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Subject: [Bug 212021] xhci(4) broken on big-endian systems
Date: Sun, 21 Aug 2016 17:57:32 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212021

--- Comment #3 from Hans Petter Selasky <hselasky@FreeBSD.org> ---
Got it. OK, Look at this error:

xhci: output context at 831a000
xhci: invalid input context control 00000000 00000003
13236@1471749323.871077:usb_xhci_queue_event v 0, idx 8, ER_COMMAND_COMPLET=
E,
CC_TRB_ERROR, p 000000000499fdf0, s 05000000, c 0x01008401
13236@1471749323.871080:usb_xhci_irq_intx level 1

And this piece of code which I simply Googled:

hcd-xhci.c:

    cpu_physical_memory_read(ictx, (uint8_t *) ictl_ctx, sizeof(ictl_ctx));

    if (ictl_ctx[0] !=3D 0x0 || ictl_ctx[1] !=3D 0x3) {
        fprintf(stderr, "xhci: invalid input context control %08x %08x\n",
                ictl_ctx[0], ictl_ctx[1]);
        return CC_TRB_ERROR;
    }

It looks like the ictl_ctx[1] read should have a le32_to_cpu() wrapper arou=
nd
it.

--HPS

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