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From 87317670541ed043a21964c29e0e613aab375224 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Mon, 3 Sep 2012 12:04:49 +0200
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Subject: [PATCH] usb-redir: Ensure our peer has the necessary caps when
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redirecting to XHCI
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In order for redirection to work properly when redirecting to an emulated
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XHCI controller, the usb-redir-host must support both
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usb_redir_cap_ep_info_max_packet_size and usb_redir_cap_64bits_ids,
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reject any devices redirected to an XHCI controller when these are not
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supported.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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---
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hw/usb/redirect.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
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index a590cb2..f1bb692 100644
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--- a/hw/usb/redirect.c
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+++ b/hw/usb/redirect.c
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@@ -833,6 +833,17 @@ static void usbredir_do_attach(void *opaque)
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{
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USBRedirDevice *dev = opaque;
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+ /* In order to work properly with XHCI controllers we need these caps */
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+ if ((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER) && !(
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+ usbredirparser_peer_has_cap(dev->parser,
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+ usb_redir_cap_ep_info_max_packet_size) &&
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+ usbredirparser_peer_has_cap(dev->parser,
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+ usb_redir_cap_64bits_ids))) {
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+ ERROR("usb-redir-host lacks capabilities needed for use with XHCI\n");
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+ usbredir_reject_device(dev);
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+ return;
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+ }
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+
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if (usb_device_attach(&dev->dev) != 0) {
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usbredir_reject_device(dev);
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}
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--
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1.7.12.1
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