Use ACPI table event to get DMAR table instead of using ACPI SDT
notification as ACPI SDT is optional and the default value of
PcdInstallAcpiSdtProtocol is FALSE in MdeModulePkg.dec.
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
(cherry picked from commit f6f486e7bf)
Before memory is ready, this sample produces one VTd engine.
After memory and silicon is initialized, this sample produces
both IGD VTd engine and all-rest VTd engine by reinstall the
FV_INFO_PPI.
This update is to demonstrate how to support pre-mem VTd usage.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit af807bb986)
Remove memory discovered dependency to support both premem
VTD_INFO_PPI and postmem VTD_INFO_PPI.
If VTD_INFO_PPI is installed before memory is ready, this
driver protects all memory region.
If VTD_INFO_PPI is installed or reinstalled after memory
is ready, this driver allocates DMA buffer and protect rest.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
(cherry picked from commit a1e7cd0b02)
Since the exception list is not a recommended way, we returns
EFI_UNSUPPORTED in the sample code.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit e5d847476a)
Change ExitBootServices TPL to CALLBACK, so that a device
can disable BME before IOMMU grants access right.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit 01df510319)
According to definition (Acpi.h and MdePkg.dec),
gEfiAcpiTableGuid = gEfiAcpi20TableGuid, and the code is trying
to parse ACPI 2.0 first and then ACPI 1.0, but it uses
gEfiAcpiTableGuid wrongly for ACPI 1.0, this patch is to fix it.
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
(cherry picked from commit 118f1657b9)
In S3 resume, before system transfer to waking vector,
the VTdPmr need turn off VTd protection based upon VTdPolicy.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit fc8be1ad9a)
Make sure the context table are flush to memory.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit 73a2fe8b87)
Let system report RMRR table for the platform support
PEI graphic.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit 70dc3ec5a7)
In order to support PEI graphic, we let VTdPmrPei driver
parse DMAR table RMRR entry and allow the UMA access.
If a system has no PEI IGD, no RMRR is needed. The behavior
is unchanged.
If a system has PEI IGD, it must report RMRR in PEI phase.
The PeiVTdPrm will program the IGD VTd engine to skip the
RMRR region, and program the rest PCI VTd engine to skip
the another DMA buffer allocated in PEI phase for other
device driver.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit 8e9da4ba3c)
