Re: [Qemu-devel] [PATCH 3/4] sdhci: Support SDHCI devices on PCI

[Kevin O'Connor]

On Tue, Nov 18, 2014 at 07:27:24AM +0100, Paolo Bonzini wrote:
> On 18/11/2014 05:26, Kevin O'Connor wrote:
> > --- a/include/hw/pci/pci.h
> > +++ b/include/hw/pci/pci.h
> > @@ -53,6 +53,7 @@
> >  /* QEMU/Bochs VGA (0x1234) */
> >  #define PCI_VENDOR_ID_QEMU               0x1234
> >  #define PCI_DEVICE_ID_QEMU_VGA           0x1111
> > +#define PCI_DEVICE_ID_SDHCI              0x2222
> 
> 0x1234 is not a registered PCI id, and it's only used for VGA for
> backwards-compatibility reasons.
> 
> Please use 1b36:0005 instead, and document it in docs/specs/pci-ids.txt,
> or use a real-world PCI vendor/device pair (if you can find one that
> Linux doesn't have quirks for; that could be hard).

Hi Paolo.  Thanks for reviewing.

I know recent Intel chips (eg, baytrail) have a builtin sdhci
controller (eg, 8086:0f16).  However, that has quirks defined in the
Linux driver.  Basic functionality still does seem to work though when
I use those ids in qemu.  The same basic functionality also seems to
work when I use 1b36:0005 as well.

Is there a preference then to use the redhat ids?  Gerd, you seem to
be in charge of the redhat pci ids - are you okay if I us one (should
it be the existing 0005 or add 0006)?

Thanks,
-Kevin