From: Carsten Otte <cotte@de.ibm.com>
To: Avi Kivity <avi@qumranet.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
Eric Van Hensbergen <ericvanhensbergen@us.ibm.com>,
kvm-devel@lists.sourceforge.net, lguest <lguest@ozlabs.org>,
linux-kernel@vger.kernel.org, virtualization@lists.osdl.org
Subject: Re: [kvm-devel] [PATCH 3/3] virtio PCI device
Date: Tue, 27 Nov 2007 10:09:50 +0100 [thread overview]
Message-ID: <474BDEDE.6060603@de.ibm.com> (raw)
In-Reply-To: <474BDD28.7050801@qumranet.com>
Avi Kivity wrote:
> No, definitely not define a hypercall ABI. The feature bit should say
> "this device understands a hypervisor-specific way of kicking. consult
> your hypervisor manual and cpuid bits for further details. should you
> not be satisfied with this method, port io is still available".
...unless you're lucky enough to be on s390 where pio is not available.
I don't see why we'd have two different ways to talk to a virtio
device. I think we should use a hypercall for interrupt injection,
without support for grumpy old soldered pci features other than
HPA-style Lguest PCI bus organization. There are no devices that we
want to be backward compatible with.
next prev parent reply other threads:[~2007-11-27 9:10 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-08 2:46 [PATCH 0/3] virtio PCI driver Anthony Liguori
2007-11-08 2:46 ` [PATCH 1/3] Export vring functions for modules to use Anthony Liguori
2007-11-08 2:46 ` [PATCH 2/3] Put the virtio under the virtualization menu Anthony Liguori
2007-11-08 2:46 ` [PATCH 3/3] virtio PCI device Anthony Liguori
2007-11-08 6:12 ` [kvm-devel] " Avi Kivity
2007-11-08 13:54 ` Anthony Liguori
2007-11-08 14:37 ` Avi Kivity
2007-11-08 15:06 ` Anthony Liguori
2007-11-08 15:13 ` Avi Kivity
2007-11-08 23:43 ` Dor Laor
2007-11-08 17:46 ` Arnd Bergmann
2007-11-08 19:04 ` Anthony Liguori
2007-11-09 11:03 ` Arnd Bergmann
2007-11-09 0:39 ` Dor Laor
2007-11-09 2:17 ` Anthony Liguori
2007-11-20 15:01 ` Avi Kivity
2007-11-20 15:43 ` Anthony Liguori
2007-11-20 16:12 ` Avi Kivity
2007-11-20 22:16 ` Anthony Liguori
2007-11-21 7:13 ` Avi Kivity
2007-11-21 18:22 ` Zachary Amsden
2007-11-22 7:32 ` Avi Kivity
2007-11-23 16:51 ` Anthony Liguori
2007-11-23 17:47 ` Avi Kivity
2007-11-26 19:18 ` Anthony Liguori
2007-11-27 9:02 ` Avi Kivity
2007-11-27 9:09 ` Carsten Otte [this message]
2007-11-27 9:27 ` Avi Kivity
2007-11-27 10:12 ` Carsten Otte
2007-11-27 10:19 ` Avi Kivity
2007-11-27 10:28 ` Carsten Otte
2007-11-27 9:25 ` Arnd Bergmann
2007-11-08 6:49 ` [kvm-devel] [PATCH 2/3] Put the virtio under the virtualization menu Avi Kivity
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