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We add common helper routines which can be shared by RISC-V multi-socket NUMA machines. We have two types of helpers: 1. riscv_socket_xyz() - These helper assist managing multiple sockets irrespective whether QEMU NUMA is enabled/disabled 2. riscv_numa_xyz() - These helpers assist in providing necessary QEMU machine callbacks for QEMU NUMA emulation Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com> Message-Id: <20200616032229.766089-4-anup.patel@wdc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>