domingo, 24 de Fevereiro de 2019 às 09:47:34 UTC, Jan Kiszka escreveu:
> On 23.02.19 18:32, João Reis wrote:
> > sábado, 23 de Fevereiro de 2019 às 10:29:41 UTC, Jan Kiszka escreveu:
> >> On 22.02.19 15:10, João Reis wrote:
> >>> sexta-feira, 22 de Fevereiro de 2019 às 13:19:56 UTC, J. Kiszka escreveu:
> >>>> Please always keep the list in CC ("reply-to-all").
> >>>
> >>> I'm sorry, i forgot to cc to this group.
> >>>
> >>>> Also "jailhouse cell linux" does a "cell create" under the hood, but
> >>>> maybe there
> >>>> is something subtly borken that only surfaces this way. I probable never
> >>>> tested
> >>>> you pattern. Will do.
> >>>
> >>> Ok, i'll be waiting for your test. Thank you for your availability.
> >>>
> >>
> >> All working fine - provided you issue the "cell create" in an ssh session,
> >> rather than on the serial console. As the Linux cell will take away the
> >> UART
> >> from the root cell, the latter approach will make the system appear as if
> >> it is
> >> locked up.
> >>
> >> Jan
> >
> > Ok, that might be the problem. I was executing "cell create" on the serial
> > console, so probably that's why it is freezing.
> >
> > Just have one question, in what does the linux cell, or .c file, differ
> > from gic-demo cell in a sense that one (linux cell) takes away the UART
> > from root cell and the other (gic-demo cell) doesn't? (i suppose this
> > because in gic-demo cell i can still write to serial console after "create
> > cell" command)
> >
>
> The gic-demo shares the UART with the root cell in output-only mode. In
> contrast, the Linux non-root cell also uses the UART as input, and that mode
> cannot be shared.
>
> Jan
But both gic-demo and linux cells share the same flags in UART memory region
(JAILHOUSE_MEM_READ, JAILHOUSE_MEM_WRITE, JAILHOUSE_MEM_IO,
JAILHOUSE_MEM_ROOTSHARED). Is there another configuration that allows linux
cell to use UART as input? Could you tell me where it is?
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