On Thu, Jun 20, 2024 at 07:08:38PM +0100, John Levon wrote:
On Thu, Jun 20, 2024 at 01:29:11PM -0400, Kevin O'Connor wrote:
I'm leery of moving this heuristic to 64G of ram. I can understand the logic of >4G of ram indicating support for >4G pci. However, it seems strange to me that there would be guests with 50G of ram that can't handle >4G pci, but not similar guests with 70G of ram.. It
Such a guest cannot possibly address that much, so it doesn't seem at all unreasonable to require a config change there. That is, by definition there can't be a workload in the OS that's relying on 70G of RAM.
Thanks. I missed that PAE is limited to 36bits (64GB).
Is the problem that SeaBIOS created PCI mappings >4G or is the problem that SeaBIOS created PCI mappings >64G?
-Kevin