On Mon, Jan 11, 2016 at 04:13:12PM +, Peter Maydell wrote:
> On 11 January 2016 at 16:09, Andrew Jones wrote:
> > I think the save/restore case is where I always flip to seeing it as a
> > bunch of separate per cpu devices. It would feel better to me to
> > save/restore the cpu-gic registers t
On Mon, Jan 11, 2016 at 04:29:03PM +, Peter Maydell wrote:
> On 11 January 2016 at 16:21, Andrew Jones wrote:
> > On Mon, Jan 11, 2016 at 05:09:27PM +0100, Andrew Jones wrote:
> >> On Mon, Jan 11, 2016 at 04:09:29PM +0100, Christoffer Dall wrote:
> >> > Are vcpu ids already exposed to userspac
On 11 January 2016 at 16:21, Andrew Jones wrote:
> On Mon, Jan 11, 2016 at 05:09:27PM +0100, Andrew Jones wrote:
>> On Mon, Jan 11, 2016 at 04:09:29PM +0100, Christoffer Dall wrote:
>> > Are vcpu ids already exposed to userspace (beyond the stupid
>> > KVM_IRQ_LINE) ioctl and as such we're bound t
On Mon, Jan 11, 2016 at 05:09:27PM +0100, Andrew Jones wrote:
> On Mon, Jan 11, 2016 at 04:09:29PM +0100, Christoffer Dall wrote:
> > Are vcpu ids already exposed to userspace (beyond the stupid
> > KVM_IRQ_LINE) ioctl and as such we're bound to whatever upper limit and
> > format they have?
>
> T
On 11 January 2016 at 16:09, Andrew Jones wrote:
> I think the save/restore case is where I always flip to seeing it as a
> bunch of separate per cpu devices. It would feel better to me to
> save/restore the cpu-gic registers the same way we do all other cpu
> registers.
>From QEMU's point of vie
On Mon, Jan 11, 2016 at 04:09:29PM +0100, Christoffer Dall wrote:
> On Mon, Jan 11, 2016 at 03:07:17PM +0100, Andrew Jones wrote:
> > On Sat, Jan 09, 2016 at 03:03:39PM +, Marc Zyngier wrote:
> > > On Sat, 9 Jan 2016 13:29:56 +0100
> > > Christoffer Dall wrote:
> > >
> > > > On Thu, Jan 07, 2
On Mon, Jan 11, 2016 at 03:07:17PM +0100, Andrew Jones wrote:
> On Sat, Jan 09, 2016 at 03:03:39PM +, Marc Zyngier wrote:
> > On Sat, 9 Jan 2016 13:29:56 +0100
> > Christoffer Dall wrote:
> >
> > > On Thu, Jan 07, 2016 at 09:36:47PM +0100, Andrew Jones wrote:
> > > > On Thu, Jan 07, 2016 at 0
On Sat, Jan 09, 2016 at 03:03:39PM +, Marc Zyngier wrote:
> On Sat, 9 Jan 2016 13:29:56 +0100
> Christoffer Dall wrote:
>
> > On Thu, Jan 07, 2016 at 09:36:47PM +0100, Andrew Jones wrote:
> > > On Thu, Jan 07, 2016 at 02:56:15PM +, Peter Maydell wrote:
> > > > On 7 January 2016 at 14:49,
On 2016/1/11 19:52, Andrew Jones wrote:
On Mon, Jan 11, 2016 at 08:59:38AM +, Marc Zyngier wrote:
>On 11/01/16 08:45, Shannon Zhao wrote:
> >
> >
> >On 2016/1/9 23:03, Marc Zyngier wrote:
> >>On Sat, 9 Jan 2016 13:29:56 +0100
> >>Christoffer Dall wrote:
> >>
> On Thu, Jan 07, 2016
On Mon, Jan 11, 2016 at 08:59:38AM +, Marc Zyngier wrote:
> On 11/01/16 08:45, Shannon Zhao wrote:
> >
> >
> > On 2016/1/9 23:03, Marc Zyngier wrote:
> >> On Sat, 9 Jan 2016 13:29:56 +0100
> >> Christoffer Dall wrote:
> >>
> On Thu, Jan 07, 2016 at 09:36:47PM +0100, Andrew Jones wrote:
On 11/01/16 08:45, Shannon Zhao wrote:
>
>
> On 2016/1/9 23:03, Marc Zyngier wrote:
>> On Sat, 9 Jan 2016 13:29:56 +0100
>> Christoffer Dall wrote:
>>
On Thu, Jan 07, 2016 at 09:36:47PM +0100, Andrew Jones wrote:
>> On Thu, Jan 07, 2016 at 02:56:15PM +, Peter Maydell wrote:
On 2016/1/9 23:03, Marc Zyngier wrote:
> On Sat, 9 Jan 2016 13:29:56 +0100
> Christoffer Dall wrote:
>
>> > On Thu, Jan 07, 2016 at 09:36:47PM +0100, Andrew Jones wrote:
>>> > > On Thu, Jan 07, 2016 at 02:56:15PM +, Peter Maydell wrote:
> > > On 7 January 2016 at 14:49, Shannon Zhao
On Sat, 9 Jan 2016 13:29:56 +0100
Christoffer Dall wrote:
> On Thu, Jan 07, 2016 at 09:36:47PM +0100, Andrew Jones wrote:
> > On Thu, Jan 07, 2016 at 02:56:15PM +, Peter Maydell wrote:
> > > On 7 January 2016 at 14:49, Shannon Zhao wrote:
> > > >>> +
> > > >>> +Groups:
> > > >>> + KVM_DEV_A
On Thu, Jan 07, 2016 at 09:36:47PM +0100, Andrew Jones wrote:
> On Thu, Jan 07, 2016 at 02:56:15PM +, Peter Maydell wrote:
> > On 7 January 2016 at 14:49, Shannon Zhao wrote:
> > >>> +
> > >>> +Groups:
> > >>> + KVM_DEV_ARM_PMU_GRP_IRQ
> > >>> + Attributes:
> > >>> +The attr field of kvm
On Fri, Jan 08, 2016 at 04:20:28PM +0100, Andrew Jones wrote:
> On Fri, Jan 08, 2016 at 12:22:13PM +0100, Andrew Jones wrote:
> > When we want more than 256 vcpus we'll need a new kvm-irq-line ioctl,
> > but, as for the arm devices, we could avoid the problem completely by
> > extending the SET/GET
On Fri, Jan 08, 2016 at 12:22:13PM +0100, Andrew Jones wrote:
> When we want more than 256 vcpus we'll need a new kvm-irq-line ioctl,
> but, as for the arm devices, we could avoid the problem completely by
> extending the SET/GET_DEVICE_ATTR ioctl to also be a vcpu ioctl.
Replying to myself on thi
On 2016/1/8 20:56, Peter Maydell wrote:
On 8 January 2016 at 12:15, Shannon Zhao wrote:
Firstly, userspace will call kvm device ioctl to create the PMU device, if
it fails it will return an error.
Secondly, userspace will call SET_DEVICE_ATTR ioctl to configure the PMU irq
number. If the irq
On 8 January 2016 at 12:15, Shannon Zhao wrote:
> Firstly, userspace will call kvm device ioctl to create the PMU device, if
> it fails it will return an error.
> Secondly, userspace will call SET_DEVICE_ATTR ioctl to configure the PMU irq
> number. If the irq is invalid, this will return an error
On 2016/1/8 18:24, Peter Maydell wrote:
On 8 January 2016 at 03:06, Shannon Zhao wrote:
>
>
>On 2016/1/7 22:56, Peter Maydell wrote:
>+ Errors:
> >>>+-ENXIO: Unsupported attribute group
> >>>+-EBUSY: The PMU overflow interrupt is already set
> >>>+-ENODEV: Getti
On Fri, Jan 08, 2016 at 10:53:03AM +0800, Shannon Zhao wrote:
>
>
> On 2016/1/8 4:18, Andrew Jones wrote:
> > On Tue, Dec 22, 2015 at 04:08:15PM +0800, Shannon Zhao wrote:
> >> From: Shannon Zhao
> >>
> >> Add a new kvm device type KVM_DEV_TYPE_ARM_PMU_V3 for ARM PMU. Implement
> >> the kvm_devi
On 8 January 2016 at 03:06, Shannon Zhao wrote:
>
>
> On 2016/1/7 22:56, Peter Maydell wrote:
> + Errors:
> >>> +-ENXIO: Unsupported attribute group
> >>> +-EBUSY: The PMU overflow interrupt is already set
> >>> +-ENODEV: Getting the PMU overflow interrupt number while
On 2016/1/7 22:56, Peter Maydell wrote:
+ Errors:
>>> +-ENXIO: Unsupported attribute group
>>> +-EBUSY: The PMU overflow interrupt is already set
>>> +-ENODEV: Getting the PMU overflow interrupt number while it's not
>>> set
>>> +-EINVAL: Invalid vc
On 2016/1/8 4:18, Andrew Jones wrote:
> On Tue, Dec 22, 2015 at 04:08:15PM +0800, Shannon Zhao wrote:
>> From: Shannon Zhao
>>
>> Add a new kvm device type KVM_DEV_TYPE_ARM_PMU_V3 for ARM PMU. Implement
>> the kvm_device_ops for it.
>>
>> Signed-off-by: Shannon Zhao
>> ---
>> Documentation/vir
On Thu, Jan 07, 2016 at 02:56:15PM +, Peter Maydell wrote:
> On 7 January 2016 at 14:49, Shannon Zhao wrote:
> >>> +
> >>> +Groups:
> >>> + KVM_DEV_ARM_PMU_GRP_IRQ
> >>> + Attributes:
> >>> +The attr field of kvm_device_attr encodes one value:
> >>> +bits: | 63 32 | 31
On 2016/1/7 22:36, Peter Maydell wrote:
> On 22 December 2015 at 08:08, Shannon Zhao wrote:
>> From: Shannon Zhao
>>
>> Add a new kvm device type KVM_DEV_TYPE_ARM_PMU_V3 for ARM PMU. Implement
>> the kvm_device_ops for it.
>>
>> Signed-off-by: Shannon Zhao
>> ---
>> Documentation/virtual/kvm/
On 22 December 2015 at 08:08, Shannon Zhao wrote:
> From: Shannon Zhao
>
> Add a new kvm device type KVM_DEV_TYPE_ARM_PMU_V3 for ARM PMU. Implement
> the kvm_device_ops for it.
>
> Signed-off-by: Shannon Zhao
> ---
> Documentation/virtual/kvm/devices/arm-pmu.txt | 24 +
> arch/arm64/includ
From: Shannon Zhao
Add a new kvm device type KVM_DEV_TYPE_ARM_PMU_V3 for ARM PMU. Implement
the kvm_device_ops for it.
Signed-off-by: Shannon Zhao
---
Documentation/virtual/kvm/devices/arm-pmu.txt | 24 +
arch/arm64/include/uapi/asm/kvm.h | 4 +
include/linux/kvm_host.h
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