Re: [PATCH v2 1/1] iommu/vt-d: Serialize IOMMU GCMD register modifications

Hi, On 8/27/20 1:39 PM, Tian, Kevin wrote: From: Lu Baolu Sent: Thursday, August 27, 2020 12:25 PM The VT-d spec requires (10.4.4 Global Command Register, GCMD_REG General Description) that: If multiple control fields in this register need to be modified, software must serialize the modificat

RE: [PATCH v2 1/1] iommu/vt-d: Serialize IOMMU GCMD register modifications

> From: Lu Baolu > Sent: Thursday, August 27, 2020 12:25 PM > > The VT-d spec requires (10.4.4 Global Command Register, GCMD_REG > General > Description) that: > > If multiple control fields in this register need to be modified, software > must serialize the modifications through multiple writes