Hi! Attached patch makes serial console work in simulators which don''t emulate an ns16550a but an ns16450. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> -- ---to satisfy European Law for business letters: Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach b. Muenchen Geschaeftsfuehrer: Andrew Bowd, Thomas M. McCoy, Giuliano Meroni Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen Registergericht Muenchen, HRB Nr. 43632 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On 04/06/2010 14:23, "Christoph Egger" <Christoph.Egger@amd.com> wrote:> > Hi! > > Attached patch makes serial console work in simulators which > don''t emulate an ns16550a but an ns16450.I didn''t think MCR and MSR registers had different behaviour between 16450 and 16550? Is the emulator simply dodgy? -- Keir> Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On 04/06/2010 14:40, "Keir Fraser" <keir.fraser@eu.citrix.com> wrote:> On 04/06/2010 14:23, "Christoph Egger" <Christoph.Egger@amd.com> wrote: > >> >> Hi! >> >> Attached patch makes serial console work in simulators which >> don''t emulate an ns16550a but an ns16450. > > I didn''t think MCR and MSR registers had different behaviour between 16450 > and 16550? Is the emulator simply dodgy?Yeah, I see that Linux''s 8250 code has the same test. I think the emulator is what needs fixing. -- Keir> -- Keir > >> Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel