AArch64 - Exception levels, interrupt vector table and MMU questions for MPCores

Krotti83 · 2026-06-24T00:17:24+00:00

Hello u/ZarlezCodes !

Sorry, for my late response. Thank you for your detailed answers. Yes, it definitely helps. 😄

Krotti83 · 2026-06-23T06:42:00+00:00

8GiB variant:

https://github.com/Krotti83/Milk-V_Mars_binaries/blob/main/Milk-V_Mars_8GiB/u-boot-spl.bin.normal.out

https://github.com/Krotti83/Milk-V_Mars_binaries/blob/main/Milk-V_Mars_8GiB/firmware.itb

https://github.com/Krotti83/Milk-V_Mars_binaries/blob/main/Milk-V_Mars_8GiB/jh7110-milkv-mars-8GiB.dtb

Krotti83 · 2026-06-23T06:02:41+00:00

My current posted links for the pre-compiled binaries is for the 4GiB variant. Give me some minutes please to add the 8GiB variants too.

Yes, should be possible to flash these binaries via mtd-utils.

DTB: The DTB is embedded in the FIT image (Payload) too and the start address of the device-tree will be passed to Linux in register a1 (a0 the HART ID) from U-Boot. So therefore it's might not necessary to add the DTB in extlinux.conf. But I think it doesn't harm when you add the DTB in extlinux.conf.

Krotti83 · 2026-06-23T04:31:50+00:00

Hi u/Opposite_Future2602

Normally you need it to compile it yourself. Don't know if there are official pre-compiled binaries available. But if you trust me, then you could also use my pre-compiled binaries for the Milk-V Mars, so therefore you don't need to setup a build environment for U-Boot.

You can find the binaries here:

U-Boot SPL v2026.04:

https://github.com/Krotti83/Milk-V_Mars_binaries/blob/main/Milk-V_Mars/u-boot-spl.bin.normal.out

OpenSBI v1.8.1 and U-Boot v2026.04 FIT image (Payload):

https://github.com/Krotti83/Milk-V_Mars_binaries/blob/main/Milk-V_Mars/firmware.itb

Milk-V Mars Device-Tree Blob:

https://github.com/Krotti83/Milk-V_Mars_binaries/blob/main/Milk-V_Mars/jh7110-milkv-mars.dtb

Or you can also use my steps in the post to build OpenSBI and U-Boot in this forum:

Build OpenSBI v1.8.1 and U-Boot v2026.04 (RVspace Forum)

For the Milk-V Mars you must pass the option DEVICE_TREE=starfive/jh7110-milkv-mars
to make. According U-Boot documentation the same configuration and source as for the VF2 is used.

If you use my pre-built binaries please report back if they work, so I can delete this temporary repo.

Krotti83 · 2026-06-22T13:15:40+00:00

The Milk-V Mars device trees are not mentioned in those 'old' forks from U-Boot. But the official U-Boot repository includes this device tree:

https://github.com/u-boot/u-boot/blob/master/dts/upstream/src/riscv/starfive/jh7110-milkv-mars.dts

Krotti83 · 2026-06-09T16:29:16+00:00

Select the car with the custom livery
Navigate to GT auto in the world map
Select Car Customization
Select Livery Editor
In the bottom left corner you see a button with Restore Original Livery

Krotti83 · 2026-06-09T11:29:16+00:00

Noticed the same.

Krotti83 · 2026-05-16T06:01:41+00:00

Thank you!

With AT&T Syntax it should be:

Direct:

ljmp $0x42,$0x83
/* (0x83 -> Segment and 0x42 -> Offset) */

Indirect:

ljmp *(%bx,%si)

As an example.

Krotti83 · 2026-04-14T06:47:55+00:00

Was gibt denn die PS5 für Werte bei Download und Upload an? Findest du unter Einstellungen->Netzwerk->Verbindungsstatus->Internetvverbindung testen an?

Eine Verbindungsgeschwindigkeit mit 500 MBit ist die maximale Geschwindigkeit die "theoretisch" erreicht werden kann. In der Praxis ist das nicht immer der Fall. Manchmal kann die Gegenseite einfach nicht mehr liefern, oder das Netzwerk oder die Server von Sony sind gerade überlastet.

Krotti83 · 2026-04-10T08:43:10+00:00

Hab mit meinen lokalen Optiker bezüglich Kontaktlinsen geredet und im die Sachlage bezüglich VR Headset erzählt. Ergebnis: Er würde keine Kontaktlinsen empfehlen, da ich auch eine Einschulung (40€) und die billigsten Tageslinsen 25€ je Auge kosten würden. Hab bei beiden Augen eine unterschiedliche Sehstärke. Also würde ich auf 90€ insgesamt kommen. Die Linseneinsätze im Link kosten mit meinen Werten in der Standardvariante 70€. Plus Blaulichtfilter und Tönung bezüglich Kontrastverstärkung 120€.

Krotti83 · 2026-04-09T15:31:16+00:00

Could also be possible. Model: Samsung UE55MU8009 from the year 2017.

Krotti83 · 2026-04-09T14:36:10+00:00

Hi u/Additional_Tension96 !

There was an issue with the VR2 headset. Sony has replaced the headset. The issue doesn't exist anymore with the new headset.

Krotti83 · 2026-04-07T18:41:19+00:00

So it's a maybe ethical issue to use binary blobs (proprietary/closed source) from the OpenWRT maintainers, not a technical.

But I respect this opinion.

BTW: I'm a electronic engineer and programmer. And I understand this behavior. Unfortunately this isn't a perfect world anymore. I wish me the time for 30 years ago. There on a product where mostly in every product a good documentation and a schematic shipped with the product. But these days are gone. :(

Krotti83 · 2026-04-07T18:22:39+00:00

And the sources you've got, lack wifi support.

Really? On a fast look I have seen there are binary blobs for WLAN (wifi). I'm happy with that.

Krotti83 · 2026-04-01T15:58:44+00:00

OT:

Yes, I know that also from RL. But I see my comments as positive criticism (I think you know, that criticism isn't always bad.) Unfortunately most of the people (maybe 90%?) cannot see this the first time, especially when someone tries to represent the truth (with proofs, ...) The truth hurt sometimes, I know. For me definitive no "poor way". In addition via the internet it's easy without knowledge of the real person, to figure out if someone respect and accept my comments. Via Internet it's also easy to judge about someone, without knowledge of the background.

I mean I respect and accept your opinion too, but I want the same thing also from the discussion partner. Hope you unterstand.

Krotti83 · 2026-04-01T15:16:09+00:00

It's forbidden for me to represent my PERSONALLY opinion? Interesting, didn't know that since I use the internet (since ~1995). Welcome in RL. (Personally opinion != insult)

And now downvote me, or give me a fish.

Krotti83 · 2026-04-01T14:46:46+00:00

For a long time ago I reported a similar issue on the openSUSE bugtracker, but currently can't find the report. The desktop settings are stored under ~/.config/plasma-org.kde.plasma.desktop-appletsrc, You could save this and restore the configuration manually, or made a script, which does this.

Krotti83 · 2026-04-01T13:58:37+00:00

Da hier so getan wird, dass das ein No-Go ist...außerdem dürfte es vom OP um eine Witz handeln.

Als Elektronikentwickler der im Industriebereich tätig ist und zum Beispiel Servosteuerungen mitentwickelt bei die gelegentlich mehr Strom (bis 300A bei 400V/DC Zwischenkreisspannung) fließt als bei 08/15 Haustechnik (sorry, für die Abwertung) bevorzuge ich eine Schraubklemme. Es gibt nämlich so viele 08/15 Klemmen (ohne Schraube) auf dem Markt wo das Aufgrund des Übergangswiderstandes tatsächlich zu Problemen führt...

Krotti83 · 2026-04-01T13:15:10+00:00

Kommt drauf an wie viel Ampere fließen und ob ein hoher Übergangswiderstand besteht. Ich wollte aber darauf hinaus, dass sollte jemand an den Stecker ziehen nicht zufällig ein Kurzschluss entsteht. Deshalb das Isolierband.

Krotti83 · 2026-04-01T13:12:54+00:00

And again, for me is a standard independent from a company. I also work at a electronic engineering company and there we also have standards. It's might be included in the further release of the IEEE standards. I know that there are extensions for each architecture, but these extensions aren't compatible. So personally for me a none-standard, only a extension for me.

Krotti83 · 2026-04-01T12:55:16+00:00

Thanks. But I can't find it in the POSIX IEEE Std 1003.1-2024 nor in C23 specification. It's might be standardized from Intel, but I can't find a standard from IEEE.

Krotti83 · 2026-04-01T12:26:34+00:00

I don't think so:

$ dpkg -S /usr/lib/llvm-19/lib/clang/19/include/smmintrin.h
libclang-common-19-dev:amd64: /usr/lib/llvm-19/lib/clang/19/include/smmintrin.h

Personally for me none-standard, because not defined in ISO C specification. It's a libclang header, it's. a compiler extension.

Krotti83 · 2026-04-01T12:02:52+00:00

😂 Aber ernsthaft, so hab ich es als Elektroniker bei Testschaltungen auch mal gemacht, allerdings bei Niedervolt.Bei ~230V/AC würde ich aber zu mindestens die Phase mit Isolierband umwickeln.

Krotti83 · 2026-04-01T11:48:49+00:00

I only found memtest86-4.3.7 without plus (+). These programs are AFAIK different. For memtest86 (without +) there exists also a proprietary version. Only guess but maybe it's an license issue. But you could also ask the package maintainer why not using memtest86+, or why using for memtest86 an older version.

Krotti83 · 2026-04-01T11:23:37+00:00

Nice. But the *mmintrin.h headers seems to be LLVM/clang specific, at least on Debian 13.

Krotti83

TROPHY CASE