Re: [Qemu-devel] [PATCH v4 3/8] intel_iommu: pass whole remapped addresses to apic

[Peter Xu <peterx@redhat.com>]

On Sat, Oct 08, 2016 at 02:14:09PM +0800, Peter Xu wrote:
> On Fri, Oct 07, 2016 at 06:24:15PM +0200, Radim Krčmář wrote:
> 
> [...]
> 
> > KVM accepts the address in host endianess and QEMU/VTD code also uses
> > host endianess for internal representation of memory addresses, so this
> > hunk should be fine.
> > 
> > It is confusing, because the VTD is definitely broken with respect to
> > endianess -- it is even trying to swap the order of bits in a byte in
> > the definition of VTD_MSIMessage.
> > I don't believe that dma_memory_write() accepted LE address on BE hosts,
> > so the existing code for filling the address is wrong:
> > 
> >       msg.__addr_head = cpu_to_le32(0xfee);
> 
> Yeah. This is my fault. Sorry for the troubles.
> 
> I have a patch (as well...) to fix this in my local tree, but not
> posted (as mst suggested). Maybe it's time to post some of them now (I
> tried to make patches more into a bunch so that they won't be lost in
> mailing list in case maintainer missed it).

I'll send them after your series to avoid unecessary conflicts.

-- peterx