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* [PATCH RFC v2 0/9] Add riscv kvm accel support
@ 2020-04-11  4:14 Yifei Jiang
  2020-04-11  4:14 ` [PATCH RFC v2 1/9] linux-header: Update linux/kvm.h Yifei Jiang
                   ` (9 more replies)
  0 siblings, 10 replies; 12+ messages in thread
From: Yifei Jiang @ 2020-04-11  4:14 UTC (permalink / raw)
  To: qemu-devel, qemu-riscv
  Cc: victor.zhangxiaofeng, zhang.zhanghailiang, sagark, yinyipeng1,
	kbastian, anup.patel, Alistair.Francis, kvm-riscv, palmer,
	Yifei Jiang, dengkai1

This series adds both riscv32 and 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 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 built 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
$ make -j$(nproc)

4. Start 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 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"

Changes since RFC v1
1、Add separate SBI ecall interface header.
2、Add riscv32 kvm accel support.

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 cpu type

 configure                          |   1 +
 hw/riscv/sifive_plic.c             |  31 +-
 hw/riscv/virt.c                    |  16 +-
 linux-headers/linux/kvm.h          |   8 +
 target/riscv/Makefile.objs         |   1 +
 target/riscv/cpu.c                 |  10 +
 target/riscv/cpu.h                 |   4 +
 target/riscv/kvm.c                 | 501 +++++++++++++++++++++++++++++
 target/riscv/kvm_riscv.h           |  25 ++
 target/riscv/sbi_ecall_interface.h |  72 +++++
 10 files changed, 657 insertions(+), 12 deletions(-)
 create mode 100644 target/riscv/kvm.c
 create mode 100644 target/riscv/kvm_riscv.h
 create mode 100644 target/riscv/sbi_ecall_interface.h

-- 
2.19.1




^ permalink raw reply	[flat|nested] 12+ messages in thread
end of thread, other threads:[~2020-04-17 22:44 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-04-11  4:14 [PATCH RFC v2 0/9] Add riscv kvm accel support Yifei Jiang
2020-04-11  4:14 ` [PATCH RFC v2 1/9] linux-header: Update linux/kvm.h Yifei Jiang
2020-04-11  4:14 ` [PATCH RFC v2 2/9] target/riscv: Add target/riscv/kvm.c to place the public kvm interface Yifei Jiang
2020-04-17 22:34   ` Alistair Francis
2020-04-11  4:14 ` [PATCH RFC v2 3/9] target/riscv: Implement function kvm_arch_init_vcpu Yifei Jiang
2020-04-11  4:14 ` [PATCH RFC v2 4/9] target/riscv: Implement kvm_arch_get_registers Yifei Jiang
2020-04-11  4:14 ` [PATCH RFC v2 5/9] target/riscv: Implement kvm_arch_put_registers Yifei Jiang
2020-04-11  4:14 ` [PATCH RFC v2 6/9] target/riscv: Support start kernel directly by KVM Yifei Jiang
2020-04-11  4:14 ` [PATCH RFC v2 7/9] hw/riscv: PLIC update external interrupt by KVM when kvm enabled Yifei Jiang
2020-04-11  4:14 ` [PATCH RFC v2 8/9] target/riscv: Handler KVM_EXIT_RISCV_SBI exit Yifei Jiang
2020-04-11  4:14 ` [PATCH RFC v2 9/9] target/riscv: add host cpu type Yifei Jiang
2020-04-11  5:47 ` [PATCH RFC v2 0/9] Add riscv kvm accel support no-reply

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