Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-24 Thread Eduardo Habkost
On Tue, Jul 23, 2013 at 09:43:06PM +0200, Paolo Bonzini wrote: Il 23/07/2013 19:41, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 06:23:08PM +0200, Paolo Bonzini wrote: Il 23/07/2013 17:40, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 05:09:02PM +0200, Paolo Bonzini wrote: Il

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-24 Thread Paolo Bonzini
Il 24/07/2013 15:15, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 09:43:06PM +0200, Paolo Bonzini wrote: Il 23/07/2013 19:41, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 06:23:08PM +0200, Paolo Bonzini wrote: Il 23/07/2013 17:40, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-24 Thread Eduardo Habkost
On Wed, Jul 24, 2013 at 03:21:48PM +0200, Paolo Bonzini wrote: Il 24/07/2013 15:15, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 09:43:06PM +0200, Paolo Bonzini wrote: Il 23/07/2013 19:41, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 06:23:08PM +0200, Paolo Bonzini wrote: Il

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-23 Thread Igor Mammedov
On Mon, 22 Jul 2013 16:25:35 -0300 Eduardo Habkost ehabk...@redhat.com wrote: Bug description: QEMU currently gets all bits from GET_SUPPORTED_CPUID for CPUID leaf 0xA and passes them directly to the guest. This makes the guest ABI depend on host kernel and host CPU capabilities, and breaks

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-23 Thread Paolo Bonzini
Il 22/07/2013 21:25, Eduardo Habkost ha scritto: Bug description: QEMU currently gets all bits from GET_SUPPORTED_CPUID for CPUID leaf 0xA and passes them directly to the guest. This makes the guest ABI depend on host kernel and host CPU capabilities, and breaks live migration if we migrate

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-23 Thread Eduardo Habkost
On Tue, Jul 23, 2013 at 11:18:03AM +0200, Paolo Bonzini wrote: Il 22/07/2013 21:25, Eduardo Habkost ha scritto: Bug description: QEMU currently gets all bits from GET_SUPPORTED_CPUID for CPUID leaf 0xA and passes them directly to the guest. This makes the guest ABI depend on host kernel and

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-23 Thread Eduardo Habkost
On Tue, Jul 23, 2013 at 08:01:29AM +0200, Igor Mammedov wrote: On Mon, 22 Jul 2013 16:25:35 -0300 Eduardo Habkost ehabk...@redhat.com wrote: Bug description: QEMU currently gets all bits from GET_SUPPORTED_CPUID for CPUID leaf 0xA and passes them directly to the guest. This makes the

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-23 Thread Paolo Bonzini
Il 23/07/2013 16:13, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 11:18:03AM +0200, Paolo Bonzini wrote: Il 22/07/2013 21:25, Eduardo Habkost ha scritto: Bug description: QEMU currently gets all bits from GET_SUPPORTED_CPUID for CPUID leaf 0xA and passes them directly to the guest. This

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-23 Thread Eduardo Habkost
On Tue, Jul 23, 2013 at 05:09:02PM +0200, Paolo Bonzini wrote: Il 23/07/2013 16:13, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 11:18:03AM +0200, Paolo Bonzini wrote: Il 22/07/2013 21:25, Eduardo Habkost ha scritto: Bug description: QEMU currently gets all bits from

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-23 Thread Paolo Bonzini
Il 23/07/2013 17:40, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 05:09:02PM +0200, Paolo Bonzini wrote: Il 23/07/2013 16:13, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 11:18:03AM +0200, Paolo Bonzini wrote: Il 22/07/2013 21:25, Eduardo Habkost ha scritto: Bug description:

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-23 Thread Eduardo Habkost
On Tue, Jul 23, 2013 at 06:23:08PM +0200, Paolo Bonzini wrote: Il 23/07/2013 17:40, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 05:09:02PM +0200, Paolo Bonzini wrote: Il 23/07/2013 16:13, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 11:18:03AM +0200, Paolo Bonzini wrote: Il

Re: [Qemu-devel] [qom-cpu PATCH 2/2] i386: disable PMU passthrough mode by default

2013-07-23 Thread Paolo Bonzini
Il 23/07/2013 19:41, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 06:23:08PM +0200, Paolo Bonzini wrote: Il 23/07/2013 17:40, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013 at 05:09:02PM +0200, Paolo Bonzini wrote: Il 23/07/2013 16:13, Eduardo Habkost ha scritto: On Tue, Jul 23, 2013