On 9/16/20 11:49 AM, Huacai Chen wrote: >>> We now already have a full functional Linux kernel (based on Linux-5.4.x >>> LTS, the kvm host side and guest side have both been upstream for Linux- >>> 5.9, but Linux-5.9 has not been released yet) here: >>> >>> https://github.com/chenhuacai/linux >>> >>> Of course the upstream kernel is also usable (though it is "unstable" >>> now): >>> >>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >>> >>> How to use QEMU/Loongson-3? >>> 1, Download kernel source from the above URL; >>> 2, Build a kernel with arch/mips/configs/loongson3_defconfig; >>> 3, Boot a Loongson-3A4000 host with this kernel (for KVM mode); >>> 4, Build QEMU-master with this patchset; >> >> Which produces all the following errors: >> >> hw/mips/loongson3_virt.c: In function 'get_cpu_freq': >> hw/mips/loongson3_virt.c:372:12: error: variable 'freq_reg' has >> initializer but incomplete type >> struct kvm_one_reg freq_reg = { >> ^ >> hw/mips/loongson3_virt.c:373:9: error: unknown field 'id' specified in >> initializer >> .id = KVM_REG_MIPS_COUNT_HZ, >> ^ >> hw/mips/loongson3_virt.c:373:15: error: 'KVM_REG_MIPS_COUNT_HZ' >> undeclared (first use in this function) >> .id = KVM_REG_MIPS_COUNT_HZ, >> ^ > I don't know how to reproduce these errors, struct kvm_one_reg and > KVM_REG_MIPS_COUNT_HZ are both defined..., could you please tell me? > My build steps are like this: > mkdir build > cd build > ../configure > make
Building on Ubuntu 20.04. C compiler for the host machine: cc (gcc 9.3.0 "cc (Ubuntu 9.3.0-10ubuntu2) 9.3.0") C linker for the host machine: cc ld.bfd 2.34