Re: [PATCH 2/4] iommu: Add I/O ASID allocator

2019-09-20 Thread Jean-Philippe Brucker
On Wed, Sep 18, 2019 at 04:26:32PM -0700, Jacob Pan wrote: > From: Jean-Philippe Brucker > > Some devices might support multiple DMA address spaces, in particular > those that have the PCI PASID feature. PASID (Process Address Space ID) > allows to share process address spaces with devices

Re: [PATCH 2/4] iommu: Add I/O ASID allocator

2019-09-19 Thread kbuild test robot
Hi Jacob, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [cannot apply to v5.3 next-20190918] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url:

[PATCH 2/4] iommu: Add I/O ASID allocator

2019-09-18 Thread Jacob Pan
From: Jean-Philippe Brucker Some devices might support multiple DMA address spaces, in particular those that have the PCI PASID feature. PASID (Process Address Space ID) allows to share process address spaces with devices (SVA), partition a device into VM-assignable entities (VFIO mdev) or