Re: [PATCH] virtio-pci: Fix endianness of virtio config

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

 



On 10.01.2012, at 23:52, Alexander Graf wrote:

> 
> On 10.01.2012, at 23:49, Benjamin Herrenschmidt wrote:
> 
>> On Tue, 2012-01-10 at 23:41 +0100, Alexander Graf wrote:
>>> 
>>> No. Libhw shouldn't be able to know anything about target endianness.
>>> If a device is as brokenly spec'ed as virtio and is coupled to the
>>> "main CPU endianness", it clearly belongs with the CPU, not into
>>> libhw.
>> 
>> Ok, can you guys solve this and tell me what I should do ? :-)
> 
> Your patch is fine. I also wrote up another patch that fixes the memcpy() in virtio.c so you patch actually works on x86 too. I sent it to you, so please include it in your next submission.
> 
> I would heavily veto against keeping virtio-pci in libhw though if it depends on the target endianness. PCI devices don't know about CPUs. Period.

The only thing I could imagine doable would be basically 2 different variants of virtio-pci that happen to expose the same PCI ID, but are initialized differently by a qdev property. We could then have the alias to normal virtio-pci device names in target specific code, but the actual device code in libhw.


Alex

--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux