qemu/0604-usb-redir-Ensure-our-peer-has-the-necessary-caps-whe.patch
Cole Robinson 9290838132 Fix boot hang if console is not connected (bz #894451)
Fix segfault with zero length virtio-scsi disk (bz #847549)
2013-02-02 15:47:37 -05:00

41 lines
1.5 KiB
Diff

From ef07a05e357649d52058bcd980924b107a85fb56 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 3 Sep 2012 12:04:49 +0200
Subject: [PATCH] usb-redir: Ensure our peer has the necessary caps when
redirecting to XHCI
In order for redirection to work properly when redirecting to an emulated
XHCI controller, the usb-redir-host must support both
usb_redir_cap_ep_info_max_packet_size and usb_redir_cap_64bits_ids,
reject any devices redirected to an XHCI controller when these are not
supported.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
hw/usb/redirect.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
index a590cb2..f1bb692 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -833,6 +833,17 @@ static void usbredir_do_attach(void *opaque)
{
USBRedirDevice *dev = opaque;
+ /* In order to work properly with XHCI controllers we need these caps */
+ if ((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER) && !(
+ usbredirparser_peer_has_cap(dev->parser,
+ usb_redir_cap_ep_info_max_packet_size) &&
+ usbredirparser_peer_has_cap(dev->parser,
+ usb_redir_cap_64bits_ids))) {
+ ERROR("usb-redir-host lacks capabilities needed for use with XHCI\n");
+ usbredir_reject_device(dev);
+ return;
+ }
+
if (usb_device_attach(&dev->dev) != 0) {
usbredir_reject_device(dev);
}