Commit Graph

322 Commits

Author SHA1 Message Date
Jie Deng ed1c576d08 dm: pass mac seed not to use vm name
Physical NIC mac address is used for generate UOS mac address.
This patch uses a new parameters to pass this information
instead of vm name.

Tracked-On: #1987

Signed-off-by: Jie Deng <jie.deng@intel.com>
Acked-by: Yan, Like <like.yan@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-12 13:22:18 +08:00
Jian Jun Chen 2ef06450dc dm: virtio-input: ignore all MSC events from FE
EV_MSC is configured as INPUT_PASS_TO_ALL in input driver. There is
a loop in the use case of virtio-input. They should not be forwarded
back to BE since they have already been sent to native driver before
sending to FE.

Tracked-On: #2006
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-12 09:31:57 +08:00
Yang Liang da0cf3af71 DM: xHCI: unbind slot id and ndevices relationship.
After mutiple usb devices send enable slot commnad and get slot id each
other, address device setup flow is not sorted by slot id. According to
current design, it will casue assert failure. This patch takes off this
restriction.

Tracked-On: #2017
Signed-off-by: Yang Liang <liang3.yang@intel.com>
Reviewed-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-12 09:11:29 +08:00
Yin Fengwei 7fce2462a0 dm: apply new mevent API to avoid race issue in mei
Pass teardown callback when add mevent in mei mediator code.
Which could avoid run_callback calling after the related data
structure is freed.

Tracked-On: #1877
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-07 20:21:33 +08:00
Yin Fengwei 64d9c59aa1 dm: enhence the mevent API
There is one race issue between mevent callback (which is called
in mevent_dispatch thread) and mevent_delete (which could be called
in dev thread). And the callback is called after mevent_delete.

libevent have the exactly same issue. The issue is decripted here:
https://github.com/libevent/libevent/blob/master/whatsnew-2.1.txt

The fixing is:
We introduce a teardown callback to mevent and make sure there is
no race issue between callback and teardown call.

This patch updates the mevent API and the caller as well.

Tracked-On: #1877
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-07 20:21:33 +08:00
Xiaoguang Wu 9d4b5d7e1b DM USB: add some preparing time for xHCI emulation before resuming.
If the USB kernel drives and devices of SOS are not available and
functional ready after UOS is resumed from frozen state, the comming
USB command from UOS will cause a disaster because the DM has no
resourse to to emulation.

This patch add a dynamic time span (could change according to number
of native USB devices attached) to give USB drivers and devices of
SOS an opportunity to be ready.

Tracked-On: #1893
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-04 19:59:00 +08:00
Xiaoguang Wu b159d66fb3 DM USB: refine the polling thread for libusb events
The thread function usb_dev_sys_thread is the source of libusb events,
which is also the basis of USB/xHCI emulation. During S3 process,
function libusb_handle_events_timeout may fail and return -1, which
could result of exit of the thread (BTW, this failure is resulted from
USB native reseting behavior during S3). Under this situation, the emulation
of USB/xHCI could never continue.

This patch fix this issue by continuing to call libusb_handle_events_timeout
even it reture -1. The return value will be finally ok after S3 process is
completed.

This patch will continue poll after failure and hence fix this issue.

Tracked-On: #1893
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-04 19:59:00 +08:00
Xiaoguang Wu 966c587260 DM USB: xHCI: fix potential NULL pointer issue.
During S3 process, the dev in the function pci_xhci_device_doorbell
may be set to NULL when disconnection is detected by DM. This patch
is used to remove this risk.

Tracked-On: #1893
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-04 19:59:00 +08:00
Xiaoguang Wu 5b39fd0ed3 DM USB: xHCI: fix error logic of allocating xHCI slot
The 'slot_allocated[]' field of pci_xhci_vdev is used as flag of
slot allocation. In current design, this variable is not set to
false in disconnection callback 'pci_xhci_native_usb_dev_disconn_cb'.
This patch is used to fix it.

Tracked-On: #1894
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-04 19:59:00 +08:00
Xiaoguang Wu 32c4ce9b9a DM USB: xHCI: refine the xHCI S3 process
In the old implementation, function vm_get_suspend_mode is used
as the interface to check whether the UOS is in the S3, That is
not saft way.

This patch use Port Link State (PLS) to substitute the old logic.
According to xHCI spec 5.4.8, the PLS should be U3 during the
UOS is in the S3 state.

Tracked-On: #1893
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-04 19:59:00 +08:00
Xiaoguang Wu 9e471d7258 DM USB: xHCI: refine the PLC bit emulation logic during S3
According to xHCI 5.4.8, the Port Link State Change (PLC) bit
should not be set to 1 during suspend process. This patch is used
to fix it.

Tracked-On: #1893
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-04 19:59:00 +08:00
Xiaoguang Wu 29e81501c5 DM USB: xHCI: refine error handling logic for ctrl transfer
Under current implementation, when USB control transfer failed
with Endpoint Stall error, there is no response reporting to UOS.
This logic will result of timeout in UOS kernel and hence a longer
enumeration process.

This patch reports the Stall Error to UOS by xHCI Completion Event,
which will fix this issue.

Tracked-On: #1895
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-04 19:59:00 +08:00
Jie Deng b261e74dd5 dm: virtio poll mode support for RT
Device trap has great impact on latency of real time (RT) tasks.
This patch provide a virtio poll mode to avoid trap.

According to the virtio spec, backend devices can declare the
notification is not needed so that frontend will never trap.
This means the backends make commitment to the frontends they have a
poll mechanism which don’t need any frontends notification.

This patch uses a periodic timer to give backends pseudo notifications
so that drive them processing data in their virtqueues. People should
choose a appropriate notification peroid interval to use this poll
mode. Too big interval may cause virtqueue processing latency while
too small interval may cause high SOS CPU usage. The suggested interval
is between 100us to 1ms.

The poll mode is not enabled by default and traditional trap
notification mode will be used. To use poll mode for RT with interval
1ms. You can add following acrn-dm parameter.

	--virtio_poll 1000000

Tracked-On: #1956
Signed-off-by: Jie Deng <jie.deng@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-04 18:27:53 +08:00
Libin Yang 7f08ad8375 use 4 vqs
Signed-off-by: Libin Yang <libin.yang@intel.com>
Tracked-On: #1915
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-03 10:35:38 +08:00
Zhu Yingjiang 333629682a change the vq count and vendor id
Signed-off-by: Zhu Yingjiang <yingjiang.zhu@linux.intel.com>
Tracked-On: #1915
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-12-03 10:35:38 +08:00
Junjie Mao 97eb72a4a0 doc: always use 'None' for functions not returning a value
It is preferred to state the absence of a return value explicitly in the
doxygen-stile comments. Currently there are different styles of doing this,
including:

  @return None
  @return NULL
  @return void
  @return N/A

This patch unifies the above with `@return None`.

Tracked-On: #1595
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-11-30 14:55:17 +08:00
Zheng, Kankan cbe1b74eee HDCP virtio back-end driver
Initial HDCP back-end driver.

Signed-off-by: Romli, Khairul Anuar <khairul.anuar.romli@intel.com>
2018-11-30 14:45:24 +08:00
Yu Shiqiang fa012e6987 CoreU virtio back-end driver
v4 -> v5
    Replace strcpy with strncpy
    Refine resource free if error happens
    Remove meaningless *in_progress* label for pthread wait/signal
    Rename the coreu thread routine name (virtio_coreu_thread)

v3 -> v4
    Move setsocketopt to connect_to_daemon
    Cleanup coreu file descriptor after close
    Reconnect CoreU daemon if the socket descriptor is invalid

v2 -> v3
    Move the daemon connection to vdev_init
    Diagram the CoreU virtualization architecture
    Create a seperate thread for sending and receving the CoreU message
    Change the socket name

v1 -> v2
    No change

v1
    Initial CoreU back-end driver

Signed-off-by: Yu Shiqiang <shiqiang.yu@intel.com>
2018-11-30 14:45:24 +08:00
Qi Yadong 839680f09b DM: build TPM2 ACPI table when TPM device enabled
Add TPM2 ACPI table build function.

If virtual tpm device is initialized successfully, then create
corresponding TPM2 ACPI table.

Tracked-On: #1924
Signed-off-by: Qi Yadong <yadong.qi@intel.com>
Reviewed-by: Zhu Bing <bing.zhu@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
2018-11-29 09:19:16 +08:00
Qi Yadong aae70db6b9 DM: Add support for virtual TPM enabling
Support TPM enable option when launch UOS.

New option: "--vtpm sock_path=$PATH_OF_SWTPM_SOCKET".
If valid option parsed, then init virtual tpm device.

Tracked-On: #1924
Signed-off-by: Qi Yadong <yadong.qi@intel.com>
Reviewed-by: Zhu Bing <bing.zhu@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
2018-11-29 09:19:16 +08:00
Qi Yadong 7df90a2527 DM: Support TPM2 CRB device virtualization
Full virtualized TPM CRB device.

The TPM CRB module will handle TPM2 MMIO access. It will forward
the command/data to TPM emulator for command processing if there
is a valid TPM command.

Tracked-On: #1924
Signed-off-by: Qi Yadong <yadong.qi@intel.com>
Reviewed-by: Zhu Bing <bing.zhu@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
2018-11-29 09:19:16 +08:00
Qi Yadong 4b83e37c7a DM: tpm emulator to communicate with swtpm
This patch will create control channel and command channel
so as to communicate with swtpm. Based on the 2 channels,
a set of APIs will be implemented and exposed.

Tracked-On: #1924
Signed-off-by: Deng Wei <wei.a.deng@intel.com>
Signed-off-by: Qi Yadong <yadong.qi@intel.com>
Signed-off-by: yingbinx <yingbinx.zeng@intel.com>
Reviewed-by: Zhu Bing <bing.zhu@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
2018-11-29 09:19:16 +08:00
Yuan Liu d043171de5 IOC mediator: Add VehicalSteeringWheelAngle signal to the whitelist
The signal is used to get camera right and left values.

Tracked-On: #1886
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-11-23 14:59:07 +08:00
Tomas Winkler 580579a392 dm: mei: Use compare and swap primitive for refcnt.
Simple atomic add/dec do no guarantee reference count full
synchronization without a lock. Compare and swap operations
are required for correct implementation.

Tracked-On: #1875
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
2018-11-23 14:13:14 +08:00
Alexander Usyskin 378afc5093 dm: mei: fix clients scan in sysfs
Fix the prefix comparison, we need to compare on prefix length, not
on devpath len, otherwise we always fail.

Tracked-On: #1848
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Acked-by: Yu Wang <yu1.wang@intel.com>
2018-11-21 15:17:05 +08:00
Alexander Usyskin 7bd2976f9c dm: mei: add zero termination to devpath
Reset directory name to receive clean prints.

Tracked-On: #1847
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Acked-by: Yu Wang <yu1.wang@intel.com>
2018-11-21 15:17:05 +08:00
Tomas Winkler 87fbb7003d dm: mei: fix double fw_reset on uos reboot
Edge triggered mevent on sysfs file is triggered
immediately after mevent_add(), hence this has to be ignored.
The issue that is resolved that the 'first' flag was
global and wasn't reset on each mevent_add().

Tracked-On: #1846
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Acked-by: Yu Wang <yu1.wang@intel.com>
2018-11-21 15:17:05 +08:00
Alexander Usyskin 844553ef23 dm: mei: check for state before link reset callback
Prevent intercepting reset callback if reset state
transition is already in progress.

Tracked-On: #1846
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Acked-by: Yu Wang <yu1.wang@intel.com>
2018-11-21 15:17:05 +08:00
yuhong.tao@intel.com c4161c8784 dm: uart: fix UOS console output to stdin
At devicemodel/hw/uart_core.c, struct ttyfd has only one file
descriptor for uart backend device, that is OK if DM uart open
a tty characteor device under /dev/ for reading, writing and
terminal operating.

When use stdio as backend tty device, there are 2 fds, stdin/stdout.
DM should read from 'stdin' and output to 'stdout'. But ttyfd just
has one fd, and is only for 'stdin', so dm has to output to stdin,
too, not to stdout.

That cause a problem: if use stdio for uart backend, you can't
redirect UOS console to any other files. Because stdout is not used.

We hope to store information from VM console to system journal,
when UOS is launched by Acrnd automatically. The systemd need to
redirect stdout of dm to system journal files, but it can't be done.

So we can split the 'fd' of struct ttyfd to 'fd_in' & 'fd_out'.
they are same when use tty device; And they are different when use
stdio, 'fd_in' is for stdin and 'fd_out' is for stdout.

Tracked-On: #1759
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Like Yan <like.yan@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
2018-11-08 15:14:15 +08:00
Zhi Jin 36aaaa1cfd DM NPK: unmap the MMIO in pci_npk_deinit
Otherwise, after UOS crashes, the PTE for the MMIO may be added
again.

Tracked-On: #1745
Signed-off-by: Zhi Jin <zhi.jin@intel.com>
2018-11-08 09:06:17 +08:00
Yuan Liu 65a2613ab6 IOC mediator: fix wakeup reason issue when UOS resuming
IOC mediator should keep sending acnrd boot reason until received
UOS heartbeat init message, then turn to send SOS wakeup reason
through read native cbc lifecycle cdev.

Tracked-On: #1727
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-11-06 16:18:35 +08:00
Shuo Liu d261b4bce2 doc: update virtio related functions doc comments
Update some virtio, VBS-K, vhost APIs documents.

Tracked-On: #1595
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
2018-11-04 20:32:50 -08:00
Jian Jun Chen 94dadc1d14 dm: virtio-input: ignore MSC_TIMESTAMP from guest
(EV_MSC, MSC_TIMESTAMP) is added to each frame just before the
SYN event since kernel 4.15. EV_MSC is configured as
INPUT_PASS_TO_ALL. In the use case of virtio-input, there is
a loop as follows:
- A mt frame with (EV_MSC, MSC_TIMESTAMP) is passed to FE.
- FE will call virtinput_status to pass (EV_MSC, MSC_TIMESTAMP)
  back to BE.
- BE writes this event to evdev. Because (EV_MSC, MSC_TIMESTAMP)
  is configured as INPUT_PASS_TO_ALL, it will be written into
  the event buffer of evdev then be read out by BE without
  SYN followed.
- Each mt frame will introduce one (EV_MSC, MSC_TIMESTAMP).
  Later the frame becomes larger and larger...

This patch fixed above issue by ignoring MSC_TIMESTAMP from guest.
Besides that timestamp is added for every status event from guest
before writing to evdev.

Tracked-On: #1670
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-11-02 13:42:43 +08:00
Aviad Nissel 9ba75c55a7 dm: mei: fix firmware reset race.
The FW reset is currently detected from two points upon
a read failure from native read and from the reset
handler.
The fix removes the detection from the mevent rx callback,
leaving a single detection point.
To prevent reset hiccup, hw_ready is not set if a full rescan is
performed, it will be set only when virtio FW will request the FW reset.

Tracked-On: #1632
Signed-off-by: Aviad Nissel <aviad.nissel@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
2018-10-31 09:43:45 +08:00
Alexander Usyskin 5f41d4a8d3 dm: mei: check return value of vmei_host_client_to_vmei()
vmei_host_client_to_vmei() may return NULL we need to check
for the return value.

Tracked-On: #1630
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
2018-10-31 09:43:45 +08:00
Tomas Winkler b4fbef4659 dm: mei: destroy mutex attribute on error path
Simplify the flow by adding mutex_type variable
and call pthread_mutexattr_destroy() on the error path.

Tracked-On: #1630
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
2018-10-31 09:43:45 +08:00
Alexander Usyskin 8abc931791 dm: mei: set addresses in the hbm disconnect reply
MEI HBM the disconnect replay doesn't have the address set,
breaking the protocol, fix the issue.

Tracked-On: #1570
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Wang, Yu1 <yu1.wang@intel.com>
2018-10-31 09:43:45 +08:00
Xiaoguang Wu a0ace7254d DM USB: xHCI: fix process logic of TRB which has zero data length
Accoring to xHCI spec, there are some TRBs with zero data length
which used to pass command to xHCI. In the DM, those TRBs should
not be sent to native device through libusb. The logic in the
current implentation fails to process some corner cases, this
patch is used to fix it.

Tracked-On: #1639
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-31 09:08:53 +08:00
Yonghua Huang b686b562f4 DM: wrap ASSERT/DEASSERT IRQ line with Set/Clear IRQ line
- remove ASSERT & DEASSET IRQ line IOCTLs
 - remove PULSE IRQ line IOCTLs, use set/clear
   IRQ line instead.
 - Use IC_SET_IRQLINE to set or clear IRQ line

Tracked-On: #861
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-10-29 09:26:23 +08:00
Jian Jun Chen e12f88b8c7 dm: virtio-console: remove unused virtio_console_cfgwrite
Virtio-console device specific configuration is readonly, callback
for the cfgwrite is not required. This patch removed the unused
virtio_console_cfgwrite.

Tracked-On: #1364
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-27 22:28:04 +08:00
Conghui Chen 3010718d4a dm: cmdline: remove unused parameters
Remove unused parameters for acrn-dm

Tracked-On: #1616
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
2018-10-26 13:37:47 +08:00
Xiaoguang Wu 4261ca223e DM USB: xHCI: refine logic of Disable Slot Command
Remove the changing operation for 'xdev->native_ports[].state' in
pci_xhci_cmd_disable_slot. The operation should not be done in this
funciton.

Tracked-On: #1589
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-26 13:36:50 +08:00
Xiaoguang Wu e1e0d3047e DM USB: xHCI: refine the USB disconnect logic in DM
On certain SOC, during the system suspend and resume process, connecting
and disconnecting events may happen. In previous implementation, DM didn't
clear PED bit in the xHCI PORTSC register, this will induce many invalid
polling operations in UOS and fail to enumerate one or more USB devices.

Tracked-On: #1589
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-26 13:36:50 +08:00
Xiaoguang Wu f799e8fa1c DM USB: xHCI: fix process logic of LINK type TRB
When the LINK type TRB are received, it should not be counted as
valid date block to give libusb. This patch is used to fix it.

Tracked-On: #1567
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-26 13:36:50 +08:00
Xiaoguang Wu 08a7227fe6 DM USB: xHCI: fix bug in port unassigning function
The function for port unassigning: pci_xhci_clr_native_port_assigned
should reset the 'info' member to all zero when it is called.

Tracked-On: #1434
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-26 13:36:50 +08:00
Xiaoguang Wu d7008408d0 DM USB: xHCI: fix issue: crash when plug device during UOS booting
This issue is result from reporting interrupt when the interrupt ability
of virtual xHCI is disabled.

As Event Ring State Machine showed in Figure 20 of xHCI spec, following
rules should be followed:
1 when RS bit of USBCMD register is zero, Event Ring should not be accessed;
2 when INTE bit of USBCMD register is zero, Interrupt should not be sent.

Tracked-On: #1566
Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liang Yang <liang3.yang@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-26 13:36:50 +08:00
Jian Jun Chen 655132fc8e dm: virtio: remove unused vbs_kernel_init
Tracked-On: #1364
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-25 15:39:57 +08:00
Liang Yang 80e02c9708 DM USB: xHCI: Fix an potential array out of range issue.
When usb device numbers reach up to XHCI_MAX_SLOTS. The slot_allocated
array will get out of range. This patch is used to fix this issue.

Tracked-On: #1479
Signed-off-by: Liang Yang <liang3.yang@intel.com>
Reviewed-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-25 13:46:05 +08:00
Liang Yang 84c0c87842 DM USB: xHCI: Fix a potential NULL pointer issue.
After excap pointer is assigned, it should be checked whether it's
possible to get assignment for NULL pointer or not. This patch
fixes this issue.

Tracked-On: #1479
Signed-off-by: Liang Yang <liang3.yang@intel.com>
Reviewed-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Liu Shuo <shuo.a.liu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-25 13:46:05 +08:00
Jie Deng 7195537a6b dm: virtio-net: replace banned functions
sscanf and strcpy are banned according to the security requirements.
So replace them with their safe alternative.

Tracked-on: #1496
Signed-off-by: Jie Deng <jie.deng@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
2018-10-24 18:16:37 +08:00