Re: [PATCH 2/3] x86_64: Define 128-bit memory-mapped I/O operations
From: "H. Peter Anvin" <hpa@zytor.com>
Date: 2012-08-22 17:12:55
On 08/22/2012 10:09 AM, Ben Hutchings wrote:
Well, sure, I'm assuming that the driver is responsible for checking that the device and its bus interface support an MMIO of the requested width. But the architecture code must be responsible for reporting whether the host supports it, right?
No, the architecture code *can't*. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.