acrn-on-qemu-SMAP-problem

[Simpronic]

Hello, I should run ACRN on QEMU.
I successfully compiled all acrn's sources and installed them.
I can find the kenel image in /boot folder.
But i have a problem in booting arcn and it gives me this message:

error: Can't get controller info..
Non-UEFI environment detected.
Multiboot Bootloader: GRUB 2.04-1ubuntu26.17
detect_hardware_support, SMAP not supported
[0us][cpu=0][(null)][serv=1][seq=1]:PANIC: init_pcpu_pre line 153

[0us][cpu=0][(null)][serv=1][seq=1]:hardware not support!

How can i do ?

I controlled the features of my cpu, but it doesn't seem to support SMAP, so i can't boot ACRN ?

[Simpronic]

UPDATE: I tried to comment the lines that do the checks about SMAP and has worked.
But now i have another problem, when i select ACRN hypervisor in grub, it prints some stuff on screen and then return at selection panel

[Simpronic]

UPDATE: i found in the kernel that i can deactivate SMAP and i deactivated it
But there has been another problem with CLFLUSHOPT, OPcode not in my ISA (i have only CLFLUSH).
I changed all the instruction with CLFLUSHOPT with CLFLUSH but when i booted the kenel i ended up with this:

Loading ACRN hypervisor ...
error: Can't get controller info..
Non-UEFI environment detected.
Multiboot Bootloader: GRUB 2.04-1ubuntu26.17
ACRN Hypervisor
[3326137us][cpu=0][(null)][sev=2][seq=1]:HV version 3.0-2024-03-27 13:15:36-506c87cfa-dirty DBG (daily tag:acrn-2022w27.1-180000p) shared@qemu build by marco, start time 3315718us
[3328095us][cpu=0][(null)][sev=2][seq=2]:API version 1.0
[3328699us][cpu=0][(null)][sev=2][seq=3]:Detect processor: Intel Atom Processor (Denverton)
[3329738us][cpu=0][(null)][sev=1][seq=4]:SECURITY WARNING!!!!!!
[3330427us][cpu=0][(null)][sev=1][seq=5]:Please apply the latest CPU uCode patch!
[3333058us][cpu=0][(null)][sev=2][seq=6]:Assertion failed in file acpi_parser/dmar_parse.c,line 120 : fatal error
[3334229us][cpu=0][(null)][sev=2][seq=7]:
delta = (actual_load_address - CONFIG_HV_RAM_START) = 0x0

[3335265us][cpu=0][(null)][sev=2][seq=8]:
Host Stack: CPU_ID = 0

[3335963us][cpu=0][(null)][sev=2][seq=9]:addr(0x1120bb90) 0x0000000000000000 0x0000000000000013 0x0000000011247f00 0x000000007ffe2b9b

[3337349us][cpu=0][(null)][sev=2][seq=10]:addr(0x1120bbb0) 0x000000001120bc20 0x0000000011012213 0x0000000011055880 0x000000007ffe2c43

[3338733us][cpu=0][(null)][sev=2][seq=11]:addr(0x1120bbd0) 0xffffffff1120bc10 0x0000000011247f80 0x00000000000000fe 0x0000000000000000

[3340151us][cpu=0][(null)][sev=2][seq=12]:addr(0x1120bbf0) 0x00000000000000fc 0x0000000000000000 0x0000000000000000 0x0000000000000000

[3341777us][cpu=0][(null)][sev=2][seq=13]:addr(0x1120bc10) 0x0000000000000000 0x0000000000000000 0x000000001120bc30 0x000000001100d800

[3343522us][cpu=0][(null)][sev=2][seq=14]:addr(0x1120bc30) 0x000000001120bc60 0x0000000011009499 0x0000000000000000 0x0000000000000000

[3345250us][cpu=0][(null)][sev=2][seq=15]:addr(0x1120bc50) 0x0000000000000000 0x0000000000000000 0x000000001120bc80 0x00000000110081e9

[3346503us][cpu=0][(null)][sev=2][seq=16]:addr(0x1120bc70) 0x00000000110010e2 0x0000000000000000 0x0000000011062310 0x00000000696e746c

[3347756us][cpu=0][(null)][sev=2][seq=17]:addr(0x1120bc90) 0x0000000000000000 0x0000000000000000 0x0000000100000000 0x0000000000000000

[3349024us][cpu=0][(null)][sev=2][seq=18]:addr(0x1120bcb0) 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000

[3350635us][cpu=0][(null)][sev=2][seq=19]:addr(0x1120bcd0) 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000

[3352444us][cpu=0][(null)][sev=2][seq=20]:addr(0x1120bcf0) 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000

[3354873us][cpu=0][(null)][sev=2][seq=21]:addr(0x1120bd10) 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000

[3356712us][cpu=0][(null)][sev=2][seq=22]:addr(0x1120bd30) 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000

[3358437us][cpu=0][(null)][sev=2][seq=23]:addr(0x1120bd50) 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000

[3360262us][cpu=0][(null)][sev=2][seq=24]:addr(0x1120bd70) 0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000

[3362053us][cpu=0][(null)][sev=2][seq=25]:

[3362649us][cpu=0][(null)][sev=2][seq=26]:Host Call Trace:

[3363464us][cpu=0][(null)][sev=2][seq=27]:----> 0x0000000011012213

[3364385us][cpu=0][(null)][sev=2][seq=28]:----> 0x000000001100d800

[3365308us][cpu=0][(null)][sev=2][seq=29]:----> 0x0000000011009499

[3366222us][cpu=0][(null)][sev=2][seq=30]:----> 0x00000000110081e9

[3367133us][cpu=0][(null)][sev=2][seq=31]:

and then it freezes

[MingzhenHan]

I also met the same problem with you, have you solved ?

[Simpronic]

No, I commented the assertion line and recompiled the hypervisor code.
When I enter into the grub I choose ACRN hypervisor and it enters in a sort of boot loop returning always in the selection section

[MingzhenHan]

[3330427us][cpu=0][(null)][sev=1][seq=5]:Please apply the latest CPU uCode patch!
What do you think of this msg？
Should we apply the latest CPU microcode patch on guest or host by command
sudo apt install intel-microcode

[Simpronic]

I didn't tried it, so I don't know if it can solve the problems.
If you try, let me know if it does something

[MingzhenHan]

Pity, it doesn't work. What 's your host ubuntu version and Qemu emulator version?

[Simpronic]

My host Ubuntu version is 22.04 LTS and for the ServiceVM I use 20.04 (the one that the official guide use) .
Qemu version is 6.0 (I tried also the latest by compiling the binaries, but that version gave me some problems)

[MingzhenHan]

The same version with me😀.The official guide uses ubuntu 20.04 in host, but I use 22.04. I'm wondering whether it matters.🤔

[Simpronic]

I don't know if it matters.
I was thinking about some features that my CPU doesn't have.
Apart SMAP, my CPU missed also CLFLUSHOPT.
And in my opinion also that assertion is important, but I don't know how to solve or debug this problem