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usbredir: Verify we have 32 bits bulk length cap when redirecting to xhci 

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>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Hans de Goede 2012-12-14 14:35:44 +01:00 committed by Gerd Hoffmann
parent d8553dd047
commit d3aea641a4
1 changed files with 2 additions and 0 deletions
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2
hw/usb/redirect.c
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@ -979,6 +979,8 @@ static void usbredir_do_attach(void *opaque)
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_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");