[Qemu-devel] PCI(e): Documentation "io-reserve" and related properties?

[Kashyap Chamarthy]

Hi folks,

Today I learnt about some obscure PCIe-related properties, in context of
the adding PCIe root ports to a guest, namely:

    io-reserve
    mem-reserve
    bus-reserve
    pref32-reserve
    pref64-reserve

Unfortunately, the commit[*] that added them provided no documentation
whatsover.

In my scenario, I was specifically wondering about what does
"io-reserve" mean, in what context to use it, etc.  (But documentation
about other properties is also welcome.)

Anyone more well-versed in this area care to shed some light?


[*] 6755e618d0 (hw/pci: add PCI resource reserve capability to legacy
    PCI bridge, 2018-08-21)

-- 
/kashyap