On 18.09.23 12:11, Ani Sinha wrote:
Ok hopefully my last question. I am still confused on something.
Does the above mean that the hole64 will actually start from an
address that is beyond maxram? Like basically if you added all of
ram_below_4G, ram_above_4G, hot plug_mem and pci_hole64 then can it
exceed maxram? I think it will. Does this not an issue?
If you'd have a 2 GiB VM, the device memory region and hole64 would
always be placed >= 4 GiB address, yes.
As maxram is just a size, and not a PFN, I don't think there is any
issue with that.
ms->maxram_size is usually only used in combination with ms->ram_size to
detect if memory devices will be enabled, and to size that region for
memory devices.
--
Cheers,
David / dhildenb
