* [Qemu-devel] EHCI (usb 2.0) support
@ 2008-09-06 5:54 Max Krasnyansky
2008-09-07 6:31 ` Arnon Gilboa
0 siblings, 1 reply; 2+ messages in thread
From: Max Krasnyansky @ 2008-09-06 5:54 UTC (permalink / raw)
To: qemu-devel, kvm
With my latest USB patches, that I just sent out, UHCI support is probably as
good as it gets. I tested all kinds of devices with Linux and XP guests and
things are solid.
Host USB is now fully async and I do not see any delays/jerkiness anymore.
However, overall performance can certainly be improved by supporting EHCI (ie
usb-2.0 stuff). For example native performance of an external USB hard drive
is ~28MB/sec (measured with hdparm). The same drive attached to the Linux
guest gives me about 500KB/sec. Huge difference.
So I'm going to start working on EHCI (starting tomorrow). If somebody has any
EHCI code I can use let me know.
Max
^ permalink raw reply [flat|nested] 2+ messages in thread
* RE: [Qemu-devel] EHCI (usb 2.0) support
2008-09-06 5:54 [Qemu-devel] EHCI (usb 2.0) support Max Krasnyansky
@ 2008-09-07 6:31 ` Arnon Gilboa
0 siblings, 0 replies; 2+ messages in thread
From: Arnon Gilboa @ 2008-09-07 6:31 UTC (permalink / raw)
To: qemu-devel, kvm
This one might be a starting point for EHCI
http://lists.gnu.org/archive/html/qemu-devel/2008-01/msg00144.html
^ permalink raw reply [flat|nested] 2+ messages in thread
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2008-09-06 5:54 [Qemu-devel] EHCI (usb 2.0) support Max Krasnyansky
2008-09-07 6:31 ` Arnon Gilboa
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