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From: Paolo Bonzini <pbonzini@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v2 00/38] Delay destruction of memory regions to instance_finalize
Date: Tue, 17 Sep 2013 16:41:45 +0200	[thread overview]
Message-ID: <52386A29.9090908@redhat.com> (raw)
In-Reply-To: <20130917124724.GA18965@redhat.com>

Il 17/09/2013 14:47, Michael S. Tsirkin ha scritto:
> Ergo, to make sure a referenced MR does not get
> destroyed, we must make sure only finalize
> calls memory_region_destroy.
> 
> So I think this patchset should do exactly that,
> not try to move out more stuff to finalize.

Yes, this is the part of the problem that applies to all devices.

Some devices may have timers or other dynamically-allocated data that
may be used between exit and finalize.  The same applies to capabilities
such as MSI and MSI-X.  All this must also be moved to finalize, but
this can be done in separate patches.

I'll separate the series as follows:

- memory_region_destroy

- unregister_savevm

- other dynamically allocated data

- del_vm_change_state_handler

- MSI-X

- SHPC, AER and other PCI/bridge stuff

Paolo

  reply	other threads:[~2013-09-17 14:41 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-03 12:32 [Qemu-devel] [PATCH v2 00/38] Delay destruction of memory regions to instance_finalize Paolo Bonzini
2013-09-03 12:32 ` [Qemu-devel] [PATCH 01/38] qdev: document assumption that unrealize is followed by finalize Paolo Bonzini
2013-09-17  9:00   ` Michael S. Tsirkin
2013-09-03 12:32 ` [Qemu-devel] [PATCH 02/38] pci: split exit and finalize Paolo Bonzini
2013-09-17  9:16   ` Michael S. Tsirkin
2013-09-17  9:56     ` Paolo Bonzini
2013-09-17 10:23       ` Paolo Bonzini
2013-09-17 10:06   ` Michael S. Tsirkin
2013-09-03 12:32 ` [Qemu-devel] [PATCH 03/38] ac97: use instance_finalize instead of exit Paolo Bonzini
2013-09-03 12:32 ` [Qemu-devel] [PATCH 04/38] es1370: " Paolo Bonzini
2013-09-03 12:32 ` [Qemu-devel] [PATCH 05/38] hda: reclaim memory in " Paolo Bonzini
2013-09-03 12:32 ` [Qemu-devel] [PATCH 06/38] serial: " Paolo Bonzini
2013-09-03 12:32 ` [Qemu-devel] [PATCH 07/38] tpci200: use " Paolo Bonzini
2013-09-03 12:32 ` [Qemu-devel] [PATCH 08/38] pci-assign: reclaim memory in " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 09/38] ahci: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 10/38] msix: split msix_free from msix_uninit Paolo Bonzini
2013-09-17  9:21   ` Michael S. Tsirkin
2013-09-17  9:56     ` Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 11/38] cmd646: use instance_finalize instead of exit Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 12/38] ide/piix: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 13/38] ide/via: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 14/38] ivshmem: reclaim memory in " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 15/38] pci-testdev: use " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 16/38] vfio: reclaim memory in " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 17/38] e1000: use " Paolo Bonzini
2013-09-17  9:27   ` Michael S. Tsirkin
2013-09-17 10:13     ` Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 18/38] eepro100: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 19/38] ne2000: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 20/38] pcnet: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 21/38] rtl8139: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 22/38] vmxnet3: reclaim memory in " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 23/38] shpc: split shpc_free from shpc_cleanup Paolo Bonzini
2013-09-17  9:24   ` Michael S. Tsirkin
2013-09-17  9:58     ` Paolo Bonzini
2013-09-17 10:03       ` Michael S. Tsirkin
2013-09-03 12:33 ` [Qemu-devel] [PATCH 24/38] pci_bridge: split pci_bridge_free from pci_bridge_exitfn Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 25/38] pcie_aer: pcie_aer_exit really frees stuff Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 26/38] pci_bridge: reclaim memory in instance_finalize instead of exit Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 27/38] ioh4320: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 28/38] xio3130-downstream: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 29/38] xio3130-upstream: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 30/38] pcie: do not recreate mmcfg I/O region, use an alias instead Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 31/38] esp: use instance_finalize instead of exit Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 32/38] lsi: " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 33/38] pvscsi: reclaim memory in " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 34/38] usb-uhci: use " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 35/38] virtio-pci: reclaim memory in " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 36/38] wdt_i6300esb: use " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 37/38] xen_pt: reclaim memory in " Paolo Bonzini
2013-09-03 12:33 ` [Qemu-devel] [PATCH 38/38] tpm: move add/del_subregion to realize/unrealize Paolo Bonzini
2013-09-16 16:35 ` [Qemu-devel] [PATCH v2 00/38] Delay destruction of memory regions to instance_finalize Paolo Bonzini
2013-09-17  6:44 ` Wenchao Xia
2013-09-17 10:01   ` Paolo Bonzini
2013-09-20  6:16     ` Wenchao Xia
2013-09-17  9:31 ` Michael S. Tsirkin
2013-09-17 12:47 ` Michael S. Tsirkin
2013-09-17 14:41   ` Paolo Bonzini [this message]
2013-09-17 14:45     ` Michael S. Tsirkin
2013-09-17 15:41       ` Paolo Bonzini
2013-09-17 15:59         ` Michael S. Tsirkin
2013-09-17 16:13           ` Paolo Bonzini
2013-09-17 16:29             ` Michael S. Tsirkin
2013-09-17 16:58               ` Paolo Bonzini
2013-09-17 17:07                 ` Michael S. Tsirkin
2013-09-17 17:16                   ` Paolo Bonzini
2013-09-17 17:26                     ` Michael S. Tsirkin
2013-09-17 19:07                       ` Paolo Bonzini
2013-09-17 19:51                         ` Michael S. Tsirkin
2013-09-17 22:02                           ` Paolo Bonzini
2013-09-18  5:48                             ` Michael S. Tsirkin
2013-09-18  7:40                               ` Paolo Bonzini
2013-09-18  8:41                                 ` Michael S. Tsirkin
2013-09-18 11:26                                   ` Paolo Bonzini
2013-09-18 11:56                                     ` Peter Maydell
2013-09-18 13:11                                       ` Paolo Bonzini
2013-09-18 13:19                                         ` Peter Maydell
2013-09-18 13:28                                           ` Paolo Bonzini

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