Re: [PATCH v4 12/15] pci: Mark MSI data shared

[Christoph Hellwig]

On Wed, Aug 04, 2021 at 05:52:15PM -0700, Kuppuswamy Sathyanarayanan wrote:
>  
> -	return ioremap(phys_addr, nr_entries * PCI_MSIX_ENTRY_SIZE);
> +	return ioremap_shared(phys_addr, nr_entries * PCI_MSIX_ENTRY_SIZE);

Please add a comment here.  I also find the amount of ioremap_* variants
rather frustrating.  Maybe it it is time for a ioremap_flags which
replaces the too-lowlevel pgprot_t of the ioremap_prot provided by some
architectures with a more highlevel flags arguments that could also
provide an accessible to the hypervisor flag.