maobibo <maob...@loongson.cn> writes:
> 在 2021年06月29日 21:42, Peter Maydell 写道: >> On Mon, 28 Jun 2021 at 13:05, Song Gao <gaos...@loongson.cn> wrote: >>> >>> Add files to linux-user/loongarch64 >>> Add file to default-configs >>> Add loongarch to target/meson.build >>> >>> Signed-off-by: Song Gao <gaos...@loongson.cn> >>> --- >>> MAINTAINERS | 1 + >>> default-configs/targets/loongarch64-linux-user.mak | 4 + >>> include/elf.h | 2 + >>> linux-user/elfload.c | 58 ++++ >>> linux-user/loongarch64/cpu_loop.c | 177 ++++++++++++ >>> linux-user/loongarch64/signal.c | 193 +++++++++++++ >>> linux-user/loongarch64/sockbits.h | 1 + >>> linux-user/loongarch64/syscall_nr.h | 307 >>> +++++++++++++++++++++ >>> linux-user/loongarch64/target_cpu.h | 36 +++ >>> linux-user/loongarch64/target_elf.h | 14 + >>> linux-user/loongarch64/target_fcntl.h | 12 + >>> linux-user/loongarch64/target_signal.h | 28 ++ >>> linux-user/loongarch64/target_structs.h | 49 ++++ >>> linux-user/loongarch64/target_syscall.h | 46 +++ >>> linux-user/loongarch64/termbits.h | 229 +++++++++++++++ >>> linux-user/syscall_defs.h | 8 +- >>> meson.build | 2 +- >>> qapi/machine-target.json | 4 +- >>> target/loongarch/meson.build | 19 ++ >>> target/meson.build | 1 + >>> 20 files changed, 1185 insertions(+), 6 deletions(-) >> >> This is a massive patch that would benefit from being split up >> into multiple smaller patches. >> >> I'm told by a kernel developer that loongarch hasn't yet been >> accepted into the Linux kernel mainline. Until it has been, the >> syscall ABI for it is not yet stable, so we won't be able to take >> the linux-user patches for it yet. (We have been burned in the >> past by taking linux-user architecture support patches without >> realizing they weren't for a stable ABI, and then being out of >> sync with the eventual upstream kernel ABI that was accepted.) >> >> We can certainly do code review in the meantime, though. > Thanks for reviewing the big series patches. It is understandable that > there should be linux kernel merged for one new architecture support > firstly, and then there will be linux-user simulator later. > > We are planning to submit patch to linux kernel for LoongArch support, > there is the link: > https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git/log/?h=loongarch-next > > And we will continueto submit softmmu support for LoongArch. And is there > any extra requirements for softmmu simulation for new architecture, > such as gcc/binutils/bios? Ideally if there are some pre-built toolchains either as part of a distro (we've used Debian Sid before for some) or easily to install in a docker container as binary tarballs (like we do for tricore) then we can enable basic check-tcg functionality. Going forward having stable URLs for test images of distros means we can also enable check-acceptance tests. > > regards > bibo, mao > > >> >> thanks >> -- PMM >> -- Alex Bennée
