On 12/28/13 21:03, Laszlo Ersek wrote:
> https://github.com/lersek/edk2/commits/s3_v3
>
> v3:
> - Implement OVMF-specific LockBoxLib (on top of EmuNvramLib), rather
> than emulating SMRAM for edk2's SMM-based LockBoxLib. Consequently,
> don't pull in the SMM core and dependent SMM drivers, but rebase the
> S3 machinery to the new LockBoxLib.
This is an excerpt from a logfile written while cold booting, suspending
and resuming a 8 GB guest. (Both PEI and DXE are X64.) Annotations are
to the right (column 124). The LockBox messages are logged by
[PATCH v3 09/24] OvmfPkg: implement LockBoxLib.
Cold boot:
SecCoreStartupWithStack(0xFFFCC000, 0x80000)
#
#
PeiInstallPeiMemory MemoryBegin 0xDC000000, MemoryLength 0x4000000
#
Reserved variable store memory: 0xDFFD0000; size: 128kb <--+
#
Platform PEI Firmware Volume Initialization |
#
Firmware Volume HOB: 0x800000 0x800000 <-------------------|--+
# decompressed firmware
Emulated NVRAM at 0x01400000, size 0x02100000
<------------|--|--+--------------------+ #
LockBox: 1MB, S3 Resume Pool: 32MB
Install PPI: 7408D748-FC8C-4EE6-9288-C4BEC092A410 | | |
| #
Temp Stack : BaseAddress=0x78000 Length=0x8000 <-------+ | | |
| #
Temp Heap : BaseAddress=0x70000 Length=0x8D8 <-------+ | | |
| #
Total temporary memory: 65536 bytes. | | | |
| #
temporary memory stack ever used: 32768 bytes. | | | |
| #
temporary memory heap used: 2264 bytes. | | | |
| #
Old Stack size 32768, New stack size 131072 | | | |
| #
Heap Offset = 0x0 Stack Offset = 0xDBFA0000 | | | |
| #
Stack Hob: BaseAddress=0xDC000000 Length=0x20000 | | | |
| #
TemporaryRamMigration(0x70000, 0xDC018000, 0x10000) | | | |
| #
| | | |
| #
DXE IPL Entry | | | |
| #
| | | |
| #
Memory Allocation 0x00000006 0xDFFD0000 - 0xDFFFFFFF --|---+ | |
| # type 0x6 == EfiRuntimeServicesData
Memory Allocation 0x0000000A 0x70000 - 0x7FFFF --------+ | |
| # type 0xA == EfiACPIMemoryNVS
Memory Allocation 0x0000000A 0x80000 - 0x85FFF | |
| # cover initial X64 page tables
Memory Allocation 0x0000000A 0x800000 - 0xFFFFFF -------------+ |
| #
Memory Allocation 0x0000000A 0x1000000 - 0x120FFFF |
| # temp/scratch buffers during fw
decompr.
Memory Allocation 0x0000000A 0x1400000 - 0x34FFFFF --------------+
| #
Memory Allocation 0x00000004 0xDF868000 - 0xDF887FFF
| # type 0x4 == EfiBootServicesData
Memory Allocation 0x00000004 0xDFFCF000 - 0xDFFCFFFF
| #
Memory Allocation 0x00000004 0xDFFB8000 - 0xDFFCEFFF
| #
Memory Allocation 0x00000004 0xDFFAE000 - 0xDFFB7FFF
| #
Memory Allocation 0x00000004 0xDFFA3000 - 0xDFFADFFF
| #
Memory Allocation 0x00000004 0xDF8C1000 - 0xDFFA2FFF
| #
Memory Allocation 0x00000004 0xDF888000 - 0xDF8C0FFF
| #
Memory Allocation 0x00000003 0xDF888000 - 0xDF8C0FFF
| # type 0x3 == EfiBootServicesCode
Memory Allocation 0x00000004 0xDF868000 - 0xDF887FFF
| #
Memory Allocation 0x00000004 0xDF826000 - 0xDF867FFF
| #
Memory Allocation 0x00000004 0xDC000000 - 0xDC01FFFF
| #
| #
S3Ready!
| # BdsLibBootViaBootOption() ->
S3Ready()
| #
SaveLockBox: Guid=DEA652B0-D587-4C54-B5B4-C682E7A0AA3D Buffer=DF817000
Length=0xA <-+-|-----------------------+ # mAcpiS3IdtrProfileGuid;
source buffer in EfiReservedMemoryType
SetLockBoxAttributes: Guid=DEA652B0-D587-4C54-B5B4-C682E7A0AA3D
Attributes=0x1 | | | #
LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE
| | | #
AcpiS3Context: AcpiFacsTable is 0xDF823000
<----------------------------------------|-|-------------------+ | #
AcpiS3Context: IdtrProfile is 0xDF817000
-------------------------------------------+ | | | #
AcpiS3Context: S3NvsPageTableAddress is 0x 0
| | | #
AcpiS3Context: S3DebugBufferAddress is 0xDF815000
<-----------------------------------|-------------------|-+ | # debug
buffer in EfiReservedMemoryType
| | | | #
SaveLockBox: Guid=AF9FFD67-EC10-488A-9DFC-6CBF5EE22C2E Buffer=DF887BA8
Length=0x8 <---|-------+ | | | # gEfiAcpiVariableGuid,
Buffer points to pointer to AcpiS3Context
| | | | | #
SaveLockBox: Guid=0EF98D3A-3E33-497A-A401-77BE3EB74F38 Buffer=DF818000
Length=0x30 <--|-------|-+ | | | # gEfiAcpiS3ContextGuid,
Buffer points to AcpiS3Context (in EfiReservedMemoryType)
SetLockBoxAttributes: Guid=0EF98D3A-3E33-497A-A401-77BE3EB74F38
Attributes=0x1 | | | | | | #
LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE
| | | | | | #
SaveLockBox: Guid=3079818C-46D4-4A73-AEF3-E3E46CF1EEDB Buffer=DF8877C0
Length=0x8 <---|-------|-|-+ | | | #
gEfiBootScriptExecutorVariableGuid, Buffer points to pointer to
EfiBootScriptExecutorVariable
| | | | | | | #
SaveLockBox: Guid=79CB58C4-AC51-442F-AFD7-98E47D2E9908 Buffer=DC8D1000
Length=0x8 <---|-------|-|-|-+ | | | #
gEfiBootScriptExecutorContextGuid, Buffer points to
EfiBootScriptExecutorVariable (in EfiReservedMemoryType)
SetLockBoxAttributes: Guid=79CB58C4-AC51-442F-AFD7-98E47D2E9908
Attributes=0x1 | | | | | | | | #
LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE
| | | | | | | | #
SaveLockBox: Guid=9A8D3433-9FE8-42B6-870B-1E31C84EBE3B Buffer=DC8D2000
Length=0x17D40 | <-----|-|-|-|-----|-|-|-+ #
mBootScriptExecutorImageGuid, Buffer points to image relocated to
EfiReservedMemoryType
SetLockBoxAttributes: Guid=9A8D3433-9FE8-42B6-870B-1E31C84EBE3B
Attributes=0x1 | | | | | | | | | #
LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE
| | | | | | | | | #
SaveLockBox: Guid=AEA6B965-DCF5-4311-B4B8-0F12464494D2 Buffer=DD7A4000
Length=0x58D4 <-|-------|-|-|-|-----|-|-|-|-+ # mBootScriptDataGuid, Buffer
points to script in EfiACPIMemoryNVS
SetLockBoxAttributes: Guid=AEA6B965-DCF5-4311-B4B8-0F12464494D2
Attributes=0x1 | | | | | | | | | | #
LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE
| | | | | | | | | | #
SaveLockBox: Guid=B5AF1D7A-B8CF-4EB3-8925-A820E16B687D Buffer=DD7A4000
Length=0x58D4 | | | | | | | | | | # mBootScriptDataOrgGuid,
duplicate of boot script
| | | | | | | | | | #
SaveLockBox: Guid=1810AB4A-2314-4DF6-81EB-67C6EC058591 Buffer=DF824000
Length=0x8 <---|-------|-|-|-|-----|-|-|-|-|-+ # mBootScriptHeaderDataGuid,
Buffer points to pointer to boot script
SetLockBoxAttributes: Guid=1810AB4A-2314-4DF6-81EB-67C6EC058591
Attributes=0x1 | | | | | | | | | | | #
LOCK_BOX_ATTRIBUTE_RESTORE_IN_PLACE
| | | | | | | | | | | #
Booting fedora 19 shim
| | | | | | | | | | | #
| | | | | | | | | | |
S3 Resume:
| | | | | | | | | | |
| | | | | | | | | | |
SecCoreStartupWithStack(0xFFFCC000, 0x80000)
| | | | | | | | | | | #
| | | | | | | | | | | #
PeiInstallPeiMemory MemoryBegin 0x1500000, MemoryLength 0x2000000
--------------------+ <-+-+-|-|-|-|-----|-|-|-|-|-|-+ # == S3 Resume Pool
Platform PEI Firmware Volume Initialization
| | | | | | | | | | | | | #
Firmware Volume HOB: 0x800000 0x800000
<------------------------------------------------+ | | | | | | | | | | | |
| # decompressed firmware
Install PPI: 7408D748-FC8C-4EE6-9288-C4BEC092A410
| | | | | | | | | | | | | | #
Temp Stack : BaseAddress=0x78000 Length=0x8000
<--------------------------------------+ | | | | | | | | | | | | | | #
Temp Heap : BaseAddress=0x70000 Length=0x878
<--------------------------------------+ | | | | | | | | | | | | | | #
Total temporary memory: 65536 bytes.
| | | | | | | | | | | | | | | #
temporary memory stack ever used: 32768 bytes.
| | | | | | | | | | | | | | | #
temporary memory heap used: 2168 bytes.
| | | | | | | | | | | | | | | #
Old Stack size 32768, New stack size 131072
| | | | | | | | | | | | | | | #
Heap Offset = 0x0 Stack Offset = 0x14A0000
| | | | | | | | | | | | | | | #
Stack Hob: BaseAddress=0x1500000 Length=0x20000
<-------------------------------------|-|-+ | | | | | | | | | | | | #
TemporaryRamMigration(0x70000, 0x1518000, 0x10000)
| | | | | | | | | | | | | | | #
| | | | | | | | | | | | | | | #
DXE IPL Entry
| | | | | | | | | | | | | | | #
Enter S3 PEIM
| | | | | | | | | | | | | | | #
| | | | | | | | | | | | | | |
The following "Memory Allocation" (HOB) lines are dumped by a debug
| | | | | | | | | | | | | | |
patch at the beginning of S3RestoreConfig2():
| | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Memory Allocation 00000000-0000-0000-0000-000000000000 0x0000000A 0x70000 -
0x7FFFF --+ | | | | | | | | | | | | | | # type 0xA == EfiACPIMemoryNVS
Memory Allocation 00000000-0000-0000-0000-000000000000 0x0000000A 0x80000 -
0x85FFF | | | | | | | | | | | | | | # cover initial X64 page tables
Memory Allocation 00000000-0000-0000-0000-000000000000 0x0000000A 0x800000 -
0xFFFFFF --+ | | | | | | | | | | | | | #
Memory Allocation 00000000-0000-0000-0000-000000000000 0x0000000A 0x1000000 -
0x120FFFF | | | | | | | | | | | | | # temp/scratch buffers during fw
decompr.
Memory Allocation 4ED4BF27-4092-42E9-807D-527B1D00C9BD 0x00000004 0x1500000 -
0x151FFFF --+ | | | | | | | | | | | | # gEfiHobMemoryAllocStackGuid, type
0x4 == EfiBootServicesData
Memory Allocation 00000000-0000-0000-0000-000000000000 0x00000004 0x2E1E000 -
0x34FFFFF ----+ | | | | | | | | | | | #
| | | | | | | | | | |
Normal log again:
| | | | | | | | | | |
| | | | | | | | | | |
RestoreLockBox: Guid=AF9FFD67-EC10-488A-9DFC-6CBF5EE22C2E Buffer=7C6C8
-----------------------+ | | | <-+ | | | | | | | # loads address of
AcpiS3Context into variable on temp stack
RestoreLockBox: Guid=0EF98D3A-3E33-497A-A401-77BE3EB74F38 Buffer=DF818000
----------------------+ | | <-+ | | | | | | | # restores AcpiS3Context in-place
RestoreLockBox: Guid=3079818C-46D4-4A73-AEF3-E3E46CF1EEDB Buffer=7C6D0
-------------------------|-+ | | | | | | | | | # loads address of
EfiBootScriptExecutorVariable into variable on temp stack
RestoreLockBox: Guid=79CB58C4-AC51-442F-AFD7-98E47D2E9908 Buffer=DC8D1000
----------------------|---+ | | | | | | | | # restores boot script executor
context in-place
| | | | | | | | | | #
AcpiS3Context = DF818000
-----------------------------------------------------------------------|---|----
| | | | | | | #
Waking Vector = 9A1D0
<---------------------------------------------------------------+ | |
| | | | | | | # read from FACS
AcpiS3Context->AcpiFacsTable = DF823000
----------------------------------------------|---------|---|-----+ | | | | | |
#
AcpiS3Context->S3NvsPageTableAddress = 0
| | | | | | | | | #
AcpiS3Context->S3DebugBufferAddress = DF815000
---------------------------------------|---------|---|-------+ | | | | | #
EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint = DC8D2928
| | | | | | | | #
| | | | | | | | #
RestoreAllLockBoxInPlace: Guid=DEA652B0-D587-4C54-B5B4-C682E7A0AA3D
Buffer=DF817000 --|---------|---|---------+ | | | | # mAcpiS3IdtrProfileGuid
RestoreAllLockBoxInPlace: Guid=0EF98D3A-3E33-497A-A401-77BE3EB74F38
Buffer=DF818000 --|---------+ | | | | | # restores AcpiS3Context
in-place again
RestoreAllLockBoxInPlace: Guid=79CB58C4-AC51-442F-AFD7-98E47D2E9908
Buffer=DC8D1000 --|-------------+ | | | | # restores boot script
executor context in-place again
RestoreAllLockBoxInPlace: Guid=9A8D3433-9FE8-42B6-870B-1E31C84EBE3B
Buffer=DC8D2000 --|-------------------------+ | | | # restores relocated boot
script executor image in-place
RestoreAllLockBoxInPlace: Guid=AEA6B965-DCF5-4311-B4B8-0F12464494D2
Buffer=DD7A4000 --|---------------------------+ | | # restores boot script
in-place
RestoreAllLockBoxInPlace: Guid=1810AB4A-2314-4DF6-81EB-67C6EC058591
Buffer=DF824000 --|---------------------------|-+ | # restores pointer to boot
script in-place
| | | #
S3ResumeExecuteBootScript()
| | | #
PeiS3ResumeState - 1520BF0
-----------------------------------------------------------|---------------------------|---+
# heap allocation in S3 Resume Pool
transfer control to Standalone Boot Script Executor
| | #
S3BootScriptExecute:
| | #
TableHeader - 0xDD7A4000
-------------------------------------------------------------|---------------------------+
#
TableHeader.TableLength - 0x000058D4
-------------------------------------------------|---------------------------+
#
|
The bulk of the boot script originates from the QemuVideoDxe / Cirrus
|
PoC patch:
|
|
ExecuteBootScript - DD7A400D
| #
EFI_BOOT_SCRIPT_INFORMATION_OPCODE
| #
BootScriptExecuteInformation - 0xDD7A4014
| #
BootScriptInformation: 43 69 72 72 75 73 20 35 34 34 36 20 42 65 67 69 6E 00
| # "Cirrus 5446 Begin"
| #
[...]
| #
| #
ExecuteBootScript - DD7A98AF
| #
EFI_BOOT_SCRIPT_INFORMATION_OPCODE
| #
BootScriptExecuteInformation - 0xDD7A98B6
| #
BootScriptInformation: 43 69 72 72 75 73 20 35 34 34 36 20 45 6E 64 00
| # "Cirrus 5446 End"
|
The final DEADBEEF info opcode is part of the posted patchset (an empty
|
boot script cannot be saved):
|
|
ExecuteBootScript - DD7A98C6
| #
EFI_BOOT_SCRIPT_INFORMATION_OPCODE
| #
BootScriptExecuteInformation - 0xDD7A98CD
| #
BootScriptInformation: DE AD BE EF
| #
ExecuteBootScript - DD7A98D1
| #
S3_BOOT_SCRIPT_LIB_TERMINATE_OPCODE
| #
S3BootScriptDone - Success
| #
Call SwitchStack() to return to S3 Resume in PEI Phase
| #
Install PPI: 88C9D306-0900-4EB5-8260-3E2DBEDA1F89
| #
Install PPI: 605EA650-C65C-42E1-BA80-91A52AB618C6
| #
Transfer to 16bit OS waking vector - 9A1D0
-------------------------------------------+ #
Thanks,
Laszlo
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