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From: boris.ostrovsky@oracle.com
To: Anchal Agarwal <anchalag@amazon.com>,
	tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	hpa@zytor.com, x86@kernel.org, jgross@suse.com,
	linux-pm@vger.kernel.org, linux-mm@kvack.org, kamatam@amazon.com,
	sstabellini@kernel.org, konrad.wilk@oracle.com,
	roger.pau@citrix.com, axboe@kernel.dk, davem@davemloft.net,
	rjw@rjwysocki.net, len.brown@intel.com, pavel@ucw.cz,
	peterz@infradead.org, eduval@amazon.com, sblbir@amazon.com,
	xen-devel@lists.xenproject.org, vkuznets@redhat.com,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	dwmw@amazon.co.uk, benh@kernel.crashing.org
Subject: Re: [PATCH v3 04/11] x86/xen: add system core suspend and resume callbacks
Date: Sun, 13 Sep 2020 13:25:23 -0400	[thread overview]
Message-ID: <286ac56d-7fd2-66d5-bfcb-6a329afca3d6@oracle.com> (raw)
In-Reply-To: <6b86a4bf71ee3e3e9b0bb00f594a4edc85da19a9.1598042152.git.anchalag@amazon.com>


On 8/21/20 6:27 PM, Anchal Agarwal wrote:
> From: Munehisa Kamata <kamatam@amazon.com>
>
> Add Xen PVHVM specific system core callbacks for PM
> hibernation support. The callbacks suspend and resume
> Xen primitives like shared_info, pvclock and grant table.
> These syscore_ops are specifically for domU hibernation.
> xen_suspend() calls syscore_suspend() during Xen suspend
> operation however, during xen suspend lock_system_sleep()
> lock is taken and thus system cannot trigger hibernation.
> These system core callbacks will be called only from the
> hibernation context.


Well, they can be called from Xen suspend too, which is why you have the
checks in the beginning.


-boris




  reply	other threads:[~2020-09-13 17:26 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-21 22:22 [PATCH v3 00/11] Fix PM hibernation in Xen guests Anchal Agarwal
2020-08-21 22:22 ` Anchal Agarwal
2020-08-21 22:25 ` [PATCH v3 01/11] xen/manage: keep track of the on-going suspend mode Anchal Agarwal
2020-08-21 22:25   ` Anchal Agarwal
2020-09-13 15:43   ` boris.ostrovsky
2020-09-14 21:47     ` Anchal Agarwal
2020-09-14 21:47       ` Anchal Agarwal
2020-09-15  0:24       ` boris.ostrovsky
2020-09-15 18:00         ` Anchal Agarwal
2020-09-15 18:00           ` Anchal Agarwal
2020-09-15 19:58           ` boris.ostrovsky
2020-09-21 21:54             ` Anchal Agarwal
2020-09-21 21:54               ` Anchal Agarwal
2020-09-22 16:18               ` boris.ostrovsky
2020-09-22 23:17                 ` Anchal Agarwal
2020-09-22 23:17                   ` Anchal Agarwal
2020-09-25 19:04                   ` Anchal Agarwal
2020-09-25 19:04                     ` Anchal Agarwal
2020-09-25 20:02                     ` boris.ostrovsky
2020-09-25 22:28                       ` Anchal Agarwal
2020-09-25 22:28                         ` Anchal Agarwal
2020-09-28 18:49                         ` boris.ostrovsky
2020-09-30 21:29                           ` Anchal Agarwal
2020-10-01 12:43                             ` boris.ostrovsky
2021-05-21  5:26                               ` Anchal Agarwal
2021-05-25 22:23                                 ` Boris Ostrovsky
2021-05-26  4:40                                   ` Anchal Agarwal
2021-05-26 18:29                                     ` Boris Ostrovsky
2021-05-28 21:50                                       ` Anchal Agarwal
2021-06-01 14:18                                         ` Boris Ostrovsky
2021-06-02 19:37                                           ` Anchal Agarwal
2021-06-03 20:11                                             ` Boris Ostrovsky
2021-06-03 23:27                                               ` Anchal Agarwal
2021-06-04  1:49                                                 ` Boris Ostrovsky
2020-09-13 17:07   ` boris.ostrovsky
2020-08-21 22:26 ` [PATCH v3 02/11] xenbus: add freeze/thaw/restore callbacks support Anchal Agarwal
2020-08-21 22:26   ` Anchal Agarwal
2020-09-13 16:11   ` boris.ostrovsky
2020-09-15 19:56     ` Anchal Agarwal
2020-09-15 19:56       ` Anchal Agarwal
2020-08-21 22:26 ` [PATCH v3 03/11] x86/xen: Introduce new function to map HYPERVISOR_shared_info on Resume Anchal Agarwal
2020-08-21 22:26   ` Anchal Agarwal
2020-08-21 22:27 ` [PATCH v3 04/11] x86/xen: add system core suspend and resume callbacks Anchal Agarwal
2020-08-21 22:27   ` Anchal Agarwal
2020-09-13 17:25   ` boris.ostrovsky [this message]
2020-08-21 22:27 ` [PATCH v3 05/11] genirq: Shutdown irq chips in suspend/resume during hibernation Thomas Gleixner
2020-08-22  0:36   ` Thomas Gleixner
2020-08-24 17:25     ` Anchal Agarwal
2020-08-24 17:25       ` Anchal Agarwal
2020-08-25 13:20     ` Christoph Hellwig
2020-08-25 15:25       ` Thomas Gleixner
2020-08-21 22:28 ` [PATCH v3 06/11] xen-blkfront: add callbacks for PM suspend and hibernation Anchal Agarwal
2020-08-21 22:28   ` Anchal Agarwal
2020-08-21 22:29 ` [PATCH v3 07/11] xen-netfront: " Anchal Agarwal
2020-08-21 22:29   ` Anchal Agarwal
2020-08-21 22:29 ` [PATCH v3 08/11] x86/xen: save and restore steal clock during PM hibernation Anchal Agarwal
2020-08-21 22:29   ` Anchal Agarwal
2020-08-21 22:30 ` [PATCH v3 09/11] xen: Introduce wrapper for save/restore sched clock offset Anchal Agarwal
2020-08-21 22:30   ` Anchal Agarwal
2020-08-21 22:30 ` [PATCH v3 10/11] xen: Update sched clock offset to avoid system instability in hibernation Anchal Agarwal
2020-08-21 22:30   ` Anchal Agarwal
2020-09-13 17:52   ` boris.ostrovsky
2020-08-21 22:31 ` [PATCH v3 11/11] PM / hibernate: update the resume offset on SNAPSHOT_SET_SWAP_AREA Anchal Agarwal
2020-08-21 22:31   ` Anchal Agarwal
2020-08-28 18:26 ` [PATCH v3 00/11] Fix PM hibernation in Xen guests Anchal Agarwal
2020-08-28 18:26   ` Anchal Agarwal
2020-08-28 18:29   ` Rafael J. Wysocki
2020-08-28 18:29     ` Rafael J. Wysocki
2020-08-28 18:39     ` Anchal Agarwal
2020-09-11 20:44       ` Anchal Agarwal
2020-09-11 15:19 ` boris.ostrovsky

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