From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:38573) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T1fCL-0004Dh-9N for qemu-devel@nongnu.org; Wed, 15 Aug 2012 11:07:54 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1T1fCK-00011K-9J for qemu-devel@nongnu.org; Wed, 15 Aug 2012 11:07:53 -0400 Received: from mx1.redhat.com ([209.132.183.28]:5689) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1T1fCK-00011D-1U for qemu-devel@nongnu.org; Wed, 15 Aug 2012 11:07:52 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q7FF7pBX014307 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 15 Aug 2012 11:07:51 -0400 From: Hans de Goede Date: Wed, 15 Aug 2012 17:08:54 +0200 Message-Id: <1345043334-21506-1-git-send-email-hdegoede@redhat.com> Subject: [Qemu-devel] [PATCH] ehci: Fix setting of halt bit from usbcmd register updates List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gerd Hoffmann Cc: Hans de Goede , qemu-devel@nongnu.org This fixes linux guests started without any USB devices not seeing newly plugged devices until "lsusb" is done inside the guest. Signed-off-by: Hans de Goede --- hw/usb/hcd-ehci.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index e489509..8b94b17 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -1187,22 +1187,23 @@ static void ehci_mem_writel(void *ptr, target_phys_addr_t addr, uint32_t val) break; } + /* not supporting dynamic frame list size at the moment */ + if ((val & USBCMD_FLS) && !(s->usbcmd & USBCMD_FLS)) { + fprintf(stderr, "attempt to set frame list size -- value %d\n", + val & USBCMD_FLS); + val &= ~USBCMD_FLS; + } + if (((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & val) != ((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & s->usbcmd)) { if (s->pstate == EST_INACTIVE) { SET_LAST_RUN_CLOCK(s); } + s->usbcmd = val; /* Set usbcmd for ehci_update_halt() */ ehci_update_halt(s); s->async_stepdown = 0; qemu_mod_timer(s->frame_timer, qemu_get_clock_ns(vm_clock)); } - - /* not supporting dynamic frame list size at the moment */ - if ((val & USBCMD_FLS) && !(s->usbcmd & USBCMD_FLS)) { - fprintf(stderr, "attempt to set frame list size -- value %d\n", - val & USBCMD_FLS); - val &= ~USBCMD_FLS; - } break; case USBSTS: -- 1.7.11.4