[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [PATCH] RFC kvm irqfd: add directly mapped MSI IRQ supp

From: Benjamin Herrenschmidt
Subject: Re: [Qemu-devel] [PATCH] RFC kvm irqfd: add directly mapped MSI IRQ support
Date: Fri, 21 Jun 2013 15:12:13 +1000

On Thu, 2013-06-20 at 22:46 -0600, Alex Williamson wrote:
> Maybe you could add a device parameter to kvm_irqchip_add_msi_route so
> that it can be implemented on POWER without this pci_bus_map_msi
> interface that seems very unique to POWER.  Thanks,

You mean unique to all non-x86 ? :-)

I believe almost everybody eventually turn MSIs into "normal"

Most often than not, the logic to do so is in the PCI Host Bridge.

The whole concept of passing the message address/data accross the
user/kernel interface is an x86 crackpotery but as is the entire
remapping/routing layer so ... :-)


reply via email to

[Prev in Thread] Current Thread [Next in Thread]