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intel_iommu: name vtd address space with devfn 

To avoid duplicated name and ease debugging.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jason Wang 2016-12-30 18:09:11 +08:00 committed by Michael S. Tsirkin
parent 8607f5c307
commit e0a3c8ccaa
1 changed files with 3 additions and 1 deletions
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4
hw/i386/intel_iommu.c
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@ -2344,6 +2344,7 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
uintptr_t key = (uintptr_t)bus;
VTDBus *vtd_bus = g_hash_table_lookup(s->vtd_as_by_busptr, &key);
VTDAddressSpace *vtd_dev_as;
char name[128];
if (!vtd_bus) {
/* No corresponding free() */
@ -2357,6 +2358,7 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
vtd_dev_as = vtd_bus->dev_as[devfn];
if (!vtd_dev_as) {
snprintf(name, sizeof(name), "intel_iommu_devfn_%d", devfn);
vtd_bus->dev_as[devfn] = vtd_dev_as = g_malloc0(sizeof(VTDAddressSpace));
vtd_dev_as->bus = bus;
@ -2371,7 +2373,7 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
memory_region_add_subregion(&vtd_dev_as->iommu, VTD_INTERRUPT_ADDR_FIRST,
&vtd_dev_as->iommu_ir);
address_space_init(&vtd_dev_as->as,
&vtd_dev_as->iommu, "intel_iommu");
&vtd_dev_as->iommu, name);
}
return vtd_dev_as;
}