Re: [PATCH 1/1] iommu/vt-d: Remove unnecessary WARN_ON_ONCE()

2020-01-24 Thread Joerg Roedel
On Sat, Jan 18, 2020 at 10:14:11AM +0800, Lu Baolu wrote: > Hi Joerg, > > On 1/17/20 5:59 PM, Joerg Roedel wrote: > > On Thu, Jan 16, 2020 at 09:52:36AM +0800, Lu Baolu wrote: > > > Address field in device TLB invalidation descriptor is qualified > > > by the S field. If S field is zero, a single

Re: [PATCH 1/1] iommu/vt-d: Remove unnecessary WARN_ON_ONCE()

2020-01-17 Thread Lu Baolu
Hi Joerg, On 1/17/20 5:59 PM, Joerg Roedel wrote: On Thu, Jan 16, 2020 at 09:52:36AM +0800, Lu Baolu wrote: Address field in device TLB invalidation descriptor is qualified by the S field. If S field is zero, a single page at page address specified by address [63:12] is requested to be invalida

Re: [PATCH 1/1] iommu/vt-d: Remove unnecessary WARN_ON_ONCE()

2020-01-17 Thread Joerg Roedel
On Thu, Jan 16, 2020 at 09:52:36AM +0800, Lu Baolu wrote: > Address field in device TLB invalidation descriptor is qualified > by the S field. If S field is zero, a single page at page address > specified by address [63:12] is requested to be invalidated. If S > field is set, the least significant

[PATCH 1/1] iommu/vt-d: Remove unnecessary WARN_ON_ONCE()

2020-01-15 Thread Lu Baolu
Address field in device TLB invalidation descriptor is qualified by the S field. If S field is zero, a single page at page address specified by address [63:12] is requested to be invalidated. If S field is set, the least significant bit in the address field with value 0b (say bit N) indicates the i