From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(),
 pci_iomap_host_shared_range()
Date: Tue, 12 Oct 2021 06:31:18 +0100
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>, Christoph Hellwig <hch@infradead.org>, Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Peter Zijlstra <peterz@infradead.org>, Andy Lutomirski <luto@kernel.org>, Bjorn Helgaas <bhelgaas@google.com>, Richard Henderson <rth@twiddle.net>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, James E J Bottomley <James.Bottomley@hansenpartnership.com>, Helge Deller <deller@gmx.de>, "David S . Miller" <davem@davemloft.net>, Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>, Paolo Bonzini <pbonzini@redhat.com>, David Hildenbrand <david@redhat.com>, Andrea Arcangeli <aarcange@redhat.>

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.