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From: AKASHI Takahiro <takahiro.akashi@linaro.org>
To: Will Deacon <will.deacon@arm.com>, Geoff Levand <geoff@infradead.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	vikrams@codeaurora.org, Marc Zyngier <marc.zyngier@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	kexec@lists.infradead.org, shankerd@codeaurora.org,
	Christoffer Dall <christoffer.dall@linaro.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v12 04/16] arm64: kvm: allows kvm cpu hotplug
Date: Tue, 15 Dec 2015 17:48:22 +0900	[thread overview]
Message-ID: <566FD3D6.2040605@linaro.org> (raw)
In-Reply-To: <20151211163144.GK18828@arm.com>

Will,

On 12/12/2015 01:31 AM, Will Deacon wrote:
> On Thu, Dec 10, 2015 at 10:31:48AM -0800, Geoff Levand wrote:
>> On Thu, 2015-12-03 at 13:58 +0000, Marc Zyngier wrote:
>>> Indeed, this is completely broken (I just reproduced the issue on a
>>> model).
>>
>> There are users out there that want kexec/kdump support.  I think we
>> should remove this patch from the series, replace it with a temporary
>> Kconfig conditional that allows only one of KVM or kexec to be enabled,
>> and merge kexec and kdump support in for 4.5.  This will satisfy users
>> who need kexec but not KVM, like kexec based bootloaders.  Once this
>> KVM hot plug patch is fixed we then merge it, either for 4.5 or 4.6,
>> depending on the timing.
>>
>> I'll prepare and post a v13 series that does the above.
>
> I'm not really keen on merging this based on a "temporary" Kconfig change
> with a promise to have it resolved in the future. Given how long this
> series has been floating around already, I'm not filled with confidence
> at the prospect of waiting for a fixup patch after it's been merged.
>
> Please address the outstanding review comments before reposting.

I'm working hard on addressing Marc's comment on kvm cpu hotplug, and so
can you please review other *main* part of kexec/kdump patches?
Or can I think that 'no comments' is a good sign of your acceptance?

Thanks,
-Takahiro AKASHI


> Will
>

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

WARNING: multiple messages have this Message-ID (diff)
From: takahiro.akashi@linaro.org (AKASHI Takahiro)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v12 04/16] arm64: kvm: allows kvm cpu hotplug
Date: Tue, 15 Dec 2015 17:48:22 +0900	[thread overview]
Message-ID: <566FD3D6.2040605@linaro.org> (raw)
In-Reply-To: <20151211163144.GK18828@arm.com>

Will,

On 12/12/2015 01:31 AM, Will Deacon wrote:
> On Thu, Dec 10, 2015 at 10:31:48AM -0800, Geoff Levand wrote:
>> On Thu, 2015-12-03 at 13:58 +0000, Marc Zyngier wrote:
>>> Indeed, this is completely broken (I just reproduced the issue on a
>>> model).
>>
>> There are users out there that want kexec/kdump support.  I think we
>> should remove this patch from the series, replace it with a temporary
>> Kconfig conditional that allows only one of KVM or kexec to be enabled,
>> and merge kexec and kdump support in for 4.5.  This will satisfy users
>> who need kexec but not KVM, like kexec based bootloaders.  Once this
>> KVM hot plug patch is fixed we then merge it, either for 4.5 or 4.6,
>> depending on the timing.
>>
>> I'll prepare and post a v13 series that does the above.
>
> I'm not really keen on merging this based on a "temporary" Kconfig change
> with a promise to have it resolved in the future. Given how long this
> series has been floating around already, I'm not filled with confidence
> at the prospect of waiting for a fixup patch after it's been merged.
>
> Please address the outstanding review comments before reposting.

I'm working hard on addressing Marc's comment on kvm cpu hotplug, and so
can you please review other *main* part of kexec/kdump patches?
Or can I think that 'no comments' is a good sign of your acceptance?

Thanks,
-Takahiro AKASHI


> Will
>

  reply	other threads:[~2015-12-15  8:48 UTC|newest]

Thread overview: 178+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-24 22:25 [PATCH v12 00/16] arm64 kexec kernel patches v12 Geoff Levand
2015-11-24 22:25 ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 03/16] arm64: Add new hcall HVC_CALL_FUNC Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 02/16] arm64: Convert hcalls to use HVC immediate value Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 05/16] arm64: Add back cpu_reset routines Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-27 14:19   ` Marc Zyngier
2015-11-27 14:19     ` Marc Zyngier
2015-11-30  5:28     ` Pratyush Anand
2015-11-30  5:28       ` Pratyush Anand
2015-11-30 10:40       ` Marc Zyngier
2015-11-30 10:40         ` Marc Zyngier
2015-12-02 22:57         ` Geoff Levand
2015-12-02 22:57           ` Geoff Levand
2015-12-03  9:32           ` Will Deacon
2015-12-03  9:32             ` Will Deacon
2015-12-10  0:49             ` Geoff Levand
2015-12-10  0:49               ` Geoff Levand
2015-12-10 10:17               ` Will Deacon
2015-12-10 10:17                 ` Will Deacon
2015-11-30 20:03     ` Geoff Levand
2015-11-30 20:03       ` Geoff Levand
2015-12-01  9:38       ` Marc Zyngier
2015-12-01  9:38         ` Marc Zyngier
2015-11-24 22:25 ` [PATCH v12 04/16] arm64: kvm: allows kvm cpu hotplug Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-27 13:54   ` Marc Zyngier
2015-11-27 13:54     ` Marc Zyngier
2015-12-02 22:40   ` Ashwin Chaugule
2015-12-02 22:40     ` Ashwin Chaugule
2015-12-03 13:55     ` Ashwin Chaugule
2015-12-03 13:55       ` Ashwin Chaugule
2015-12-03 13:58     ` Marc Zyngier
2015-12-03 13:58       ` Marc Zyngier
2015-12-10 18:31       ` Geoff Levand
2015-12-10 18:31         ` Geoff Levand
2015-12-11 16:31         ` Will Deacon
2015-12-11 16:31           ` Will Deacon
2015-12-15  8:48           ` AKASHI Takahiro [this message]
2015-12-15  8:48             ` AKASHI Takahiro
2015-12-10 18:44       ` Shi, Yang
2015-12-10 18:44         ` Shi, Yang
2015-12-11  8:09         ` AKASHI Takahiro
2015-12-11  8:09           ` AKASHI Takahiro
2015-12-14 18:00           ` Shi, Yang
2015-12-14 18:00             ` Shi, Yang
2015-12-11  8:06       ` AKASHI Takahiro
2015-12-11  8:06         ` AKASHI Takahiro
2015-12-11 13:00         ` Shanker Donthineni
2015-12-11 13:00           ` Shanker Donthineni
2015-12-11 16:28         ` Marc Zyngier
2015-12-11 16:28           ` Marc Zyngier
2015-12-11 18:00           ` Shanker Donthineni
2015-12-11 18:00             ` Shanker Donthineni
2015-12-11 18:11             ` Marc Zyngier
2015-12-11 18:11               ` Marc Zyngier
2015-12-11 19:11               ` Shanker Donthineni
2015-12-11 19:11                 ` Shanker Donthineni
2015-12-11 20:13           ` Ashwin Chaugule
2015-12-11 20:13             ` Ashwin Chaugule
2015-12-14  7:33           ` AKASHI Takahiro
2015-12-14  7:33             ` AKASHI Takahiro
2015-12-14 17:33             ` Marc Zyngier
2015-12-14 17:33               ` Marc Zyngier
2015-12-15  7:51               ` AKASHI Takahiro
2015-12-15  7:51                 ` AKASHI Takahiro
2015-12-15  8:45                 ` Marc Zyngier
2015-12-15  8:45                   ` Marc Zyngier
2015-12-15  9:51                   ` AKASHI Takahiro
2015-12-15  9:51                     ` AKASHI Takahiro
2015-12-15 10:13                     ` Marc Zyngier
2015-12-15 10:13                       ` Marc Zyngier
2015-11-24 22:25 ` [PATCH v12 07/16] Revert "arm64: remove dead code" Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 01/16] arm64: Fold proc-macros.S into assembler.h Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 06/16] Revert "arm64: mm: remove unused cpu_set_idmap_tcr_t0sz function" Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 09/16] arm64/kexec: Add pr_devel output Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-12-15 17:15   ` Will Deacon
2015-12-15 17:15     ` Will Deacon
2015-12-16  0:45     ` Geoff Levand
2015-12-16  0:45       ` Geoff Levand
2015-12-16  0:46   ` [PATCH v12.4] arm64/kexec: Add pr_debug output Geoff Levand
2015-12-16  0:46     ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 12/16] arm64: kdump: implement machine_crash_shutdown() Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-27 14:39   ` Marc Zyngier
2015-11-27 14:39     ` Marc Zyngier
2015-12-10 11:34     ` AKASHI Takahiro
2015-12-10 11:34       ` AKASHI Takahiro
2015-12-10 11:44       ` Marc Zyngier
2015-12-10 11:44         ` Marc Zyngier
2015-12-10 12:55         ` AKASHI Takahiro
2015-12-10 12:55           ` AKASHI Takahiro
2015-12-10 13:43           ` Marc Zyngier
2015-12-10 13:43             ` Marc Zyngier
2015-12-03  4:15   ` Pratyush Anand
2015-12-03  4:15     ` Pratyush Anand
2015-12-10 11:42     ` AKASHI Takahiro
2015-12-10 11:42       ` AKASHI Takahiro
2015-12-10 11:50       ` Pratyush Anand
2015-12-10 11:50         ` Pratyush Anand
2015-11-24 22:25 ` [PATCH v12 08/16] arm64/kexec: Add core kexec support Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-27 13:13   ` Pratyush Anand
2015-11-27 13:13     ` Pratyush Anand
2015-11-30 18:51     ` Geoff Levand
2015-11-30 18:51       ` Geoff Levand
2015-12-01  2:16       ` Pratyush Anand
2015-12-01  2:16         ` Pratyush Anand
2015-12-01 18:32         ` Azriel Samson
2015-12-01 18:32           ` Azriel Samson
2015-12-02 22:49           ` Geoff Levand
2015-12-02 22:49             ` Geoff Levand
2015-12-03  4:37             ` Azriel Samson
2015-12-03  4:37               ` Azriel Samson
2015-12-03 19:56               ` Geoff Levand
2015-12-03 19:56                 ` Geoff Levand
2015-12-04  0:39                 ` Azriel Samson
2015-12-04  0:39                   ` Azriel Samson
2015-12-04  3:54                   ` Pratyush Anand
2015-12-04  3:54                     ` Pratyush Anand
2015-12-07 18:47                     ` Geoff Levand
2015-12-07 18:47                       ` Geoff Levand
2015-12-03  6:09             ` Pratyush Anand
2015-12-03  6:09               ` Pratyush Anand
2015-12-01 19:03         ` Mark Rutland
2015-12-01 19:03           ` Mark Rutland
2015-12-02 21:08           ` Geoff Levand
2015-12-02 21:08             ` Geoff Levand
2015-12-03 16:06             ` Mark Rutland
2015-12-03 16:06               ` Mark Rutland
2015-12-15 18:29   ` Will Deacon
2015-12-15 18:29     ` Will Deacon
2015-12-16  0:14     ` Geoff Levand
2015-12-16  0:14       ` Geoff Levand
2015-12-16  7:18       ` Pratyush Anand
2015-12-16  7:18         ` Pratyush Anand
2015-12-16  9:30         ` James Morse
2015-12-16  9:30           ` James Morse
2015-12-16 10:32           ` Pratyush Anand
2015-12-16 10:32             ` Pratyush Anand
2015-12-16  0:14   ` [PATCH v12.4] " Geoff Levand
2015-12-16  0:14     ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 16/16] arm64: kdump: relax BUG_ON() if more than one cpus are still active Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-12-15 17:05   ` Will Deacon
2015-12-15 17:05     ` Will Deacon
2015-12-16  5:51     ` AKASHI Takahiro
2015-12-16  5:51       ` AKASHI Takahiro
2015-11-24 22:25 ` [PATCH v12 15/16] arm64: kdump: enable kdump in the arm64 defconfig Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 11/16] arm64: kdump: reserve memory for crash dump kernel Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-12-15 17:29   ` Will Deacon
2015-12-15 17:29     ` Will Deacon
2015-12-16  5:19     ` AKASHI Takahiro
2015-12-16  5:19       ` AKASHI Takahiro
2015-12-16  7:36       ` Pratyush Anand
2015-12-16  7:36         ` Pratyush Anand
2015-11-24 22:25 ` [PATCH v12 14/16] arm64: kdump: update a kernel doc Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-12-15 17:17   ` Will Deacon
2015-12-15 17:17     ` Will Deacon
2015-12-16  5:48     ` AKASHI Takahiro
2015-12-16  5:48       ` AKASHI Takahiro
2015-11-24 22:25 ` [PATCH v12 10/16] arm64/kexec: Enable kexec in the arm64 defconfig Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-11-24 22:25 ` [PATCH v12 13/16] arm64: kdump: add kdump support Geoff Levand
2015-11-24 22:25   ` Geoff Levand
2015-12-15 17:45   ` Will Deacon
2015-12-15 17:45     ` Will Deacon
2015-12-16  5:41     ` AKASHI Takahiro
2015-12-16  5:41       ` AKASHI Takahiro

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