Hi,
On 12/11/2014 10:44, Christoffer Dall wrote:
I'm not a fan of placing fundamentally required system description on the command line. It's fine for explicit overrides but I don't think it should be the default mechanism as that causes its own set of problems (who wants to fight with their hypervisor to pass a command line to a guest kernel?).
Agreed completely, but I've been lacking strong technical arguments against passing this stuff on the cmdline. My personal preferred approach for the Xen Dom0 case is to add a property to the DT.
IHMO, the cmdline is OS specific, therefore this solution wouldn't fit to support ACPI on other OS (i.e *BSD) without requiring specific implementation/parsing of the command line.
The DT solution would be cleaner and the bindings are already standardize (and starting to be used on other OS such as FreeBSD).
Regards,