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| author | Ruiyu Ni <ruiyu.ni@intel.com> | 2017-10-31 15:53:18 +0800 |
|---|---|---|
| committer | Ruiyu Ni <ruiyu.ni@intel.com> | 2017-11-07 11:23:41 +0800 |
| commit | 050763db0730a0bb46235cec87e3716632dc532c (patch) | |
| tree | 47925b5a3fde2304f319057e07cfc89d6e8d5c7d /MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h | |
| parent | 3d34e92faba409a6c6629ce4c1373181879f5e52 (diff) | |
| download | edk2-050763db0730a0bb46235cec87e3716632dc532c.tar.gz edk2-050763db0730a0bb46235cec87e3716632dc532c.tar.bz2 edk2-050763db0730a0bb46235cec87e3716632dc532c.zip | |
MdeModulePkg/PciBus: Disable BME of all devices when entering RT
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: Michael Turner <michael.turner@microsoft.com>
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jeff Fan <vanjeff_919@hotmail.com>
Diffstat (limited to 'MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h b/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h index 55eb3a5a80..79b5b71082 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h @@ -18,6 +18,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include <PiDxe.h>
+#include <Guid/EventGroup.h>
+
#include <Protocol/LoadedImage.h>
#include <Protocol/PciHostBridgeResourceAllocation.h>
#include <Protocol/PciIo.h>
|