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Re: [PATCH] hw/pci-host: Allow extended config space access for Designwa


From: Jason Chien
Subject: Re: [PATCH] hw/pci-host: Allow extended config space access for Designware PCIe host
Date: Sat, 12 Aug 2023 13:37:28 +0800

This bug was also in 8.0.

Jason

On Fri, Aug 11, 2023 at 10:07 PM Peter Maydell <peter.maydell@linaro.org> wrote:
On Fri, 11 Aug 2023 at 10:55, Peter Maydell <peter.maydell@linaro.org> wrote:
>
> On Thu, 10 Aug 2023 at 18:51, Michael S. Tsirkin <mst@redhat.com> wrote:
> >
> > On Wed, Aug 09, 2023 at 10:22:50AM +0000, Jason Chien wrote:
> > > In pcie_bus_realize(), a root bus is realized as a PCIe bus and a non-root
> > > bus is realized as a PCIe bus if its parent bus is a PCIe bus. However,
> > > the child bus "dw-pcie" is realized before the parent bus "pcie" which is
> > > the root PCIe bus. Thus, the extended configuration space is not accessible
> > > on "dw-pcie". The issue can be resolved by adding the
> > > PCI_BUS_EXTENDED_CONFIG_SPACE flag to "pcie" before "dw-pcie" is realized.
> > >
> > > Signed-off-by: Jason Chien <jason.chien@sifive.com>
> >
> >
> > Acked-by: Michael S. Tsirkin <mst@redhat.com>
> >
> > I'm not planning another pull before release, hopefully
> > another maintainer can pick it up? Peter?
>
> At the moment I don't have anything intended for 8.1 either,
> so whoever of us does it it would be a 1-patch pullreq...

Also, at this stage in the release cycle it's always worth
asking: is this a regression, or was this bug also in 8.0?

thanks
-- PMM

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