msm8916-mainline / qhypstub Goto Github PK

I have a msm8953 device and I want to enable KVM on it.I have a kernel with KVM module builded.But I have not finished lk1st build,the drive have some bug.

https://extrowerk.com/2022/07/31/OpenStick/

I'm tempted to go dig mine out, see if it's a SD410 and see if this works...

Hello.

Found this project and it looks very interesting. Is there any plan to look into PSCI/HVC for the purposes of

• SMP boot
• Runtime LPM wrappering

Understood lk2nd already does spin-table SMP boot. A project I am involved with is interested in PSCI for 8916/8936/8939.

If you have plans to do it or some way for us to collaborate on it ?

Found some MSM8916 devices shipped with trustzone firmware running entirely in AArch32 mode (both EL3 and Secure EL1)

$readelf -a tz.elf
ELF Header:
Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: EXEC (Executable file)
Machine: ARM
Version: 0x1
Entry point address: 0x86500000
Start of program headers: 52 (bytes into file)
Start of section headers: 0 (bytes into file)
Flags: 0x5000002, Version5 EABI,
Size of this header: 52 (bytes)
Size of program headers: 32 (bytes)
Number of program headers: 10
Size of section headers: 40 (bytes)
Number of section headers: 0
Section header string table index: 0

There are two possible reasons for this. One is that QC switched to pure-AA32 TZBSP on LA at some point.
Another is devices under Tested devices are actually using WP firmware, which has AA64 TZ(EL3-only) and HYP.

According to ARMv8-A spec, if EL3 runs in AArch32, then all lower ELs have to run under AA32 as well.
Therefore, devices with these TZ firmwares, when flashed with qhypstub, won't boot anymore.

Possible solutions:

1. Flash a (WP?)TZ with an AArch64 EL3. (Afaik, QC SBL1 has support for automatically switching to 64 when the ELF is 64).
2. Redo everything EL2 and EL1(0) in AArch32 instead. Since Mainline has stopped supporting AArch32 KVM host, it'll be a dead end.

Msm 8937 && sdm 865 ..
My bad.. i already enabled KVM but not get success 😞
Please help

Anyone see my pull requests?

Hi stephan, sorry to bother again. I've bought a Redmi2 to install PostmarketOS, but found out that the msm8916 SoC didn't support GICv3. I'm wondering if the msm8939 support for GICv3. All I want is to run GICv3 VMs on those old Android phones.

Thanks a lot.

@stephan-gh

Hi, I'm interested in trying to port qhypstub to msm8953 for my old phone Xiaomi Redmi 6 Pro. But I don't know how the find the two addresses mentioned in README . Would someone be so kind to tell me that if there are any documents available？

Thanks a lot!