Re: [PATCH 5/5] LoongArch: Add pv ipi support on LoongArch system

: 610a9b8f49fbcf1100716370d3b5f6f884a2835a patch link: https://lore.kernel.org/r/20240103071615.3422264-6-maobibo%40loongson.cn patch subject: [PATCH 5/5] LoongArch: Add pv ipi support on LoongArch system config: loongarch-randconfig-r061-20240109 (https://download.01.org/0day-ci/archive/20240109/202401091354

[PATCH 5/5] LoongArch: Add pv ipi support on LoongArch system

On LoongArch system, ipi hw uses iocsr registers, there is one iocsr register access on ipi sender and two iocsr access on ipi interrupt handler. On VM mode all iocsr registers accessing will trap into hypervisor. This patch adds pv ipi support for VM, hypercall instruction is used to ipi sender,