From: Zhenzhong Duan <zhenzhong.d...@intel.com>
s->smmu_pcibus_by_bus_num is a SMMUPciBus pointer cache indexed
by bus number, bus number may not always be a fixed value,
i.e., guest reboot to different kernel which set bus number with
different algorithm.
This could lead to smmu_iommu_mr() providing the wrong iommu MR.
Suggested-by: Eric Auger <eric.au...@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.d...@intel.com>
Message-Id: <20240125073706.339369-3-zhenzhong.d...@intel.com>
Reviewed-by: Eric Auger <eric.au...@redhat.com>
Tested-by: Eric Auger <eric.au...@redhat.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
(cherry picked from commit 8a6b3f4dc95a064e88adaca86374108da0ecb38d)
Signed-off-by: Michael Tokarev <m...@tls.msk.ru>
diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
index 9a8ac45431..f58261bb81 100644
--- a/hw/arm/smmu-common.c
+++ b/hw/arm/smmu-common.c
@@ -675,6 +675,8 @@ static void smmu_base_reset_hold(Object *obj)
{
SMMUState *s = ARM_SMMU(obj);
+ memset(s->smmu_pcibus_by_bus_num, 0, sizeof(s->smmu_pcibus_by_bus_num));
+
g_hash_table_remove_all(s->configs);
g_hash_table_remove_all(s->iotlb);
}
--
2.39.2
