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migration: only check page size match if RAM postcopy is enabled
Postcopy may also be advised for dirty-bitmap migration only, in which
case the remote page size will not be available and we'll instead read
bogus data, blocking migration with a mismatch error if the VM uses
hugepages.
Fixes: 58110f0acb
("migration: split common postcopy out of ram postcopy")
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Message-Id: <20210204163522.13291-1-s.reiter@proxmox.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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parent
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@ -3808,7 +3808,7 @@ static int ram_load_precopy(QEMUFile *f)
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}
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}
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/* For postcopy we need to check hugepage sizes match */
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if (postcopy_advised &&
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if (postcopy_advised && migrate_postcopy_ram() &&
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block->page_size != qemu_host_page_size) {
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uint64_t remote_page_size = qemu_get_be64(f);
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if (remote_page_size != block->page_size) {
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