Special Notes: If you have Zoom connection issue by using web browser, please install & launch Zoom application, manually input the meeting ID (320664063) to join the Zoom meeting.

 

Agenda & Archives:

WW	Topic	Presenter	Status
WW04	ACRN PCI based vUART introduction	Tao Yuhong	1/20/2021

Chinese New Year Break

WW13

ACRN PTCM Introduction

Wang Yu / Huang Yonghua

3/24/2021

 

Project ACRN: A flexible, light-weight, open source reference hypervisor for IoT devices

https://projectacrn.org  ||  https://github.com/projectacrn  ||  info@...

We invite you to attend a monthly "Technical Community" meeting where we'll meet community members and talk about the ACRN project and plans.

As we explore community interest and involvement opportunities, we'll (re)schedule these meetings at a time convenient to most attendees:

• Meets every 3^rd Wednesday, Starting Jan 20, 2021: 11AM-12AM (China-Shanghai), 7PM-8PM (US-West Coast), 3AM-4AM (Europe-London)
• Chairperson: Terry ZOU, terry.zou@... (Intel)
• Online conference link: https://zoom.com.cn/j/320664063
• Zoom Meeting ID: 320 664 063
• Special Notes: If you have Zoom connection issue by using web browser, please launch Zoom application, manually input the meeting ID (320664063) to join the Zoom meeting.
• Online conference phone:

• China: +86 010 87833177  or 400 669 9381 (Toll Free)
• Germany: +49 (0) 30 3080 6188  or +49 800 724 3138 (Toll Free)
• US: +1 669 900 6833  or +1 646 558 8656   or +1 877 369 0926 (Toll Free) or +1 855 880 1246 (Toll Free)
• Additional international phone numbers

• Meeting Notes:

• Google doc: https://drive.google.com/drive/u/2/folders/111m6iU3PjSZebOOKzLagYPUWMvseGLeU

Or visit Github wiki if you can’t access Google doc: https://github.com/projectacrn/acrn-hypervisor/wiki/ACRN-Committee-and-Working-Group-Meetings#technical-community-meetings

 

Hi Jack, ACRN TCM is planned on every 3^rd Wednesday (monthly from 2021), 16:00~17:00 afternoon (PRC time).

I will re-send TCM meeting-series to you, welcome to join the next session : )

 

Best & Regards

Terry

From: acrn-users@... <acrn-users@...> On Behalf Of ???
Sent: Wednesday, March 24, 2021 6:11 PM
To: acrn-users@...
Subject: 回复：[acrn-users] 2021 ACRN Project Technical Community Meeting Minutes - WW13'21

 

你好，
。今天我参加11：00～12：00am的网上会议的时候没人么？是由于什么原因吗？

-------- 原始邮件 --------
主题：[acrn-users] 2021 ACRN Project Technical Community Meeting Minutes - WW13'21
发件人："Zou, Terry"
收件人：acrn-users@...," acrn-dev@..."
抄送：

ACRN Project TCM - 24th Mar 2021

Location  Online by Zoom: https://zoom.com.cn/j/320664063   

Attendees (Total 16, 24/03)

 

Note: If you need to edit this document, please ask for access. We disabled anonymous editing to keep track of changes and identify who are the owners of the opens and agenda items.

Note: When adding opens or agenda items, please provide details (not only links), add your name next to the item you have added and specify your expectation from the TCM 

Agenda

1.    ACRN project update: 

a.     Happy 3rd Birthday, Project ACRN™: https://projectacrn.org/happy-3rd-birthday-project-acrn/

2.     Open Source HW of Tiger Lake NUC update: NUC11 was officially published in https://www.intel.com/content/www/us/en/products/boards-kits/nuc/mini-pcs.html. ACRN is doing evaluation, stay tuned, will update in https://projectacrn.github.io/latest/reference/hardware.html

3.  “WW13’21 ACRN Real-Time Enhancement Introduction” Huang Yonghua

Download foil from ACRN Presentation->WW13’21

Description: We will briefly introduce key challenges of Real-Time, Latency in industrial usage and typical enhancement methodology in ACRN.

4.    All: Community open discussion.

Q&A: IO device performance with VirtIO in post-launched RTVM maybe lower than Pass-through devices in pre-launched RTVM. But pass-through device performance in Post-launched RTVM is similar to Pre-launched RTVM.

5.    Next meeting agenda proposal:

WW	Topic	Presenter	Status
WW04	ACRN PCI based vUART introduction	Tao Yuhong	1/20/2021

 

Chinese New Year Break

 

WW13

ACRN  Real-Time Enhancement

Huang Yonghua

3/24/2021

Resources

b.     Portal: https://projectacrn.org   

c.      Source code: https://github.com/projectacrn   

d.     email: info@... 

e.      Technical Mailing list: acrn-dev@... 

 

 

你好，
。今天我参加11：00～12：00am的网上会议的时候没人么？是由于什么原因吗？

ACRN Project TCM - 24th Mar 2021

Location  Online by Zoom: https://zoom.com.cn/j/320664063   

Attendees (Total 16, 24/03)

 

Note: If you need to edit this document, please ask for access. We disabled anonymous editing to keep track of changes and identify who are the owners of the opens and agenda items.

Note: When adding opens or agenda items, please provide details (not only links), add your name next to the item you have added and specify your expectation from the TCM 

Agenda

1. ACRN project update: 

1. Happy 3rd Birthday, Project ACRN™: https://projectacrn.org/happy-3rd-birthday-project-acrn/

1. Open Source HW of Tiger Lake NUC update: NUC11 was officially published in https://www.intel.com/content/www/us/en/products/boards-kits/nuc/mini-pcs.html. ACRN is doing evaluation, stay tuned, will update in https://projectacrn.github.io/latest/reference/hardware.html

1. “WW13’21 ACRN Real-Time Enhancement Introduction” Huang Yonghua

Download foil from ACRN Presentation->WW13’21

Description: We will briefly introduce key challenges of Real-Time, Latency in industrial usage and typical enhancement methodology in ACRN.

1. All: Community open discussion.

Q&A: IO device performance with VirtIO in post-launched RTVM maybe lower than Pass-through devices in pre-launched RTVM. But pass-through device performance in Post-launched RTVM is similar to Pre-launched RTVM.

1. Next meeting agenda proposal:

WW	Topic	Presenter	Status
WW04	ACRN PCI based vUART introduction	Tao Yuhong	1/20/2021

Chinese New Year Break

WW13

ACRN  Real-Time Enhancement

Huang Yonghua

3/24/2021

Resources

1. Portal: https://projectacrn.org   
2. Source code: https://github.com/projectacrn   
3. email: info@... 
4. Technical Mailing list: acrn-dev@... 

 

 

Hi Victor,
        update the grub2.05 according to this https://projectacrn.github.io/latest/tutorials/using_grub.html?#installing-self-built-grub, copy the grubx64.efi to /boot/efi/EFI/ubuntu . But grub cannot boot ubuntu to startup. Is the file in the wrong place?


Thanks and Best Regards,
zhangshuai

-----Original Message-----
From: acrn-users@... <acrn-users@...>
On Behalf Of "??????-?????-??
Sent: Thursday, February 4, 2021 10:27 AM
To: acrn-users@...
Cc: ligang@...; wumengkui@...; lijia@...;
hujunke@...; hudongjiang@...
Subject: Re: [acrn-users] Can't enable uart for Ubuntu SOS

Hi Victor,
        update the grub2.05 according to this
https://projectacrn.github.io/latest/tutorials/using_grub.html?#installing-
self-built-grub,
copy the grubx64.efi to /boot/efi/EFI/ubuntu . But grub cannot boot ubuntu
to startup. Is the file in the wrong place?


Thanks and Best Regards,
zhangshuai

--

Xi'an R&D Center Computerized Numerical Control R&D Dept. Shuai Zhang
Tel : 029-84503040-8360
E-mail :zhangshuai@... Web :www.jingdiao.com

 

From: Victor Sun

Date: 2021-02-04 10:37

To: acrn-users@...

Subject: Re: [acrn-users] Can't enable uart for Ubuntu SOS

Hi Shuai,

First of all, make sure your grub has below commit:

http://git.savannah.gnu.org/cgit/grub.git/commit/?id=0f3f5b7c13fa9b677a64cf11f20eca0f850a2b20 multiboot2: Set min address for mbi allocation to 0x1000

 

If the issue still occurs, please post your board file and scenario file.

 

BR,

Victor

 

From: acrn-users@... <acrn-users@...> On Behalf Of "西安研发中心-数控研发部-张帅
Sent: Thursday, February 4, 2021 10:26 AM
To: acrn-users@...
Subject: [acrn-users] Can't enable uart for Ubuntu SOS

 

Hello,
        We have a development board with i5-7300U and tried to install acrn sos. We generated the board and scenario xmls using ACRN Configuration Tool, builded the acrn Hypervisor with RELEASE=0. When boot into ubuntu-service-vm, the system got stuck with HDMI show "loading ACRN..."
        There is a serial port on the board, so we want to output the boot log. The setting of the uart is as fellows. The serial works ok when boot into the Ubuntu without acrn kernel(native boot?) ; but there is nothing output when boot into  ubuntu-service-vm.  Is this configuration correct? or should I do something else?

$ dmesg | grep tty
[   13.399735] dw-apb-uart.2: ttyS4 at MMIO 0xb151b000 (irq = 20, base_baud = 115200) is a 16550A
[   13.399769] printk: console [ttyS4] enabled

$ vi /etc/grub.d/40_custom
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
menuentry "ACRN Multiboot Ubuntu Service VM" --id ubuntu-service-vm {
  load_video
  insmod gzio
  insmod part_gpt
  insmod ext2

  search --no-floppy --fs-uuid --set 9efd748b-88fc-4082-b2f9-2e91b6e3dc07
  echo 'loading ACRN...'
  multiboot2 /boot/acrn/acrn.bin  root=PARTUUID="41d2eeec-fd7b-4479-9ae0-3a41845d25ff" uart=mmio@0xb151b000
  module2 /boot/bzImage Linux_bzImage
}


Best Regards
zhangshuai

 

------------------------- 

Xi'an R&D Center Computerized Numerical Control R&D Dept.  Shuai Zhang 

Tel : 029-84503040-8360 

E-mail :  zhangshuai@...     Web :  www.jingdiao.com

Hello,
        We have a development board with i5-7300U and tried to install acrn sos. We generated the board and scenario xmls using ACRN Configuration Tool, builded the acrn Hypervisor with RELEASE=0. When boot into ubuntu-service-vm, the system got stuck with HDMI show "loading ACRN..."
        There is a serial port on the board, so we want to output the boot log. The setting of the uart is as fellows. The serial works ok when boot into the Ubuntu without acrn kernel(native boot?) ; but there is nothing output when boot into  ubuntu-service-vm.  Is this configuration correct? or should I do something else?

$ dmesg | grep tty
[   13.399735] dw-apb-uart.2: ttyS4 at MMIO 0xb151b000 (irq = 20, base_baud = 115200) is a 16550A
[   13.399769] printk: console [ttyS4] enabled

$ vi /etc/grub.d/40_custom
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
menuentry "ACRN Multiboot Ubuntu Service VM" --id ubuntu-service-vm {
  load_video
  insmod gzio
  insmod part_gpt
  insmod ext2

  search --no-floppy --fs-uuid --set 9efd748b-88fc-4082-b2f9-2e91b6e3dc07
  echo 'loading ACRN...'
  multiboot2 /boot/acrn/acrn.bin  root=PARTUUID="41d2eeec-fd7b-4479-9ae0-3a41845d25ff" uart=mmio@0xb151b000
  module2 /boot/bzImage Linux_bzImage
}


Best Regards
zhangshuai

------------------------- 

Xi'an R&D Center Computerized Numerical Control R&D Dept.  Shuai Zhang 

Tel : 029-84503040-8360 

E-mail :  zhangshuai@...     Web :  www.jingdiao.com

-----Original Message-----
From: acrn-users@... <acrn-users@...>
On Behalf Of Jacky Lau
Sent: Monday, February 1, 2021 2:06 PM
To: acrn-users@...
Subject: Re: [acrn-users] GVT init failed when install windows

Got it, thank you.

Liu, Fuzhong <fuzhong.liu@...> 于2021年2月1日周一 下午4:17写道
：

Hi Jacky
There is the known GVT-g issue after v2.0, please try v2.0 if you MUST use

GVT-g.

BR.
Fuzhong

-----Original Message-----
From: acrn-users@...
<acrn-users@...> On Behalf Of Jacky Lau
Sent: Thursday, January 28, 2021 10:31 PM
To: acrn-users@...
Subject: Re: [acrn-users] GVT init failed when install windows

Well, I'm using acrn v2.3, so I following this tutorial:
https://projectacrn.github.io/2.3/tutorials/using_windows_as_uos.html

I checked the code and fixed the gvt init failed issue by enlarged

PCI_EMUL_MEMLIMIT32.

The install_win.sh run successful. But nothing displayed on my hdmi

screen.

When I run install_win.sh, the kernel print messages:
[ 214.077918] IRQ 122: no longer affine to CPU1 [ 214.079031] smpboot:

CPU 1 is now offline [ 215.083296] vhm: try to offline cpu 1 with lapicid 2 [
215.110031] IRQ 120: no longer affine to CPU2 [ 215.112118] smpboot: CPU 2
is now offline [ 216.114476] vhm: try to offline cpu 2 with lapicid 1 [
216.130278] IRQ 124: no longer affine to CPU3 [ 216.131571] smpboot: CPU 3
is now offline [ 217.135012] vhm: try to offline cpu 3 with lapicid 3 [
217.190688] vhm_dev_open: opening device node [ 217.191180] vhm-ioreq:
init request buffer @ 00000000d5da3ebd!

[ 217.191184] vhm-ioreq: created ioreq client 1 for ioeventfd-1 [

217.191214] ACRN vhm ioeventfd init done!

[ 217.191222] ACRN vhm irqfd init done!
[ 217.191223] vhm: VM 1 created
[ 217.385657] vhm-ioreq: created ioreq client 2 for ioreq gvt-g [
217.387846] IPv6: ADDRCONF(NETDEV_CHANGE): tap0: link becomes ready

[

217.387871] acrn-br0: port 1(tap0) entered blocking state [
217.387873] acrn-br0: port 1(tap0) entered forwarding state [
217.475601] vhm-ioreq: created ioreq client 3 for acrndm [
217.563042] [drm] prepare GOP fb: 8100KB for 1920X1080@32 [
217.567443] [drm] Set up display w:1920 h:1080 for GOP [ 217.567456]
gvt: vgpu 1: pvinfo read gop: [78860:4] = df000000 [ 217.567758] gvt:
vgpu 1: pvinfo read gop: [78864:4] = 780 [ 217.567904] gvt: vgpu 1:
pvinfo read gop: [78868:4] = 438 [ 217.568049] gvt: vgpu 1: pvinfo
read gop: [7886c:4] = 780 [ 217.568194] gvt: vgpu 1: pvinfo read gop:
[78870:4] = 4 [ 217.568336] gvt: vgpu 1: pvinfo read gop: [78874:4] =
7e9000 [ 217.574251] [drm:intel_cpu_fifo_underrun_irq_handler]
*ERROR* CPU pipe A FIFO underrun [ 496.745805] [drm] hotplug can't be
supported in idv [ 497.781306] [drm] hotplug can't be supported in
idv [ 498.869303] [drm] hotplug can't be supported in idv

I must use GTV-g, as I need to display different content on different

screens.

Geoffroy Van Cutsem <geoffroy.vancutsem@...> 于2021年1月28

日周四

下午8:21写道：

Hi,

Were you following this tutorial when you hit this issue?
https://projectacrn.github.io/latest/tutorials/using_windows_as_uos.
ht
ml

We switched at some point and are now using GVT-d (direct

assignement) to run Windows as a Guest, and I believe there are some
known issues if trying to install Windows using GTV-g. Which version of ACRN
are you using?

Thanks,
Geoffroy

-----Original Message-----
From: acrn-users@...
<acrn-users@...>
On Behalf Of Jacky Lau
Sent: Thursday, January 28, 2021 10:03 AM
To: acrn-users@...
Subject: [acrn-users] GVT init failed when install windows

Hi, all.
After setup an ACRN Industry Scenario with Ubuntu Service VM, I
want to launch Windows as the Guest VM. But there are some issues
when I install windows.

1. Service VM boot time become very long when enable gvt:
...
[ 0.699211] Linux agpgart interface v0.103
[ 0.699424] vhm: initializing
[ 0.699427] vhm: hv api version 1.0
[ 0.699428] vhm: registered correctly with major number 243
[ 0.699431] vhm: device class registered correctly
[ 0.699457] register IPI handler
[ 0.699515] vhm: Virtio & Hypervisor service module initialized
[ 0.700422] i915 0000:00:02.0: Direct firmware load for
i915/gvt/vid_0x8086_did_0x5912_rid_0x04.golden_hw_state failed
with error -2
[ 0.700424] i915 0000:00:02.0: Falling back to sysfs fallback for:
i915/gvt/vid_0x8086_did_0x5912_rid_0x04.golden_hw_state
[ 1.458633] tsc: Refined TSC clocksource calibration: 3912.000 MHz
[ 1.458640] clocksource: tsc: mask: 0xffffffffffffffff max_cycles:
0x70c747804da, max_idle_ns: 881591211608 ns
[ 1.458656] clocksource: Switched to clocksource tsc
[ 62.531820] [drm] Supports vblank timestamp caching Rev 2

(21.10.2013).

[ 62.531821] [drm] Driver supports precise vblank timestamp query.
[ 62.532332] i915 0000:00:02.0: vgaarb: changed VGA decodes:
olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 62.532346] [drm] Skip DMC firmware loading in IDV
[ 62.532347] i915 0000:00:02.0: Failed to load DMC firmware
i915/kbl_dmc_ver1_04.bin. Disabling runtime power management.
[ 62.532348] i915 0000:00:02.0: DMC firmware homepage:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-
firmware.git/tree/i915
[ 62.532567] [drm] Disable FBC for direct display in IDV
[ 64.563004] [drm] Initialized i915 1.6.0 20191101 for 0000:00:02.0 on

minor 0

[ 64.565045] ACPI: Video Device [GFX0] (multi-head: yes rom: no post:

no)

[ 64.565372] input: Video Bus as

/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/inpu

t3
[ 64.568575] brd: module loaded
[ 64.570271] loop: module loaded
[ 64.570359] zram: Added device: zram0
[ 64.570457] mei_me 0000:00:16.0: enabling device (0000 -> 0002)
...

The kernel parameters of my Service VM is:
root=/dev/sda3 console=ttyS0 idle=halt rw rootwait console=tty0
consoleblank=0 no_timer_check quiet loglevel=3
i915.nuclear_pageflip=1
hvlog=2M@0xe00000 memmap=0x200000$0xe00000 maxcpus=4
root=PARTUUID=28259bf2-ab31-1048-a7b8-96cf62ef034f

intel_iommu=on

i915.enable_gvt=1 i915.enable_guc=0 i915.enable_inital_modeset=1
hugepagesz=1G hugepages=4

Full dmesg is in the attached file.

2. acrn-dm report "gvt pci bases are out of range" when init gvt:
jacky@acrn:~/acrn-work$ sudo ./install_win.sh
cpu1 online=0
cpu2 online=0
cpu3 online=0
passed gvt-g optargs low_gm 64, high_gm 448, fence 8
SW_LOAD: get ovmf path /usr/share/acrn/bios/OVMF.fd, size 0x200000
vm_create: win_vm1
VHM api version 1.0
vm_setup_memory: size=0x100000000
open hugetlbfs file

/run/hugepage/acrn/huge_lv1/win_vm1/D279543825D611E8864ECB7A18B34

643
open hugetlbfs file

/run/hugepage/acrn/huge_lv2/win_vm1/D279543825D611E8864ECB7A18B34

643
level 0 free/need pages:1/1 page size:0x200000 level 1 free/need
pages:4/4 page size:0x40000000

try to setup hugepage with:
level 0 - lowmem 0x0, biosmem 0x200000, highmem 0x0
level 1 - lowmem 0x80000000, biosmem 0x0, highmem
0x80000000 total_size 0x200000000

mmap ptr 0x0x7fd9e6fbf000 -> baseaddr 0x0x7fda00000000 mmap
0x80000000@0x7fda00000000 touch 2 pages with pagesz 0x40000000
mmap
0x80000000@0x7fdb40000000 touch 2 pages with pagesz 0x40000000
mmap
0x200000@0x7fdaffe00000 touch 1 pages with pagesz 0x200000

really setup hugepage with:
level 0 - lowmem 0x0, biosmem 0x200000, highmem 0x0
level 1 - lowmem 0x80000000, biosmem 0x0, highmem
0x80000000 vm_init_vdevs No correct pm notify channel given pci
init hostbridge pci init lpc pci init pci-gvt gvt pci bases are out of range
GVT: init failed
pci pci-gvt init
failed

polling 34...

Listening 34...

Stop listening 34...

Stop polling 34...

No
correct pm notify channel given


Unable to init vdev (2)

my install_win.sh script:
#!/bin/bash
# Copyright (C) 2019 Intel Corporation.
# SPDX-License-Identifier: BSD-3-Clause

function launch_win()
{
vm_name=win_vm$1

#check if the vm is running or not vm_ps=$(pgrep -a -f acrn-dm)
result=$(echo $vm_ps | grep "${vm_name}") if [[ "$result" != ""
]]; then echo "$vm_name is running, can't create twice!"
exit
fi

#for memsize setting
mem_size=4096M

acrn-dm -A -m $mem_size -s 0:0,hostbridge -s 1:0,lpc -l com1,stdio
\ -s 2,pci- gvt -G "$2" \ -s 3,virtio-blk,./win10-20h2.img \ -s
4,virtio-net,tap0 \ -s
6,xhci,1-7 \ -s 8,ahci,cd:./Windows.iso \ -s
9,ahci,cd:./virtio-win-0.1.190.iso \ --ovmf
/usr/share/acrn/bios/OVMF.fd \ --windows \ $vm_name }

# offline SOS CPUs except BSP before launch UOS for i in `ls -d
/sys/devices/system/cpu/cpu[1-99]`; do
online=`cat $i/online`
idx=`echo $i | tr -cd "[1-99]"`
echo cpu$idx online=$online
if [ "$online" = "1" ]; then
echo 0 > $i/online
# during boot time, cpu hotplug may be disabled by
pci_device_probe during a pci module insmod
while [ "$online" = "1" ]; do
sleep 1
echo 0 > $i/online
online=`cat $i/online`
done
echo $idx > /sys/class/vhm/acrn_vhm/offline_cpu
fi
done

launch_win 1 "64 448 8"


3. There are no mdev_supported_types file in the /sys filesystem
jacky@acrn:~/acrn-work$ lspci|grep -i vga
00:02.0 VGA compatible controller: Intel Corporation HD Graphics
630 (rev 04)

jacky@acrn:~/acrn-work$ ls -l
/sys/devices/pci0000\:00/0000\:00\:02.0/
total 0
-r--r--r-- 1 root root 4096 Jan 28 15:58 ari_enabled
-r--r--r-- 1 root root 4096 Jan 28 15:58 boot_vga
-rw-r--r-- 1 root root 4096 Jan 28 15:58 broken_parity_status
-r--r--r-- 1 root root 4096 Jan 28 15:58 class
-rw-r--r-- 1 root root 4096 Jan 28 15:58 config
-r--r--r-- 1 root root 4096 Jan 28 15:58 consistent_dma_mask_bits
-r--r--r-- 1 root root 4096 Jan 28 15:58 current_link_speed
-r--r--r-- 1 root root 4096 Jan 28 15:58 current_link_width
-rw-r--r-- 1 root root 4096 Jan 28 15:58 d3cold_allowed
-r--r--r-- 1 root root 4096 Jan 28 15:58 device
-r--r--r-- 1 root root 4096 Jan 28 15:58 dma_mask_bits
lrwxrwxrwx 1 root root 0 Jan 28 15:58 driver ->
../../../bus/pci/drivers/i915
-rw-r--r-- 1 root root 4096 Jan 28 15:58 driver_override
drwxr-xr-x 4 root root 0 Jan 28 15:58 drm
-rw-r--r-- 1 root root 4096 Jan 28 15:58 enable
lrwxrwxrwx 1 root root 0 Jan 28 15:58 firmware_node ->
../../LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00
drwxr-xr-x 3 root root 0 Jan 28 15:58 graphics
-r-------- 1 root root 2101304 Jan 28 15:58 gvt_firmware
drwxr-xr-x 4 root root 0 Jan 28 15:58 i2c-0
drwxr-xr-x 4 root root 0 Jan 28 15:58 i2c-1
drwxr-xr-x 4 root root 0 Jan 28 15:58 i2c-2
-r--r--r-- 1 root root 4096 Jan 28 15:58 index
-r--r--r-- 1 root root 4096 Jan 28 15:58 irq
-r--r--r-- 1 root root 4096 Jan 28 15:58 label
-r--r--r-- 1 root root 4096 Jan 28 15:58 local_cpulist
-r--r--r-- 1 root root 4096 Jan 28 15:58 local_cpus
-r--r--r-- 1 root root 4096 Jan 28 15:58 max_link_speed
-r--r--r-- 1 root root 4096 Jan 28 15:58 max_link_width
-r--r--r-- 1 root root 4096 Jan 28 15:58 modalias
-rw-r--r-- 1 root root 4096 Jan 28 15:58 msi_bus
drwxr-xr-x 2 root root 0 Jan 28 15:58 msi_irqs
drwxr-xr-x 2 root root 0 Jan 28 15:58 power
--w--w---- 1 root root 4096 Jan 28 15:58 remove
--w------- 1 root root 4096 Jan 28 15:58 rescan
--w------- 1 root root 4096 Jan 28 15:58 reset
-r--r--r-- 1 root root 4096 Jan 28 15:58 resource
-rw------- 1 root root 16777216 Jan 28 15:58 resource0
-rw------- 1 root root 268435456 Jan 28 15:58 resource2
-rw------- 1 root root 268435456 Jan 28 15:58 resource2_wc
-rw------- 1 root root 64 Jan 28 15:58 resource4
-r--r--r-- 1 root root 4096 Jan 28 15:58 revision
-rw------- 1 root root 131072 Jan 28 15:58 rom
lrwxrwxrwx 1 root root 0 Jan 28 15:58 subsystem -> ../../../bus/pci
-r--r--r-- 1 root root 4096 Jan 28 15:58 subsystem_device
-r--r--r-- 1 root root 4096 Jan 28 15:58 subsystem_vendor
-rw-r--r-- 1 root root 4096 Jan 28 15:58 uevent
-r--r--r-- 1 root root 4096 Jan 28 15:58 vendor

So, do I miss anything?

Hi Jacky
There is the known GVT-g issue after v2.0, please try v2.0 if you MUST use GVT-g.

BR.
Fuzhong

-----Original Message-----
From: acrn-users@... <acrn-users@...> On Behalf Of Jacky Lau
Sent: Thursday, January 28, 2021 10:31 PM
To: acrn-users@...
Subject: Re: [acrn-users] GVT init failed when install windows

Well, I'm using acrn v2.3, so I following this tutorial:
https://projectacrn.github.io/2.3/tutorials/using_windows_as_uos.html

I checked the code and fixed the gvt init failed issue by enlarged PCI_EMUL_MEMLIMIT32.
The install_win.sh run successful. But nothing displayed on my hdmi screen.
When I run install_win.sh, the kernel print messages:
[ 214.077918] IRQ 122: no longer affine to CPU1 [ 214.079031] smpboot: CPU 1 is now offline [ 215.083296] vhm: try to offline cpu 1 with lapicid 2 [ 215.110031] IRQ 120: no longer affine to CPU2 [ 215.112118] smpboot: CPU 2 is now offline [ 216.114476] vhm: try to offline cpu 2 with lapicid 1 [ 216.130278] IRQ 124: no longer affine to CPU3 [ 216.131571] smpboot: CPU 3 is now offline [ 217.135012] vhm: try to offline cpu 3 with lapicid 3 [ 217.190688] vhm_dev_open: opening device node [ 217.191180] vhm-ioreq: init request buffer @ 00000000d5da3ebd!
[ 217.191184] vhm-ioreq: created ioreq client 1 for ioeventfd-1 [ 217.191214] ACRN vhm ioeventfd init done!
[ 217.191222] ACRN vhm irqfd init done!
[ 217.191223] vhm: VM 1 created
[ 217.385657] vhm-ioreq: created ioreq client 2 for ioreq gvt-g [ 217.387846] IPv6: ADDRCONF(NETDEV_CHANGE): tap0: link becomes ready [ 217.387871] acrn-br0: port 1(tap0) entered blocking state [ 217.387873] acrn-br0: port 1(tap0) entered forwarding state [ 217.475601] vhm-ioreq: created ioreq client 3 for acrndm [ 217.563042] [drm] prepare GOP fb: 8100KB for 1920X1080@32 [ 217.567443] [drm] Set up display w:1920 h:1080 for GOP [ 217.567456] gvt: vgpu 1: pvinfo read gop: [78860:4] = df000000 [ 217.567758] gvt: vgpu 1: pvinfo read gop: [78864:4] = 780 [ 217.567904] gvt: vgpu 1: pvinfo read gop: [78868:4] = 438 [ 217.568049] gvt: vgpu 1: pvinfo read gop: [7886c:4] = 780 [ 217.568194] gvt: vgpu 1: pvinfo read gop: [78870:4] = 4 [ 217.568336] gvt: vgpu 1: pvinfo read gop: [78874:4] = 7e9000 [ 217.574251] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe A FIFO underrun [ 496.745805] [drm] hotplug can't be supported in idv [ 497.781306] [drm] hotplug can't be supported in idv [ 498.869303] [drm] hotplug can't be supported in idv

I must use GTV-g, as I need to display different content on different screens.

Geoffroy Van Cutsem <geoffroy.vancutsem@...> 于2021年1月28日周四 下午8:21写道：

Hi,

Were you following this tutorial when you hit this issue?
https://projectacrn.github.io/latest/tutorials/using_windows_as_uos.ht
ml

We switched at some point and are now using GVT-d (direct assignement) to run Windows as a Guest, and I believe there are some known issues if trying to install Windows using GTV-g. Which version of ACRN are you using?

Thanks,
Geoffroy

-----Original Message-----
From: acrn-users@...
<acrn-users@...>
On Behalf Of Jacky Lau
Sent: Thursday, January 28, 2021 10:03 AM
To: acrn-users@...
Subject: [acrn-users] GVT init failed when install windows

Hi, all.
After setup an ACRN Industry Scenario with Ubuntu Service VM, I want
to launch Windows as the Guest VM. But there are some issues when I
install windows.

1. Service VM boot time become very long when enable gvt:
...
[ 0.699211] Linux agpgart interface v0.103
[ 0.699424] vhm: initializing
[ 0.699427] vhm: hv api version 1.0
[ 0.699428] vhm: registered correctly with major number 243
[ 0.699431] vhm: device class registered correctly
[ 0.699457] register IPI handler
[ 0.699515] vhm: Virtio & Hypervisor service module initialized
[ 0.700422] i915 0000:00:02.0: Direct firmware load for
i915/gvt/vid_0x8086_did_0x5912_rid_0x04.golden_hw_state failed with
error -2
[ 0.700424] i915 0000:00:02.0: Falling back to sysfs fallback for:
i915/gvt/vid_0x8086_did_0x5912_rid_0x04.golden_hw_state
[ 1.458633] tsc: Refined TSC clocksource calibration: 3912.000 MHz
[ 1.458640] clocksource: tsc: mask: 0xffffffffffffffff max_cycles:
0x70c747804da, max_idle_ns: 881591211608 ns
[ 1.458656] clocksource: Switched to clocksource tsc
[ 62.531820] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 62.531821] [drm] Driver supports precise vblank timestamp query.
[ 62.532332] i915 0000:00:02.0: vgaarb: changed VGA decodes:
olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 62.532346] [drm] Skip DMC firmware loading in IDV
[ 62.532347] i915 0000:00:02.0: Failed to load DMC firmware
i915/kbl_dmc_ver1_04.bin. Disabling runtime power management.
[ 62.532348] i915 0000:00:02.0: DMC firmware homepage:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-
firmware.git/tree/i915
[ 62.532567] [drm] Disable FBC for direct display in IDV
[ 64.563004] [drm] Initialized i915 1.6.0 20191101 for 0000:00:02.0 on minor 0
[ 64.565045] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
[ 64.565372] input: Video Bus as
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/inpu
t3
[ 64.568575] brd: module loaded
[ 64.570271] loop: module loaded
[ 64.570359] zram: Added device: zram0
[ 64.570457] mei_me 0000:00:16.0: enabling device (0000 -> 0002)
...

The kernel parameters of my Service VM is:
root=/dev/sda3 console=ttyS0 idle=halt rw rootwait console=tty0
consoleblank=0 no_timer_check quiet loglevel=3
i915.nuclear_pageflip=1
hvlog=2M@0xe00000 memmap=0x200000$0xe00000 maxcpus=4
root=PARTUUID=28259bf2-ab31-1048-a7b8-96cf62ef034f intel_iommu=on
i915.enable_gvt=1 i915.enable_guc=0 i915.enable_inital_modeset=1
hugepagesz=1G hugepages=4

Full dmesg is in the attached file.

2. acrn-dm report "gvt pci bases are out of range" when init gvt:
jacky@acrn:~/acrn-work$ sudo ./install_win.sh
cpu1 online=0
cpu2 online=0
cpu3 online=0
passed gvt-g optargs low_gm 64, high_gm 448, fence 8
SW_LOAD: get ovmf path /usr/share/acrn/bios/OVMF.fd, size 0x200000
vm_create: win_vm1
VHM api version 1.0
vm_setup_memory: size=0x100000000
open hugetlbfs file
/run/hugepage/acrn/huge_lv1/win_vm1/D279543825D611E8864ECB7A18B34
643
open hugetlbfs file
/run/hugepage/acrn/huge_lv2/win_vm1/D279543825D611E8864ECB7A18B34
643
level 0 free/need pages:1/1 page size:0x200000 level 1 free/need
pages:4/4 page size:0x40000000

try to setup hugepage with:
level 0 - lowmem 0x0, biosmem 0x200000, highmem 0x0
level 1 - lowmem 0x80000000, biosmem 0x0, highmem 0x80000000
total_size 0x200000000

mmap ptr 0x0x7fd9e6fbf000 -> baseaddr 0x0x7fda00000000 mmap
0x80000000@0x7fda00000000 touch 2 pages with pagesz 0x40000000 mmap
0x80000000@0x7fdb40000000 touch 2 pages with pagesz 0x40000000 mmap
0x200000@0x7fdaffe00000 touch 1 pages with pagesz 0x200000

really setup hugepage with:
level 0 - lowmem 0x0, biosmem 0x200000, highmem 0x0
level 1 - lowmem 0x80000000, biosmem 0x0, highmem 0x80000000
vm_init_vdevs No correct pm notify channel given pci init hostbridge
pci init lpc pci init pci-gvt gvt pci bases are out of range
GVT: init failed
pci pci-gvt init failed

polling 34...

Listening 34...

Stop listening 34...

Stop polling 34...

No
correct pm notify channel given


Unable to init vdev (2)

my install_win.sh script:
#!/bin/bash
# Copyright (C) 2019 Intel Corporation.
# SPDX-License-Identifier: BSD-3-Clause

function launch_win()
{
vm_name=win_vm$1

#check if the vm is running or not
vm_ps=$(pgrep -a -f acrn-dm)
result=$(echo $vm_ps | grep "${vm_name}") if [[ "$result" != "" ]];
then echo "$vm_name is running, can't create twice!"
exit
fi

#for memsize setting
mem_size=4096M

acrn-dm -A -m $mem_size -s 0:0,hostbridge -s 1:0,lpc -l com1,stdio \
-s 2,pci- gvt -G "$2" \ -s 3,virtio-blk,./win10-20h2.img \ -s
4,virtio-net,tap0 \ -s
6,xhci,1-7 \ -s 8,ahci,cd:./Windows.iso \ -s
9,ahci,cd:./virtio-win-0.1.190.iso \ --ovmf
/usr/share/acrn/bios/OVMF.fd \ --windows \ $vm_name }

# offline SOS CPUs except BSP before launch UOS for i in `ls -d
/sys/devices/system/cpu/cpu[1-99]`; do
online=`cat $i/online`
idx=`echo $i | tr -cd "[1-99]"`
echo cpu$idx online=$online
if [ "$online" = "1" ]; then
echo 0 > $i/online
# during boot time, cpu hotplug may be disabled by
pci_device_probe during a pci module insmod
while [ "$online" = "1" ]; do
sleep 1
echo 0 > $i/online
online=`cat $i/online`
done
echo $idx > /sys/class/vhm/acrn_vhm/offline_cpu
fi
done

launch_win 1 "64 448 8"


3. There are no mdev_supported_types file in the /sys filesystem
jacky@acrn:~/acrn-work$ lspci|grep -i vga
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 630
(rev 04)

jacky@acrn:~/acrn-work$ ls -l
/sys/devices/pci0000\:00/0000\:00\:02.0/
total 0
-r--r--r-- 1 root root 4096 Jan 28 15:58 ari_enabled
-r--r--r-- 1 root root 4096 Jan 28 15:58 boot_vga
-rw-r--r-- 1 root root 4096 Jan 28 15:58 broken_parity_status
-r--r--r-- 1 root root 4096 Jan 28 15:58 class
-rw-r--r-- 1 root root 4096 Jan 28 15:58 config
-r--r--r-- 1 root root 4096 Jan 28 15:58 consistent_dma_mask_bits
-r--r--r-- 1 root root 4096 Jan 28 15:58 current_link_speed
-r--r--r-- 1 root root 4096 Jan 28 15:58 current_link_width
-rw-r--r-- 1 root root 4096 Jan 28 15:58 d3cold_allowed
-r--r--r-- 1 root root 4096 Jan 28 15:58 device
-r--r--r-- 1 root root 4096 Jan 28 15:58 dma_mask_bits
lrwxrwxrwx 1 root root 0 Jan 28 15:58 driver ->
../../../bus/pci/drivers/i915
-rw-r--r-- 1 root root 4096 Jan 28 15:58 driver_override
drwxr-xr-x 4 root root 0 Jan 28 15:58 drm
-rw-r--r-- 1 root root 4096 Jan 28 15:58 enable
lrwxrwxrwx 1 root root 0 Jan 28 15:58 firmware_node ->
../../LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00
drwxr-xr-x 3 root root 0 Jan 28 15:58 graphics
-r-------- 1 root root 2101304 Jan 28 15:58 gvt_firmware
drwxr-xr-x 4 root root 0 Jan 28 15:58 i2c-0
drwxr-xr-x 4 root root 0 Jan 28 15:58 i2c-1
drwxr-xr-x 4 root root 0 Jan 28 15:58 i2c-2
-r--r--r-- 1 root root 4096 Jan 28 15:58 index
-r--r--r-- 1 root root 4096 Jan 28 15:58 irq
-r--r--r-- 1 root root 4096 Jan 28 15:58 label
-r--r--r-- 1 root root 4096 Jan 28 15:58 local_cpulist
-r--r--r-- 1 root root 4096 Jan 28 15:58 local_cpus
-r--r--r-- 1 root root 4096 Jan 28 15:58 max_link_speed
-r--r--r-- 1 root root 4096 Jan 28 15:58 max_link_width
-r--r--r-- 1 root root 4096 Jan 28 15:58 modalias
-rw-r--r-- 1 root root 4096 Jan 28 15:58 msi_bus
drwxr-xr-x 2 root root 0 Jan 28 15:58 msi_irqs
drwxr-xr-x 2 root root 0 Jan 28 15:58 power
--w--w---- 1 root root 4096 Jan 28 15:58 remove
--w------- 1 root root 4096 Jan 28 15:58 rescan
--w------- 1 root root 4096 Jan 28 15:58 reset
-r--r--r-- 1 root root 4096 Jan 28 15:58 resource
-rw------- 1 root root 16777216 Jan 28 15:58 resource0
-rw------- 1 root root 268435456 Jan 28 15:58 resource2
-rw------- 1 root root 268435456 Jan 28 15:58 resource2_wc
-rw------- 1 root root 64 Jan 28 15:58 resource4
-r--r--r-- 1 root root 4096 Jan 28 15:58 revision
-rw------- 1 root root 131072 Jan 28 15:58 rom
lrwxrwxrwx 1 root root 0 Jan 28 15:58 subsystem -> ../../../bus/pci
-r--r--r-- 1 root root 4096 Jan 28 15:58 subsystem_device
-r--r--r-- 1 root root 4096 Jan 28 15:58 subsystem_vendor
-rw-r--r-- 1 root root 4096 Jan 28 15:58 uevent
-r--r--r-- 1 root root 4096 Jan 28 15:58 vendor

So, do I miss anything?

Hi,

Were you following this tutorial when you hit this issue?
https://projectacrn.github.io/latest/tutorials/using_windows_as_uos.ht
ml

We switched at some point and are now using GVT-d (direct assignement) to run Windows as a Guest, and I believe there are some known issues if trying to install Windows using GTV-g. Which version of ACRN are you using?

Thanks,
Geoffroy

-----Original Message-----
From: acrn-users@...
<acrn-users@...>
On Behalf Of Jacky Lau
Sent: Thursday, January 28, 2021 10:03 AM
To: acrn-users@...
Subject: [acrn-users] GVT init failed when install windows

Hi, all.
After setup an ACRN Industry Scenario with Ubuntu Service VM, I want
to launch Windows as the Guest VM. But there are some issues when I
install windows.

1. Service VM boot time become very long when enable gvt:
...
[ 0.699211] Linux agpgart interface v0.103
[ 0.699424] vhm: initializing
[ 0.699427] vhm: hv api version 1.0
[ 0.699428] vhm: registered correctly with major number 243
[ 0.699431] vhm: device class registered correctly
[ 0.699457] register IPI handler
[ 0.699515] vhm: Virtio & Hypervisor service module initialized
[ 0.700422] i915 0000:00:02.0: Direct firmware load for
i915/gvt/vid_0x8086_did_0x5912_rid_0x04.golden_hw_state failed with
error -2
[ 0.700424] i915 0000:00:02.0: Falling back to sysfs fallback for:
i915/gvt/vid_0x8086_did_0x5912_rid_0x04.golden_hw_state
[ 1.458633] tsc: Refined TSC clocksource calibration: 3912.000 MHz
[ 1.458640] clocksource: tsc: mask: 0xffffffffffffffff max_cycles:
0x70c747804da, max_idle_ns: 881591211608 ns
[ 1.458656] clocksource: Switched to clocksource tsc
[ 62.531820] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 62.531821] [drm] Driver supports precise vblank timestamp query.
[ 62.532332] i915 0000:00:02.0: vgaarb: changed VGA decodes:
olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 62.532346] [drm] Skip DMC firmware loading in IDV
[ 62.532347] i915 0000:00:02.0: Failed to load DMC firmware
i915/kbl_dmc_ver1_04.bin. Disabling runtime power management.
[ 62.532348] i915 0000:00:02.0: DMC firmware homepage:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-
firmware.git/tree/i915
[ 62.532567] [drm] Disable FBC for direct display in IDV
[ 64.563004] [drm] Initialized i915 1.6.0 20191101 for 0000:00:02.0 on minor 0
[ 64.565045] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
[ 64.565372] input: Video Bus as
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/inpu
t3
[ 64.568575] brd: module loaded
[ 64.570271] loop: module loaded
[ 64.570359] zram: Added device: zram0
[ 64.570457] mei_me 0000:00:16.0: enabling device (0000 -> 0002)
...

The kernel parameters of my Service VM is:
root=/dev/sda3 console=ttyS0 idle=halt rw rootwait console=tty0
consoleblank=0 no_timer_check quiet loglevel=3
i915.nuclear_pageflip=1
hvlog=2M@0xe00000 memmap=0x200000$0xe00000 maxcpus=4
root=PARTUUID=28259bf2-ab31-1048-a7b8-96cf62ef034f intel_iommu=on
i915.enable_gvt=1 i915.enable_guc=0 i915.enable_inital_modeset=1
hugepagesz=1G hugepages=4

Full dmesg is in the attached file.

2. acrn-dm report "gvt pci bases are out of range" when init gvt:
jacky@acrn:~/acrn-work$ sudo ./install_win.sh
cpu1 online=0
cpu2 online=0
cpu3 online=0
passed gvt-g optargs low_gm 64, high_gm 448, fence 8
SW_LOAD: get ovmf path /usr/share/acrn/bios/OVMF.fd, size 0x200000
vm_create: win_vm1
VHM api version 1.0
vm_setup_memory: size=0x100000000
open hugetlbfs file
/run/hugepage/acrn/huge_lv1/win_vm1/D279543825D611E8864ECB7A18B34
643
open hugetlbfs file
/run/hugepage/acrn/huge_lv2/win_vm1/D279543825D611E8864ECB7A18B34
643
level 0 free/need pages:1/1 page size:0x200000 level 1 free/need
pages:4/4 page size:0x40000000

try to setup hugepage with:
level 0 - lowmem 0x0, biosmem 0x200000, highmem 0x0
level 1 - lowmem 0x80000000, biosmem 0x0, highmem 0x80000000
total_size 0x200000000

mmap ptr 0x0x7fd9e6fbf000 -> baseaddr 0x0x7fda00000000 mmap
0x80000000@0x7fda00000000 touch 2 pages with pagesz 0x40000000 mmap
0x80000000@0x7fdb40000000 touch 2 pages with pagesz 0x40000000 mmap
0x200000@0x7fdaffe00000 touch 1 pages with pagesz 0x200000

really setup hugepage with:
level 0 - lowmem 0x0, biosmem 0x200000, highmem 0x0
level 1 - lowmem 0x80000000, biosmem 0x0, highmem 0x80000000
vm_init_vdevs No correct pm notify channel given pci init hostbridge
pci init lpc pci init pci-gvt gvt pci bases are out of range
GVT: init failed
pci pci-gvt init failed

polling 34...

Listening 34...

Stop listening 34...

Stop polling 34...

No
correct pm notify channel given


Unable to init vdev (2)

my install_win.sh script:
#!/bin/bash
# Copyright (C) 2019 Intel Corporation.
# SPDX-License-Identifier: BSD-3-Clause

function launch_win()
{
vm_name=win_vm$1

#check if the vm is running or not
vm_ps=$(pgrep -a -f acrn-dm)
result=$(echo $vm_ps | grep "${vm_name}") if [[ "$result" != "" ]];
then echo "$vm_name is running, can't create twice!"
exit
fi

#for memsize setting
mem_size=4096M

acrn-dm -A -m $mem_size -s 0:0,hostbridge -s 1:0,lpc -l com1,stdio \
-s 2,pci- gvt -G "$2" \ -s 3,virtio-blk,./win10-20h2.img \ -s
4,virtio-net,tap0 \ -s
6,xhci,1-7 \ -s 8,ahci,cd:./Windows.iso \ -s
9,ahci,cd:./virtio-win-0.1.190.iso \ --ovmf
/usr/share/acrn/bios/OVMF.fd \ --windows \ $vm_name }

# offline SOS CPUs except BSP before launch UOS for i in `ls -d
/sys/devices/system/cpu/cpu[1-99]`; do
online=`cat $i/online`
idx=`echo $i | tr -cd "[1-99]"`
echo cpu$idx online=$online
if [ "$online" = "1" ]; then
echo 0 > $i/online
# during boot time, cpu hotplug may be disabled by
pci_device_probe during a pci module insmod
while [ "$online" = "1" ]; do
sleep 1
echo 0 > $i/online
online=`cat $i/online`
done
echo $idx > /sys/class/vhm/acrn_vhm/offline_cpu
fi
done

launch_win 1 "64 448 8"


3. There are no mdev_supported_types file in the /sys filesystem
jacky@acrn:~/acrn-work$ lspci|grep -i vga
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 630
(rev 04)

jacky@acrn:~/acrn-work$ ls -l
/sys/devices/pci0000\:00/0000\:00\:02.0/
total 0
-r--r--r-- 1 root root 4096 Jan 28 15:58 ari_enabled
-r--r--r-- 1 root root 4096 Jan 28 15:58 boot_vga
-rw-r--r-- 1 root root 4096 Jan 28 15:58 broken_parity_status
-r--r--r-- 1 root root 4096 Jan 28 15:58 class
-rw-r--r-- 1 root root 4096 Jan 28 15:58 config
-r--r--r-- 1 root root 4096 Jan 28 15:58 consistent_dma_mask_bits
-r--r--r-- 1 root root 4096 Jan 28 15:58 current_link_speed
-r--r--r-- 1 root root 4096 Jan 28 15:58 current_link_width
-rw-r--r-- 1 root root 4096 Jan 28 15:58 d3cold_allowed
-r--r--r-- 1 root root 4096 Jan 28 15:58 device
-r--r--r-- 1 root root 4096 Jan 28 15:58 dma_mask_bits
lrwxrwxrwx 1 root root 0 Jan 28 15:58 driver ->
../../../bus/pci/drivers/i915
-rw-r--r-- 1 root root 4096 Jan 28 15:58 driver_override
drwxr-xr-x 4 root root 0 Jan 28 15:58 drm
-rw-r--r-- 1 root root 4096 Jan 28 15:58 enable
lrwxrwxrwx 1 root root 0 Jan 28 15:58 firmware_node ->
../../LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00
drwxr-xr-x 3 root root 0 Jan 28 15:58 graphics
-r-------- 1 root root 2101304 Jan 28 15:58 gvt_firmware
drwxr-xr-x 4 root root 0 Jan 28 15:58 i2c-0
drwxr-xr-x 4 root root 0 Jan 28 15:58 i2c-1
drwxr-xr-x 4 root root 0 Jan 28 15:58 i2c-2
-r--r--r-- 1 root root 4096 Jan 28 15:58 index
-r--r--r-- 1 root root 4096 Jan 28 15:58 irq
-r--r--r-- 1 root root 4096 Jan 28 15:58 label
-r--r--r-- 1 root root 4096 Jan 28 15:58 local_cpulist
-r--r--r-- 1 root root 4096 Jan 28 15:58 local_cpus
-r--r--r-- 1 root root 4096 Jan 28 15:58 max_link_speed
-r--r--r-- 1 root root 4096 Jan 28 15:58 max_link_width
-r--r--r-- 1 root root 4096 Jan 28 15:58 modalias
-rw-r--r-- 1 root root 4096 Jan 28 15:58 msi_bus
drwxr-xr-x 2 root root 0 Jan 28 15:58 msi_irqs
drwxr-xr-x 2 root root 0 Jan 28 15:58 power
--w--w---- 1 root root 4096 Jan 28 15:58 remove
--w------- 1 root root 4096 Jan 28 15:58 rescan
--w------- 1 root root 4096 Jan 28 15:58 reset
-r--r--r-- 1 root root 4096 Jan 28 15:58 resource
-rw------- 1 root root 16777216 Jan 28 15:58 resource0
-rw------- 1 root root 268435456 Jan 28 15:58 resource2
-rw------- 1 root root 268435456 Jan 28 15:58 resource2_wc
-rw------- 1 root root 64 Jan 28 15:58 resource4
-r--r--r-- 1 root root 4096 Jan 28 15:58 revision
-rw------- 1 root root 131072 Jan 28 15:58 rom
lrwxrwxrwx 1 root root 0 Jan 28 15:58 subsystem -> ../../../bus/pci
-r--r--r-- 1 root root 4096 Jan 28 15:58 subsystem_device
-r--r--r-- 1 root root 4096 Jan 28 15:58 subsystem_vendor
-rw-r--r-- 1 root root 4096 Jan 28 15:58 uevent
-r--r--r-- 1 root root 4096 Jan 28 15:58 vendor

So, do I miss anything?