On Thu, Oct 08, 2015 at 03:09:02PM -0400, Laine Stump wrote:
On 10/07/2015 12:50 PM, Daniel P. Berrange wrote:
This looks for existance of /sys/firmware/acpi/tables/DMAR as a reasonable hint that the BIOS support an Intel IOMMU.
This file is only present if enabled in the BIOS, so the check only does something if the BIOS is enabled but the kernel has it disabled.
TBD figure out a check for AMD too, which doesn't involve grepping dmesg which might have already been purged.
I have a couple AMD machines, if you want anything tested.
I'll knock something up for AMD per Alex's recommendation and then post another patch for that.
ACK with what's here though.
Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|