diff options
| author | Zhenzhong Duan <zhenzhong.duan@intel.com> | 2024-01-25 15:37:06 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-02-14 06:09:32 -0500 |
| commit | 8a6b3f4dc95a064e88adaca86374108da0ecb38d (patch) | |
| tree | bf9aaf9de39b03113a4afb285df31847114318fb /hw/arm | |
| parent | 9a457383ce9d309d4679b079fafb51f0a2d949aa (diff) | |
smmu: Clear SMMUPciBus pointer cache when system reset
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.auger@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Message-Id: <20240125073706.339369-3-zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/arm')
| -rw-r--r-- | hw/arm/smmu-common.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); } |