diff options
| author | Xiaojuan Yang <yangxiaojuan@loongson.cn> | 2022-06-06 20:43:08 +0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2022-06-06 18:09:03 +0000 |
| commit | d88b51dc26c0e29d012f52d0215ebef29329ca87 (patch) | |
| tree | 58df1eb4984e387fbde8e54868481898b86b7d60 /target/loongarch | |
| parent | 14f2b0b74188582c6f016f8659b24baa340d765a (diff) | |
target/loongarch: Add system emulation introduction
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220606124333.2060567-19-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/loongarch')
| -rw-r--r-- | target/loongarch/README | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/target/loongarch/README b/target/loongarch/README index de141c1a58..4dcd0f1682 100644 --- a/target/loongarch/README +++ b/target/loongarch/README @@ -8,3 +8,57 @@ We can get the latest loongarch documents at https://github.com/loongson/LoongArch-Documentation/tags. + +- System emulation + + Mainly emulate a virt 3A5000 board and ls7a bridge that is not exactly the same as the host. + 3A5000 support multiple interrupt cascading while here we just emulate the extioi interrupt + cascading. LS7A1000 host bridge support multiple devices, such as sata, gmac, uart, rtc + and so on. But we just realize the rtc. Others use the qemu common devices. It does not affect + the general use. We also introduced the emulation of devices at docs/system/loongarch/loongson3.rst. + + This version only supports running binary files in ELF format, and does not depend on BIOS and kernel file. + You can compile the test program with 'make & make check-tcg' and run the test case with the following command: + + 1. Install LoongArch cross-tools on X86 machines. + + Download cross-tools. + + wget https://github.com/loongson/build-tools/releases/latest/download/loongarch64-clfs-20211202-cross-tools.tar.xz + + tar -vxf loongarch64-clfs-20211202-cross-tools.tar.xz -C /opt + + Config cross-tools env. + + . setenv.sh + + setenv.sh: + + #!/bin/sh + set -x + CC_PREFIX=/opt/cross-tools + + export PATH=$CC_PREFIX/bin:$PATH + export LD_LIBRARY_PATH=$CC_PREFIX/lib:$LD_LIBRARY_PATH + export LD_LIBRARY_PATH=$CC_PREFIX/loongarch64-unknown-linux-gnu/lib/:$LD_LIBRARY_PATH + set +x + + 2. Test tests/tcg/multiarch. + + ./configure --disable-rdma --disable-pvrdma --prefix=/usr \ + --target-list="loongarch64-softmmu" \ + --disable-libiscsi --disable-libnfs --disable-libpmem \ + --disable-glusterfs --enable-libusb --enable-usb-redir \ + --disable-opengl --disable-xen --enable-spice --disable-werror \ + --enable-debug --disable-capstone --disable-kvm --enable-profiler + + cd build/ + + make && make check-tcg + + or + + ./build/qemu-system-loongarch64 -machine virt -m 4G -cpu Loongson-3A5000 -smp 1 -kernel build/tests/tcg/loongarch64-softmmu/hello -monitor none -display none -chardev file,path=hello.out,id=output -serial chardev:output + +- Note. + We can get the latest LoongArch documents or LoongArch tools at https://github.com/loongson/ |