Patches for rvvm on SerenityOS

0001-Disable-threaded-IO-on-Serenity.patch

Disable threaded IO on Serenity

Due to sloppy scheduler/threading behavior on Serenity, threaded IO is disabled in this port for now. Otherwise U-Boot randomly fails to read data from NVMe, or fails to initialize NVMe altogether, along with other IO issues in guests - all due to threaded tasks being randomly delayed for very long.

I am not an expert on how scheduler works in Serenity, so I am unable to fix it yet. This problem was also visible in previous v0.5 version of this port, but back then I thought it's some kind of a temporary problem. Couldn't reproduce this on any other host OS.

0002-riscv_csr-Fix-dispatch-restarting.patch

riscv_csr: Fix dispatch restarting

• Properly check the old value of status CSR to determine if new IRQ bits were set
• Fix build warn with precise FSTATUS