qemu运行吗arm linux,Qemu 运行ARMv8开发平台 ubuntu16.04

1. Ubuntu 安装aarch64的gcc编译工具：

sudo apt-get install gcc-aarch64-Linux-gnu

2. 编译制作aarch64架构的最小文件系统

Download busybox：

http://busybox.net/download

$cd busybox

$export ARCH=arm64

$export CROSS_COMPILE=aarch64-Linux-gnu-

$make menuconfig静态编译busybox

Busybox Settings  --->

Build Options  --->

[*] Build BusyBox as a static binary (no shared libs)

$make

$make install

$cp _install/ -rf ../Linux-4.0/

$cd Linux-4.0/_install

$mkdir etc dev mnt

$mkdir -p etc/init.d/

$vim init.d/rcS

mkdir -p /proc

mkdir -p /tmp

mkdir -p /sys

mkdir -p /mnt

/bin/mount -a

mkdir -p /dev/pts

mount -t devpts devpts /dev/pts

echo /sbin/mdev > /proc/sys/kernel/hotplug

mdev -s

$vim etc/fstab

proc /proc proc defaults 0 0

tmpfs /tmp tmpfs defaults 0 0

sysfs /sys sysfs defaults 0 0

tmpfs /dev tmpfs defaults 0 0

debugfs /sys/kernel/debug debugfs defaults 0 0

$vim etc/inittab

::sysinit:/etc/init.d/rcS

::respawn:-/bin/sh

::askfirst:-/bin/sh

::cttlaltdel:/bin/umount -a -r

$cd dev

sudo mknod console c 5 1

sudo mknod null c 1 3

3.编译Linux kernel

$export ARCH=arm64

$export CROSS_COMPILE=aarch64-Linux-gnu-

$make menuconfigGeneral setup  --->

[*] Initial RAM filesystem and RAM disk (initramfs/initrd) support                                                                                                         │ │

│ │                                                                                                    (_install) Initramfs source file(s)

Boot options  --->

Default kernel command string

Kernel Features  --->

Page size (4KB)  --->

Virtual address space size (48-bit)  --->

$make -j8

$qemu-system-aarch64 -machine virt -cpu cortex-a57 -machine type=virt -nographic -m 2048 -smp 2 -kernel arch/arm64/boot/Image --append "rdinit=/Linuxrc console=ttyAMA0"

Booting Linux on physical CPU 0x0

Initializing cgroup subsys cpuset

Linux version 4.0.0 ([email protected]) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) #5 SMP Sun Oct 1 12:53:11 CST 2017

CPU: AArch64 Processor [411fd070] revision 0

Detected PIPT I-cache on CPU0

efi: Getting EFI parameters from FDT:

efi: UEFI not found.

psci: probing for conduit method from DT.

psci: PSCIv0.2 detected in firmware.

psci: Using standard PSCI v0.2 function IDs

PERCPU: Embedded 14 pages/cpu @ffff80007ffcc000 s18008 r8192 d31144 u57344

Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 516096

Kernel command line: rdinit=/Linuxrc console=ttyAMA0

PID hash table entries: 4096 (order: 3, 32768 bytes)

Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)

Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)

software IO TLB [mem 0xb9a00000-0xbda00000] (64MB) mapped at [ffff800079a00000-ffff80007d9fffff]

Memory: 1986756K/2097152K available (4795K kernel code, 281K rwdata, 1640K rodata, 1312K init, 220K bss, 110396K reserved, 0K cma-reserved)

Virtual kernel memory layout:

vmalloc : 0xffff000000000000 - 0xffff7bffbfff0000   (126974 GB)

vmemmap : 0xffff7bffc0000000 - 0xffff7fffc0000000   (  4096 GB maximum)

0xffff7bffc1000000 - 0xffff7bffc3000000   (    32 MB actual)

fixed   : 0xffff7ffffabfe000 - 0xffff7ffffac00000   (     8 KB)

PCI I/O : 0xffff7ffffae00000 - 0xffff7ffffbe00000   (    16 MB)

modules : 0xffff7ffffc000000 - 0xffff800000000000   (    64 MB)

memory  : 0xffff800000000000 - 0xffff800080000000   (  2048 MB)

.init : 0xffff8000006cb000 - 0xffff800000813000   (  1312 KB)

.text : 0xffff800000080000 - 0xffff8000006ca504   (  6442 KB)

.data : 0xffff800000815000 - 0xffff80000085b600   (   282 KB)

SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1

Hierarchical RCU implementation.

CONFIG_RCU_FANOUT set to non-default value of 32

Additional per-CPU info printed with stalls.

RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.

RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2

NR_IRQS:64 nr_irqs:64 0

Architected cp15 timer(s) running at 62.50MHz (virt).

sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 2199023255552ns

Console: colour dummy device 80x25

Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)

Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)

EFI services will not be available.

CPU1: Booted secondary processor

Detected PIPT I-cache on CPU1

Brought up 2 CPUs

SMP: Total of 2 processors activated.

devtmpfs: initialized

DMI not present or invalid.

NET: Registered protocol family 16

cpuidle: using governor ladder

cpuidle: using governor menu

vdso: 2 pages (1 code @ ffff80000081d000, 1 data @ ffff80000081c000)

hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.

DMA: preallocated 256 KiB pool for atomic allocations

Serial: AMBA PL011 UART driver

9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 38, base_baud = 0) is a PL011 rev1

console [ttyAMA0] enabled

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

Advanced Linux Sound Architecture Driver Initialized.

Switched to clocksource arch_sys_counter

NET: Registered protocol family 2

TCP established hash table entries: 16384 (order: 5, 131072 bytes)

TCP bind hash table entries: 16384 (order: 6, 262144 bytes)

TCP: Hash tables configured (established 16384 bind 16384)

TCP: reno registered

UDP hash table entries: 1024 (order: 3, 32768 bytes)

UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)

NET: Registered protocol family 1

RPC: Registered named UNIX socket transport module.

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

futex hash table entries: 512 (order: 3, 32768 bytes)

squashfs: version 4.0 (2009/01/31) Phillip Lougher

jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.

9p: Installing v9fs 9p2000 file system support

io scheduler noop registered (default)

0.flash: Found 2 x16 devices at 0x0 in 32-bit bank. Manufacturer ID 0x000000 Chip ID 0x000000

Intel/Sharp Extended Query Table at 0x0031

Using buffer write method

0.flash: Found 2 x16 devices at 0x0 in 32-bit bank. Manufacturer ID 0x000000 Chip ID 0x000000

Intel/Sharp Extended Query Table at 0x0031

Using buffer write method

Concatenating MTD devices:

(0): "0.flash"

(1): "0.flash"

into device "0.flash"

usbcore: registered new interface driver usb-storage

mousedev: PS/2 mouse device common for all mice

rtc-pl031 9010000.pl031: rtc core: registered pl031 as rtc0

Driver 'mmcblk' needs updating - please use bus_type methods

ledtrig-cpu: registered to indicate activity on CPUs

usbcore: registered new interface driver usbhid

usbhid: USB HID core driver

TCP: cubic registered

NET: Registered protocol family 17

9pnet: Installing 9P2000 support

rtc-pl031 9010000.pl031: setting system clock to 2017-10-01 04:53:36 UTC (1506833616)

ALSA device list:

No soundcards found.

Freeing unused kernel memory: 1312K (ffff8000006cb000 - ffff800000813000)

Freeing alternatives memory: 4K (ffff800000813000 - ffff800000814000)

Bad inittab entry at line 4

Please press Enter to activate this console.

/ # ls

bin      etc      mnt      sbin     tmp

dev      Linuxrc  proc     sys      usr

/ #

/ #4.ok ， 到这里就已经run起来了。