| Message ID | 1501575048-13485-2-git-send-email-frederic.konrad@adacore.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/include/exec/memory.h b/include/exec/memory.h index 400dd44..4ded02c 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -154,6 +154,10 @@ struct MemoryRegionOps { * @offset is the location of the pointer inside @mr. * * Returns a pointer to a location which contains guest code. + * + * Warning: This breaks migration if used before or during migration + * because mmio-interface device will be migrated and because + * RAMBlock list _must_ be static during migration. */ void *(*request_ptr)(void *opaque, hwaddr addr, unsigned *size, unsigned *offset);
There are two potential corner cases with mmio-execution: * It adds a mmio-interface device which will be migrated. * It modifies the RAMBlock list during live migration which odd side effects. Signed-off-by: KONRAD Frederic <frederic.konrad@adacore.com> --- include/exec/memory.h | 4 ++++ 1 file changed, 4 insertions(+)