Re: [PATCH 1/3] mm: vmalloc: export __vmalloc_node_range

[Christoph Hellwig]

On Thu, Jul 18, 2024 at 01:45:11PM +0100, Matthew Wilcox wrote:
> On Thu, Jul 18, 2024 at 08:40:27AM -0400, Mary Strodl wrote:
> > On Wed, Jul 17, 2024 at 08:04:01PM -0700, Christoph Hellwig wrote:
> > > NAK to a driver creating random writable and exectutable memory:
> > 
> > Is there a better way to do what I'm trying to do? Or some way to
> > expose this functionality with more guard rails so that it's a
> > little bit safer?
> 
> No, there is no way to do what you're trying to do.

IFF it is absolutely required to run BIOS provided executable code,
the best way to do that is in a separate userspace process.