Re: [PATCH v5 19/19] iommu/dma: Add support for mapping MSIs

2016-08-25 Thread Auger Eric
Hi Robin, On 23/08/2016 21:05, Robin Murphy wrote: > When an MSI doorbell is located downstream of an IOMMU, attaching > devices to a DMA ops domain and switching on translation leads to a rude > shock when their attempt to write to the physical address returned by > the irqchip driver faults (or

Re: [RFC PATCH v2 04/20] x86: Secure Memory Encryption (SME) support

2016-08-25 Thread Thomas Gleixner
On Mon, 22 Aug 2016, Tom Lendacky wrote: > Provide support for Secure Memory Encryption (SME). This initial support > defines the memory encryption mask as a variable for quick access and an > accessor for retrieving the number of physical addressing bits lost if > SME is enabled. What is the