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From: "Cédric Le Goater" <clg@kaod.org>
To: Paul Mackerras <paulus@ozlabs.org>
Cc: kvm-ppc@vger.kernel.org,
	David Gibson <david@gibson.dropbear.id.au>,
	kvm@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v4 10/17] KVM: PPC: Book3S HV: XIVE: add get/set accessors for the VP XIVE state
Date: Tue, 9 Apr 2019 11:18:08 +0200	[thread overview]
Message-ID: <a81828ff-54a9-91cb-9ca4-a88fa819e469@kaod.org> (raw)
In-Reply-To: <20190409061916.GA3429@blackberry>

On 4/9/19 8:19 AM, Paul Mackerras wrote:
> On Wed, Mar 20, 2019 at 09:37:44AM +0100, Cédric Le Goater wrote:
>> The state of the thread interrupt management registers needs to be
>> collected for migration. These registers are cached under the
>> 'xive_saved_state.w01' field of the VCPU when the VPCU context is
>> pulled from the HW thread. An OPAL call retrieves the backup of the
>> IPB register in the underlying XIVE NVT structure and merges it in the
>> KVM state.
> 
> Since you're adding a new one_reg identifier value, you need to update
> the list in Documentation/virtual/kvm/api.txt.

yes. I missed that file.

I will keep a description of the VP state register layout in the device 
documentation file : 

  Documentation/virtual/kvm/devices/xive.txt

I don't think it belongs to kvm/api.txt file.

Thanks,

C. 

WARNING: multiple messages have this Message-ID (diff)
From: "Cédric Le Goater" <clg@kaod.org>
To: Paul Mackerras <paulus@ozlabs.org>
Cc: linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org,
	kvm-ppc@vger.kernel.org,
	David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [PATCH v4 10/17] KVM: PPC: Book3S HV: XIVE: add get/set accessors for the VP XIVE state
Date: Tue, 9 Apr 2019 11:18:08 +0200	[thread overview]
Message-ID: <a81828ff-54a9-91cb-9ca4-a88fa819e469@kaod.org> (raw)
In-Reply-To: <20190409061916.GA3429@blackberry>

On 4/9/19 8:19 AM, Paul Mackerras wrote:
> On Wed, Mar 20, 2019 at 09:37:44AM +0100, Cédric Le Goater wrote:
>> The state of the thread interrupt management registers needs to be
>> collected for migration. These registers are cached under the
>> 'xive_saved_state.w01' field of the VCPU when the VPCU context is
>> pulled from the HW thread. An OPAL call retrieves the backup of the
>> IPB register in the underlying XIVE NVT structure and merges it in the
>> KVM state.
> 
> Since you're adding a new one_reg identifier value, you need to update
> the list in Documentation/virtual/kvm/api.txt.

yes. I missed that file.

I will keep a description of the VP state register layout in the device 
documentation file : 

  Documentation/virtual/kvm/devices/xive.txt

I don't think it belongs to kvm/api.txt file.

Thanks,

C. 

WARNING: multiple messages have this Message-ID (diff)
From: "Cédric Le Goater" <clg@kaod.org>
To: Paul Mackerras <paulus@ozlabs.org>
Cc: kvm-ppc@vger.kernel.org,
	David Gibson <david@gibson.dropbear.id.au>,
	kvm@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v4 10/17] KVM: PPC: Book3S HV: XIVE: add get/set accessors for the VP XIVE state
Date: Tue, 09 Apr 2019 09:18:08 +0000	[thread overview]
Message-ID: <a81828ff-54a9-91cb-9ca4-a88fa819e469@kaod.org> (raw)
In-Reply-To: <20190409061916.GA3429@blackberry>

On 4/9/19 8:19 AM, Paul Mackerras wrote:
> On Wed, Mar 20, 2019 at 09:37:44AM +0100, Cédric Le Goater wrote:
>> The state of the thread interrupt management registers needs to be
>> collected for migration. These registers are cached under the
>> 'xive_saved_state.w01' field of the VCPU when the VPCU context is
>> pulled from the HW thread. An OPAL call retrieves the backup of the
>> IPB register in the underlying XIVE NVT structure and merges it in the
>> KVM state.
> 
> Since you're adding a new one_reg identifier value, you need to update
> the list in Documentation/virtual/kvm/api.txt.

yes. I missed that file.

I will keep a description of the VP state register layout in the device 
documentation file : 

  Documentation/virtual/kvm/devices/xive.txt

I don't think it belongs to kvm/api.txt file.

Thanks,

C. 

  reply	other threads:[~2019-04-09  9:27 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-20  8:37 [PATCH v4 00/17] KVM: PPC: Book3S HV: add XIVE native exploitation mode Cédric Le Goater
2019-03-20  8:37 ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 01/17] powerpc/xive: add OPAL extensions for the XIVE native exploitation support Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 02/17] KVM: PPC: Book3S HV: add a new KVM device for the XIVE native exploitation mode Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 03/17] KVM: PPC: Book3S HV: XIVE: introduce a new capability KVM_CAP_PPC_IRQ_XIVE Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 04/17] KVM: PPC: Book3S HV: XIVE: add a control to initialize a source Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 05/17] KVM: PPC: Book3S HV: XIVE: add a control to configure " Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 06/17] KVM: PPC: Book3S HV: XIVE: add controls for the EQ configuration Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20 23:09   ` David Gibson
2019-03-20 23:09     ` David Gibson
2019-03-21  8:48     ` Cédric Le Goater
2019-03-21  8:48       ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 07/17] KVM: PPC: Book3S HV: XIVE: add a global reset control Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 08/17] KVM: PPC: Book3S HV: XIVE: add a control to sync the sources Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 09/17] KVM: PPC: Book3S HV: XIVE: add a control to dirty the XIVE EQ pages Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 10/17] KVM: PPC: Book3S HV: XIVE: add get/set accessors for the VP XIVE state Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-04-09  6:19   ` Paul Mackerras
2019-04-09  6:19     ` Paul Mackerras
2019-04-09  6:19     ` Paul Mackerras
2019-04-09  9:18     ` Cédric Le Goater [this message]
2019-04-09  9:18       ` Cédric Le Goater
2019-04-09  9:18       ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 11/17] KVM: introduce a 'mmap' method for KVM devices Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 12/17] KVM: PPC: Book3S HV: XIVE: add a TIMA mapping Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 13/17] KVM: PPC: Book3S HV: XIVE: add a mapping for the source ESB pages Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 14/17] KVM: PPC: Book3S HV: XIVE: add passthrough support Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 15/17] KVM: PPC: Book3S HV: XIVE: activate XIVE exploitation mode Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 16/17] KVM: introduce a KVM_DESTROY_DEVICE ioctl Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-04-09 14:12   ` Cédric Le Goater
2019-04-09 14:12     ` Cédric Le Goater
2019-04-09 14:12     ` Cédric Le Goater
2019-03-20  8:37 ` [PATCH v4 17/17] KVM: PPC: Book3S HV: XIVE: clear the vCPU interrupt presenters Cédric Le Goater
2019-03-20  8:37   ` Cédric Le Goater
2019-04-09 14:13 ` [RFC PATCH v4.1 16/17] KVM: PPC: Book3S HV: XIVE: introduce a xive_devices array under the VM Cédric Le Goater
2019-04-09 14:13   ` Cédric Le Goater
2019-04-09 14:13   ` [RFC PATCH v4 17/17] KVM: PPC: Book3S HV: XIVE: introduce a 'release' device operation Cédric Le Goater
2019-04-09 14:13     ` Cédric Le Goater
2019-04-15  3:32     ` David Gibson
2019-04-15  3:32       ` David Gibson
2019-04-15  9:25       ` Paul Mackerras
2019-04-15  9:25         ` Paul Mackerras
2019-04-15 13:56         ` Cédric Le Goater
2019-04-15 13:56           ` Cédric Le Goater
2019-04-15 13:48       ` Cédric Le Goater
2019-04-15 13:48         ` Cédric Le Goater
2019-04-17  2:05         ` David Gibson
2019-04-17  2:05           ` David Gibson
2019-04-15  3:26   ` [RFC PATCH v4.1 16/17] KVM: PPC: Book3S HV: XIVE: introduce a xive_devices array under the VM David Gibson
2019-04-15  3:26     ` David Gibson

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