On 11/02/2019 13:23, Ingo Molnar wrote: > > * Juergen Gross <jgr...@suse.com> wrote: > >>> If PCI devices had physical mmio memory areas above this range, we'd >>> still expect them to work - the option was really only meant to limit >>> RAM. >> >> No, in this case it seems to be real RAM added via PCI. The RAM is >> initially present in the E820 map, but the "mem=" will remove it from >> there again. During ACPI scan it is found (again) and will be added via >> hotplug mechanism, so "mem=" has no effect for that memory. > > OK. With that background: > > Acked-by: Ingo Molnar <mi...@kernel.org> > > I suppose you want this to go upstream via the Xen tree, which is the > main testcase for the bug to begin with?
Yes, I'd prefer that. Juergen
