Re: [edk2] [PATCH v2] MdeModulePkg/PciBus: Disable BME of all devices when entering RT

2017-11-06 Thread Yao, Jiewen
chael Turner > <michael.tur...@microsoft.com>; Yao, Jiewen <jiewen@intel.com> > Subject: RE: [edk2] [PATCH v2] MdeModulePkg/PciBus: Disable BME of all devices > when entering RT > > Jiewen, > Any comments? > > Thanks/Ray > > > -Original Message-

Re: [edk2] [PATCH v2] MdeModulePkg/PciBus: Disable BME of all devices when entering RT

2017-11-06 Thread Ni, Ruiyu
.com>; Michael Turner > <michael.tur...@microsoft.com>; Yao, Jiewen <jiewen@intel.com> > Subject: [edk2] [PATCH v2] MdeModulePkg/PciBus: Disable BME of all > devices when entering RT > > The patch ensures all DMA transactions are blocked after ExitBootService. > If a

[edk2] [PATCH v2] MdeModulePkg/PciBus: Disable BME of all devices when entering RT

2017-10-31 Thread Ruiyu Ni
The patch ensures all DMA transactions are blocked after ExitBootService. If a platform enables IOMMU before and needs disable IOMMU after ExitBootService, the IOMMU should be disabled after PCI bus driver disables BME. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: