[Qemu-devel] [PATCH 23/26] usbredir: Verify we have 32 bits bulk length cap when redirecting to xhci

[Hans de Goede <hdegoede@redhat.com>]

The xhci-hcd may submit bulk transfers > 65535 bytes even when not using
bulk-in pipeling, so usbredir can only be used in combination with an xhci
hcd if the client has the 32 bits bulk length capability.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 hw/usb/redirect.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
index ed2f427..f4715f3 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -989,6 +989,8 @@ static void usbredir_do_attach(void *opaque)
         usbredirparser_peer_has_cap(dev->parser,
                                     usb_redir_cap_ep_info_max_packet_size) &&
         usbredirparser_peer_has_cap(dev->parser,
+                                    usb_redir_cap_32bits_bulk_length) &&
+        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);
-- 
1.8.0.1