On Mon, 22 Jun, at 06:11:31AM, Matt Fleming wrote: > > Right, but see my previous comment about x86 discarding a bunch of > attributes for memory regions because the kernel "knows better". > > And in most places, yes, the kernel really does know better. But this > APEI case is special because irrespective of what the kernel says we > want to be compatible with the firmware's memory map. > > And we don't have an API for that. Maybe what we want is a new PAGE_* protection that is compatible with any firmware mappings? That'd be nice because we wouldn't have to introduce a whole new API for this GHES case and ioremap_* could do whatever it wanted under the hood. Thougts? -- Matt Fleming, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
