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Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host |
Date: |
Thu, 13 Sep 2012 09:55:06 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120828 Thunderbird/15.0 |
Il 13/09/2012 09:53, Peter Lieven ha scritto:
>>>>
>>> rdmsr returns it cannot read those MSRs. regardless if I use -cpu host
>>> or -cpu qemu64.
>> On the host.
>>
>>
> did you get my output?
>
> #rdmsr -0 0x194
> 0000000000011100
> #rdmsr -0 0xce
> 00000c0004011103
Yes, that can help implementing it in KVM. But without a spec to
understand what the bits actually mean, it's just as risky...
Peter, do you have any idea where to get the spec of the memory
controller MSRs in Nehalem and newer processors? Apparently, memtest is
using them (and in particular 0x194) to find the speed of the FSB, or
something like that.
Paolo
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, (continued)
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Peter Lieven, 2012/09/10
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Paolo Bonzini, 2012/09/10
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Peter Lieven, 2012/09/10
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Peter Lieven, 2012/09/10
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Paolo Bonzini, 2012/09/10
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Gleb Natapov, 2012/09/10
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Peter Lieven, 2012/09/10
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Avi Kivity, 2012/09/10
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Peter Lieven, 2012/09/10
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Peter Lieven, 2012/09/13
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host,
Paolo Bonzini <=
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Gleb Natapov, 2012/09/13
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Paolo Bonzini, 2012/09/13
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Gleb Natapov, 2012/09/13
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Peter Lieven, 2012/09/13
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Gleb Natapov, 2012/09/13
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Peter Lieven, 2012/09/13
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Gleb Natapov, 2012/09/13
- Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host, Avi Kivity, 2012/09/10