Re: [Xen-devel] [PATCH] AMD IOMMU: Introduce support for IVHD block type 11h

Hi Jan, On 05/19/2016 04:09 AM, Jan Beulich wrote: >>>+int __init amd_iommu_get_supported_ivhd_type(void) >>>+{ >>>+if ( unlikely(acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_MSI) ) >>>+return -EPERM; >> >>This check appears out of the blue, and isn't being mentioned in >>the

Re: [Xen-devel] [PATCH] AMD IOMMU: Introduce support for IVHD block type 11h

>>> On 19.05.16 at 08:30, wrote: > On 05/17/2016 09:25 AM, Jan Beulich wrote: > On 13.05.16 at 21:54, wrote: >>> --- a/xen/drivers/passthrough/amd/iommu_acpi.c >>> +++ b/xen/drivers/passthrough/amd/iommu_acpi.c >>> [...] >>> @@

Re: [Xen-devel] [PATCH] AMD IOMMU: Introduce support for IVHD block type 11h

Hi Jan, On 05/17/2016 09:25 AM, Jan Beulich wrote: On 13.05.16 at 21:54, wrote: --- a/xen/drivers/passthrough/amd/iommu_acpi.c +++ b/xen/drivers/passthrough/amd/iommu_acpi.c [...] @@ -901,7 +911,7 @@ static int __init parse_ivhd_block(const struct

Re: [Xen-devel] [PATCH] AMD IOMMU: Introduce support for IVHD block type 11h

>>> On 13.05.16 at 21:54, wrote: > --- a/xen/drivers/passthrough/amd/iommu_acpi.c > +++ b/xen/drivers/passthrough/amd/iommu_acpi.c > @@ -821,13 +821,23 @@ static u16 __init parse_ivhd_device_special( > return dev_length; > } > > +static inline int

[Xen-devel] [PATCH] AMD IOMMU: Introduce support for IVHD block type 11h

From: Suravee Suthikulpanit Along with the IVHD block type 10h, newer AMD platforms also come with types 11h, which is a superset of the older one. Having multiple IVHD block types in the same platform allows backward compatibility of newer systems to work with