On 6/7/19 1:03 PM, Dan Williams wrote:
> Separate from these patches, should we have a runtime file that
> out the same info? dmesg isn't always available, and hotplug could
> change this too, I'd imagine.
Perhaps, but I thought /proc/iomem was that runtime file. Given that
x86/Linux only seems to care about the the EFI to E820 translation of
the map and the E820 map is directly reflected in /proc/iomem, do we
need another file?
I'm just trying to think of ways that we can debug systems where someone
"loses" a bunch of memory, especially if they're moving from an old
kernel to a new one with these patches. From their perspective, they
just lost a bunch of expensive memory.
Do we owe a pr_info(), perhaps? Or even a /proc/meminfo entry for how
much memory these devices own?