Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range()

[Andi Kleen]

On 10/11/2021 10:31 PM, Christoph Hellwig wrote:
> On Mon, Oct 11, 2021 at 03:09:09PM -0400, Michael S. Tsirkin wrote:
> > The reason we have trouble is that it's not clear what does the API mean
> > outside the realm of TDX.
> > If we really, truly want an API that says "ioremap and it's a hardened
> > driver" then I guess ioremap_hardened_driver is what you want.
> Yes.  And why would be we ioremap the BIOS anyway?  It is not I/O memory
> in any of the senses we generally use ioremap for.

I/O memory is anything outside the kernel memory map.

-Andi