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authorDavid Hildenbrand <david@redhat.com>2021-07-27 10:25:43 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2021-10-02 08:43:22 +0200
commit602f8ea79ce39b7bd6d2e22c686ef05227e1876b (patch)
treedd79a903a345ca68949e1abdd570aa222a0e60f0
parent45e576c74533c70b38ba00f0c298dcdbc1635163 (diff)
softmmu/memory_mapping: never merge ranges accross memory regions
Let's make sure to not merge when different memory regions are involved. Unlikely, but theoretically possible. Acked-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Peter Xu <peterx@redhat.com> Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Alex Williamson <alex.williamson@redhat.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Claudio Fontana <cfontana@suse.de> Cc: Thomas Huth <thuth@redhat.com> Cc: "Alex Bennée" <alex.bennee@linaro.org> Cc: Peter Xu <peterx@redhat.com> Cc: Laurent Vivier <lvivier@redhat.com> Cc: Stefan Berger <stefanb@linux.ibm.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20210727082545.17934-3-david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--softmmu/memory_mapping.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/softmmu/memory_mapping.c b/softmmu/memory_mapping.c
index e7af276546..d401ca7e31 100644
--- a/softmmu/memory_mapping.c
+++ b/softmmu/memory_mapping.c
@@ -229,7 +229,8 @@ static void guest_phys_blocks_region_add(MemoryListener *listener,
/* we want continuity in both guest-physical and host-virtual memory */
if (predecessor->target_end < target_start ||
- predecessor->host_addr + predecessor_size != host_addr) {
+ predecessor->host_addr + predecessor_size != host_addr ||
+ predecessor->mr != section->mr) {
predecessor = NULL;
}
}