From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HYthw-0004eK-Qy for qemu-devel@nongnu.org; Tue, 03 Apr 2007 20:50:40 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1HYthv-0004bu-2l for qemu-devel@nongnu.org; Tue, 03 Apr 2007 20:50:40 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HYthu-0004bU-PN for qemu-devel@nongnu.org; Tue, 03 Apr 2007 20:50:38 -0400 Received: from mail.windriver.com ([147.11.1.11] helo=mail.wrs.com) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1HYteh-0000sa-Kx for qemu-devel@nongnu.org; Tue, 03 Apr 2007 20:47:19 -0400 Received: from ALA-MAIL03.corp.ad.wrs.com (ala-mail03 [147.11.57.144]) by mail.wrs.com (8.13.6/8.13.6) with ESMTP id l340lG7k000665 for ; Tue, 3 Apr 2007 17:47:16 -0700 (PDT) Message-ID: <4612F5C4.6080301@windriver.com> Date: Tue, 03 Apr 2007 19:48:04 -0500 From: Jason Wessel MIME-Version: 1.0 Subject: Re: [Qemu-devel] Is it possible to boot qemu-system-ppc with -kernel? References: <200704031821.46569.rob@landley.net> In-Reply-To: <200704031821.46569.rob@landley.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org To boot the prep machine you need to configure the kernel for prep and use the zImage.prep file. IE: CONFIG_PPC_PREP=y Right now you selected CONFIG_PPC_CHRP In any kernel > 2.6.20 there is a bug where no PCI interrupts go to sleep and the default prep loader has a size limit. I worked around this by modifying the prep loader to accept a bigger image, as well as to process the kernel arguments passed by QEMU. So yes it is definitely possible to boot a prep image, but there some tricks. I also only use the serial ports, so I am not certain if the frame buffer actually works. Jason. Rob Landley wrote: > I've been trying several variants of: > > qemu-system-ppc -M prep -nographic -hda "ext2.img" -kernel "zImage" \ > -append "rw init=/tools/bin/sh panic=1 PATH=/tools/bin root=/dev/hda > console=/dev/ttyS0" > > My miniconfig is attached. (You can make a full-sized .config out of it with > "make allnoconfig KCONFIG_ALLSYMS=miniconfig-linux", I still need to get the > miniconfig patch in so there's a better UI.) I'm trying to boot the zImage > file that produces. > > Unfortunately, I've never managed to boot a ppc kernel under qemu > with -kernel. I've got to be doing something wrong, but I don't know what it > is. Could you offer any hints? > > Here's the output I get: > > >> Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal >> error, but for better emulation accuracy either use a 2.6 host Linux kernel >> or type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root. >> init_ppc_proc: PVR 00040000 mask ffffffff => 00040000 >> register PCI host 'pci-bridge' 'pci' '' 'PREP Host PCI Bridge - >> Motorola Raven' register 'pci-bridge' 'pci' '' 'PREP Host PCI Bridge >> - Motorola Raven' 0x80000000 in 'device-tree' 0xffffffff Done 582b000 >> 582b880 >> PCI device '' 0 11 0 has no reg properties: >> PCI device '' 0 11 0 has no assigned addresses properties: >> register pci device 'Qemu VGA' 0000000c 'display' 'VGA' 'Qemu VGA' >> register 'Qemu VGA' 'display' 'VGA' 'Qemu VGA' 0x0000000c in 'pci-bridge' >> 0x80000000 Done 582b880 582b980 >> PCI device 'Qemu VGA' 0 12 0 reg properties: >> addr: 82006010 00000000 f0000000 size: 00000000 00800000 >> PCI device 'Qemu VGA' 0 12 0 assigned addresses properties: >> addr: 82006010 00000000 f0000000 size: 00000000 00800000 >> PPC Open Hack'Ware BIOS for qemu version 0.4.1 >> Build 2005-07-06 23:10:57 >> Copyright 2003-2005 Jocelyn Mayer >> >> Memory size: 144 MB. >> Booting from device m >> ide0: drive 0: Hard Disk >> ERROR: OF_property_copy cannot get property 'hd' for aliases >> ide0: drive 1: CD-ROM >> ERROR: OF_property_copy cannot get property 'cd' for aliases >> ERROR: ATAPI TEST_UNIT_READY : status 41 != 0x40 >> ide1: drive 0: none >> ide1: drive 1: none >> Probe partitions for device c >> ERROR: No MSDOS signature (0 0 0 0) >> Boot partition: 0 9401fff8 9401fff8 0 >> Probe partitions for device m >> ERROR: No MSDOS signature (38 0 0 0) >> Use bloc device as raw partition >> Boot partition: 0 9401fff8 9401fff8 0 >> ERROR: OF_property_copy cannot get property 'alias' for >> boot device: 5833180 image 1000000 size 1106232 >> ERROR: No MSDOS signature (7f 45 0 0) >> Use bloc device as raw partition >> Boot partition: 0 9401fff8 9401fff8 0 >> boot device: 5833180 >> ERROR: Found no boot partition! >> ERROR: BUG caught... >> BIOS execution exception >> nip=0x05800000 msr=0x00002000 dar=0x00000000 dsisr=0x00000000 >> Stopping execution >> > > It's not getting _to_ the kernel. (I tried booting vmlinux instead of > bzImage, but it made no difference.) > > Thanks, > > Rob > > ------------------------------------------------------------------------ > > CONFIG_PPC_CHRP=y > CONFIG_SWAP=y > CONFIG_IKCONFIG=y > CONFIG_IKCONFIG_PROC=y > CONFIG_LSF=y > CONFIG_BINFMT_ELF=y > CONFIG_PM=y > CONFIG_NET=y > CONFIG_PACKET=y > CONFIG_UNIX=y > CONFIG_INET=y > CONFIG_BLK_DEV_LOOP=y > CONFIG_IDE=y > CONFIG_BLK_DEV_IDE=y > CONFIG_BLK_DEV_IDEDISK=y > CONFIG_IDE_GENERIC=y > CONFIG_BLK_DEV_IDEPCI=y > CONFIG_BLK_DEV_GENERIC=y > CONFIG_NETDEVICES=y > CONFIG_NET_ETHERNET=y > CONFIG_NET_PCI=y > CONFIG_NE2K_PCI=y > CONFIG_SERIAL_8250=y > CONFIG_SERIAL_8250_CONSOLE=y > CONFIG_EXT2_FS=y > CONFIG_EXT3_FS=y > CONFIG_SQUASHFS=y > -- Jason Wessel, SMTS Linux Products, Wind River direct +1.630.971.6420 mobile +1.630.715.4615 fax +1.630.971.6433