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Blame 0327-usb-redir-Ensure-our-peer-has-the-necessary-caps-whe.patch

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From af1ecda005c043dd8186725ae7a93ea66ebfe96f 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 327/366] usb-redir: Ensure our peer has the necessary caps
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 when 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 357f307..5b0f834 100644
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--- a/hw/usb/redirect.c
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+++ b/hw/usb/redirect.c
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@@ -834,6 +834,17 @@ 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
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