* [Qemu-devel] What about SMP support in QEMU?
@ 2009-09-16 13:21 Naruil
2009-09-17 7:07 ` Robin Randhawa
2009-09-19 9:43 ` Blue Swirl
0 siblings, 2 replies; 3+ messages in thread
From: Naruil @ 2009-09-16 13:21 UTC (permalink / raw)
To: qemu-devel
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Is SMP supported in qemu on the following target architectures?
ARM SPARC MIPS
Many thanks
Naruil
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] What about SMP support in QEMU?
2009-09-16 13:21 [Qemu-devel] What about SMP support in QEMU? Naruil
@ 2009-09-17 7:07 ` Robin Randhawa
2009-09-19 9:43 ` Blue Swirl
1 sibling, 0 replies; 3+ messages in thread
From: Robin Randhawa @ 2009-09-17 7:07 UTC (permalink / raw)
To: Naruil; +Cc: qemu-devel
Hi Naruil.
On 16 Sep 2009, at 14:21, Naruil wrote:
> Is SMP supported in qemu on the following target architectures?
>
> ARM SPARC MIPS
AFAIK, qemu ARM has SMP support. More specifically, qemu models an
ARM11 MPCore on a realview baseboard system. It is capable of booting
Linux SMP on this model.
FYI, (and this is based on cursory examination so could be wrong) -
qemu's SMP support is not 'concurrent' - qemu switches between the
emulation of individual MPCores and there is no mapping of core
emulation to host cores (that would be a more realistic model of SMP
concurrency) since that is fraught with locking overheads etc and is
likely to make the qemu translation process very slow.
HTH,
Robin
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] What about SMP support in QEMU?
2009-09-16 13:21 [Qemu-devel] What about SMP support in QEMU? Naruil
2009-09-17 7:07 ` Robin Randhawa
@ 2009-09-19 9:43 ` Blue Swirl
1 sibling, 0 replies; 3+ messages in thread
From: Blue Swirl @ 2009-09-19 9:43 UTC (permalink / raw)
To: Naruil; +Cc: qemu-devel
On Wed, Sep 16, 2009 at 4:21 PM, Naruil <naruilone@gmail.com> wrote:
> Is SMP supported in qemu on the following target architectures?
>
> ARM SPARC MIPS
Sparc32 can emulate 4 CPUs, works with Linux guest at least. The
emulated platform should be SS-600MP, SS-10 or SS-20.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2009-09-16 13:21 [Qemu-devel] What about SMP support in QEMU? Naruil
2009-09-17 7:07 ` Robin Randhawa
2009-09-19 9:43 ` Blue Swirl
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