32 lines
1.3 KiB
Diff
32 lines
1.3 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Stefan Reiter <s.reiter@proxmox.com>
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Date: Thu, 4 Feb 2021 17:06:19 +0100
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Subject: [PATCH] migration: only check page size match if RAM postcopy is
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enabled
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Postcopy may also be advised for dirty-bitmap migration only, in which
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case the remote page size will not be available and we'll instead read
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bogus data, blocking migration with a mismatch error if the VM uses
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hugepages.
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Fixes: 58110f0acb ("migration: split common postcopy out of ram postcopy")
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Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
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Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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---
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migration/ram.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/migration/ram.c b/migration/ram.c
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index 7811cde643..6ace15261c 100644
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--- a/migration/ram.c
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+++ b/migration/ram.c
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@@ -3521,7 +3521,7 @@ 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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