Re: [XEN PATCH v4 0/5] x86/iommu: Drop IOMMU support when cx16 isn't supported

2024-04-15 Thread Teddy Astie
Le 15/04/2024 à 14:15, Teddy Astie a écrit : > All hardware that supports VT-d/AMD-Vi that exists also supports cx16 (aside > specifically crafted virtual machines). > > Some IOMMU code paths in Xen consider cases where VT-d/AMD-Vi is supported > while cx16 isn't, those paths may be bugged and are

[XEN PATCH v4 0/5] x86/iommu: Drop IOMMU support when cx16 isn't supported

2024-04-15 Thread Teddy Astie
All hardware that supports VT-d/AMD-Vi that exists also supports cx16 (aside specifically crafted virtual machines). Some IOMMU code paths in Xen consider cases where VT-d/AMD-Vi is supported while cx16 isn't, those paths may be bugged and are barely tested, dead code in practice. Disable IOMMU i