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From: Marc Zyngier <marc.zyngier@arm.com>
To: AKASHI Takahiro <takahiro.akashi@linaro.org>,
	Catalin Marinas <Catalin.Marinas@arm.com>,
	Will Deacon <Will.Deacon@arm.com>,
	Mark Rutland <Mark.Rutland@arm.com>
Cc: "christoffer.dall@linaro.org" <christoffer.dall@linaro.org>,
	"geoff@infradead.org" <geoff@infradead.org>,
	"broonie@kernel.org" <broonie@kernel.org>,
	"david.griego@linaro.org" <david.griego@linaro.org>,
	"freddy77@gmail.com" <freddy77@gmail.com>,
	"kexec@lists.infradead.org" <kexec@lists.infradead.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linaro-kernel@lists.linaro.org" <linaro-kernel@lists.linaro.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v5 1/2] arm64: kvm: allows kvm cpu hotplug
Date: Tue, 09 Jun 2015 19:00:00 +0100	[thread overview]
Message-ID: <557729A0.1030700@arm.com> (raw)
In-Reply-To: <1432877920-12527-2-git-send-email-takahiro.akashi@linaro.org>

Hi Takahiro,

On 29/05/15 06:38, AKASHI Takahiro wrote:
> The current kvm implementation on arm64 does cpu-specific initialization
> at system boot, and has no way to gracefully shutdown a core in terms of
> kvm. This prevents, especially, kexec from rebooting the system on a boot
> core in EL2.
> 
> This patch adds a cpu tear-down function and also puts an existing cpu-init
> code into a separate function, kvm_arch_hardware_disable() and
> kvm_arch_hardware_enable() respectively.
> We don't need arm64-specific cpu hotplug hook any more.
> 
> Since this patch modifies common part of code between arm and arm64, one
> stub definition, __cpu_reset_hyp_mode(), is added on arm side to avoid
> compiling errors.
> 
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>

This is starting to look good. Any chance you or Geoff could repost the
whole series? This would help getting a better view of the whole thing,
and hopefully put it on track for 4.3.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

WARNING: multiple messages have this Message-ID (diff)
From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 1/2] arm64: kvm: allows kvm cpu hotplug
Date: Tue, 09 Jun 2015 19:00:00 +0100	[thread overview]
Message-ID: <557729A0.1030700@arm.com> (raw)
In-Reply-To: <1432877920-12527-2-git-send-email-takahiro.akashi@linaro.org>

Hi Takahiro,

On 29/05/15 06:38, AKASHI Takahiro wrote:
> The current kvm implementation on arm64 does cpu-specific initialization
> at system boot, and has no way to gracefully shutdown a core in terms of
> kvm. This prevents, especially, kexec from rebooting the system on a boot
> core in EL2.
> 
> This patch adds a cpu tear-down function and also puts an existing cpu-init
> code into a separate function, kvm_arch_hardware_disable() and
> kvm_arch_hardware_enable() respectively.
> We don't need arm64-specific cpu hotplug hook any more.
> 
> Since this patch modifies common part of code between arm and arm64, one
> stub definition, __cpu_reset_hyp_mode(), is added on arm side to avoid
> compiling errors.
> 
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>

This is starting to look good. Any chance you or Geoff could repost the
whole series? This would help getting a better view of the whole thing,
and hopefully put it on track for 4.3.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <marc.zyngier@arm.com>
To: AKASHI Takahiro <takahiro.akashi@linaro.org>,
	Catalin Marinas <Catalin.Marinas@arm.com>,
	Will Deacon <Will.Deacon@arm.com>,
	Mark Rutland <Mark.Rutland@arm.com>
Cc: "linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linaro-kernel@lists.linaro.org" <linaro-kernel@lists.linaro.org>,
	"geoff@infradead.org" <geoff@infradead.org>,
	"kexec@lists.infradead.org" <kexec@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"broonie@kernel.org" <broonie@kernel.org>,
	"david.griego@linaro.org" <david.griego@linaro.org>,
	"christoffer.dall@linaro.org" <christoffer.dall@linaro.org>,
	"freddy77@gmail.com" <freddy77@gmail.com>
Subject: Re: [PATCH v5 1/2] arm64: kvm: allows kvm cpu hotplug
Date: Tue, 09 Jun 2015 19:00:00 +0100	[thread overview]
Message-ID: <557729A0.1030700@arm.com> (raw)
In-Reply-To: <1432877920-12527-2-git-send-email-takahiro.akashi@linaro.org>

Hi Takahiro,

On 29/05/15 06:38, AKASHI Takahiro wrote:
> The current kvm implementation on arm64 does cpu-specific initialization
> at system boot, and has no way to gracefully shutdown a core in terms of
> kvm. This prevents, especially, kexec from rebooting the system on a boot
> core in EL2.
> 
> This patch adds a cpu tear-down function and also puts an existing cpu-init
> code into a separate function, kvm_arch_hardware_disable() and
> kvm_arch_hardware_enable() respectively.
> We don't need arm64-specific cpu hotplug hook any more.
> 
> Since this patch modifies common part of code between arm and arm64, one
> stub definition, __cpu_reset_hyp_mode(), is added on arm side to avoid
> compiling errors.
> 
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>

This is starting to look good. Any chance you or Geoff could repost the
whole series? This would help getting a better view of the whole thing,
and hopefully put it on track for 4.3.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

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

  reply	other threads:[~2015-06-09 18:00 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-29  5:38 [PATCH v5 0/2] arm64: kvm: reset hyp context for kexec AKASHI Takahiro
2015-05-29  5:38 ` AKASHI Takahiro
2015-05-29  5:38 ` AKASHI Takahiro
2015-05-29  5:38 ` [PATCH v5 1/2] arm64: kvm: allows kvm cpu hotplug AKASHI Takahiro
2015-05-29  5:38   ` AKASHI Takahiro
2015-05-29  5:38   ` AKASHI Takahiro
2015-06-09 18:00   ` Marc Zyngier [this message]
2015-06-09 18:00     ` Marc Zyngier
2015-06-09 18:00     ` Marc Zyngier
2015-07-06 14:53     ` Marc Zyngier
2015-07-06 14:53       ` Marc Zyngier
2015-07-06 14:53       ` Marc Zyngier
2015-07-06 16:57       ` Geoff Levand
2015-07-06 16:57         ` Geoff Levand
2015-07-06 16:57         ` Geoff Levand
2015-07-07  7:43         ` AKASHI Takahiro
2015-07-07  7:43           ` AKASHI Takahiro
2015-07-07  7:43           ` AKASHI Takahiro
2015-07-07  7:46           ` Marc Zyngier
2015-07-07  7:46             ` Marc Zyngier
2015-07-07  7:46             ` Marc Zyngier
2015-10-12 13:28   ` James Morse
2015-10-12 13:28     ` James Morse
2015-10-12 13:28     ` James Morse
2015-10-13  5:38     ` AKASHI Takahiro
2015-10-13  5:38       ` AKASHI Takahiro
2015-10-13  5:38       ` AKASHI Takahiro
2015-10-13 10:43       ` James Morse
2015-10-13 10:43         ` James Morse
2015-10-13 10:43         ` James Morse
2015-10-15 10:12         ` AKASHI Takahiro
2015-10-15 10:12           ` AKASHI Takahiro
2015-10-15 10:12           ` AKASHI Takahiro
2015-05-29  5:38 ` [PATCH v5 2/2] arm64: kvm: remove !KEXEC dependency AKASHI Takahiro
2015-05-29  5:38   ` AKASHI Takahiro
2015-05-29  5:38   ` AKASHI Takahiro

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