qemu-e2k

History

Bibo Mao 5e90b8db38 hw/loongarch/virt: Set iocsr address space per-board rather than percpu LoongArch system has iocsr address space, most iocsr registers are per-board, however some iocsr register spaces banked for percpu such as ipi mailbox and extioi interrupt status. For banked iocsr space, each cpu has the same iocsr space, but separate data. This patch changes iocsr address space per-board rather percpu, for iocsr registers specified for cpu, MemTxAttrs.requester_id can be parsed for the cpu. With this patches, the total address space on board will be simple, only iocsr address space and system memory, rather than the number of cpu and system memory. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Reviewed-by: Song Gao <gaosong@loongson.cn> Message-Id: <20231215100333.3933632-3-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>		2024-01-11 19:22:47 +08:00
..
kvm	hw/loongarch/virt: Set iocsr address space per-board rather than percpu	2024-01-11 19:22:47 +08:00
tcg	hw/loongarch/virt: Set iocsr address space per-board rather than percpu	2024-01-11 19:22:47 +08:00
cpu-csr.h
cpu-param.h
cpu-qom.h
cpu.c	hw/loongarch/virt: Set iocsr address space per-board rather than percpu	2024-01-11 19:22:47 +08:00
cpu.h	hw/loongarch/virt: Set iocsr address space per-board rather than percpu	2024-01-11 19:22:47 +08:00
disas.c
gdbstub.c
helper.h
insns.decode
internals.h
Kconfig
loongarch-qmp-cmds.c
machine.c
meson.build	target/loongarch: Add loongarch kvm into meson build	2024-01-11 19:22:47 +08:00
README
trace-events
trace.h
translate.h
vec.h

README

- Introduction

LoongArch is the general processor architecture of Loongson.

The following versions of the LoongArch core are supported
core: 3A5000
https://github.com/loongson/LoongArch-Documentation/releases/download/2021.08.17/LoongArch-Vol1-v1.00-EN.pdf

We can get the latest loongarch documents at https://github.com/loongson/LoongArch-Documentation/tags.

- System emulation

You can reference docs/system/loongarch/loongson3.rst to get the information about system emulation of LoongArch.

- Linux-user emulation

We already support Linux user emulation. We can use LoongArch cross-tools to build LoongArch executables on X86 machines,
and We can also use qemu-loongarch64 to run LoongArch executables.

1. Config cross-tools env.

see System emulation.

2. Test tests/tcg/multiarch.

./configure --static --prefix=/usr --disable-werror --target-list="loongarch64-linux-user" --enable-debug

cd build

make && make check-tcg

3. Run LoongArch system basic command with loongarch-clfs-system.

- Config clfs env.

wget https://github.com/loongson/build-tools/releases/download/2022.05.29/loongarch64-clfs-system-5.0.tar.bz2

tar -vxf loongarch64-clfs-system-5.0.tar.bz2 -C /opt/clfs

cp /opt/clfs/lib64/ld-linux-loongarch-lp64d.so.1 /lib64

export LD_LIBRARY_PATH="/opt/clfs/lib64"

- Run LoongArch system basic command.

./qemu-loongarch64 /opt/clfs/usr/bin/bash
./qemu-loongarch64 /opt/clfs/usr/bin/ls
./qemu-loongarch64 /opt/clfs/usr/bin/pwd

- Note.
We can get the latest LoongArch documents or LoongArch tools at https://github.com/loongson/