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| author | Laszlo Ersek <lersek@redhat.com> | 2015-11-30 18:46:55 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-11-30 18:46:55 +0000 |
| commit | 92b87f1c8c0b639315545248488241aee71c51e8 (patch) | |
| tree | 308fbb126312b911758f7112072357cd9ea9b55d /BaseTools/Source/Python/Ecc/ParserWarning.py | |
| parent | bb0f18b0bce682f6780af997de45bcef146c11ca (diff) | |
| download | edk2-platforms-92b87f1c8c0b639315545248488241aee71c51e8.tar.xz | |
OvmfPkg: build CpuS3DataDxe for -D SMM_REQUIRE
The PiSmmCpuDxeSmm driver from UefiCpuPkg depends on the ACPI_CPU_DATA
structure -- created by a platform- and CPU-specific driver -- in order to
support ACPI S3. The address of this structure is communicated through the
dynamic PCD PcdCpuS3DataAddress.
The "UefiCpuPkg/Include/AcpiCpuData.h" header file documents the fields of
this structure in detail.
The simple/generic "UefiCpuPkg/CpuS3DataDxe" driver creates and populates
the structure in a conformant way, and it co-operates well with
PiSmmCpuDxeSmm, for OVMF's purposes.
PlatformBdsLib CpuS3DataDxe PiSmmCpuDxeSmm S3Resume2Pei
(DXE_DRIVER) (DXE_DRIVER) (DXE_SMM_DRIVER) (PEIM)
-------------- --------------- ---------------- --------------
normal collects data
boot except MTRR
settings into
ACPI_CPU_DATA
sets
PcdCpuS3Da...
signals
End-of-Dxe
|
+----------> collects MTRR
settings into
ACPI_CPU_DATA
installs
[Dxe]Smm
ReadyToLock
|
+---------------------------> fetches
PcdCpuS3Dat...
copies
ACPI_CPU_DATA
into SMRAM
runtime
S3
suspend
S3 transfers
resume control to
PiSmmCpuDxe...
|
uses <----+
ACPI_CPU_DATA
from SMRAM
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19060 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'BaseTools/Source/Python/Ecc/ParserWarning.py')
0 files changed, 0 insertions, 0 deletions