Hi,
> > new_addr = pci_bar_address(d, i, r->type, r->size);
> > +if (!d->has_power) {
> > +new_addr = PCI_BAR_UNMAPPED;
> > +}
> >
> > /* This bar isn't changed */
> > if (new_addr == r->addr)
>
> I am a bit confused about why this is nec
On Thu, Nov 11, 2021 at 02:08:54PM +0100, Gerd Hoffmann wrote:
> This allows to power off pci devices. In "off" state the devices will
> not be visible. No pci config space access, no pci bar access, no dma.
>
> Default state is "on", so this patch (alone) should not change behavior.
>
> Use ca
On Thu, Nov 11, 2021 at 02:08:54PM +0100, Gerd Hoffmann wrote:
> This allows to power off pci devices. In "off" state the devices will
> not be visible. No pci config space access, no pci bar access, no dma.
>
> Default state is "on", so this patch (alone) should not change behavior.
>
> Use ca
This allows to power off pci devices. In "off" state the devices will
not be visible. No pci config space access, no pci bar access, no dma.
Default state is "on", so this patch (alone) should not change behavior.
Use case: Allows hotplug controllers implement slot power. Hotplug
controllers
