On Fri, Aug 10, 2018 at 03:41:09PM +0300, Ivan Mishonov wrote:
> This is how it's described in bhyve(8). Basically you need to configure one
> for each bhyve VM. Otherwise the VM won't boot. I'm not sure if there's an
> equivalent device in other Hypervisors. I've used KVM for quite some time
> and didn't need to configure anything similar
>
> lpc LPC PCI-ISA bridge with COM1 and COM2
> 16550 serial ports and a boot ROM.
> The LPC bridge emulation can only be
> configured on bus 0.
Ok, so we have the same thing in QEMU, but it is a built-in part of the
machine type which we can't move between different PCI slots, so we have
never had to represent it in the XML.
I think conceptually we'd probably map this to a new controller type eg
<controller type="isa-bridge" index="0">
<address type="pci" domain="0" bus="0" slot="NNN" function="0"/>
</controller>
So you'd just need to define the new "isa-bridge" controller type for
the parser and have the bhyve driver honour the <address>, if provided.
Regards,
Daniel
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