Re: [PATCH] hw/pci: Use correct bus aperture for device container size

["Michael S. Tsirkin" <mst@redhat.com>]

On Tue, Dec 23, 2025 at 02:52:20PM +0100, Philippe Mathieu-Daudé wrote:
> ping?


picked it up.

> On 24/11/25 12:47, Philippe Mathieu-Daudé wrote:
> > Before commit 3716d5902d7 ("pci: introduce a bus master container")
> > device view of the bus address space was correctly sized to the
> > bus aperture, but then it always used a 64-bit aperture. Restore
> > the previous behavior, so devices on 32-bit PCI only see 32-bit
> > address space.
> > 
> > Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> > ---
> >   hw/pci/pci.c | 3 ++-
> >   1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/hw/pci/pci.c b/hw/pci/pci.c
> > index b1eba348e06..64f33b9de04 100644
> > --- a/hw/pci/pci.c
> > +++ b/hw/pci/pci.c
> > @@ -1375,7 +1375,8 @@ static PCIDevice *do_pci_register_device(PCIDevice *pci_dev,
> >       pstrcpy(pci_dev->name, sizeof(pci_dev->name), name);
> >       memory_region_init(&pci_dev->bus_master_container_region, OBJECT(pci_dev),
> > -                       "bus master container", UINT64_MAX);
> > +                       "bus master container",
> > +                       memory_region_size(bus->address_space_mem));
> >       address_space_init(&pci_dev->bus_master_as,
> >                          &pci_dev->bus_master_container_region, pci_dev->name);
> >       pci_dev->bus_master_as.max_bounce_buffer_size =