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fix Read DMAR IQA REG DW #1

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3 changes: 2 additions & 1 deletion hw/i386/intel_iommu.c
Original file line number Diff line number Diff line change
Expand Up @@ -4799,7 +4799,8 @@ static uint64_t vtd_mem_read(void *opaque, hwaddr addr, unsigned size)

/* Invalidation Queue Address Register, 64-bit */
case DMAR_IQA_REG:
val = s->iq | (vtd_get_quad(s, DMAR_IQA_REG) & VTD_IQA_QS);
val = s->iq | (vtd_get_quad(s, DMAR_IQA_REG) & VTD_IQA_QS
| VTD_IQA_DW_MASK );
if (size == 4) {
val = val & ((1ULL << 32) - 1);
}
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