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From: | Peter Lieven |
Subject: | Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host |
Date: | Mon, 10 Sep 2012 14:38:39 +0200 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Thunderbird/3.1.16 |
On 09/10/12 14:32, Avi Kivity wrote:
On 09/10/2012 03:29 PM, Peter Lieven wrote:On 09/10/12 14:21, Gleb Natapov wrote:On Mon, Sep 10, 2012 at 02:15:49PM +0200, Paolo Bonzini wrote:Il 10/09/2012 13:52, Peter Lieven ha scritto:dd if=/dev/cpu/0/msr skip=$((0x194)) bs=8 count=1 | xxd dd if=/dev/cpu/0/msr skip=$((0xCE)) bs=8 count=1 | xxdit only works without the skip. but the msr device returns all zeroes.Hmm, the strange API of the MSR device doesn't work well with dd (dd skips to 0x194 * 8 because bs is 8. You can try this program:There is rdmsr/wrmsr in msr-tools.rdmsr returns it cannot read those MSRs. regardless if I use -cpu host or -cpu qemu64.On the host.
aaah ok: #rdmsr -0 0x194 0000000000011100 #rdmsr -0 0xce 00000c0004011103 Peter
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