There is something like this for QEMU on Linux hosts. It's called "Inter VM SHared MEMory" (IVSHMEM) [1]. Hyper-V has something akin to this that they call "Hy

There is something like this for QEMU on Linux hosts. It's called "Inter VM SHared MEMory" (IVSHMEM) [1]. Hyper-V has something akin to this that they call "Hyper-V sockets" [2]. But it seems it only works between guest and host. [1] https://www.qemu.org/docs/master/system/devices/ivshmem.html https://www.qemu.org/docs/master/system/devices/ivshmem.html [2] https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/make-integration-service https://learn.microsoft.com/en-us/virtualization/hyper-v-on-...