Hi, On 02/16/2018 02:25 PM, Martinez Garcia Jorge Luis (PS-EC/ESB2) wrote: > Hello, > I have one question regarding the file inmates/lib/arm-common/printk.c > (_https://github.com/siemens/jailhouse/blob/master/inmates/lib/arm-common/printk.c#L115_ > ).The Linux root celland a non-root cell (e.g. > _https://github.com/siemens/jailhouse/blob/master/inmates/demos/arm/uart-demo.c_) > have access to different UARTs. The non-root cell, as seen in printk.c They can have access to different UARTs, but do not necessarily have to. You could also share UARTs across multiple cells, but this might not always be a good idea, as jailhouse doesn't do any arbitration. > file (which in turn > includes_https://github.com/siemens/jailhouse/blob/master/inmates/lib/arm/include/mach.h_), > is supposed to make use of a differentUART memory region. When it is > mentioned that “we share the UART with the hpervisor…”, what does it mean? "sharing" means that the MMIO/PIO is mapped to both, the hypervisor and the cell, they access the same device.
Ralf > > Best, > Jorge > > > -- > You received this message because you are subscribed to the Google > Groups "Jailhouse" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected] > <mailto:[email protected]>. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
