* [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot
@ 2011-11-24 18:03 Luiz Capitulino
2011-11-25 14:12 ` Alon Levy
2011-11-27 13:04 ` Avi Kivity
0 siblings, 2 replies; 8+ messages in thread
From: Luiz Capitulino @ 2011-11-24 18:03 UTC (permalink / raw)
To: Avi Kivity; +Cc: qemu-devel
Avi,
I'm getting the following panic very early on boot on a F16 VM (latest
qemu.git head 40897c9):
[ 0.068018] Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (-1 vs 0)
[ 0.070006] Pid: 1, comm: swapper Not tainted 3.1.0-7.fc16.x86_64 #1
[ 0.071004] Call Trace:
[ 0.072035] [<ffffffff814acb8e>] panic+0x91/0x1a5
[ 0.073027] [<ffffffff81b831ca>] native_smp_prepare_cpus+0x24c/0x300
[ 0.075010] [<ffffffff81b76c0d>] kernel_init+0x85/0x158
[ 0.075993] [<ffffffff810527eb>] ? schedule_tail+0x27/0x6c
[ 0.076017] [<ffffffff814be5f4>] kernel_thread_helper+0x4/0x10
[ 0.077022] [<ffffffff81b76b88>] ? start_kernel+0x3b6/0x3b6
[ 0.078009] [<ffffffff814be5f0>] ? gs_change+0x13/0x13
After some debugging and I found out that this only happens when '-cpu host'
is passed, and according to git bisect it's caused by the following commit:
commit 66e3dd9282141b5ae75637c9676002cf3ceeb988
Author: Avi Kivity <avi@redhat.com>
Date: Wed Nov 9 15:44:36 2011 +0200
i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID
Not sure if this is important, but here's procinfo information about
one of my host's cpus:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(TM)2 Duo CPU T9600 @ 2.80GHz
stepping : 6
cpu MHz : 2801.000
cache size : 6144 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm tpr_shadow vnmi flexpriority
bogomips : 5585.87
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot
2011-11-24 18:03 [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot Luiz Capitulino
@ 2011-11-25 14:12 ` Alon Levy
2011-11-25 14:37 ` Luiz Capitulino
2011-11-27 13:04 ` Avi Kivity
1 sibling, 1 reply; 8+ messages in thread
From: Alon Levy @ 2011-11-25 14:12 UTC (permalink / raw)
To: Luiz Capitulino; +Cc: Avi Kivity, qemu-devel
On Thu, Nov 24, 2011 at 04:03:55PM -0200, Luiz Capitulino wrote:
> Avi,
>
I have the same panic and the same bisection result. It doesn't happen
with recent (3.2.0 rc1 and rc3) kernels.
> I'm getting the following panic very early on boot on a F16 VM (latest
> qemu.git head 40897c9):
>
> [ 0.068018] Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (-1 vs 0)
> [ 0.070006] Pid: 1, comm: swapper Not tainted 3.1.0-7.fc16.x86_64 #1
> [ 0.071004] Call Trace:
> [ 0.072035] [<ffffffff814acb8e>] panic+0x91/0x1a5
> [ 0.073027] [<ffffffff81b831ca>] native_smp_prepare_cpus+0x24c/0x300
> [ 0.075010] [<ffffffff81b76c0d>] kernel_init+0x85/0x158
> [ 0.075993] [<ffffffff810527eb>] ? schedule_tail+0x27/0x6c
> [ 0.076017] [<ffffffff814be5f4>] kernel_thread_helper+0x4/0x10
> [ 0.077022] [<ffffffff81b76b88>] ? start_kernel+0x3b6/0x3b6
> [ 0.078009] [<ffffffff814be5f0>] ? gs_change+0x13/0x13
>
> After some debugging and I found out that this only happens when '-cpu host'
> is passed, and according to git bisect it's caused by the following commit:
>
> commit 66e3dd9282141b5ae75637c9676002cf3ceeb988
> Author: Avi Kivity <avi@redhat.com>
> Date: Wed Nov 9 15:44:36 2011 +0200
>
> i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID
>
> Not sure if this is important, but here's procinfo information about
> one of my host's cpus:
>
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 23
> model name : Intel(R) Core(TM)2 Duo CPU T9600 @ 2.80GHz
> stepping : 6
> cpu MHz : 2801.000
> cache size : 6144 KB
> physical id : 0
> siblings : 2
> core id : 0
> cpu cores : 2
> apicid : 0
> initial apicid : 0
> fpu : yes
> fpu_exception : yes
> cpuid level : 10
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm tpr_shadow vnmi flexpriority
> bogomips : 5585.87
> clflush size : 64
> cache_alignment : 64
> address sizes : 36 bits physical, 48 bits virtual
> power management:
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot
2011-11-25 14:12 ` Alon Levy
@ 2011-11-25 14:37 ` Luiz Capitulino
2011-11-25 15:44 ` Alon Levy
0 siblings, 1 reply; 8+ messages in thread
From: Luiz Capitulino @ 2011-11-25 14:37 UTC (permalink / raw)
To: Alon Levy; +Cc: Avi Kivity, qemu-devel
On Fri, 25 Nov 2011 16:12:37 +0200
Alon Levy <alevy@redhat.com> wrote:
> On Thu, Nov 24, 2011 at 04:03:55PM -0200, Luiz Capitulino wrote:
> > Avi,
> >
>
> I have the same panic and the same bisection result. It doesn't happen
> with recent (3.2.0 rc1 and rc3) kernels.
Would be nice to test a recent kernel with 66e3dd9 reverted. It'll be funny
if it fails :)
>
> > I'm getting the following panic very early on boot on a F16 VM (latest
> > qemu.git head 40897c9):
> >
> > [ 0.068018] Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (-1 vs 0)
> > [ 0.070006] Pid: 1, comm: swapper Not tainted 3.1.0-7.fc16.x86_64 #1
> > [ 0.071004] Call Trace:
> > [ 0.072035] [<ffffffff814acb8e>] panic+0x91/0x1a5
> > [ 0.073027] [<ffffffff81b831ca>] native_smp_prepare_cpus+0x24c/0x300
> > [ 0.075010] [<ffffffff81b76c0d>] kernel_init+0x85/0x158
> > [ 0.075993] [<ffffffff810527eb>] ? schedule_tail+0x27/0x6c
> > [ 0.076017] [<ffffffff814be5f4>] kernel_thread_helper+0x4/0x10
> > [ 0.077022] [<ffffffff81b76b88>] ? start_kernel+0x3b6/0x3b6
> > [ 0.078009] [<ffffffff814be5f0>] ? gs_change+0x13/0x13
> >
> > After some debugging and I found out that this only happens when '-cpu host'
> > is passed, and according to git bisect it's caused by the following commit:
> >
> > commit 66e3dd9282141b5ae75637c9676002cf3ceeb988
> > Author: Avi Kivity <avi@redhat.com>
> > Date: Wed Nov 9 15:44:36 2011 +0200
> >
> > i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID
> >
> > Not sure if this is important, but here's procinfo information about
> > one of my host's cpus:
> >
> > processor : 0
> > vendor_id : GenuineIntel
> > cpu family : 6
> > model : 23
> > model name : Intel(R) Core(TM)2 Duo CPU T9600 @ 2.80GHz
> > stepping : 6
> > cpu MHz : 2801.000
> > cache size : 6144 KB
> > physical id : 0
> > siblings : 2
> > core id : 0
> > cpu cores : 2
> > apicid : 0
> > initial apicid : 0
> > fpu : yes
> > fpu_exception : yes
> > cpuid level : 10
> > wp : yes
> > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm tpr_shadow vnmi flexpriority
> > bogomips : 5585.87
> > clflush size : 64
> > cache_alignment : 64
> > address sizes : 36 bits physical, 48 bits virtual
> > power management:
> >
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot
2011-11-25 14:37 ` Luiz Capitulino
@ 2011-11-25 15:44 ` Alon Levy
0 siblings, 0 replies; 8+ messages in thread
From: Alon Levy @ 2011-11-25 15:44 UTC (permalink / raw)
To: Luiz Capitulino; +Cc: Avi Kivity, qemu-devel
On Fri, Nov 25, 2011 at 12:37:04PM -0200, Luiz Capitulino wrote:
> On Fri, 25 Nov 2011 16:12:37 +0200
> Alon Levy <alevy@redhat.com> wrote:
>
> > On Thu, Nov 24, 2011 at 04:03:55PM -0200, Luiz Capitulino wrote:
> > > Avi,
> > >
> >
> > I have the same panic and the same bisection result. It doesn't happen
> > with recent (3.2.0 rc1 and rc3) kernels.
>
> Would be nice to test a recent kernel with 66e3dd9 reverted. It'll be funny
> if it fails :)
It doesn't - a recent kernel doesn't care. I'm using 3.2.0-rc3
(f1e652b).
With 66e3dd9 reverted:
3.2.0 (66e3dd9 but also an rc1 commit I used before rebasing yesterday)
passes
3.1.0-5 passes
3.1.1-1 passes
Normally (not reverted):
3.2.0 (66e3dd9) passes
3.1.0-5 fails
3.1.1-1 fails
>
> >
> > > I'm getting the following panic very early on boot on a F16 VM (latest
> > > qemu.git head 40897c9):
> > >
> > > [ 0.068018] Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (-1 vs 0)
> > > [ 0.070006] Pid: 1, comm: swapper Not tainted 3.1.0-7.fc16.x86_64 #1
> > > [ 0.071004] Call Trace:
> > > [ 0.072035] [<ffffffff814acb8e>] panic+0x91/0x1a5
> > > [ 0.073027] [<ffffffff81b831ca>] native_smp_prepare_cpus+0x24c/0x300
> > > [ 0.075010] [<ffffffff81b76c0d>] kernel_init+0x85/0x158
> > > [ 0.075993] [<ffffffff810527eb>] ? schedule_tail+0x27/0x6c
> > > [ 0.076017] [<ffffffff814be5f4>] kernel_thread_helper+0x4/0x10
> > > [ 0.077022] [<ffffffff81b76b88>] ? start_kernel+0x3b6/0x3b6
> > > [ 0.078009] [<ffffffff814be5f0>] ? gs_change+0x13/0x13
> > >
> > > After some debugging and I found out that this only happens when '-cpu host'
> > > is passed, and according to git bisect it's caused by the following commit:
> > >
> > > commit 66e3dd9282141b5ae75637c9676002cf3ceeb988
> > > Author: Avi Kivity <avi@redhat.com>
> > > Date: Wed Nov 9 15:44:36 2011 +0200
> > >
> > > i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID
> > >
> > > Not sure if this is important, but here's procinfo information about
> > > one of my host's cpus:
> > >
> > > processor : 0
> > > vendor_id : GenuineIntel
> > > cpu family : 6
> > > model : 23
> > > model name : Intel(R) Core(TM)2 Duo CPU T9600 @ 2.80GHz
> > > stepping : 6
> > > cpu MHz : 2801.000
> > > cache size : 6144 KB
> > > physical id : 0
> > > siblings : 2
> > > core id : 0
> > > cpu cores : 2
> > > apicid : 0
> > > initial apicid : 0
> > > fpu : yes
> > > fpu_exception : yes
> > > cpuid level : 10
> > > wp : yes
> > > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm tpr_shadow vnmi flexpriority
> > > bogomips : 5585.87
> > > clflush size : 64
> > > cache_alignment : 64
> > > address sizes : 36 bits physical, 48 bits virtual
> > > power management:
> > >
> >
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot
2011-11-24 18:03 [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot Luiz Capitulino
2011-11-25 14:12 ` Alon Levy
@ 2011-11-27 13:04 ` Avi Kivity
2011-11-27 17:13 ` Anthony Liguori
1 sibling, 1 reply; 8+ messages in thread
From: Avi Kivity @ 2011-11-27 13:04 UTC (permalink / raw)
To: Luiz Capitulino, Anthony Liguori; +Cc: qemu-devel
On 11/24/2011 08:03 PM, Luiz Capitulino wrote:
> Avi,
>
> I'm getting the following panic very early on boot on a F16 VM (latest
> qemu.git head 40897c9):
>
> [ 0.068018] Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (-1 vs 0)
> [ 0.070006] Pid: 1, comm: swapper Not tainted 3.1.0-7.fc16.x86_64 #1
> [ 0.071004] Call Trace:
> [ 0.072035] [<ffffffff814acb8e>] panic+0x91/0x1a5
> [ 0.073027] [<ffffffff81b831ca>] native_smp_prepare_cpus+0x24c/0x300
> [ 0.075010] [<ffffffff81b76c0d>] kernel_init+0x85/0x158
> [ 0.075993] [<ffffffff810527eb>] ? schedule_tail+0x27/0x6c
> [ 0.076017] [<ffffffff814be5f4>] kernel_thread_helper+0x4/0x10
> [ 0.077022] [<ffffffff81b76b88>] ? start_kernel+0x3b6/0x3b6
> [ 0.078009] [<ffffffff814be5f0>] ? gs_change+0x13/0x13
>
> After some debugging and I found out that this only happens when '-cpu host'
> is passed, and according to git bisect it's caused by the following commit:
>
> commit 66e3dd9282141b5ae75637c9676002cf3ceeb988
> Author: Avi Kivity <avi@redhat.com>
> Date: Wed Nov 9 15:44:36 2011 +0200
>
> i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID
>
Strange, since it looks like cpuid 1 (ebx) returns the correct APIC ID.
Anthony, I think we should revert that commit and refactor cpuid for
1.1. The logic is spread over too many places which makes it hard to
reason about.
--
error compiling committee.c: too many arguments to function
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot
2011-11-27 13:04 ` Avi Kivity
@ 2011-11-27 17:13 ` Anthony Liguori
2011-11-28 14:00 ` Luiz Capitulino
0 siblings, 1 reply; 8+ messages in thread
From: Anthony Liguori @ 2011-11-27 17:13 UTC (permalink / raw)
To: Avi Kivity; +Cc: qemu-devel, Luiz Capitulino
On 11/27/2011 07:04 AM, Avi Kivity wrote:
> On 11/24/2011 08:03 PM, Luiz Capitulino wrote:
>> Avi,
>>
>> I'm getting the following panic very early on boot on a F16 VM (latest
>> qemu.git head 40897c9):
>>
>> [ 0.068018] Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (-1 vs 0)
>> [ 0.070006] Pid: 1, comm: swapper Not tainted 3.1.0-7.fc16.x86_64 #1
>> [ 0.071004] Call Trace:
>> [ 0.072035] [<ffffffff814acb8e>] panic+0x91/0x1a5
>> [ 0.073027] [<ffffffff81b831ca>] native_smp_prepare_cpus+0x24c/0x300
>> [ 0.075010] [<ffffffff81b76c0d>] kernel_init+0x85/0x158
>> [ 0.075993] [<ffffffff810527eb>] ? schedule_tail+0x27/0x6c
>> [ 0.076017] [<ffffffff814be5f4>] kernel_thread_helper+0x4/0x10
>> [ 0.077022] [<ffffffff81b76b88>] ? start_kernel+0x3b6/0x3b6
>> [ 0.078009] [<ffffffff814be5f0>] ? gs_change+0x13/0x13
>>
>> After some debugging and I found out that this only happens when '-cpu host'
>> is passed, and according to git bisect it's caused by the following commit:
>>
>> commit 66e3dd9282141b5ae75637c9676002cf3ceeb988
>> Author: Avi Kivity<avi@redhat.com>
>> Date: Wed Nov 9 15:44:36 2011 +0200
>>
>> i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID
>>
>
> Strange, since it looks like cpuid 1 (ebx) returns the correct APIC ID.
>
> Anthony, I think we should revert that commit and refactor cpuid for
> 1.1. The logic is spread over too many places which makes it hard to
> reason about.
Ack.
Regards,
Anthony Liguori
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot
2011-11-27 17:13 ` Anthony Liguori
@ 2011-11-28 14:00 ` Luiz Capitulino
2011-11-28 14:11 ` Anthony Liguori
0 siblings, 1 reply; 8+ messages in thread
From: Luiz Capitulino @ 2011-11-28 14:00 UTC (permalink / raw)
To: Anthony Liguori; +Cc: Avi Kivity, qemu-devel
On Sun, 27 Nov 2011 11:13:59 -0600
Anthony Liguori <anthony@codemonkey.ws> wrote:
> On 11/27/2011 07:04 AM, Avi Kivity wrote:
> > On 11/24/2011 08:03 PM, Luiz Capitulino wrote:
> >> Avi,
> >>
> >> I'm getting the following panic very early on boot on a F16 VM (latest
> >> qemu.git head 40897c9):
> >>
> >> [ 0.068018] Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (-1 vs 0)
> >> [ 0.070006] Pid: 1, comm: swapper Not tainted 3.1.0-7.fc16.x86_64 #1
> >> [ 0.071004] Call Trace:
> >> [ 0.072035] [<ffffffff814acb8e>] panic+0x91/0x1a5
> >> [ 0.073027] [<ffffffff81b831ca>] native_smp_prepare_cpus+0x24c/0x300
> >> [ 0.075010] [<ffffffff81b76c0d>] kernel_init+0x85/0x158
> >> [ 0.075993] [<ffffffff810527eb>] ? schedule_tail+0x27/0x6c
> >> [ 0.076017] [<ffffffff814be5f4>] kernel_thread_helper+0x4/0x10
> >> [ 0.077022] [<ffffffff81b76b88>] ? start_kernel+0x3b6/0x3b6
> >> [ 0.078009] [<ffffffff814be5f0>] ? gs_change+0x13/0x13
> >>
> >> After some debugging and I found out that this only happens when '-cpu host'
> >> is passed, and according to git bisect it's caused by the following commit:
> >>
> >> commit 66e3dd9282141b5ae75637c9676002cf3ceeb988
> >> Author: Avi Kivity<avi@redhat.com>
> >> Date: Wed Nov 9 15:44:36 2011 +0200
> >>
> >> i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID
> >>
> >
> > Strange, since it looks like cpuid 1 (ebx) returns the correct APIC ID.
> >
> > Anthony, I think we should revert that commit and refactor cpuid for
> > 1.1. The logic is spread over too many places which makes it hard to
> > reason about.
>
> Ack.
Anthony, are you going to revert it yourself or do you prefer a patch?
I can provide it if needed...
>
> Regards,
>
> Anthony Liguori
>
> >
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot
2011-11-28 14:00 ` Luiz Capitulino
@ 2011-11-28 14:11 ` Anthony Liguori
0 siblings, 0 replies; 8+ messages in thread
From: Anthony Liguori @ 2011-11-28 14:11 UTC (permalink / raw)
To: Luiz Capitulino; +Cc: Avi Kivity, qemu-devel
On 11/28/2011 08:00 AM, Luiz Capitulino wrote:
> On Sun, 27 Nov 2011 11:13:59 -0600
> Anthony Liguori<anthony@codemonkey.ws> wrote:
>
>> On 11/27/2011 07:04 AM, Avi Kivity wrote:
>>> On 11/24/2011 08:03 PM, Luiz Capitulino wrote:
>>>> Avi,
>>>>
>>>> I'm getting the following panic very early on boot on a F16 VM (latest
>>>> qemu.git head 40897c9):
>>>>
>>>> [ 0.068018] Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (-1 vs 0)
>>>> [ 0.070006] Pid: 1, comm: swapper Not tainted 3.1.0-7.fc16.x86_64 #1
>>>> [ 0.071004] Call Trace:
>>>> [ 0.072035] [<ffffffff814acb8e>] panic+0x91/0x1a5
>>>> [ 0.073027] [<ffffffff81b831ca>] native_smp_prepare_cpus+0x24c/0x300
>>>> [ 0.075010] [<ffffffff81b76c0d>] kernel_init+0x85/0x158
>>>> [ 0.075993] [<ffffffff810527eb>] ? schedule_tail+0x27/0x6c
>>>> [ 0.076017] [<ffffffff814be5f4>] kernel_thread_helper+0x4/0x10
>>>> [ 0.077022] [<ffffffff81b76b88>] ? start_kernel+0x3b6/0x3b6
>>>> [ 0.078009] [<ffffffff814be5f0>] ? gs_change+0x13/0x13
>>>>
>>>> After some debugging and I found out that this only happens when '-cpu host'
>>>> is passed, and according to git bisect it's caused by the following commit:
>>>>
>>>> commit 66e3dd9282141b5ae75637c9676002cf3ceeb988
>>>> Author: Avi Kivity<avi@redhat.com>
>>>> Date: Wed Nov 9 15:44:36 2011 +0200
>>>>
>>>> i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID
>>>>
>>>
>>> Strange, since it looks like cpuid 1 (ebx) returns the correct APIC ID.
>>>
>>> Anthony, I think we should revert that commit and refactor cpuid for
>>> 1.1. The logic is spread over too many places which makes it hard to
>>> reason about.
>>
>> Ack.
>
> Anthony, are you going to revert it yourself or do you prefer a patch?
> I can provide it if needed...
I'll revert it.
Regards,
Anthony Liguori
>
>>
>> Regards,
>>
>> Anthony Liguori
>>
>>>
>>
>
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2011-11-28 14:12 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
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2011-11-24 18:03 [Qemu-devel] [BUG 1.0] -cpu host breaks linux guest boot Luiz Capitulino
2011-11-25 14:12 ` Alon Levy
2011-11-25 14:37 ` Luiz Capitulino
2011-11-25 15:44 ` Alon Levy
2011-11-27 13:04 ` Avi Kivity
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