compiled for one CPU on another CPU. Linux system calls are converted
because of endianness and 32/64 bit mismatches. The Wine Windows API
emulator (@url{http://www.winehq.org}) and the DOSEMU DOS emulator
-(@url{www.dosemu.org}) are the main targets for QEMU.
+(@url{http://www.dosemu.org}) are the main targets for QEMU.
@item
Full system emulation. In this mode, QEMU emulates a full
@item
PS/2 mouse and keyboard
@item
-IDE disk interface (port=0x1f0, irq=14)
+2 IDE interfaces with hard disk and CD-ROM support
@item
NE2000 network adapter (port=0x300, irq=9)
@item
-Serial port (port=0x3f8, irq=4)
+Serial port
+@item
+Soundblaster 16 card
@item
PIC (interrupt controler)
@item
@example
> ./qemu.sh
-connected to host network interface: tun0
-Uncompressing Linux... Ok, booting the kernel.
-Linux version 2.4.20 (fabrice@localhost.localdomain) (gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-110)) #22 lun jui 7 13:37:41 CEST 2003
+Connected to host network interface: tun0
+Linux version 2.4.21 (bellard@voyager.localdomain) (gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #5 Tue Nov 11 18:18:53 CET 2003
BIOS-provided physical RAM map:
BIOS-e801: 0000000000000000 - 000000000009f000 (usable)
BIOS-e801: 0000000000100000 - 0000000002000000 (usable)
zone(0): 4096 pages.
zone(1): 4096 pages.
zone(2): 0 pages.
-Kernel command line: root=/dev/hda ide1=noprobe ide2=noprobe ide3=noprobe ide4=noprobe ide5=noprobe
-ide_setup: ide1=noprobe
+Kernel command line: root=/dev/hda sb=0x220,5,1,5 ide2=noprobe ide3=noprobe ide4=noprobe ide5=noprobe console=ttyS0
ide_setup: ide2=noprobe
ide_setup: ide3=noprobe
ide_setup: ide4=noprobe
ide_setup: ide5=noprobe
Initializing CPU#0
-Detected 501.285 MHz processor.
-Calibrating delay loop... 989.59 BogoMIPS
-Memory: 29268k/32768k available (907k kernel code, 3112k reserved, 212k data, 52k init, 0k highmem)
+Detected 2399.621 MHz processor.
+Console: colour EGA 80x25
+Calibrating delay loop... 4744.80 BogoMIPS
+Memory: 28872k/32768k available (1210k kernel code, 3508k reserved, 266k data, 64k init, 0k highmem)
Dentry cache hash table entries: 4096 (order: 3, 32768 bytes)
Inode cache hash table entries: 2048 (order: 2, 16384 bytes)
-Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
+Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
CPU: Intel Pentium Pro stepping 03
apm: BIOS not found.
Starting kswapd
Journalled Block Device driver loaded
+Detected PS/2 Mouse Port.
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at 0x03f8 (irq = 4) is a 16450
-Uniform Multi-Platform E-IDE driver Revision: 6.31
-ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
-hda: QEMU HARDDISK, ATA DISK drive
-ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
-hda: 12288 sectors (6 MB) w/256KiB Cache, CHS=12/16/63
-Partition check:
- hda: unknown partition table
ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)
Last modified Nov 1, 2000 by Paul Gortmaker
NE*000 ethercard probe at 0x300: 52 54 00 12 34 56
eth0: NE2000 found at 0x300, using IRQ 9.
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
+Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
+ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
+hda: QEMU HARDDISK, ATA DISK drive
+ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
+hda: attached ide-disk driver.
+hda: 20480 sectors (10 MB) w/256KiB Cache, CHS=20/16/63
+Partition check:
+ hda:
+Soundblaster audio driver Copyright (C) by Hannu Savolainen 1993-1996
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
VFS: Mounted root (ext2 filesystem).
-Freeing unused kernel memory: 52k freed
-sh: can't access tty; job control turned off
-#
+Freeing unused kernel memory: 64k freed
+
+Linux version 2.4.21 (bellard@voyager.localdomain) (gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #5 Tue Nov 11 18:18:53 CET 2003
+
+QEMU Linux test distribution (based on Redhat 9)
+
+Type 'exit' to halt the system
+
+sh-2.05b#
@end example
@item
General options:
@table @option
+@item -fda file
+@item -fdb file
+Use @var{file} as floppy disk 0/1 image (@xref{disk_images}).
+
@item -hda file
@item -hdb file
-Use @var{file} as hard disk 0 or 1 image (@xref{disk_images}).
+@item -hdc file
+@item -hdd file
+Use @var{file} as hard disk 0, 1, 2 or 3 image (@xref{disk_images}).
-@item -snapshot
+@item -cdrom file
+Use @var{file} as CD-ROM image (you cannot use @option{-hdc} and and
+@option{-cdrom} at the same time).
+
+@item -boot [a|b|c|d]
+Boot on floppy (a, b), hard disk (c) or CD-ROM (d). Hard disk boot is
+the default.
+@item -snapshot
Write to temporary files instead of disk image files. In this case,
the raw disk image you use is not written back. You can however force
the write back by pressing @key{C-a s} (@xref{disk_images}).
In order to use gdb, launch qemu with the '-s' option. It will wait for a
gdb connection:
@example
-> qemu -s arch/i386/boot/bzImage -hda root-2.4.20.img root=/dev/hda
+> qemu -s -kernel arch/i386/boot/bzImage -hda root-2.4.20.img -append "root=/dev/hda"
Connected to host network interface: tun0
Waiting gdb connection on port 1234
@end example
In gdb, connect to QEMU:
@example
-(gdb) target remote locahost:1234
+(gdb) target remote localhost:1234
@end example
Then you can use gdb normally. For example, type 'c' to launch the kernel:
projects / qemu / blobdiff