英雄帖: rust-vmm ecosystem support for LoongArch

[xen0n]

There are already some solid LoongArch server models in the wild, and it can be very beneficial to have lightweight VM solutions working on LoongArch too. Many of these are now based on the collaborative rust-vmm project, which needs to gain LoongArch support.

There is already work undergoing, but it's lacking a downstream use case so gets postponed:

• Add basic support for loongarch64 architecture rust-vmm/kvm#307

We should first file issues on downstream projects, to establish the necessity of LoongArch support in the infra packages:

• https://github.com/firecracker-microvm/firecracker
  • related: feature request for RISC-V
• https://github.com/cloud-hypervisor/cloud-hypervisor

Then we should probably restart the porting work all over again, as the original PR seems overly focused on build fix only; we could bump the KVM binding target version to Linux 6.14 while at it, for example.

[xen0n]

Some more RISC-V material that we can take inspiration from:

• RISC-V Stage 2 RoadMap cloud-hypervisor/cloud-hypervisor#6978