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https://github.com/qemu/qemu/blob/master/docs/usb2.txt
Aug 21, 2018 · qemu -device qemu-xhci: XHCI supports USB 1.1, USB 2.0 and USB 3.0 devices, so this is the: only controller you need. With only a single USB controller (and: therefore only a single USB bus) present in the system there is no: need to use the bus= parameter when adding USB devices. EHCI controller support-----The QEMU EHCI Adapter supports USB 2 ...
https://en.wikibooks.org/wiki/QEMU/Devices/USB/Root
QEMU/Devices/USB/Root. From Wikibooks, open books for an open world < QEMU ... EHCI controllers can only handle USB 2.0 (with a few exceptions not included by QEMU), so a companion controller is needed for USB 1.x. ... PCI UHCI . Intel and VIA controllers fall into this section. Other vendors tend to use OHCI. These controllers support USB 1 ...
https://sourceforge.net/p/aqemu/patches/6/
AQEMU; Patches; AQEMU a GUI for virtual machines using QEMU as the backend ... QEMU can emulate an USB 2.0 ehci bus. ... I'm not really sure if this is fixed. I haven't tested the USB support a whole lot. Andrej's latest changes from his git repository are in the 0.9.1 release.
https://unix.stackexchange.com/questions/295155/qemu-kvm-usb3-passthrough-to-freebsd
When running QEMU monitor, info usb returns (no surprise) the same entry for the network card, both for Ubuntu and FreeBSD. The only way of adding XHCI controller in QEMU I found is to specify nec-usb-xhci, so far this is the only difference between VirtualBox and QEMU I see. Is there a way to make this USB3 passthrough to FreeBSD possible with ...
https://wiki.qemu.org/Google_Summer_of_Code_2011
Improving USB emulation accuracy. There are still a few rough edges in QEMU's USB support beyond the EHCI topic: improve USB device emulation like mass storage devices, network adapters, etc. improved topology configuration by modeling it via qdev new device emulations, e.g. webcam (playing video files) or IO-warrior-like device ...
https://wiki.qemu.org/ChangeLog/2.2
USB. Support for hot-plugging XHCI/EHCI/UHCI controllers (in the case of EHCI/UHCI, only if there are no companion controllers). Support for USB 2.0 (high speed) mice and keyboards, complementing the existing support for high speed USB tablets. High speed devices avoid the less efficient UHCI controller, and thus use less CPU on the host. VGA
https://www.tenable.com/plugins/nessus/131585
A privileged user inside quest could use this flaw to crash the QEMU process instance resulting in DoS.(CVE-2016-2198) - The is_rndis function in the USB Net device emulator (hw/usb/dev-network.c) in QEMU before 2.5.1 does not properly validate USB configuration descriptor objects, which allows local guest OS administrators to cause a denial of ...
https://askubuntu.com/questions/618404/how-to-compile-qemu-with-usb-suport
I have recently downloaded qemu and compiled qemu 2.3.0. I can compile and install just fine, but I cant figure out how to get USB support. I have installed libusb 1.0.9 but when I run configure for quemu, it still says there is no usb support.
https://en.wikipedia.org/wiki/Qemu
QEMU versions starting with 0.12.0 (as of August 2009) support large memory which makes them incompatible with KQEMU. Newer releases of QEMU have completely removed support for KQEMU. QVM86 was a GNU GPLv2 licensed drop-in replacement for the then closed-source KQEMU. The developers of QVM86 ceased development in January, 2007.Original author(s): Fabrice Bellard
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