[Xen-devel] Ping: [PATCH 0/4] ns16550: enable support for Pericom controllers

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 23.02.16 at 12:22, <JBeulich@xxxxxxxx> wrote:
> Patches 1 and 2 are meant to go in. Patch 3 is a prerequisite to patch
> 4 and may go in as well, but patch 4 is RFC because with the Pericom
> board I have MSI doesn't appear to function. Since it also does not
> work in baremetal Linux when doing the trivial adjustments needed in
> its driver, I suspect the feature doesn't work in general, which is
> supported by the observation that the device continues to assert
> INTx despite the MSI enable bit being set (causing unclaimed IRQs
> until that IRQ gets shut off). While I got some responses back from
> Pericom support, no actual statement of whether MSI is actually
> known to work on their boards was ever made by them. I _think_
> patch 4 is correct (and hence could go in), but I have no way of
> proving this by testing.
> 
> 1: ns16550: store pointer to config parameters for PCI
> 2: ns16550: enable Pericom controller support
> 3: console: adjust IRQ initialization
> 4: ns16550: enable use of PCI MSI
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> 
> (Konrad, I'd appreciate if you could double check that I didn't
> accidentally break the Oxford controller support.)
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx 
> http://lists.xen.org/xen-devel 




_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel