On Mon, 23 Jan 2023 at 10:27, WANG Xuerui <i.q...@xen0n.name> wrote: > > From: WANG Xuerui <g...@xen0n.name> > > This patch adds a "loongarch64ow-linux-user" target and a > corresponding "qemu-loongarch64ow" binary, for supporting user-mode > emulation of old-world LoongArch applications in the wild. > > Although the old-world LoongArch is already being (slowly) phased out, > there are already a number of deployments (mainly as a result of > LoongArch's early commercial growth), whose migration path is something > software developers have to care about. Support for user-mode emulation > in addition to system-level emulation would help development of such > migration & compatibility solutions.
Is this 'old-world' ABI supported by the upstream Linux kernel? I can't see signs of it from a quick grep. If it isn't, then I'm not sure if we should support it in QEMU user-mode emulation. We've always set "upstream Linux" as our definition of what the official ABI and featureset is for usermode emulation. thanks -- PMM
