From: Jamin Lin <jamin_lin@aspeedtech.com>
To: "kraxel@redhat.com" <kraxel@redhat.com>,
"marcandre.lureau@redhat.com" <marcandre.lureau@redhat.com>,
"junjie.cao@intel.com" <junjie.cao@intel.com>,
"junjie.cao@linux.dev" <junjie.cao@linux.dev>,
"clg@kaod.org" <clg@kaod.org>,
"Pierrick Bouvier" <pierrick.bouvier@oss.qualcomm.com>,
"Peter Maydell" <peter.maydell@linaro.org>,
"Kane Chen" <kane_chen@aspeedtech.com>,
"Philippe Mathieu-Daudé" <philmd@oss.qualcomm.com>,
"Tyrone Ting" <kfting@nuvoton.com>,
"Hao Wu" <wuhaotsh@google.com>, "Zhao Liu" <zhao1.liu@intel.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Helge Deller" <deller@gmx.de>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"Anthony PERARD" <anthony@xenproject.org>,
"Edgar E. Iglesias" <edgar.iglesias@gmail.com>,
"open list:All patches CC here" <qemu-devel@nongnu.org>,
"open list:ASPEED BMCs" <qemu-arm@nongnu.org>,
"open list:X86 Xen CPUs" <xen-devel@lists.xenproject.org>
Cc: Jamin Lin <jamin_lin@aspeedtech.com>, Troy Lee <troy_lee@aspeedtech.com>
Subject: [PATCH v8 07/18] hw/usb/xen-usb: Do not insert an automatic hub
Date: Mon, 2 Nov 2026 09:22:13 +0000 [thread overview]
Message-ID: <20261102092201.1729245-8-jamin_lin@aspeedtech.com> (raw)
In-Reply-To: <20261102092201.1729245-1-jamin_lin@aspeedtech.com>
xen-usb gives every device a port number. usb_claim_port() then uses
that port, and never reaches the automatic hub.
Set auto_hub to false. Every bus creator then sets the flag itself,
and usb_bus_new() can stop setting a default.
Suggested-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
---
hw/usb/xen-usb.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/usb/xen-usb.c b/hw/usb/xen-usb.c
index caf9efbb77..5d1dbe6b1b 100644
--- a/hw/usb/xen-usb.c
+++ b/hw/usb/xen-usb.c
@@ -1023,6 +1023,7 @@ static void usbback_alloc(struct XenLegacyDevice *xendev)
usb_bus_new(&usbif->bus, sizeof(usbif->bus), &xen_usb_bus_ops,
DEVICE(xendev));
+ usbif->bus.auto_hub = false;
for (i = 0; i < USBBACK_MAXPORTS; i++) {
p = &(usbif->ports[i].port);
usb_register_port(&usbif->bus, p, usbif, i, &xen_usb_port_ops,
--
2.43.0
next prev parent reply other threads:[~2026-11-02 9:25 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-02 9:22 [PATCH v8 00/18] hw/usb: Add a usbredir server transport Jamin Lin
2026-11-02 9:22 ` [PATCH v8 01/18] hw/usb/bus: Add an auto-hub flag to the USB bus Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-02 9:22 ` [PATCH v8 02/18] hw/usb/hcd-xhci: Add an auto-hub property and leave it off Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-03 14:23 ` Junjie Cao
2026-11-02 9:22 ` [PATCH v8 03/18] hw/usb/hcd-ehci: " Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-02 9:22 ` [PATCH v8 04/18] hw/usb/hcd-uhci: " Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-02 9:22 ` [PATCH v8 05/18] hw/usb/hcd-ohci: " Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-03 1:29 ` Jamin Lin
2026-11-02 9:22 ` [PATCH v8 06/18] hw/usb/hcd-dwc2: " Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-03 14:23 ` Junjie Cao
2026-11-02 9:22 ` Jamin Lin [this message]
2026-11-02 14:07 ` [PATCH v8 07/18] hw/usb/xen-usb: Do not insert an automatic hub marcandre.lureau
2026-11-02 9:22 ` [PATCH v8 08/18] hw/usb/bus: Turn off the automatic hub by default Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-02 9:22 ` [PATCH v8 09/18] hw/arm/npcm7xx: Keep the automatic hub Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-03 1:06 ` Jamin Lin
2026-11-03 14:23 ` Junjie Cao
2026-11-02 9:22 ` [PATCH v8 10/18] docs/system/devices/usb: Note the automatic hub change Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-03 14:23 ` Junjie Cao
2026-11-02 9:22 ` [PATCH v8 11/18] hw/usb/redirect-server: Add a usbredir server device Jamin Lin
2026-11-03 14:23 ` Junjie Cao
2026-11-02 9:22 ` [PATCH v8 12/18] hw/usb/redirect-server: Connect usbredirparser to a chardev Jamin Lin
2026-11-03 14:23 ` Junjie Cao
2026-11-02 9:22 ` [PATCH v8 13/18] hw/usb/redirect-server: Announce the exported device Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-03 7:14 ` Jamin Lin
2026-11-02 9:22 ` [PATCH v8 14/18] hw/usb/redirect-server: Implement control transfers Jamin Lin
2026-11-03 14:23 ` Junjie Cao
2026-11-02 9:22 ` [PATCH v8 15/18] hw/usb/redirect-server: Implement bulk and interrupt transfers Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-03 14:23 ` Junjie Cao
2026-11-02 9:22 ` [PATCH v8 16/18] hw/usb/redirect-server: Stream interrupt IN endpoints Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-02 9:22 ` [PATCH v8 17/18] hw/usb/redirect-server: Implement isochronous OUT transfers Jamin Lin
2026-11-02 14:07 ` marcandre.lureau
2026-11-03 14:23 ` Junjie Cao
2026-11-02 9:22 ` [PATCH v8 18/18] hw/arm/aspeed: Enable the usbredir server transport Jamin Lin
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