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DM USB: xHCI: add port sharing feature

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add support for xHCI port sharing feature, which enable the ability
to assign different native ports to different multi-UOSes. For
example:
1-2,1-2 assigned to UOS-1.
1-1,2-1 assigned to UOS-2.

Change-Id: I899070f7a8a6eb23179e41e7b1f1da24c52482b2
Signed-off-by: Wu, Xiaoguang <xiaoguang.wu@intel.com>
Reviewed-by: Shuo Liu <shuo.a.liu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Wu, Xiaoguang 2018-05-10 22:02:06 +08:00 committed by lijinxia
parent 8aef2cb34b
commit 048b2c76a3
2 changed files with 23 additions and 0 deletions
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21
devicemodel/hw/pci/xhci.c
View File

@ -256,6 +256,7 @@ struct pci_xhci_vdev {
int usb2_port_start;
int usb3_port_start;
uint8_t *native_assign_ports[USB_NATIVE_NUM_BUS];
};
/* portregs and devices arrays are set up to start from idx=1 */
@ -369,6 +370,26 @@ pci_xhci_native_usb_dev_conn_cb(void *hci_data, void *dev_data)
UPRINTF(LDBG, "%X:%X %d-%d connecting.\r\n",
native_vid, native_pid, native_bus, native_port);
/* FIXME: will support usb3 in future */
if (xdev->native_assign_ports[native_bus] &&
usb_native_is_ss_port(native_bus)) {
UPRINTF(LDBG, "%X:%X %d-%d not support usb3 device, exit.\r\n",
native_vid, native_pid, native_bus,
native_port);
goto errout;
}
if (!xdev->native_assign_ports[native_bus] ||
!xdev->native_assign_ports[native_bus][native_port]) {
UPRINTF(LDBG, "%X:%X %d-%d doesn't belong to this vm, bye.\r\n",
native_vid, native_pid, native_bus,
native_port);
goto errout;
}
UPRINTF(LDBG, "%X:%X %d-%d belong to this vm.\r\n", native_vid,
native_pid, native_bus, native_port);
if (ue->ue_usbver == 2)
port_start = xdev->usb2_port_start;
else

2
devicemodel/include/usb_core.h
View File

@ -199,6 +199,8 @@ enum USB_ERRCODE {
#define NATIVE_USBSYS_DEVDIR "/sys/bus/usb/devices"
#define NATIVE_USB2_SPEED "480"
#define NATIVE_USB3_SPEED "5000"
#define USB_NATIVE_NUM_PORT 255
#define USB_NATIVE_NUM_BUS 255
extern int usb_log_level;
inline int usb_get_log_level(void) { return usb_log_level; }