d82d8d21a6
-------------------------------------------------------- * Mon Jul 17 2023 Miroslav Rezanina <mrezanin@redhat.com> - 8.0.0-8 - kvm-virtio-iommu-Fix-64kB-host-page-size-VFIO-device-ass.patch [bz#2211609 bz#2211634] - kvm-virtio-iommu-Rework-the-traces-in-virtio_iommu_set_p.patch [bz#2211609 bz#2211634] - kvm-vfio-pci-add-support-for-VF-token.patch [bz#2192818] - kvm-vfio-migration-Skip-log_sync-during-migration-SETUP-.patch [bz#2192818] - kvm-vfio-pci-Static-Resizable-BAR-capability.patch [bz#2192818] - kvm-vfio-pci-Fix-a-use-after-free-issue.patch [bz#2192818] - kvm-util-vfio-helpers-Use-g_file_read_link.patch [bz#2192818] - kvm-migration-Make-all-functions-check-have-the-same-for.patch [bz#2192818] - kvm-migration-Move-migration_properties-to-options.c.patch [bz#2192818] - kvm-migration-Add-switchover-ack-capability.patch [bz#2192818] - kvm-migration-Implement-switchover-ack-logic.patch [bz#2192818] - kvm-migration-Enable-switchover-ack-capability.patch [bz#2192818] - kvm-vfio-migration-Refactor-vfio_save_block-to-return-sa.patch [bz#2192818] - kvm-vfio-migration-Store-VFIO-migration-flags-in-VFIOMig.patch [bz#2192818] - kvm-vfio-migration-Add-VFIO-migration-pre-copy-support.patch [bz#2192818] - kvm-vfio-migration-Add-support-for-switchover-ack-capabi.patch [bz#2192818] - kvm-vfio-Implement-a-common-device-info-helper.patch [bz#2192818] - kvm-hw-vfio-pci-quirks-Support-alternate-offset-for-GPUD.patch [bz#2192818] - kvm-vfio-pci-Call-vfio_prepare_kvm_msi_virq_batch-in-MSI.patch [bz#2192818] - kvm-vfio-migration-Reset-bytes_transferred-properly.patch [bz#2192818] - kvm-vfio-migration-Make-VFIO-migration-non-experimental.patch [bz#2192818] - kvm-vfio-pci-Fix-a-segfault-in-vfio_realize.patch [bz#2192818] - kvm-vfio-pci-Free-leaked-timer-in-vfio_realize-error-pat.patch [bz#2192818] - kvm-hw-vfio-pci-quirks-Sanitize-capability-pointer.patch [bz#2192818] - kvm-vfio-pci-Disable-INTx-in-vfio_realize-error-path.patch [bz#2192818] - kvm-vfio-migration-Change-vIOMMU-blocker-from-global-to-.patch [bz#2192818] - kvm-vfio-migration-Free-resources-when-vfio_migration_re.patch [bz#2192818] - kvm-vfio-migration-Remove-print-of-Migration-disabled.patch [bz#2192818] - kvm-vfio-migration-Return-bool-type-for-vfio_migration_r.patch [bz#2192818] - kvm-vfio-Fix-null-pointer-dereference-bug-in-vfio_bars_f.patch [bz#2192818] - kvm-pc-bios-s390-ccw-Makefile-Use-z-noexecstack-to-silen.patch [bz#2220866] - kvm-pc-bios-s390-ccw-Fix-indentation-in-start.S.patch [bz#2220866] - kvm-pc-bios-s390-ccw-Provide-space-for-initial-stack-fra.patch [bz#2220866] - kvm-pc-bios-s390-ccw-Don-t-use-__bss_start-with-the-larl.patch [bz#2220866] - kvm-ui-Fix-pixel-colour-channel-order-for-PNG-screenshot.patch [bz#2222579] - kvm-block-blkio-fix-module_block.py-parsing.patch [bz#2213317] - kvm-Fix-virtio-blk-vhost-vdpa-typo-in-spec-file.patch [bz#2213317] - Resolves: bz#2211609 (With virtio-iommu and vfio-pci, qemu reports "warning: virtio-iommu page mask 0xfffffffffffff000 does not match 0x40201000") - Resolves: bz#2211634 ([aarch64] With virtio-iommu and vfio-pci, qemu coredump when host using kernel-64k package) - Resolves: bz#2192818 ([VFIO LM] Live migration) - Resolves: bz#2220866 (Misaligned symbol for s390-ccw image during qemu-kvm build) - Resolves: bz#2222579 (PNG screendump doesn't save screen correctly) - Resolves: bz#2213317 (Enable libblkio-based block drivers in QEMU)
69 lines
2.5 KiB
Diff
69 lines
2.5 KiB
Diff
From 76208f7824d5139ac8d86140b0e01031b67638cc Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@redhat.com>
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Date: Wed, 12 Jul 2023 17:46:56 +0200
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Subject: [PATCH 04/37] vfio/migration: Skip log_sync during migration SETUP
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state
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Cédric Le Goater <clg@redhat.com>
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RH-MergeRequest: 179: vfio: live migration support
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RH-Bugzilla: 2192818
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RH-Acked-by: Eric Auger <eric.auger@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [2/28] 4c340992b472ac4627b57705f4e971f14bbb0846 (clegoate/qemu-kvm-c9s)
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Bugzilla: https://bugzilla.redhat.com/2192818
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commit ff180c6bd7a8
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Author: Avihai Horon <avihaih@nvidia.com>
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Date: Mon Apr 3 16:00:00 2023 +0300
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vfio/migration: Skip log_sync during migration SETUP state
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Currently, VFIO log_sync can be issued while migration is in SETUP
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state. However, doing this log_sync is at best redundant and at worst
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can fail.
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Redundant -- all RAM is marked dirty in migration SETUP state and is
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transferred only after migration is set to ACTIVE state, so doing
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log_sync during migration SETUP is pointless.
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Can fail -- there is a time window, between setting migration state to
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SETUP and starting dirty tracking by RAM save_live_setup handler, during
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which dirty tracking is still not started. Any VFIO log_sync call that
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is issued during this time window will fail. For example, this error can
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be triggered by migrating a VM when a GUI is active, which constantly
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calls log_sync.
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Fix it by skipping VFIO log_sync while migration is in SETUP state.
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Fixes: 758b96b61d5c ("vfio/migrate: Move switch of dirty tracking into vfio_memory_listener")
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Signed-off-by: Avihai Horon <avihaih@nvidia.com>
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Link: https://lore.kernel.org/r/20230403130000.6422-1-avihaih@nvidia.com
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Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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Signed-off-by: Cédric Le Goater <clg@redhat.com>
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---
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hw/vfio/common.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/hw/vfio/common.c b/hw/vfio/common.c
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index 4d01ea3515..78358ede27 100644
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--- a/hw/vfio/common.c
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+++ b/hw/vfio/common.c
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@@ -478,7 +478,8 @@ static bool vfio_devices_all_dirty_tracking(VFIOContainer *container)
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VFIODevice *vbasedev;
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MigrationState *ms = migrate_get_current();
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- if (!migration_is_setup_or_active(ms->state)) {
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+ if (ms->state != MIGRATION_STATUS_ACTIVE &&
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+ ms->state != MIGRATION_STATUS_DEVICE) {
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return false;
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}
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--
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2.39.3
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