Ok, will queue this up, let's see what breaks :)
