Hi, This series adds riscv64 kvm support, It is based on riscv_kvm_master branch at https://github.com/kvm-riscv/linux.
This series depends on above pending changes which haven't yet been accepted, so this QEMU patch series is blocked until that dependency has been dealt with, but is worth reviewing anyway. Several steps to use this: 1. Build riscv64 emulation $ ./configure --target-list=riscv64-softmmu $ make -j$(nproc) 2. Build kernel riscv_kvm_master branch at https://github.com/kvm-riscv/linux 3. Build QEMU VM I cross build in riscv toolchain $ PKG_CONFIG_LIBDIR=<toolchain pkgconfig path> $ export PKG_CONFIG_SYSROOT_DIR=<toolchain sysroot path> $ ./configure --target-list=riscv64-softmmu --enable-kvm \ --cross-prefix=riscv64-linux-gnu- --disable-libiscsi --disable-glusterfs \ --disable-libusb --disable-usb-redir --audio-drv-list= --disable-opengl \ --disable-libxml2 4. Start riscv64 emulation $ ./qemu-system-riscv64 -M virt -m 4096M -cpu rv64,x-h=true -nographic \ -name guest=riscv-hyp,debug-threads=on \ -smp 4 \ -kernel ./fw_jump.elf \ -device loader,file=./Image,addr=0x80200000 \ -drive file=./hyp.img,format=raw,id=hd0 \ -device virtio-blk-device,drive=hd0 \ -append "root=/dev/vda rw console=ttyS0 earlycon=sbi" 5. Start kvm-acceled QEMU VM in riscv64 emulation $ ./qemu-system-riscv64 -M virt,accel=kvm -m 1024M -cpu host -nographic \ -name guest=riscv-guset \ -smp 2 \ -kernel ./Image \ -drive file=./guest.img,format=raw,id=hd0 \ -device virtio-blk-device,drive=hd0 \ -append "root=/dev/vda rw console=ttyS0 earlycon=sbi" Yifei Jiang (9): linux-header: Update linux/kvm.h target/riscv: Add target/riscv/kvm.c to place the public kvm interface target/riscv: Implement function kvm_arch_init_vcpu target/riscv: Implement kvm_arch_get_registers target/riscv: Implement kvm_arch_put_registers target/riscv: Support start kernel directly by KVM hw/riscv: PLIC update external interrupt by KVM when kvm enabled target/riscv: Handler KVM_EXIT_RISCV_SBI exit target/riscv: add host riscv64 cpu type configure | 1 + hw/riscv/sifive_plic.c | 31 ++- hw/riscv/virt.c | 15 +- linux-headers/linux/kvm.h | 8 + target/riscv/Makefile.objs | 1 + target/riscv/cpu.c | 9 + target/riscv/cpu.h | 4 + target/riscv/kvm.c | 513 +++++++++++++++++++++++++++++++++++++ target/riscv/kvm_riscv.h | 25 ++ 9 files changed, 596 insertions(+), 11 deletions(-) create mode 100644 target/riscv/kvm.c create mode 100644 target/riscv/kvm_riscv.h -- 2.19.1
