RISC-V With Linux 5.19 Allows Running RV32 32-bit Binaries On RV64, Adds Svpbmt

[phoronix]

Phoronix: RISC-V With Linux 5.19 Allows Running RV32 32-bit Binaries On RV64, Adds Svpbmt

On Tuesday the RISC-V architecture changes were merged into the in-development Linux 5.19 kernel with several new features in tow...

https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.19-RISC-V

[Developer12]

this has already been reported

[Vistaus]

this has already been reported

What do you mean?

[skeevy420]

This RV32 on RV64 support is interesting since the Linux kernel has always catered to 64-bit RISC-V and not much in the way of modern RV32 usage I am aware of at least where someone would be chasing mainline Linux usage.

????

A period is missing between usage and I as well as "one use-case" should be added between least and where.

My Mom's in the hospital and this is a helpful distraction for me.

[erniv2]

Basically this is the risc-v version of x86 on x64, or wow64 if you use windows.

[nanonyme]

Something to consider is *if* riscv builders ever become a real thing and distros start building binaries, this will make it much simpler to build riscv32 binaries on riscv64 builders.

[Developer12]

What do you mean?

this exact article was already published recently

[Vistaus]

this exact article was already published recently

Link?

[Developer12]

Link?

https://www.phoronix.com/scan.php?page=news_item&px=RISC-V-Linux-5.19

My same criticism applies here as there:

Not only are they dealing with fragmentation due to manufacturers not matching the spec, but they're also introducing their own "let's support 32-bit binaries forever" headache. This really is the ISA run by downstream/closed-source industry interests.

[Vistaus]

https://www.phoronix.com/scan.php?pa...C-V-Linux-5.19

That article was about a proposed merge request. This article is about the merge request being merged. There's a difference.