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memory: Don't set migration bitmap when without migration

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Similar to 9460dee4b2 ("memory: do not touch code dirty bitmap unless
TCG is enabled", 2015-06-05) but for the migration bitmap - we can
skip the MIGRATION bitmap update if migration not enabled.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20190603065056.25211-4-peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Peter Xu 2019-06-03 14:50:48 +08:00 • committed by Juan Quintela
parent 267691b65c
commit ae7a2bca8a
3 changed files with 14 additions and 2 deletions
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2
include/exec/memory.h
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@ -46,6 +46,8 @@
OBJECT_GET_CLASS(IOMMUMemoryRegionClass, (obj), \
TYPE_IOMMU_MEMORY_REGION)
extern bool global_dirty_log;
typedef struct MemoryRegionOps MemoryRegionOps;
typedef struct MemoryRegionMmio MemoryRegionMmio;