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intel_iommu: cleanup vtd_interrupt_remap_msi() 

Move the memcpy upper into where needed, then share the trace so that we
trace every correct remapping.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Peter Xu 2017-06-09 21:53:29 +08:00 committed by Michael S. Tsirkin
parent b9313021f3
commit e7a3b91fdf
1 changed files with 5 additions and 7 deletions
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12
hw/i386/intel_iommu.c
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@ -2520,7 +2520,8 @@ static int vtd_interrupt_remap_msi(IntelIOMMUState *iommu,
trace_vtd_ir_remap_msi_req(origin->address, origin->data);
if (!iommu || !iommu->intr_enabled) {
goto do_not_translate;
memcpy(translated, origin, sizeof(*origin));
goto out;
}
if (origin->address & VTD_MSI_ADDR_HI_MASK) {
@ -2537,7 +2538,8 @@ static int vtd_interrupt_remap_msi(IntelIOMMUState *iommu,
/* This is compatible mode. */
if (addr.addr.int_mode != VTD_IR_INT_FORMAT_REMAP) {
goto do_not_translate;
memcpy(translated, origin, sizeof(*origin));
goto out;
}
index = addr.addr.index_h << 15 | le16_to_cpu(addr.addr.index_l);
@ -2589,13 +2591,9 @@ static int vtd_interrupt_remap_msi(IntelIOMMUState *iommu,
/* Translate VTDIrq to MSI message */
vtd_generate_msi_message(&irq, translated);
out:
trace_vtd_ir_remap_msi(origin->address, origin->data,
translated->address, translated->data);
return 0;
do_not_translate:
memcpy(translated, origin, sizeof(*origin));
return 0;
}