[PATCH v4 00/12] kexec kernel efi runtime support
Dave Young
dyoung at redhat.com
Sun Dec 1 21:32:52 EST 2013
On 11/29/13 at 06:02pm, Borislav Petkov wrote:
> On Fri, Nov 29, 2013 at 04:28:22PM +0800, Dave Young wrote:
> > I think for anyone who are using early_memremap should know this is a
> > normal kernel memory instead of real __iomem
>
> You can never ever assume that people are using kernel interfaces
> correctly.
But the semantic of early_memreamp should be that it will just return
a normal memory pointer instead of iomem so the fix to convert the internal
implementation to return a __force __kernel make sense to me.
For iounmap I think since we have early_memremap, we have reason to add
early_memunmap() so sparse will be happy.
Thanks
Dave
More information about the kexec
mailing list