On Sun, Apr 26, 2020 at 04:55:25PM +0200, Thomas Gleixner wrote: > Fenghua Yu <fenghua...@intel.com> writes: > > diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h > > index bdeae9291e5c..137bf51f19e6 100644 > > --- a/arch/x86/include/asm/mmu.h > > +++ b/arch/x86/include/asm/mmu.h > > @@ -50,6 +50,10 @@ typedef struct { > > u16 pkey_allocation_map; > > s16 execute_only_pkey; > > #endif > > + > > +#ifdef CONFIG_INTEL_IOMMU_SVM > > + int pasid; > > int? It's a value which gets programmed into the MSR along with the > valid bit (bit 31) set.
BTW, ARM is working on PASID as well. Christoph suggested that the PASID should be defined in mm_struct instead of mm->context so that both ARM and X86 can access it: https://lore.kernel.org/linux-iommu/20200414170252.714402-1-jean-phili...@linaro.org/T/#mb57110ffe1aaa24750eeea4f93b611f0d1913911 So I will define "pasid" to mm_struct in a separate patch in the next version. Thanks. -Fenghua _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu