Re: [PATCH v3 1/1] iommu/vt-d: Serialize IOMMU GCMD register modifications

On Fri, Aug 28, 2020 at 08:06:15AM +0800, Lu Baolu wrote: > 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 to

RE: [PATCH v3 1/1] iommu/vt-d: Serialize IOMMU GCMD register modifications

> From: Lu Baolu > Sent: Friday, August 28, 2020 8:06 AM > > 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