[Qemu-devel] 32 bit emulating 64 bit

[Qemu-devel] 32 bit emulating 64 bit

[Nigel Horne]

[-- Attachment #1: Type: text/plain, Size: 419 bytes --]

Is it possible to use a 32 bit host to run a 64 bit guest? I can't get the IA64 version
of FreeBSD6.2 to boot under my 32 bit Linux, qemu just changes its status bar to QEMU [ stopped ]
no reason or message is printed, it just silently stops.

-Nigel

-- 
Nigel Horne. Arranger, Adjudicator, Band Trainer, Composer, Tutor, Typesetter.
NJH Music, Barnsley, UK.  ICQ#20252325
njh@bandsman.co.uk http://www.bandsman.co.uk

[-- Attachment #2: njh.vcf --]
[-- Type: text/x-vcard, Size: 181 bytes --]

begin:vcard
fn:Nigel Horne
n:Horne;Nigel
org:NJH Music
email;internet:njh@bandsman.co.uk
tel;fax:+44 870 705 9334
note:Skype: nigelhorne
x-mozilla-html:FALSE
version:2.1
end:vcard

Re: [Qemu-devel] 32 bit emulating 64 bit

[Avi Kivity]

Nigel Horne wrote:
> Is it possible to use a 32 bit host to run a 64 bit guest? 

Sure.

> I can't get the IA64 version
> of FreeBSD6.2 to boot under my 32 bit Linux, qemu just changes its 
> status bar to QEMU [ stopped ]
> no reason or message is printed, it just silently stops.

I presume you mean the x86-64 (aka AMD64 or IA32e) version.   You need 
to use qemu-system-x86_64.


-- 
error compiling committee.c: too many arguments to function

Re: [Qemu-devel] 32 bit emulating 64 bit

[Andreas Färber]

Am 09.07.2007 um 18:57 schrieb Avi Kivity:

>> I can't get the IA64 version
>> of FreeBSD6.2 to boot under my 32 bit Linux, qemu just changes its  
>> status bar to QEMU [ stopped ]
>> no reason or message is printed, it just silently stops.
>
> I presume you mean the x86-64 (aka AMD64 or IA32e) version.   You  
> need to use qemu-system-x86_64.

qemu does not appear to have IA64 guest support at this time, the  
status page only mentions dev-only host support.

Andreas

Re: [Qemu-devel] 32 bit emulating 64 bit

[Nigel Horne]

[-- Attachment #1: Type: text/plain, Size: 624 bytes --]

Andreas Färber wrote:
> 
> Am 09.07.2007 um 18:57 schrieb Avi Kivity:
> 
>>> I can't get the IA64 version
>>> of FreeBSD6.2 to boot under my 32 bit Linux, qemu just changes its 
>>> status bar to QEMU [ stopped ]
>>> no reason or message is printed, it just silently stops.
>>
>> I presume you mean the x86-64 (aka AMD64 or IA32e) version.   You need 
>> to use qemu-system-x86_64.

Yes, that's the one I'm attempting to use.

-Nigel


-- 
Nigel Horne. Arranger, Adjudicator, Band Trainer, Composer, Tutor, Typesetter.
NJH Music, Barnsley, UK.  ICQ#20252325
njh@bandsman.co.uk http://www.bandsman.co.uk

[-- Attachment #2: njh.vcf --]
[-- Type: text/x-vcard, Size: 181 bytes --]

begin:vcard
fn:Nigel Horne
n:Horne;Nigel
org:NJH Music
email;internet:njh@bandsman.co.uk
tel;fax:+44 870 705 9334
note:Skype: nigelhorne
x-mozilla-html:FALSE
version:2.1
end:vcard

Re: [Qemu-devel] 32 bit emulating 64 bit

[Blue Swirl]

On 7/9/07, Nigel Horne <njh@bandsman.co.uk> wrote:
> Is it possible to use a 32 bit host to run a 64 bit guest? I can't get the IA64 version
> of FreeBSD6.2 to boot under my 32 bit Linux, qemu just changes its status bar to QEMU [ stopped ]
> no reason or message is printed, it just silently stops.

Generally yes, I don't know about IA64 status. For example Sparc64
emulator on x86 runs as fine as on x86-64:
OpenBIOS for Sparc64
boot arg = 0x0

00000000-08000000
RAM 128 MB
forth started.
initializing memory...done
Initializing PCI devices...
0:0.0 - 108e:a000 - /pci/pci108e,a000 - host
0:1.0 - 108e:5000 - /pci/pci108e,5000 - pci
0:1.1 - 108e:5000 - /pci/pci108e,5000 - pci
0:2.0 - 1013:b8 - /pci/pci1013,b8 - display
0:3.0 - 10ec:8029 - /pci/pci10ec,8029 - ethernet
0:4.0 - 8086:7010 - /pci/pci8086,7010 - ide
ide0: [io ports 0x1f0-0x1f7,0x3f6]
    drive0 [ATA disk]: QEMU HARDDISK
ide1: [io ports 0x170-0x177,0x376]
    drive0 [ATAPI floppy]: QEMU CD-ROM
floppy_init
FDC is a S82078B
floppy_reset
floppy_motor_off
SENSEI 20 00
status = 80, reply_buffer= 20 0
fdc_specify
FD_SPECIFY(c1, 11)
set_drive status = 80, new_dor = 10
floppy_recalibrate
fdc_state.version = 0062
invalid nvram partition length
nvram error detected, zapping pram
falling off...
Unhandled Exception 0x0000000000000008
PC = 0x0000000000000008 NPC = 0x000000000000000c
Stopping execution

The physical address space is much larger than 4G.