RISC-V Adds Support For CD-ROM Images To Its Default Linux 6.1 Kernel Configuration

Written by Michael Larabel in RISC-V on 12 October 2022 at 04:57 AM EDT. 8 Comments
RISC-V --
Not that you are likely to connect a CD/DVD drive to a RISC-V system in 2022+, but RISC-V's default kernel configuration with the upcoming Linux 6.1 kernel is adding support for CD-ROM file-systems.

In particular, the RISC-V default kernel configuration has flipped on ISO9660, Joliet, and ZISOFS file-system support. The intent here is not so much about rocking CD drives with a RISC-V system but that some installer media may still be distributed as one of these file-system images. Some use-cases may also involve having archived images in such formats.

The file-system drivers already build fine on RISC-V and this change is just about enabling the the default configuration "defconfig" for ISO960 / Joliet / ZISOFS.

For RISC-V with Linux 6.1 the feature pull also enabled transparent huge-pages swap (TH_SWAP) for RISC-V 64-bit systems, the default NR_CPUS capacity has increased to 512, and there are improvements to RISC-V's CPU topology subsystem. The latter should now ensure RISC-V reports correct CPU topology information in more configurations.

See this pull request that already was mainlined with the RISC-V changes introduced for the Linux 6.1 merge window.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

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