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[Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon |
Date: |
Mon, 07 Dec 2009 14:16:33 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.4pre) Gecko/20090922 Fedora/3.0-3.9.b4.fc12 Lightning/1.0pre Thunderbird/3.0b4 |
On 12/07/09 14:03, Michael S. Tsirkin wrote:
Also - why not simply use virtio? I assume you are talking about
guests with virtio support otherwise MSI support in virtio
won't matter for them.
Point. Guests with virtio-console+balloon most likely can use virtio
for storage+net too, so nothing performance-critical is left in ioapic
irq space and IRQ sharing for the leftovers (just usb I think) shouldn't
be a big issue.
Yes. Three for balloon, but that can easily changed to two.
Yes, please, make this change for 0.12.
We can also simply drop this ...
No, but changing this will need updating guests.
... or postphone until we have the "one MSI-X vector" support working.
cheers,
Gerd
- [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon, Michael S. Tsirkin, 2009/12/07
- [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon, Gerd Hoffmann, 2009/12/07
- [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon, Michael S. Tsirkin, 2009/12/07
- [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon, Gerd Hoffmann, 2009/12/07
- [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon, Michael S. Tsirkin, 2009/12/07
- [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon,
Gerd Hoffmann <=
- [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon, Michael S. Tsirkin, 2009/12/07
- [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon, Gerd Hoffmann, 2009/12/07
- [Qemu-devel] Re: [PATCH 2/2] virtio: enable msi-x for console+balloon, Michael S. Tsirkin, 2009/12/07