[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] kqemu version 1.3.0pre5
From: |
Ed Swierk |
Subject: |
Re: [Qemu-devel] kqemu version 1.3.0pre5 |
Date: |
Tue, 28 Mar 2006 11:38:20 -0800 |
On 3/28/06, Jens Axboe <address@hidden> wrote:
> > monitor/mwait feature present.
> > using mwait in idle threads.
>
> [snip]
>
> > invalid operand: 0000 [#1]
> > Modules linked in:
> > CPU: 0
> > EIP: 0060:[<c0101147>] Not tainted VLI
> > EFLAGS: 00010246 (2.6.14-1.1656_FC4)
> > EIP is at mwait_idle+0x2f/0x41
>
> I don't think qemu supports PNI, which includes the monitor/mwait
> additions. I wonder why Linux detects that. You can probably get around
> it for now by either passing idle=poll as a boot parameter, or compile
> your kernel for plain i586 for instance.
It seems that with -kernel-kqemu, the guest kernel is seeing the CPUID
of the host machine rather than the one normally generated by qemu.
The workarounds you suggest do work--thanks for your help. However,
ideally kqemu would trap the CPUID instruction and mask the feature
bits for unsupported CPU features.
--Ed
- Re: [Qemu-devel] kqemu version 1.3.0pre5, (continued)
- Re: [Qemu-devel] kqemu version 1.3.0pre5, Marco Matthies, 2006/03/28
- Re: [Qemu-devel] kqemu version 1.3.0pre5, andrzej zaborowski, 2006/03/28
- Re: [Qemu-devel] kqemu version 1.3.0pre5, Paul Brook, 2006/03/28
- Re: [Qemu-devel] kqemu version 1.3.0pre5, Bruno Abinader, 2006/03/28
- Re: [Qemu-devel] kqemu version 1.3.0pre5, Brad Campbell, 2006/03/28
- Re: [Qemu-devel] kqemu version 1.3.0pre5, Jernej Simončič, 2006/03/28
- Re: [Qemu-devel] kqemu version 1.3.0pre5, Kazu, 2006/03/28
Re: [Qemu-devel] kqemu version 1.3.0pre5, Ed Swierk, 2006/03/28
Re: [Qemu-devel] kqemu version 1.3.0pre5, Christian MICHON, 2006/03/31