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authorZhenzhong Duan <zhenzhong.duan@intel.com>2024-11-04 20:55:34 +0800
committerMichael S. Tsirkin <mst@redhat.com>2024-11-04 16:03:25 -0500
commite70e83f561c45864eeb0945ae0298caa595262d2 (patch)
tree88b9b855d4bf94d1aa62bc491e27bfe9e74002b1 /hw/char/imx_serial.c
parent65fb66980d3a918ebe1e665cf6ae4ceb8dea2db1 (diff)
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intel_iommu: Send IQE event when setting reserved bit in IQT_TAIL
According to VTD spec, Figure 11-22, Invalidation Queue Tail Register, "When Descriptor Width (DW) field in Invalidation Queue Address Register (IQA_REG) is Set (256-bit descriptors), hardware treats bit-4 as reserved and a value of 1 in the bit will result in invalidation queue error." Current code missed to send IQE event to guest, fix it. Fixes: c0c1d351849b ("intel_iommu: add 256 bits qi_desc support") Suggested-by: Yi Liu <yi.l.liu@intel.com> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com> Message-Id: <20241104125536.1236118-2-zhenzhong.duan@intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/char/imx_serial.c')
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