This patch series introduces support for the MIPS64r6 target in QEMU, bringing the latest architecture features and improvements to the MIPS target. In addition to the new target, this series also includes several bug fixes that have been in use internally for years within the MIPS ecosystem. These patches are cherry-picked from the branch mips_rel/4_1_0/master on the MIPS' repository: https://github.com/MIPS/gnutools-qemu/ Further details on individual changes are included in the respective patches. An instance of a pipeline of QEMU CI jobs run with input variable QEMU_CI=1 for this patch series is available here: https://gitlab.com/rakicaleksandar1999/qemu/-/pipelines/1470628690 and for the master branch is available here: https://gitlab.com/rakicaleksandar1999/qemu/-/pipelines/1462140373
