On Mon, 11 Nov 2024, Sebastian Ott wrote:
PCI hotplug for downstream endpoints on arm fails because Linux'
PCIe hotplug driver doesn't like the QEMU provided LNKSTA:
pcieport 0000:08:01.0: pciehp: Slot(2): Card present
pcieport 0000:08:01.0: pciehp: Slot(2): Link Up
pcieport 0000:08:01.0: pciehp: Slot(2): Cannot train link: status 0x2000
There's 2 cases where LNKSTA isn't setup properly:
* the downstream device has no express capability
* max link width of the bridge is 0
Fix these by making the LNKSTA modifications independent of each other.
Signed-off-by: Sebastian Ott <seb...@redhat.com>
Friendly ping. This fixes PCI hotplug to a downstream port on ARM.
Thanks,
Sebastian
