* Linux ARM SMP kernel for qemu
[not found] <AANLkTimi5B8pBVatpq4n2HvcT-iU6+EXwdntV1ucAkVL@mail.gmail.com>
@ 2011-01-21 15:17 ` Kevin Pouget
2011-01-22 23:15 ` Loïc Minier
2011-01-23 5:44 ` Rabin Vincent
0 siblings, 2 replies; 3+ messages in thread
From: Kevin Pouget @ 2011-01-21 15:17 UTC (permalink / raw)
To: linux-arm-kernel
Hello,
do you know if it's feasible to compile a Linux kernel to be run by a Qemu
SMP ARM machine? after so many hours of tries, I can say that any version of
the kernel, any Qemu machine would be okay, provided that the SMP capability
is set, and the kernel boots !
Cordially,
Kevin Pouget
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* Linux ARM SMP kernel for qemu
2011-01-21 15:17 ` Linux ARM SMP kernel for qemu Kevin Pouget
@ 2011-01-22 23:15 ` Loïc Minier
2011-01-23 5:44 ` Rabin Vincent
1 sibling, 0 replies; 3+ messages in thread
From: Loïc Minier @ 2011-01-22 23:15 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Jan 21, 2011, Kevin Pouget wrote:
> do you know if it's feasible to compile a Linux kernel to be run by a Qemu
> SMP ARM machine? after so many hours of tries, I can say that any version of
> the kernel, any Qemu machine would be okay, provided that the SMP capability
> is set, and the kernel boots !
I apologize for the old references, but I wondered the same a while ago
and managed to get a SMP Realview EB kernel booted in QEMU IIRC. I
think it was only armv6 SMP back then. Main issue I had back then was
that it wouldn't support PCI so no networking or IDE. My notes are at:
https://lists.ubuntu.com/archives/ubuntu-mobile/2009-May/002485.html
(some other related message same month and next month)
I would myself love hearing what you manage to achieve, with which
configs and issues!
--
Lo?c Minier
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* Linux ARM SMP kernel for qemu
2011-01-21 15:17 ` Linux ARM SMP kernel for qemu Kevin Pouget
2011-01-22 23:15 ` Loïc Minier
@ 2011-01-23 5:44 ` Rabin Vincent
1 sibling, 0 replies; 3+ messages in thread
From: Rabin Vincent @ 2011-01-23 5:44 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Jan 21, 2011 at 20:47, Kevin Pouget <kevin.pouget@gmail.com> wrote:
> do you know if it's feasible to compile a Linux kernel to be run by a
> Qemu SMP ARM machine? after so many hours of tries, I can say that any
> version of the kernel, any Qemu machine would be okay, provided that
> the SMP capability is set, and the kernel boots !
Try the kernel from latest git, QEMU from latest git, and the attached
.config.
The .config is just realview_smp-defconfig with:
- PB11 and ARMv6 disabled
- PBX A9 and ARMv7 enabled
- CONFIG_REALVIEW_HIGH_PHYS_OFFSET disabled
Initramfs support is also enabled. You can boot it with this line (you'll
need an initramfs or initrd to get to userspace):
qemu-system-arm -kernel arch/arm/boot/uImage -nographic \
-append "earlyprintk console=ttyAMA0 mem=128M debug" \
-M realview-pbx-a9 -m 128M -initrd ~/kernel/root -smp 2
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2011-01-21 15:17 ` Linux ARM SMP kernel for qemu Kevin Pouget
2011-01-22 23:15 ` Loïc Minier
2011-01-23 5:44 ` Rabin Vincent
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