Re: [XEN PATCH v5 3/3] x86/iommu: Disable intrerrupt remapping if cx16 is not supported

On 18.04.2024 13:57, Teddy Astie wrote: > All hardware with VT-d/AMD-Vi has CMPXCHG16B support. Check this at > initialisation time, and remove the effectively-dead logic for the non-cx16 > case. > > Suggested-by: Andrew Cooper > Signed-off-by: Teddy Astie Hmm, so this looks to be the code

[XEN PATCH v5 3/3] x86/iommu: Disable intrerrupt remapping if cx16 is not supported

All hardware with VT-d/AMD-Vi has CMPXCHG16B support. Check this at initialisation time, and remove the effectively-dead logic for the non-cx16 case. Suggested-by: Andrew Cooper Signed-off-by: Teddy Astie --- xen/drivers/passthrough/amd/iommu_intr.c | 6 ++