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KVM RISCV64 on QEMU
Rajnesh Kanwal edited this page Feb 2, 2023
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Currently, we can boot RISC-V 64bit SMP Guest using KVM RISC-V on QEMU. We use QEMU as our development vehicle for RISC-V hypervisor development.
To achieve this, we need following components:
- QEMU with RISC-V Hypervisor Extension Emulation
- Common Host & Guest Kernel
- KVM RISC-V module
- KVMTOOL
- Host RootFS with KVM RISC-V module, KVMTOOL and Guest Kernel
The below sub-sections provide detailed steps to build and run RISC-V KVM on QEMU. All components except QEMU require a RISC-V 64bit cross-compiler so for we use Linux multilib toolchain from RISC-V GNU Compiler Toolchain project (Refer, https://github.com/riscv/riscv-gnu-toolchain). If you have a different RISC-V 64bit cross-compiler then set CROSS_COMPILE environment variable appropriately in steps below.
git clone https://gitlab.com/qemu-project/qemu.git
cd qemu
git submodule init
git submodule update --recursive
./configure --target-list="riscv32-softmmu riscv64-softmmu"
make
cd ..
The above commands will create ./qemu/build/qemu-system-riscv64 which will be our QEMU system emulator.
We can use same RISC-V 64bit Linux kernel as Guest and Host kernel so no need to compile them separately.
git clone https://github.com/kvm-riscv/linux.git
export ARCH=riscv
export CROSS_COMPILE=riscv64-unknown-linux-gnu-
mkdir build-riscv64
make -C linux O=`pwd`/build-riscv64 defconfig
make -C linux O=`pwd`/build-riscv64
The above commands will create:
-
build-riscv64/arch/riscv/boot/Imagewhich will be our Guest and Host kernel -
build-riscv64/arch/riscv/kvm/kvm.kowhich will be our KVM RISC-V module
We need libfdt library in the cross-compile toolchain for compiling KVMTOOL RISC-V (described in next step). The libfdt library is generally not available in the cross-compile toolchain so we need to explicitly compile libfdt from DTC project and add it to CROSS_COMPILE SYSROOT directory.
git clone git://git.kernel.org/pub/scm/utils/dtc/dtc.git
cd dtc
export ARCH=riscv
export CROSS_COMPILE=riscv64-unknown-linux-gnu-
export CC="${CROSS_COMPILE}gcc -mabi=lp64d -march=rv64gc"
TRIPLET=$($CC -dumpmachine)
SYSROOT=$($CC -print-sysroot)
make libfdt
make NO_PYTHON=1 NO_YAML=1 DESTDIR=$SYSROOT PREFIX=/usr LIBDIR=/usr/lib64/lp64d install-lib install-includes
cd ..
The above commands will install cross-compiled libfdt library at $SYSROOT/usr/lib64/lp64d directory of cross-compile toolchain.
git clone https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git
export ARCH=riscv
export CROSS_COMPILE=riscv64-unknown-linux-gnu-
cd kvmtool
make lkvm-static
${CROSS_COMPILE}strip lkvm-static
cd ..
The above commands will create kvmtool/lkvm-static which will be our user-space tool for KVM RISC-V.
export ARCH=riscv
export CROSS_COMPILE=riscv64-unknown-linux-gnu-
git clone https://github.com/kvm-riscv/howto.git
wget https://busybox.net/downloads/busybox-1.33.1.tar.bz2
tar -C . -xvf ./busybox-1.33.1.tar.bz2
mv ./busybox-1.33.1 ./busybox-1.33.1-kvm-riscv64
cp -f ./howto/configs/busybox-1.33.1_defconfig busybox-1.33.1-kvm-riscv64/.config
make -C busybox-1.33.1-kvm-riscv64 oldconfig
make -C busybox-1.33.1-kvm-riscv64 install
mkdir -p busybox-1.33.1-kvm-riscv64/_install/etc/init.d
mkdir -p busybox-1.33.1-kvm-riscv64/_install/dev
mkdir -p busybox-1.33.1-kvm-riscv64/_install/proc
mkdir -p busybox-1.33.1-kvm-riscv64/_install/sys
mkdir -p busybox-1.33.1-kvm-riscv64/_install/apps
ln -sf /sbin/init busybox-1.33.1-kvm-riscv64/_install/init
cp -f ./howto/configs/busybox/fstab busybox-1.33.1-kvm-riscv64/_install/etc/fstab
cp -f ./howto/configs/busybox/rcS busybox-1.33.1-kvm-riscv64/_install/etc/init.d/rcS
cp -f ./howto/configs/busybox/motd busybox-1.33.1-kvm-riscv64/_install/etc/motd
cp -f ./kvmtool/lkvm-static busybox-1.33.1-kvm-riscv64/_install/apps
cp -f ./build-riscv64/arch/riscv/boot/Image busybox-1.33.1-kvm-riscv64/_install/apps
cp -f ./build-riscv64/arch/riscv/kvm/kvm.ko busybox-1.33.1-kvm-riscv64/_install/apps
cd busybox-1.33.1-kvm-riscv64/_install; find ./ | cpio -o -H newc > ../../rootfs_kvm_riscv64.img; cd -
The above commands will create rootfs_kvm_riscv64.img which will be our Host RootFS containing KVMTOOL and Guest Linux.
Run Host Linux with Host RootFS on QEMU
./qemu/build/qemu-system-riscv64 -cpu rv64 -M virt -m 512M -nographic -kernel ./build-riscv64/arch/riscv/boot/Image -initrd ./rootfs_kvm_riscv64.img -append "root=/dev/ram rw console=ttyS0 earlycon=sbi"
Insert the KVM RISC-V module
insmod apps/kvm.ko
Run Guest Linux using KVMTOOL after the KVM RISC-V module is inserted
./apps/lkvm-static run -m 128 -c2 --console serial -p "console=ttyS0 earlycon" -k ./apps/Image --debug
anup@anup-ubuntu64:~/Work/riscv-test/kvm-riscv$ ./qemu/build/qemu-system-riscv64 -cpu rv64 -M virt -m 512M -nographic -kernel ./build-riscv64/arch/riscv/boot/Image -initrd ./rootfs_kvm_riscv64.img -append "root=/dev/ram rw console=ttyS0 earlycon=sbi"
OpenSBI v0.8-6-gec1abf6
____ _____ ____ _____
/ __ \ / ____| _ \_ _|
| | | |_ __ ___ _ __ | (___ | |_) || |
| | | | '_ \ / _ \ '_ \ \___ \| _ < | |
| |__| | |_) | __/ | | |____) | |_) || |_
\____/| .__/ \___|_| |_|_____/|____/_____|
| |
|_|
Platform Name : riscv-virtio,qemu
Platform Features : timer,mfdeleg
Platform HART Count : 1
Boot HART ID : 0
Boot HART ISA : rv64imafdcsuh
BOOT HART Features : pmp,scounteren,mcounteren,time
BOOT HART PMP Count : 16
Firmware Base : 0x80000000
Firmware Size : 92 KB
Runtime SBI Version : 0.2
MIDELEG : 0x0000000000000666
MEDELEG : 0x0000000000f0b509
PMP0 : 0x0000000080000000-0x000000008001ffff (A)
PMP1 : 0x0000000000000000-0xffffffffffffffff (A,R,W,X)
[ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
[ 0.000000] Linux version 5.8.0-rc4-00022-g906eafa224e2 (anup@anup-ubuntu64-vm) (riscv64-unknown-linux-gnu-gcc (GCC) 9.2.0, GNU ld (GNU Binutils) 2.34) #1 SMP Fri Jul 24 19:10:43 IST 2020
[ 0.000000] earlycon: sbi0 at I/O port 0x0 (options '')
[ 0.000000] printk: bootconsole [sbi0] enabled
[ 0.000000] Initial ramdisk at: 0x(____ptrval____) (29944320 bytes)
[ 0.000000] Zone ranges:
[ 0.000000] DMA32 [mem 0x0000000080200000-0x000000009fffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000080200000-0x000000009fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x000000009fffffff]
[ 0.000000] software IO TLB: mapped [mem 0x9b8fa000-0x9f8fa000] (64MB)
[ 0.000000] SBI specification v0.2 detected
[ 0.000000] SBI implementation ID=0x1 Version=0x8
[ 0.000000] SBI v0.2 TIME extension detected
[ 0.000000] SBI v0.2 IPI extension detected
[ 0.000000] SBI v0.2 RFENCE extension detected
[ 0.000000] SBI v0.2 HSM extension detected
[ 0.000000] riscv: ISA extensions acdfhimsu
[ 0.000000] riscv: ELF capabilities acdfim
[ 0.000000] percpu: Embedded 17 pages/cpu s31704 r8192 d29736 u69632
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 128775
[ 0.000000] Kernel command line: root=/dev/ram rw console=ttyS0 earlycon=sbi
[ 0.000000] Dentry cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 6, 262144 bytes, linear)
[ 0.000000] Sorting __ex_table...
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 401932K/522240K available (6456K kernel code, 4177K rwdata, 4096K rodata, 226K init, 323K bss, 120308K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] riscv-intc: 64 local interrupts mapped
[ 0.000000] plic: plic@c000000: mapped 53 interrupts with 1 handlers for 2 contexts.
[ 0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [0]
[ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns
[ 0.001756] sched_clock: 64 bits at 10MHz, resolution 100ns, wraps every 4398046511100ns
[ 0.023824] Console: colour dummy device 80x25
[ 0.027402] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=40000)
[ 0.029636] pid_max: default: 32768 minimum: 301
[ 0.034227] Mount-cache hash table entries: 1024 (order: 1, 8192 bytes, linear)
[ 0.036355] Mountpoint-cache hash table entries: 1024 (order: 1, 8192 bytes, linear)
[ 0.129148] rcu: Hierarchical SRCU implementation.
[ 0.152721] smp: Bringing up secondary CPUs ...
[ 0.153755] smp: Brought up 1 node, 1 CPU
[ 0.175841] devtmpfs: initialized
[ 0.189073] random: get_random_u32 called from bucket_table_alloc.isra.0+0x4e/0x154 with crng_init=0
[ 0.197512] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.200933] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[ 0.220870] NET: Registered protocol family 16
[ 0.348701] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.392763] vgaarb: loaded
[ 0.407080] SCSI subsystem initialized
[ 0.422080] usbcore: registered new interface driver usbfs
[ 0.423305] usbcore: registered new interface driver hub
[ 0.424185] usbcore: registered new device driver usb
[ 0.461745] clocksource: Switched to clocksource riscv_clocksource
[ 0.514095] NET: Registered protocol family 2
[ 0.528529] tcp_listen_portaddr_hash hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.530290] TCP established hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.531646] TCP bind hash table entries: 4096 (order: 4, 65536 bytes, linear)
[ 0.532928] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.538985] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.540705] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.544261] NET: Registered protocol family 1
[ 0.562610] RPC: Registered named UNIX socket transport module.
[ 0.563485] RPC: Registered udp transport module.
[ 0.564042] RPC: Registered tcp transport module.
[ 0.565086] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.565951] PCI: CLS 0 bytes, default 64
[ 0.586778] Unpacking initramfs...
[ 1.093160] Freeing initrd memory: 29240K
[ 1.094977] kvm [1]: hypervisor extension available
[ 1.096555] kvm [1]: host has 14 VMID bits
[ 1.107946] workingset: timestamp_bits=62 max_order=17 bucket_order=0
[ 1.131630] NFS: Registering the id_resolver key type
[ 1.142533] Key type id_resolver registered
[ 1.143345] Key type id_legacy registered
[ 1.144346] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 1.146719] 9p: Installing v9fs 9p2000 file system support
[ 1.150370] NET: Registered protocol family 38
[ 1.151575] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[ 1.160518] io scheduler mq-deadline registered
[ 1.164754] io scheduler kyber registered
[ 1.174222] pci-host-generic 30000000.pci: host bridge /soc/pci@30000000 ranges:
[ 1.176551] pci-host-generic 30000000.pci: IO 0x0003000000..0x000300ffff -> 0x0000000000
[ 1.178580] pci-host-generic 30000000.pci: MEM 0x0040000000..0x007fffffff -> 0x0040000000
[ 1.183167] pci-host-generic 30000000.pci: ECAM at [mem 0x30000000-0x3fffffff] for [bus 00-ff]
[ 1.186223] pci-host-generic 30000000.pci: PCI host bridge to bus 0000:00
[ 1.194053] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 1.195089] pci_bus 0000:00: root bus resource [io 0x0000-0xffff]
[ 1.196175] pci_bus 0000:00: root bus resource [mem 0x40000000-0x7fffffff]
[ 1.199601] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000
[ 1.402833] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 1.426389] printk: console [ttyS0] disabled
[ 1.429731] 10000000.uart: ttyS0 at MMIO 0x10000000 (irq = 2, base_baud = 230400) is a 16550A
[ 1.438034] printk: console [ttyS0] enabled
[ 1.438034] printk: console [ttyS0] enabled
[ 1.439706] printk: bootconsole [sbi0] disabled
[ 1.439706] printk: bootconsole [sbi0] disabled
[ 1.446702] [drm] radeon kernel modesetting enabled.
[ 1.498558] loop: module loaded
[ 1.507331] libphy: Fixed MDIO Bus: probed
[ 1.511661] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 1.512098] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 1.513120] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.513976] ehci-pci: EHCI PCI platform driver
[ 1.514768] ehci-platform: EHCI generic platform driver
[ 1.515809] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.516997] ohci-pci: OHCI PCI platform driver
[ 1.521850] ohci-platform: OHCI generic platform driver
[ 1.526169] usbcore: registered new interface driver uas
[ 1.529822] usbcore: registered new interface driver usb-storage
[ 1.531497] mousedev: PS/2 mouse device common for all mice
[ 1.539493] goldfish_rtc 101000.rtc: registered as rtc0
[ 1.547803] goldfish_rtc 101000.rtc: setting system clock to 2020-07-24T14:13:03 UTC (1595599983)
[ 1.552683] syscon-poweroff soc:poweroff: pm_power_off already claimed (____ptrval____) sbi_shutdown
[ 1.553664] syscon-poweroff: probe of soc:poweroff failed with error -16
[ 1.555564] usbcore: registered new interface driver usbhid
[ 1.556169] usbhid: USB HID core driver
[ 1.559380] NET: Registered protocol family 10
[ 1.581800] Segment Routing with IPv6
[ 1.584368] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 1.593630] NET: Registered protocol family 17
[ 1.596262] 9pnet: Installing 9P2000 support
[ 1.597109] Key type dns_resolver registered
[ 1.736463] Freeing unused kernel memory: 224K
[ 1.748111] Run /init as init process
_ _
| ||_|
| | _ ____ _ _ _ _
| || | _ \| | | |\ \/ /
| || | | | | |_| |/ \
|_||_|_| |_|\____|\_/\_/
Busybox Rootfs
Please press Enter to activate this console.
/ #
/ # cat /proc/cpuinfo
processor : 0
hart : 0
isa : rv64imafdcsuh
mmu : sv48
/ # cat /proc/interrupts
CPU0
1: 0 SiFive PLIC 11 101000.rtc
2: 153 SiFive PLIC 10 ttyS0
5: 449 RISC-V INTC 5 riscv-timer
IPI0: 0 Rescheduling interrupts
IPI1: 0 Function call interrupts
IPI2: 0 CPU stop interrupts
/ #
/ # dmesg | grep kvm
[ 1.094977] kvm [1]: hypervisor extension available
[ 1.096555] kvm [1]: host has 14 VMID bits
[ 20.254215] random: fast init done
/ #
/ # ./apps/lkvm-static run -m 128 -c2 --console serial -p "console=ttyS0 earlyco
n=sbi" -k ./apps/Image --debug
# lkvm run -k ./apps/Image -m 128 -c 2 --name guest-49
Info: (riscv/kvm.c) kvm__arch_load_kernel_image:115: Loaded kernel to 0x80200000 (17180396 bytes)
Info: (riscv/kvm.c) kvm__arch_load_kernel_image:126: Placing fdt at 0x81800000 - 0x87ffffff
# Warning: The maximum recommended amount of VCPUs is 1
Info: (virtio/mmio.c) virtio_mmio_init:325: virtio-mmio.devices=0x200@0x10000000:5
Info: (virtio/mmio.c) virtio_mmio_init:325: virtio-mmio.devices=0x200@0x10000200:6
Info: (virtio/mmio.c) virtio_mmio_init:325: virtio-mmio.devices=0x200@0x10000400:7
[ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
[ 0.000000] Linux version 5.8.0-rc4-00022-g906eafa224e2 (anup@anup-ubuntu64-vm) (riscv64-unknown-linux-gnu-gcc (GCC) 9.2.0, GNU ld (GNU Binutils) 2.34) #1 SMP Fri Jul 24 19:10:43 IST 2020
[ 0.000000] earlycon: sbi0 at I/O port 0x0 (options '')
[ 0.000000] printk: bootconsole [sbi0] enabled
[ 0.000000] initrd not found or empty - disabling initrd
[ 0.000000] Zone ranges:
[ 0.000000] DMA32 [mem 0x0000000080200000-0x0000000087ffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000080200000-0x0000000087ffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x0000000087ffffff]
[ 0.000000] software IO TLB: mapped [mem 0x83e3b000-0x87e3b000] (64MB)
[ 0.000000] SBI specification v0.1 detected
[ 0.000000] riscv: ISA extensions acdfimsu
[ 0.000000] riscv: ELF capabilities acdfim
[ 0.000000] percpu: Embedded 17 pages/cpu s31704 r8192 d29736 u69632
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 31815
[ 0.000000] Kernel command line: console=ttyS0 rw rootflags=trans=virtio,version=9p2000.L,cache=loose rootfstype=9p init=/virt/init ip=dhcp console=ttyS0 earlycon=sbi
[ 0.000000] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 0.000000] Sorting __ex_table...
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 43852K/129024K available (6456K kernel code, 4177K rwdata, 4096K rodata, 226K init, 323K bss, 85172K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] riscv-intc: 64 local interrupts mapped
[ 0.000000] plic: interrupt-controller@0c000000: mapped 1024 interrupts with 2 handlers for 4 contexts.
[ 0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [0]
[ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x24e6a1710, max_idle_ns: 440795202120 ns
[ 0.000462] sched_clock: 64 bits at 10MHz, resolution 100ns, wraps every 4398046511100ns
[ 0.192140] Console: colour dummy device 80x25
[ 0.285393] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=40000)
[ 0.458458] pid_max: default: 32768 minimum: 301
[ 0.540658] Mount-cache hash table entries: 512 (order: 0, 4096 bytes, linear)
[ 0.648749] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes, linear)
[ 1.185338] rcu: Hierarchical SRCU implementation.
[ 1.349954] smp: Bringing up secondary CPUs ...
[ 1.470979] smp: Brought up 1 node, 2 CPUs
[ 1.617900] devtmpfs: initialized
[ 1.657406] random: get_random_u32 called from bucket_table_alloc.isra.0+0x4e/0x154 with crng_init=0
[ 1.747392] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 1.826483] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[ 1.907386] NET: Registered protocol family 16
[ 2.213718] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 2.475095] vgaarb: loaded
[ 2.501863] SCSI subsystem initialized
[ 2.595730] usbcore: registered new interface driver usbfs
[ 2.639905] usbcore: registered new interface driver hub
[ 2.696809] usbcore: registered new device driver usb
[ 2.822278] clocksource: Switched to clocksource riscv_clocksource
[ 3.299615] NET: Registered protocol family 2
[ 3.356880] tcp_listen_portaddr_hash hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 3.414392] TCP established hash table entries: 1024 (order: 1, 8192 bytes, linear)
[ 3.470756] TCP bind hash table entries: 1024 (order: 2, 16384 bytes, linear)
[ 3.514658] TCP: Hash tables configured (established 1024 bind 1024)
[ 3.576687] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 3.630177] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 3.680676] NET: Registered protocol family 1
[ 3.775284] RPC: Registered named UNIX socket transport module.
[ 3.819144] RPC: Registered udp transport module.
[ 3.841901] RPC: Registered tcp transport module.
[ 3.874103] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 3.925972] PCI: CLS 0 bytes, default 64
[ 3.990906] kvm [1]: hypervisor extension not available
[ 4.084109] workingset: timestamp_bits=62 max_order=14 bucket_order=0
[ 4.329006] NFS: Registering the id_resolver key type
[ 4.368354] Key type id_resolver registered
[ 4.402982] Key type id_legacy registered
[ 4.458342] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 4.508398] 9p: Installing v9fs 9p2000 file system support
[ 4.554785] NET: Registered protocol family 38
[ 4.577585] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[ 4.618380] io scheduler mq-deadline registered
[ 4.657852] io scheduler kyber registered
[ 4.701986] pci-host-generic 30000000.pci: host bridge /smb/pci ranges:
[ 4.737162] pci-host-generic 30000000.pci: IO 0x0000000000..0x000000ffff -> 0x0000000000
[ 4.802374] pci-host-generic 30000000.pci: MEM 0x0040000000..0x007fffffff -> 0x0040000000
[ 4.875638] pci-host-generic 30000000.pci: ECAM at [mem 0x30000000-0x3fffffff] for [bus 00-01]
[ 4.935941] pci-host-generic 30000000.pci: PCI host bridge to bus 0000:00
[ 4.986299] pci_bus 0000:00: root bus resource [bus 00-01]
[ 5.026790] pci_bus 0000:00: root bus resource [io 0x0000-0xffff]
[ 5.056620] pci_bus 0000:00: root bus resource [mem 0x40000000-0x7fffffff]
[ 6.504299] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 6.599439] printk: [ 49.963914] random: crng init done
console [ttyS0] disabled
[ 6.654700] 3f8.U6_16550A: ttyS0 at MMIO 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 6.790086] printk: console [ttyS0] enabled
[ 6.790086] printk: console [ttyS0] enabled
[ 6.956712] printk: bootconsole [sbi0] disabled
[ 6.956712] printk: bootconsole [sbi0] disabled
[ 7.260082] 2f8.U6_16550A: ttyS1 at MMIO 0x2f8 (irq = 6, base_baud = 115200) is a 16550A
[ 7.472211] 3e8.U6_16550A: ttyS2 at MMIO 0x3e8 (irq = 7, base_baud = 115200) is a 16550A
[ 7.648595] 2e8.U6_16550A: ttyS3 at MMIO 0x2e8 (irq = 8, base_baud = 115200) is a 16550A
[ 7.876601] [drm] radeon kernel modesetting enabled.
[ 8.367585] loop: module loaded
[ 8.429445] libphy: Fixed MDIO Bus: probed
[ 8.619027] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 8.672326] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 8.735401] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 8.786957] ehci-pci: EHCI PCI platform driver
[ 8.838507] ehci-platform: EHCI generic platform driver
[ 8.888295] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 8.935779] ohci-pci: OHCI PCI platform driver
[ 8.988653] ohci-platform: OHCI generic platform driver
[ 9.057997] usbcore: registered new interface driver uas
[ 9.112335] usbcore: registered new interface driver usb-storage
[ 9.198880] mousedev: PS/2 mouse device common for all mice
[ 9.302016] usbcore: registered new interface driver usbhid
[ 9.395929] usbhid: USB HID core driver
[ 9.471423] NET: Registered protocol family 10
[ 9.592811] Segment Routing with IPv6
[ 9.641775] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 9.786196] NET: Registered protocol family 17
[ 9.840752] 9pnet: Installing 9P2000 support
[ 9.946881] Key type dns_resolver registered
[ 10.211675] Sending DHCP requests ., OK
[ 10.397504] IP-Config: Got DHCP answer from 192.168.33.1, my address is 192.168.33.15
[ 10.508955] IP-Config: Complete:
[ 10.581026] device=eth0, hwaddr=02:15:15:15:15:15, ipaddr=192.168.33.15, mask=255.255.255.0, gw=192.168.33.1
[ 10.721266] host=192.168.33.15, domain=, nis-domain=(none)
[ 10.843717] bootserver=192.168.33.1, rootserver=0.0.0.0, rootpath=
[ 10.843797] nameserver0=192.168.33.1
[ 11.330174] VFS: Mounted root (9p filesystem) on device 0:15.
[ 11.479845] devtmpfs: mounted
[ 11.782526] Freeing unused kernel memory: 224K
[ 11.945910] Run /virt/init as init process
Mounting...
/ #
[ 14.411692] random: fast init done
/ # cat /proc/interrupts
CPU0 CPU1
1: 116 0 SiFive PLIC 5 virtio0
2: 148 0 SiFive PLIC 6 virtio1
3: 9 0 SiFive PLIC 7 virtio2
4: 51 0 SiFive PLIC 1 ttyS0
5: 1114 1054 RISC-V INTC 5 riscv-timer
IPI0: 14 15 Rescheduling interrupts
IPI1: 774 453 Function call interrupts
IPI2: 0 0 CPU stop interrupts
/ #
/ # cat /proc/cpuinfo
processor : 0
hart : 0
isa : rv64imafdcsu
mmu : sv48
processor : 1
hart : 1
isa : rv64imafdcsu
mmu : sv48
/ #
/ # ping 192.168.33.1
PING 192.168.33.1 (192.168.33.1): 56 data bytes
64 bytes from 192.168.33.1: seq=0 ttl=64 time=91.396 ms
64 bytes from 192.168.33.1: seq=1 ttl=64 time=9.084 ms
64 bytes from 192.168.33.1: seq=2 ttl=64 time=7.331 ms
64 bytes from 192.168.33.1: seq=3 ttl=64 time=5.014 ms
64 bytes from 192.168.33.1: seq=4 ttl=64 time=5.153 ms
64 bytes from 192.168.33.1: seq=5 ttl=64 time=19.687 ms
64 bytes from 192.168.33.1: seq=6 ttl=64 time=9.199 ms
64 bytes from 192.168.33.1: seq=7 ttl=64 time=5.727 ms
64 bytes from 192.168.33.1: seq=8 ttl=64 time=11.390 ms
64 bytes from 192.168.33.1: seq=9 ttl=64 time=4.804 ms
64 bytes from 192.168.33.1: seq=10 ttl=64 time=7.332 ms
64 bytes from 192.168.33.1: seq=11 ttl=64 time=8.857 ms
64 bytes from 192.168.33.1: seq=12 ttl=64 time=6.873 ms
^C
--- 192.168.33.1 ping statistics ---
13 packets transmitted, 13 packets received, 7% packet loss
round-trip min/avg/max = 4.804/14.757/91.396 ms
/ #
/ #
/ # poweroff -f
[ 50.417780] reboot: Power down
# KVM session ended normally.
/ #
/ #