Re: Removal of bus->msi assignment breaks MSI with stacked domains

From: Yijing Wang
Date: Fri Nov 21 2014 - 06:57:49 EST

å 2014/11/21 18:11, Marc Zyngier åé:
On 21/11/14 01:22, Yijing Wang wrote:
On 2014/11/21 0:31, Marc Zyngier wrote:
Bjorn, Yijing,

I've just realized that patch c167caf8d174 (PCI/MSI: Remove useless
bus->msi assignment) completely breaks MSI on arm64 when using the new
MSI stacked domain:
Sorry, this is my first part to refactor MSI related code, now
how to get pci msi_controller depends arch functions(pcibios_msi_controller() or
arch_setup_msi_irq()), we are working on generic pci_host_bridge, after that,
we could eventually eliminate MSI arch functions and find pci dev 's msi controller
by pci_host_bridge->get_msi_controller().

Marc, could you tell me what pci host driver in your test platform ?
I'm using pci-host-generic (with a couple of patches to help it fit the
new "generic pci" infrastructure).

This lives at:

Thanks, I would have a look at it.



To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at