Jean-Yves Migeon wrote:
der Mouse wrote:I don't think so. Hypervisor's reserve a serial port for debugging, and you cannot access it either from a dom0 or domU, since there is no easy way to tell that Xen reserved the port, or not.I've got xen running on hardware that, when running 4.0 native (no xen at all), says com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo This is when booted from sd0. But when I plug in two IDE disks (so the BIOS boots from one of them instead) and bring up a xen dom0, I get only com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo What happened to com0? Can I get it back (in either dom0 or a domU)? If so, how?Presently, I guess you are left with only one com port under Xen. But wait for Manuel's answer, as always, I may be wrong :)
Replying to myself: maybe a possibility here: - remove serial option in grub's menu.lst for Xen kernel - uncomment com0 in arch/i386/conf/XEN2_DOM0, and recompile a kernel. -- Jean-Yves Migeon jean-yves.migeon%espci.fr@localhost