Re: [Xen-devel] Re: Possible regression in "passthough: add no_wb option for pci conf write"

[Simon Horman <horms@xxxxxxxxxxxx>]

On Mon, Dec 07, 2009 at 01:57:28PM +0800, Qing He wrote:
> On Mon, 2009-12-07 at 13:46 +0800, Simon Horman wrote:
> > > So you are obseversing that ioemu window
> > > disappear at boot time?
> > 
> > I'm not sure what you mean by "ioemu window".
> > 
> Never mind, I meant vnc or sdl console of ioemu.
> 
> Can you try if the following patch fixes the problem?

Thanks, that seems to resolve the problem that I observed.

> ---
> diff --git a/hw/pass-through.c b/hw/pass-through.c
> index b125d72..f28f6c7 100644
> --- a/hw/pass-through.c
> +++ b/hw/pass-through.c
> @@ -1556,7 +1556,7 @@ static void pt_pci_write_config(PCIDevice *d, uint32_t 
> address, uint32_t val,
>      val >>= ((address & 3) << 3);
>  
>  out:
> -    if (!reg->no_wb) {
> +    if (!(reg && reg->no_wb)) {  /* unknown regs are passed through */
>          ret = pci_write_block(pci_dev, address, (uint8_t *)&val, len);
>  
>          if (!ret)
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel