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authorIgor Mammedov <imammedo@redhat.com>2015-09-29 16:53:29 +0200
committerMichael S. Tsirkin <mst@redhat.com>2015-10-02 17:04:32 +0300
commitaa8580cddf011e8cedcf87f7a0fdea7549fc4704 (patch)
tree1969af2815090d7c10ac02daead7bb50a7a9f0a8 /hw/i386/pc_q35.c
parentdf0acded19ec4b826aa095cfc19d341bd66fafd3 (diff)
downloadhqemu-aa8580cddf011e8cedcf87f7a0fdea7549fc4704.zip
hqemu-aa8580cddf011e8cedcf87f7a0fdea7549fc4704.tar.gz
pc: memhp: force gaps between DIMM's GPA
mapping DIMMs non contiguously allows to workaround virtio bug reported earlier: http://lists.nongnu.org/archive/html/qemu-devel/2015-08/msg00522.html in this case guest kernel doesn't allocate buffers that can cross DIMM boundary keeping each buffer local to a DIMM. Suggested-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386/pc_q35.c')
-rw-r--r--hw/i386/pc_q35.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 837e430..1f100b1 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -392,6 +392,7 @@ static void pc_q35_2_4_machine_options(MachineClass *m)
pc_q35_2_5_machine_options(m);
m->alias = NULL;
pcmc->broken_reserved_end = true;
+ pcmc->inter_dimm_gap = false;
SET_MACHINE_COMPAT(m, PC_COMPAT_2_4);
}
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