Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-13 Thread Gleb Natapov
On Thu, Sep 13, 2012 at 02:56:33PM +0200, Peter Lieven wrote: > On 13.09.2012 14:42, Gleb Natapov wrote: > >On Thu, Sep 13, 2012 at 02:05:23PM +0200, Peter Lieven wrote: > >>On 13.09.2012 10:05, Gleb Natapov wrote: > >>>On Thu, Sep 13, 2012 at 10:00:26AM +0200, Paolo Bonzini wrote: > Il 13/09/2

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-13 Thread Peter Lieven
On 13.09.2012 14:42, Gleb Natapov wrote: On Thu, Sep 13, 2012 at 02:05:23PM +0200, Peter Lieven wrote: On 13.09.2012 10:05, Gleb Natapov wrote: On Thu, Sep 13, 2012 at 10:00:26AM +0200, Paolo Bonzini wrote: Il 13/09/2012 09:57, Gleb Natapov ha scritto: #rdmsr -0 0x194 00011100 #rdmsr

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-13 Thread Gleb Natapov
On Thu, Sep 13, 2012 at 02:05:23PM +0200, Peter Lieven wrote: > On 13.09.2012 10:05, Gleb Natapov wrote: > >On Thu, Sep 13, 2012 at 10:00:26AM +0200, Paolo Bonzini wrote: > >>Il 13/09/2012 09:57, Gleb Natapov ha scritto: > >>>#rdmsr -0 0x194 > >>>00011100 > >>>#rdmsr -0 0xce > >

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-13 Thread Peter Lieven
On 13.09.2012 10:05, Gleb Natapov wrote: On Thu, Sep 13, 2012 at 10:00:26AM +0200, Paolo Bonzini wrote: Il 13/09/2012 09:57, Gleb Natapov ha scritto: #rdmsr -0 0x194 00011100 #rdmsr -0 0xce 0c0004011103 Yes, that can help implementing it in KVM. But without a spec to understand wh

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-13 Thread Gleb Natapov
On Thu, Sep 13, 2012 at 10:00:26AM +0200, Paolo Bonzini wrote: > Il 13/09/2012 09:57, Gleb Natapov ha scritto: > >>> > > > >>> > > #rdmsr -0 0x194 > >>> > > 00011100 > >>> > > #rdmsr -0 0xce > >>> > > 0c0004011103 > >> > > >> > Yes, that can help implementing it in KVM. But without a

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-13 Thread Paolo Bonzini
Il 13/09/2012 09:57, Gleb Natapov ha scritto: >>> > > >>> > > #rdmsr -0 0x194 >>> > > 00011100 >>> > > #rdmsr -0 0xce >>> > > 0c0004011103 >> > >> > Yes, that can help implementing it in KVM. But without a spec to >> > understand what the bits actually mean, it's just as risky... >>

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-13 Thread Gleb Natapov
On Thu, Sep 13, 2012 at 09:55:06AM +0200, Paolo Bonzini wrote: > 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 >

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-13 Thread Paolo Bonzini
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 > 00011100 > #rdmsr -0 0xce > 0c0004011103 Yes, that can help implementi

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-13 Thread Peter Lieven
On 10.09.2012 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=

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Peter Lieven
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 | xxd it only works without the skip. but

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Peter Lieven
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=/d

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Avi Kivity
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=$((0x194)) bs=8 count=1 | xxd > dd if=/dev/cpu/0/msr skip=$((0

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Gleb Natapov
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 | xxd > > it only works without the skip. but the msr device returns all

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Paolo Bonzini
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 | xxd > it 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

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Avi Kivity
On 09/10/2012 02:29 PM, Paolo Bonzini wrote: > Il 10/09/2012 13:06, Peter Lieven ha scritto: >> >> qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_entry: vcpu 0 >> qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_exit: reason MSR_READ rip >> 0x11478 info 0 0 >> qemu-kvm-1.0.1-5107 [007] 410771.148000: kv

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Peter Lieven
On 09/10/12 13:29, Paolo Bonzini wrote: Il 10/09/2012 13:06, Peter Lieven ha scritto: qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_entry: vcpu 0 qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_exit: reason MSR_READ rip 0x11478 info 0 0 qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_msr: msr_read 194

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Peter Lieven
On 09/10/12 13:29, Paolo Bonzini wrote: Il 10/09/2012 13:06, Peter Lieven ha scritto: qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_entry: vcpu 0 qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_exit: reason MSR_READ rip 0x11478 info 0 0 qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_msr: msr_read 194

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Paolo Bonzini
Il 10/09/2012 13:06, Peter Lieven ha scritto: > > qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_entry: vcpu 0 > qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_exit: reason MSR_READ rip > 0x11478 info 0 0 > qemu-kvm-1.0.1-5107 [007] 410771.148000: kvm_msr: msr_read 194 = 0x0 (#GP) > qemu-kvm-1.0.1-510

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-10 Thread Peter Lieven
On 09/06/12 16:58, Avi Kivity wrote: On 08/22/2012 06:06 PM, Peter Lieven wrote: Hi, has anyone ever tested to run memtest with -cpu host flag passed to qemu-kvm? For me it resets when probing the chipset. With -cpu qemu64 it works just fine. Maybe this is specific to memtest, but it might be

Re: [Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-09-06 Thread Avi Kivity
On 08/22/2012 06:06 PM, Peter Lieven wrote: > Hi, > > has anyone ever tested to run memtest with -cpu host flag passed to > qemu-kvm? > For me it resets when probing the chipset. With -cpu qemu64 it works > just fine. > > Maybe this is specific to memtest, but it might be sth that can happen > in

[Qemu-devel] memtest 4.20+ does not work with -cpu host

2012-08-22 Thread Peter Lieven
Hi, has anyone ever tested to run memtest with -cpu host flag passed to qemu-kvm? For me it resets when probing the chipset. With -cpu qemu64 it works just fine. Maybe this is specific to memtest, but it might be sth that can happen in other applications to. Any thoughts? Thanks, Peter