On Mon, Nov 07, 2016 at 03:09:47PM +0800, Jason Wang wrote:
> To avoid duplicated name and ease debugging.
> 
> Cc: Michael S. Tsirkin <m...@redhat.com>
> Cc: Paolo Bonzini <pbonz...@redhat.com>
> Cc: Richard Henderson <r...@twiddle.net>
> Cc: Eduardo Habkost <ehabk...@redhat.com>
> Acked-by: Peter Xu <pet...@redhat.com>
> Signed-off-by: Jason Wang <jasow...@redhat.com>
> ---
>  hw/i386/intel_iommu.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
> index 1655a65..5272c30 100644
> --- a/hw/i386/intel_iommu.c
> +++ b/hw/i386/intel_iommu.c
> @@ -2323,6 +2323,7 @@ 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() */
> @@ -2336,6 +2337,7 @@ 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);

Better with bus number as well? ;)

Like: "%02x:%02x.%x" for (bus, dev, fn).

Thanks,

-- peterx

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