>>> On 20.03.17 at 12:49, wrote:
>> @@ -648,6 +647,13 @@ int amd_iommu_map_page(struct domain *d,
>>
>> spin_lock(&hd->arch.mapping_lock);
>>
>> +rc = amd_iommu_alloc_root(hd);
>> +if ( rc )
>> +{
>> +spin_unlock(&hd->arch.mapping_lock);
>> +return rc;
>
> Within
Hi Jan,
Sorry for delay. Please seem my comment below.
On 3/3/17 21:29, Jan Beulich wrote:
This was my originally intended fix for the AMD side of XSA-207:
There's no need to unconditionally allocate the root table, and with
that there's then also no way to leak it when a guest has no devices
a
This was my originally intended fix for the AMD side of XSA-207:
There's no need to unconditionally allocate the root table, and with
that there's then also no way to leak it when a guest has no devices
assigned.
Signed-off-by: Jan Beulich
--- a/xen/drivers/passthrough/amd/iommu_map.c
+++ b/xen/
