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| author | Juan Quintela <quintela@redhat.com> | 2023-10-19 10:52:58 +0200 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2023-10-30 17:41:55 +0100 |
| commit | 413d64fedcc8e7f83b19ab4b79e3fd1f871f3564 (patch) | |
| tree | c9bdb795adf0b1769673ab9c5936a82e31b08773 /migration/rdma.c | |
| parent | e77326179d61585457f88ba0c5152cea5bbaabf0 (diff) | |
| download | focaccia-qemu-413d64fedcc8e7f83b19ab4b79e3fd1f871f3564.tar.gz focaccia-qemu-413d64fedcc8e7f83b19ab4b79e3fd1f871f3564.zip | |
migration: Receiving a zero page non zero is an error
We don't allow non zero compressed pages since:
commit 3edcd7e6ebae3ef0ac178eed5f4225803159562d
Author: Peter Lieven <pl@kamp.de>
Date: Tue Mar 26 10:58:35 2013 +0100
migration: search for zero instead of dup pages
RDMA case is a bit more complicated, but they don't handle it since:
commit a1febc4950f2c6232c002f401d7cd409f6fa6a88
Author: Richard Henderson <rth@twiddle.net>
Date: Mon Aug 29 11:46:14 2016 -0700
cutils: Export only buffer_is_zero
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231019085259.13307-2-quintela@redhat.com>
Diffstat (limited to 'migration/rdma.c')
| -rw-r--r-- | migration/rdma.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/migration/rdma.c b/migration/rdma.c index 2a1852ec7f..2d963fd147 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -3592,7 +3592,11 @@ int rdma_registration_handle(QEMUFile *f) host_addr = block->local_host_addr + (comp->offset - block->offset); - + if (comp->value) { + error_report("rdma: Zero page with non-zero (%d) value", + comp->value); + goto err; + } ram_handle_compressed(host_addr, comp->value, comp->length); break; |